已删除 myproject/chatroom/Dockerfile, myproject/chatroom/docker-compose.yml,...

已删除 myproject/chatroom/Dockerfile, myproject/chatroom/docker-compose.yml, myproject/chatroom/go.mod, myproject/chatroom/go.sum, myproject/chatroom/main.go, myproject/my-app/src/app/ChatRoom/ChatRoom.module.css, myproject/my-app/src/app/ChatRoom/page.tsx, myproject/my-app/src/app/Register/Register.module.css, myproject/my-app/src/app/Register/page.tsx, myproject/my-app/src/app/SetName/SetName.module.css, myproject/my-app/src/app/SetName/page.tsx, myproject/my-app/src/app/public/1 (3).jpg, myproject/my-app/src/app/public/20210920000906_53764.png, myproject/my-app/src/app/public/SetbackGround.jpg, myproject/my-app/src/app/public/backGround.jpg, myproject/my-app/src/app/favicon.ico, myproject/my-app/src/app/globals.css, myproject/my-app/src/app/layout.tsx, myproject/my-app/src/app/page.module.css, myproject/my-app/src/app/page.tsx, myproject/my-app/.gitignore, myproject/my-app/Dockerfile, myproject/my-app/README.md, myproject/my-app/next.config.ts, myproject/my-app/package-lock.json, myproject/my-app/package.json, myproject/my-app/tsconfig.json, myproject/README.md, myproject/package-lock.json

myproject/README.md

-# README
-
-### 1.go返回数组时格式问题
-
-### 2.添加了头像
-
-### 3.使用了`react-icons/md`
-
-
-
-
-
-
-
-## unfinished
-
-### 1.deleted function
-

myproject/chatroom/Dockerfile

-FROM golang:1.24.3-alpine AS builder
-
-WORKDIR /app
-
-COPY go.mod go.sum ./
-
-RUN go mod download
-
-COPY . .
-
-RUN CGO_ENABLED=0 GOOS=linux go build -o /app/main .
-
-FROM alpine:latest
-
-WORKDIR /app
-
-COPY --from=builder /app/main .
-
-EXPOSE 8080
-
-CMD ["/app/main"]

myproject/chatroom/docker-compose.yml

-version: '3.8'
-
-services:
-  backend:
-    build: .
-    ports:
-      - "8080:8080"
-    environment:
-      - DB_HOST=db
-      - DB_PORT=5432
-      - DB_USER=chat_room_user
-      - DB_PASSWORD=secure_password
-      - DB_NAME=chat_room_db
-    depends_on:
-      - db
-
-  db:
-    image: postgres:13-alpine
-    environment:
-      - POSTGRES_USER=chat_room_user
-      - POSTGRES_PASSWORD=secure_password
-      - POSTGRES_DB=chat_room_db
-    ports:
-      - "5432:5432"
-    volumes:
-      - postgres_data:/var/lib/postgresql/data
-
-volumes:
-  postgres_data:

myproject/chatroom/go.mod

-module chatroom
-
-go 1.24.3
-
-require (
-	github.com/gin-gonic/gin v1.10.1
-	github.com/lib/pq v1.10.9
-)
-
-require (
-	github.com/bytedance/sonic v1.11.6 // indirect
-	github.com/bytedance/sonic/loader v0.1.1 // indirect
-	github.com/cloudwego/base64x v0.1.4 // indirect
-	github.com/cloudwego/iasm v0.2.0 // indirect
-	github.com/gabriel-vasile/mimetype v1.4.3 // indirect
-	github.com/gin-contrib/sse v0.1.0 // indirect
-	github.com/go-playground/locales v0.14.1 // indirect
-	github.com/go-playground/universal-translator v0.18.1 // indirect
-	github.com/go-playground/validator/v10 v10.20.0 // indirect
-	github.com/goccy/go-json v0.10.2 // indirect
-	github.com/json-iterator/go v1.1.12 // indirect
-	github.com/klauspost/cpuid/v2 v2.2.7 // indirect
-	github.com/leodido/go-urn v1.4.0 // indirect
-	github.com/mattn/go-isatty v0.0.20 // indirect
-	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
-	github.com/modern-go/reflect2 v1.0.2 // indirect
-	github.com/pelletier/go-toml/v2 v2.2.2 // indirect
-	github.com/twitchyliquid64/golang-asm v0.15.1 // indirect
-	github.com/ugorji/go/codec v1.2.12 // indirect
-	golang.org/x/arch v0.8.0 // indirect
-	golang.org/x/crypto v0.23.0 // indirect
-	golang.org/x/net v0.25.0 // indirect
-	golang.org/x/sys v0.20.0 // indirect
-	golang.org/x/text v0.15.0 // indirect
-	google.golang.org/protobuf v1.34.1 // indirect
-	gopkg.in/yaml.v3 v3.0.1 // indirect
-)

myproject/chatroom/go.sum

-github.com/bytedance/sonic v1.11.6 h1:oUp34TzMlL+OY1OUWxHqsdkgC/Zfc85zGqw9siXjrc0=
-github.com/bytedance/sonic v1.11.6/go.mod h1:LysEHSvpvDySVdC2f87zGWf6CIKJcAvqab1ZaiQtds4=
-github.com/bytedance/sonic/loader v0.1.1 h1:c+e5Pt1k/cy5wMveRDyk2X4B9hF4g7an8N3zCYjJFNM=
-github.com/bytedance/sonic/loader v0.1.1/go.mod h1:ncP89zfokxS5LZrJxl5z0UJcsk4M4yY2JpfqGeCtNLU=
-github.com/cloudwego/base64x v0.1.4 h1:jwCgWpFanWmN8xoIUHa2rtzmkd5J2plF/dnLS6Xd/0Y=
-github.com/cloudwego/base64x v0.1.4/go.mod h1:0zlkT4Wn5C6NdauXdJRhSKRlJvmclQ1hhJgA0rcu/8w=
-github.com/cloudwego/iasm v0.2.0 h1:1KNIy1I1H9hNNFEEH3DVnI4UujN+1zjpuk6gwHLTssg=
-github.com/cloudwego/iasm v0.2.0/go.mod h1:8rXZaNYT2n95jn+zTI1sDr+IgcD2GVs0nlbbQPiEFhY=
-github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
-github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/gabriel-vasile/mimetype v1.4.3 h1:in2uUcidCuFcDKtdcBxlR0rJ1+fsokWf+uqxgUFjbI0=
-github.com/gabriel-vasile/mimetype v1.4.3/go.mod h1:d8uq/6HKRL6CGdk+aubisF/M5GcPfT7nKyLpA0lbSSk=
-github.com/gin-contrib/sse v0.1.0 h1:Y/yl/+YNO8GZSjAhjMsSuLt29uWRFHdHYUb5lYOV9qE=
-github.com/gin-contrib/sse v0.1.0/go.mod h1:RHrZQHXnP2xjPF+u1gW/2HnVO7nvIa9PG3Gm+fLHvGI=
-github.com/gin-gonic/gin v1.10.1 h1:T0ujvqyCSqRopADpgPgiTT63DUQVSfojyME59Ei63pQ=
-github.com/gin-gonic/gin v1.10.1/go.mod h1:4PMNQiOhvDRa013RKVbsiNwoyezlm2rm0uX/T7kzp5Y=
-github.com/go-playground/assert/v2 v2.2.0 h1:JvknZsQTYeFEAhQwI4qEt9cyV5ONwRHC+lYKSsYSR8s=
-github.com/go-playground/assert/v2 v2.2.0/go.mod h1:VDjEfimB/XKnb+ZQfWdccd7VUvScMdVu0Titje2rxJ4=
-github.com/go-playground/locales v0.14.1 h1:EWaQ/wswjilfKLTECiXz7Rh+3BjFhfDFKv/oXslEjJA=
-github.com/go-playground/locales v0.14.1/go.mod h1:hxrqLVvrK65+Rwrd5Fc6F2O76J/NuW9t0sjnWqG1slY=
-github.com/go-playground/universal-translator v0.18.1 h1:Bcnm0ZwsGyWbCzImXv+pAJnYK9S473LQFuzCbDbfSFY=
-github.com/go-playground/universal-translator v0.18.1/go.mod h1:xekY+UJKNuX9WP91TpwSH2VMlDf28Uj24BCp08ZFTUY=
-github.com/go-playground/validator/v10 v10.20.0 h1:K9ISHbSaI0lyB2eWMPJo+kOS/FBExVwjEviJTixqxL8=
-github.com/go-playground/validator/v10 v10.20.0/go.mod h1:dbuPbCMFw/DrkbEynArYaCwl3amGuJotoKCe95atGMM=
-github.com/goccy/go-json v0.10.2 h1:CrxCmQqYDkv1z7lO7Wbh2HN93uovUHgrECaO5ZrCXAU=
-github.com/goccy/go-json v0.10.2/go.mod h1:6MelG93GURQebXPDq3khkgXZkazVtN9CRI+MGFi0w8I=
-github.com/google/go-cmp v0.5.5 h1:Khx7svrCpmxxtHBq5j2mp/xVjsi8hQMfNLvJFAlrGgU=
-github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
-github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
-github.com/json-iterator/go v1.1.12 h1:PV8peI4a0ysnczrg+LtxykD8LfKY9ML6u2jnxaEnrnM=
-github.com/json-iterator/go v1.1.12/go.mod h1:e30LSqwooZae/UwlEbR2852Gd8hjQvJoHmT4TnhNGBo=
-github.com/klauspost/cpuid/v2 v2.0.9/go.mod h1:FInQzS24/EEf25PyTYn52gqo7WaD8xa0213Md/qVLRg=
-github.com/klauspost/cpuid/v2 v2.2.7 h1:ZWSB3igEs+d0qvnxR/ZBzXVmxkgt8DdzP6m9pfuVLDM=
-github.com/klauspost/cpuid/v2 v2.2.7/go.mod h1:Lcz8mBdAVJIBVzewtcLocK12l3Y+JytZYpaMropDUws=
-github.com/knz/go-libedit v1.10.1/go.mod h1:MZTVkCWyz0oBc7JOWP3wNAzd002ZbM/5hgShxwh4x8M=
-github.com/leodido/go-urn v1.4.0 h1:WT9HwE9SGECu3lg4d/dIA+jxlljEa1/ffXKmRjqdmIQ=
-github.com/leodido/go-urn v1.4.0/go.mod h1:bvxc+MVxLKB4z00jd1z+Dvzr47oO32F/QSNjSBOlFxI=
-github.com/lib/pq v1.10.9 h1:YXG7RB+JIjhP29X+OtkiDnYaXQwpS4JEWq7dtCCRUEw=
-github.com/lib/pq v1.10.9/go.mod h1:AlVN5x4E4T544tWzH6hKfbfQvm3HdbOxrmggDNAPY9o=
-github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=
-github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
-github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
-github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd h1:TRLaZ9cD/w8PVh93nsPXa1VrQ6jlwL5oN8l14QlcNfg=
-github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
-github.com/modern-go/reflect2 v1.0.2 h1:xBagoLtFs94CBntxluKeaWgTMpvLxC4ur3nMaC9Gz0M=
-github.com/modern-go/reflect2 v1.0.2/go.mod h1:yWuevngMOJpCy52FWWMvUC8ws7m/LJsjYzDa0/r8luk=
-github.com/pelletier/go-toml/v2 v2.2.2 h1:aYUidT7k73Pcl9nb2gScu7NSrKCSHIDE89b3+6Wq+LM=
-github.com/pelletier/go-toml/v2 v2.2.2/go.mod h1:1t835xjRzz80PqgE6HHgN2JOsmgYu/h4qDAS4n929Rs=
-github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
-github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
-github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
-github.com/stretchr/objx v0.5.0/go.mod h1:Yh+to48EsGEfYuaHDzXPcE3xhTkx73EhmCGUpEOglKo=
-github.com/stretchr/objx v0.5.2/go.mod h1:FRsXN1f5AsAjCGJKqEizvkpNtU+EGNCLh3NxZ/8L+MA=
-github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
-github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
-github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
-github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
-github.com/stretchr/testify v1.8.1/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4=
-github.com/stretchr/testify v1.8.4/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo=
-github.com/stretchr/testify v1.9.0 h1:HtqpIVDClZ4nwg75+f6Lvsy/wHu+3BoSGCbBAcpTsTg=
-github.com/stretchr/testify v1.9.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
-github.com/twitchyliquid64/golang-asm v0.15.1 h1:SU5vSMR7hnwNxj24w34ZyCi/FmDZTkS4MhqMhdFk5YI=
-github.com/twitchyliquid64/golang-asm v0.15.1/go.mod h1:a1lVb/DtPvCB8fslRZhAngC2+aY1QWCk3Cedj/Gdt08=
-github.com/ugorji/go/codec v1.2.12 h1:9LC83zGrHhuUA9l16C9AHXAqEV/2wBQ4nkvumAE65EE=
-github.com/ugorji/go/codec v1.2.12/go.mod h1:UNopzCgEMSXjBc6AOMqYvWC1ktqTAfzJZUZgYf6w6lg=
-golang.org/x/arch v0.0.0-20210923205945-b76863e36670/go.mod h1:5om86z9Hs0C8fWVUuoMHwpExlXzs5Tkyp9hOrfG7pp8=
-golang.org/x/arch v0.8.0 h1:3wRIsP3pM4yUptoR96otTUOXI367OS0+c9eeRi9doIc=
-golang.org/x/arch v0.8.0/go.mod h1:FEVrYAQjsQXMVJ1nsMoVVXPZg6p2JE2mx8psSWTDQys=
-golang.org/x/crypto v0.23.0 h1:dIJU/v2J8Mdglj/8rJ6UUOM3Zc9zLZxVZwwxMooUSAI=
-golang.org/x/crypto v0.23.0/go.mod h1:CKFgDieR+mRhux2Lsu27y0fO304Db0wZe70UKqHu0v8=
-golang.org/x/net v0.25.0 h1:d/OCCoBEUq33pjydKrGQhw7IlUPI2Oylr+8qLx49kac=
-golang.org/x/net v0.25.0/go.mod h1:JkAGAh7GEvH74S6FOH42FLoXpXbE/aqXSrIQjXgsiwM=
-golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.20.0 h1:Od9JTbYCk261bKm4M/mw7AklTlFYIa0bIp9BgSm1S8Y=
-golang.org/x/sys v0.20.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
-golang.org/x/text v0.15.0 h1:h1V/4gjBv8v9cjcR6+AR5+/cIYK5N/WAgiv4xlsEtAk=
-golang.org/x/text v0.15.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
-golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
-golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-google.golang.org/protobuf v1.34.1 h1:9ddQBjfCyZPOHPUiPxpYESBLc+T8P3E+Vo4IbKZgFWg=
-google.golang.org/protobuf v1.34.1/go.mod h1:c6P6GXX6sHbq/GpV6MGZEdwhWPcYBgnhAHhKbcUYpos=
-gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
-gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
-gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
-gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
-nullprogram.com/x/optparse v1.0.0/go.mod h1:KdyPE+Igbe0jQUrVfMqDMeJQIJZEuyV7pjYmp6pbG50=
-rsc.io/pdf v0.1.1/go.mod h1:n8OzWcQ6Sp37PL01nO98y4iUCRdTGarVfzxY20ICaU4=

myproject/chatroom/main.go

-package main
-
-import (
-	"database/sql"
-	"fmt"
-	"log"
-	"net/http"
-	"os"
-	"strconv"
-
-	"github.com/gin-gonic/gin"
-	_ "github.com/lib/pq"
-)
-
-// Helper to get env var or default
-func getEnv(key, fallback string) string {
-	if value, ok := os.LookupEnv(key); ok {
-		return value
-	}
-	return fallback
-}
-
-// Helper to get env var as int or default
-func getEnvAsInt(name string, defaultVal int) int {
-	valueStr := getEnv(name, "")
-	if value, err := strconv.Atoi(valueStr); err == nil {
-		return value
-	}
-	return defaultVal
-}
-
-type Message struct {
-	MessageId int    `json:"message_id"`
-	RoomId    int    `json:"room_id"`
-	Profile   int    `json:"profile"`
-	Sender    string `json:"sender"`
-	Content   string `json:"content"`
-	Time      string `json:"time"`
-}
-
-type RoomPreviewInfo struct {
-	RoomId      int            `json:"roomId"`
-	RoomName    string         `json:"roomName"`
-	LastSender  sql.NullString `json:"lastSender"`
-	LastContent sql.NullString `json:"lastContent"`
-	LastTime    sql.NullTime   `json:"lastTime"`
-}
-
-type Response struct {
-	Code int         `json:"code"`
-	Msg  string      `json:"msg"`
-	Data interface{} `json:"data"`
-}
-
-type RoomAddRes struct {
-	RoomId int `json:"room_id"`
-}
-
-var db *sql.DB
-
-func main() {
-	host := getEnv("DB_HOST", "localhost")
-	port := getEnvAsInt("DB_PORT", 5432)
-	user := getEnv("DB_USER", "chat_room_user")
-	password := getEnv("DB_PASSWORD", "secure_password")
-	dbname := getEnv("DB_NAME", "chat_room_db")
-
-	psqlInfo := fmt.Sprintf("host=%s port=%d user=%s password=%s dbname=%s sslmode=disable",
-		host, port, user, password, dbname)
-
-	var err error
-	db, err = sql.Open("postgres", psqlInfo)
-	if err != nil {
-		log.Fatal(err)
-	}
-	defer db.Close()
-
-	err = db.Ping()
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	createTable()
-	var tableExists bool
-	err = db.QueryRow(`
-		SELECT EXISTS (
-			SELECT 1
-			FROM information_schema.tables
-			WHERE table_name = 'rooms'
-		)
-	`).Scan(&tableExists)
-	if err != nil {
-		log.Fatal("Table check failed: ", err)
-	}
-
-	if !tableExists {
-		log.Println("Table 'rooms' not found, creating...")
-		createTable()
-	} else {
-		log.Println("Table 'rooms' already exists")
-	}
-
-	router := gin.Default()
-	router.Use(func(c *gin.Context) {
-		c.Writer.Header().Set("Access-Control-Allow-Origin", "*")
-		c.Writer.Header().Set("Access-Control-Allow-Methods", "GET, POST, OPTIONS")
-		c.Writer.Header().Set("Access-Control-Allow-Headers", "Content-Type")
-
-		if c.Request.Method == "OPTIONS" {
-			c.AbortWithStatus(204)
-			return
-		}
-
-		c.Next()
-	})
-
-	router.POST("/register", Register)
-	router.POST("/login", Login)
-	router.POST("/room/add", AddNewRoom)
-	router.GET("/room/list", GetRoomList)
-	router.POST("/room/delete", DeleteRoom)
-	router.POST("/room/message/add", AddMessage)
-	router.GET("/room/message/list", GetMessageList)
-	router.PUT("/room/message/update", RoomMessageUpdate)
-	router.PUT("/room/rename", RoomRename)
-	router.Run(":8080")
-}
-
-func Register(c *gin.Context) {
-	userName := c.Query("userName")
-	password := c.Query("password")
-
-	var roomId int
-	err := db.QueryRow(
-		"INSERT INTO users (username, password) VALUES ($1, $2) RETURNING user_id",
-		userName, password,
-	).Scan(&roomId)
-	if err != nil {
-		c.JSON(500, Response{Code: 500, Msg: "注册失败", Data: nil})
-		return
-	}
-
-	log.Printf("New user registered: %s with ID %d", userName, roomId)
-
-	c.JSON(200, Response{Code: 0, Msg: "注册成功", Data: nil})
-}
-
-func Login(c *gin.Context) {
-	userName := c.Query("userName")
-	password := c.Query("password")
-
-	var userId int
-	err := db.QueryRow(
-		"SELECT user_id FROM users WHERE username = $1 AND password = $2",
-		userName, password,
-	).Scan(&userId)
-	if err != nil {
-		c.JSON(401, Response{Code: 401, Msg: "账号或密码错误", Data: nil})
-		return
-	}
-
-	log.Printf("User logged in: %s with ID %d", userName, userId)
-
-	c.JSON(200, Response{Code: 0, Msg: "登录成功", Data: nil})
-}
-
-func AddNewRoom(c *gin.Context) {
-	var room RoomPreviewInfo
-	if err := c.ShouldBindJSON(&room); err != nil {
-		c.JSON(400, Response{Code: 400, Msg: "Invalid input", Data: nil})
-		return
-	}
-	var roomId int
-	err := db.QueryRow(
-		"INSERT INTO rooms (room_name) VALUES ($1) RETURNING room_id",
-		room.RoomName,
-	).Scan(&roomId)
-	if err != nil {
-		c.JSON(500, Response{Code: 500, Msg: "Failed to add room", Data: nil})
-		return
-	}
-
-	room.RoomId = roomId
-	c.JSON(200, RoomAddRes{
-		RoomId: room.RoomId,
-	})
-	log.Printf("New room added: %+v", room)
-}
-
-func GetRoomList(c *gin.Context) {
-	var total int
-	roomCountQuery := "SELECT COUNT(*) FROM rooms"
-	err := db.QueryRow(roomCountQuery).Scan(&total)
-	if err != nil {
-		c.JSON(http.StatusInternalServerError, gin.H{
-			"code": 500,
-			"msg":  "总数统计失败：" + err.Error(),
-		})
-		return
-	}
-
-	query := `
-			SELECT room_id, room_name, last_sender, last_content, last_time
-			FROM rooms
-			ORDER BY last_time DESC NULLS LAST
-			`
-	args := []interface{}{}
-
-	rows, err := db.Query(query, args...)
-	if err != nil {
-		c.JSON(http.StatusInternalServerError, gin.H{
-			"code": 500,
-			"msg":  "Falie while serch:" + err.Error(),
-		})
-		return
-	}
-	defer rows.Close()
-
-	var roomList []RoomPreviewInfo
-	for rows.Next() {
-		var roomItem RoomPreviewInfo
-		if err := rows.Scan(
-			&roomItem.RoomId,
-			&roomItem.RoomName,
-			&roomItem.LastSender,
-			&roomItem.LastContent,
-			&roomItem.LastTime,
-		); err != nil {
-			c.JSON(http.StatusInternalServerError, gin.H{
-				"code": 500,
-				"msg":  "Faile while parsing" + err.Error(),
-			})
-			return
-		}
-		roomList = append(roomList, roomItem)
-	}
-
-	c.JSON(http.StatusOK, Response{
-		Code: 0,
-		Msg:  "Success",
-		Data: roomList,
-	})
-}
-
-func DeleteRoom(c *gin.Context) {
-	roomId := c.Query("roomId")
-	if roomId == "" {
-		c.JSON(400, Response{Code: 400, Msg: "Room ID is required", Data: nil})
-		return
-	}
-
-	_, err := db.Exec("DELETE FROM messages WHERE room_id = $1", roomId)
-	if err != nil {
-		c.JSON(500, Response{Code: 500, Msg: "Failed to delete messages in room: " + err.Error(), Data: nil})
-		return
-	}
-
-	_, err_ := db.Exec("DELETE FROM rooms WHERE room_id = $1", roomId)
-	if err_ != nil {
-		c.JSON(500, Response{Code: 500, Msg: "Failed to delete room: " + err_.Error(), Data: nil})
-		return
-	}
-
-	c.JSON(200, Response{
-		Code: 0,
-		Msg:  "Room deleted successfully",
-		Data: nil,
-	})
-}
-
-func AddMessage(c *gin.Context) {
-	var message struct {
-		RoomId    int    `json:"roomId"`
-		ProfileId int    `json:"profile"`
-		Sender    string `json:"sender"`
-		Content   string `json:"content"`
-	}
-
-	if err := c.ShouldBindJSON(&message); err != nil {
-		c.JSON(http.StatusBadRequest, Response{Code: 400, Msg: "Invalid input: " + err.Error(), Data: nil})
-		return
-	}
-
-	// 写入评论
-	query := `
-		INSERT INTO messages (room_id, profile, sender, content, "time")
-		VALUES ($1, $2, $3, $4, NOW())
-		RETURNING message_id
-	`
-	var messageId int
-	err := db.QueryRow(query, message.RoomId, message.ProfileId, message.Sender, message.Content).Scan(&messageId)
-	if err != nil {
-		c.JSON(http.StatusInternalServerError, Response{Code: 500, Msg: "Failed to add message: " + err.Error(), Data: nil})
-		return
-	}
-
-	// 更新room
-	_, err = db.Exec(
-		"UPDATE rooms SET  last_sender = $1, last_content = $2, last_time = NOW() WHERE room_id = $3",
-		message.Sender, message.Content, message.RoomId,
-	)
-	if err != nil {
-		log.Printf("Failed to update room preview: %v", err)
-		c.JSON(http.StatusInternalServerError, Response{Code: 500, Msg: "Failed to updata lastest message: " + err.Error(), Data: nil})
-		return
-	}
-
-	c.JSON(http.StatusOK, Response{
-		Code: 0,
-		Msg:  "Message added successfully",
-		Data: gin.H{"messageId": messageId},
-	})
-	log.Printf("New message with ID %d added to room %d", messageId, message.RoomId)
-}
-
-func GetMessageList(c *gin.Context) {
-	roomId := c.Query("roomId")
-	if roomId == "" {
-		c.JSON(400, Response{Code: 400, Msg: "Room ID is required", Data: nil})
-		return
-	}
-
-	rows, err := db.Query("SELECT profile, sender, content, time FROM messages WHERE room_id = $1 ORDER BY time ASC", roomId)
-	if err != nil {
-		c.JSON(500, Response{Code: 500, Msg: "Failed to retrieve messages", Data: nil})
-		return
-	}
-	defer rows.Close()
-
-	var messages []Message
-	for rows.Next() {
-		var msg Message
-		if err := rows.Scan(&msg.Profile, &msg.Sender, &msg.Content, &msg.Time); err != nil {
-			c.JSON(500, Response{Code: 500, Msg: "Failed to scan message", Data: nil})
-			return
-		}
-		messages = append(messages, msg)
-	}
-
-	c.JSON(200, Response{
-		Code: 0,
-		Msg:  "Messages retrieved successfully",
-		Data: messages,
-	})
-}
-
-func RoomRename(c *gin.Context) {
-	roomId, err := strconv.Atoi(c.Query("roomId"))
-	if err != nil || roomId <= 0 {
-		c.JSON(http.StatusOK, Response{Code: 400, Msg: "Invalid room ID"})
-		return
-	}
-
-	var newName struct {
-		RoomName string `json:"roomName"`
-	}
-	if err := c.ShouldBindJSON(&newName); err != nil {
-		c.JSON(http.StatusBadRequest, Response{Code: 400, Msg: "Invalid input: " + err.Error(), Data: nil})
-		return
-	}
-
-	_, err = db.Exec("UPDATE rooms SET room_name = $1 WHERE room_id = $2", newName.RoomName, roomId)
-	if err != nil {
-		c.JSON(http.StatusInternalServerError, Response{Code: 500, Msg: "Failed to rename room: " + err.Error(), Data: nil})
-		return
-	}
-
-	c.JSON(http.StatusOK, Response{
-		Code: 0,
-		Msg:  "Room renamed successfully",
-		Data: nil,
-	})
-}
-
-func RoomMessageUpdate(c *gin.Context) {
-	// 处理更新房间消息的逻辑
-}
-
-func createTable() {
-	query := `
-		CREATE TABLE IF NOT EXISTS rooms (
-			room_id SERIAL PRIMARY KEY,
-			room_name VARCHAR(100) NOT NULL UNIQUE,
-			last_sender VARCHAR(100),
-			last_content TEXT,
-			last_time TIMESTAMP
-		);
-
-		CREATE TABLE IF NOT EXISTS messages (
-			message_id SERIAL PRIMARY KEY,
-			room_id INT NOT NULL,
-			profile INT NOT NULL,
-			sender VARCHAR(100) NOT NULL,
-			content TEXT NOT NULL,
-			"time" TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
-			FOREIGN KEY (room_id) REFERENCES rooms(room_id)
-		);
-
-		CREATE TABLE IF NOT EXISTS users (
-			user_id SERIAL PRIMARY KEY,
-			username VARCHAR(100) NOT NULL UNIQUE,
-			password VARCHAR(100) NOT NULL
-		);
-	`
-	_, err := db.Exec(query)
-	if err != nil {
-		log.Fatal("Failed to create tables: ", err)
-	}
-	log.Println("Tables created successfully")
-}

myproject/my-app/.gitignore

-# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
-
-# dependencies
-/node_modules
-/.pnp
-.pnp.*
-.yarn/*
-!.yarn/patches
-!.yarn/plugins
-!.yarn/releases
-!.yarn/versions
-
-# testing
-/coverage
-
-# next.js
-/.next/
-/out/
-
-# production
-/build
-
-# misc
-.DS_Store
-*.pem
-
-# debug
-npm-debug.log*
-yarn-debug.log*
-yarn-error.log*
-.pnpm-debug.log*
-
-# env files (can opt-in for committing if needed)
-.env*
-
-# vercel
-.vercel
-
-# typescript
-*.tsbuildinfo
-next-env.d.ts

myproject/my-app/Dockerfile

-FROM node:18-alpine AS builder
-
-WORKDIR /app
-
-COPY package.json package-lock.json ./
-
-RUN npm ci
-
-COPY . .
-
-RUN npm run build
-
-FROM node:18-alpine AS runner
-
-WORKDIR /app
-
-RUN addgroup -g 1001 -S nodejs
-RUN adduser -S nextjs -u 1001
-
-COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
-COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static
-
-USER nextjs
-
-EXPOSE 3000
-
-ENV PORT 3000
-
-CMD ["node", "server.js"]

myproject/my-app/README.md

-This is a [Next.js](https://nextjs.org) project bootstrapped with [`create-next-app`](https://nextjs.org/docs/app/api-reference/cli/create-next-app).
-
-## Getting Started
-
-First, run the development server:
-
-```bash
-npm run dev
-# or
-yarn dev
-# or
-pnpm dev
-# or
-bun dev
-```
-
-Open [http://localhost:3000](http://localhost:3000) with your browser to see the result.
-
-You can start editing the page by modifying `app/page.tsx`. The page auto-updates as you edit the file.
-
-This project uses [`next/font`](https://nextjs.org/docs/app/building-your-application/optimizing/fonts) to automatically optimize and load [Geist](https://vercel.com/font), a new font family for Vercel.
-
-## Learn More
-
-To learn more about Next.js, take a look at the following resources:
-
-- [Next.js Documentation](https://nextjs.org/docs) - learn about Next.js features and API.
-- [Learn Next.js](https://nextjs.org/learn) - an interactive Next.js tutorial.
-
-You can check out [the Next.js GitHub repository](https://github.com/vercel/next.js) - your feedback and contributions are welcome!
-
-## Deploy on Vercel
-
-The easiest way to deploy your Next.js app is to use the [Vercel Platform](https://vercel.com/new?utm_medium=default-template&filter=next.js&utm_source=create-next-app&utm_campaign=create-next-app-readme) from the creators of Next.js.
-
-Check out our [Next.js deployment documentation](https://nextjs.org/docs/app/building-your-application/deploying) for more details.

myproject/my-app/next.config.ts

-import type { NextConfig } from "next";
-
-const nextConfig: NextConfig = {
-  output: 'standalone',
-};
-
-export default nextConfig;

myproject/my-app/package-lock.json

-{
-  "name": "my-app",
-  "version": "0.1.0",
-  "lockfileVersion": 3,
-  "requires": true,
-  "packages": {
-    "": {
-      "name": "my-app",
-      "version": "0.1.0",
-      "dependencies": {
-        "next": "15.3.3",
-        "react": "^19.0.0",
-        "react-dom": "^19.0.0",
-        "react-icons": "^5.5.0"
-      },
-      "devDependencies": {
-        "@types/node": "^20",
-        "@types/react": "^19",
-        "@types/react-dom": "^19",
-        "typescript": "^5"
-      }
-    },
-    "node_modules/@emnapi/runtime": {
-      "version": "1.4.3",
-      "resolved": "https://registry.npmjs.org/@emnapi/runtime/-/runtime-1.4.3.tgz",
-      "integrity": "sha512-pBPWdu6MLKROBX05wSNKcNb++m5Er+KQ9QkB+WVM+pW2Kx9hoSrVTnu3BdkI5eBLZoKu/J6mW/B6i6bJB2ytXQ==",
-      "license": "MIT",
-      "optional": true,
-      "dependencies": {
-        "tslib": "^2.4.0"
-      }
-    },
-    "node_modules/@img/sharp-darwin-arm64": {
-      "version": "0.34.2",
-      "resolved": "https://registry.npmjs.org/@img/sharp-darwin-arm64/-/sharp-darwin-arm64-0.34.2.tgz",
-      "integrity": "sha512-OfXHZPppddivUJnqyKoi5YVeHRkkNE2zUFT2gbpKxp/JZCFYEYubnMg+gOp6lWfasPrTS+KPosKqdI+ELYVDtg==",
-      "cpu": [
-        "arm64"
-      ],
-      "license": "Apache-2.0",
-      "optional": true,
-      "os": [
-        "darwin"
-      ],
-      "engines": {
-        "node": "^18.17.0 || ^20.3.0 || >=21.0.0"
-      },
-      "funding": {
-        "url": "https://opencollective.com/libvips"
-      },
-      "optionalDependencies": {
-        "@img/sharp-libvips-darwin-arm64": "1.1.0"
-      }
-    },
-    "node_modules/@img/sharp-darwin-x64": {
-      "version": "0.34.2",
-      "resolved": "https://registry.npmjs.org/@img/sharp-darwin-x64/-/sharp-darwin-x64-0.34.2.tgz",
-      "integrity": "sha512-dYvWqmjU9VxqXmjEtjmvHnGqF8GrVjM2Epj9rJ6BUIXvk8slvNDJbhGFvIoXzkDhrJC2jUxNLz/GUjjvSzfw+g==",
-      "cpu": [
-        "x64"
-      ],
-      "license": "Apache-2.0",
-      "optional": true,
-      "os": [
-        "darwin"
-      ],
-      "engines": {
-        "node": "^18.17.0 || ^20.3.0 || >=21.0.0"
-      },
-      "funding": {
-        "url": "https://opencollective.com/libvips"
-      },
-      "optionalDependencies": {
-        "@img/sharp-libvips-darwin-x64": "1.1.0"
-      }
-    },
-    "node_modules/@img/sharp-libvips-darwin-arm64": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/@img/sharp-libvips-darwin-arm64/-/sharp-libvips-darwin-arm64-1.1.0.tgz",
-      "integrity": "sha512-HZ/JUmPwrJSoM4DIQPv/BfNh9yrOA8tlBbqbLz4JZ5uew2+o22Ik+tHQJcih7QJuSa0zo5coHTfD5J8inqj9DA==",
-      "cpu": [
-        "arm64"
-      ],
-      "license": "LGPL-3.0-or-later",
-      "optional": true,
-      "os": [
-        "darwin"
-      ],
-      "funding": {
-        "url": "https://opencollective.com/libvips"
-      }
-    },
-    "node_modules/@img/sharp-libvips-darwin-x64": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/@img/sharp-libvips-darwin-x64/-/sharp-libvips-darwin-x64-1.1.0.tgz",
-      "integrity": "sha512-Xzc2ToEmHN+hfvsl9wja0RlnXEgpKNmftriQp6XzY/RaSfwD9th+MSh0WQKzUreLKKINb3afirxW7A0fz2YWuQ==",
-      "cpu": [
-        "x64"
-      ],
-      "license": "LGPL-3.0-or-later",
-      "optional": true,
-      "os": [
-        "darwin"
-      ],
-      "funding": {
-        "url": "https://opencollective.com/libvips"
-      }
-    },
-    "node_modules/@img/sharp-libvips-linux-arm": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/@img/sharp-libvips-linux-arm/-/sharp-libvips-linux-arm-1.1.0.tgz",
-      "integrity": "sha512-s8BAd0lwUIvYCJyRdFqvsj+BJIpDBSxs6ivrOPm/R7piTs5UIwY5OjXrP2bqXC9/moGsyRa37eYWYCOGVXxVrA==",
-      "cpu": [
-        "arm"
-      ],
-      "license": "LGPL-3.0-or-later",
-      "optional": true,
-      "os": [
-        "linux"
-      ],
-      "funding": {
-        "url": "https://opencollective.com/libvips"
-      }
-    },
-    "node_modules/@img/sharp-libvips-linux-arm64": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/@img/sharp-libvips-linux-arm64/-/sharp-libvips-linux-arm64-1.1.0.tgz",
-      "integrity": "sha512-IVfGJa7gjChDET1dK9SekxFFdflarnUB8PwW8aGwEoF3oAsSDuNUTYS+SKDOyOJxQyDC1aPFMuRYLoDInyV9Ew==",
-      "cpu": [
-        "arm64"
-      ],
-      "license": "LGPL-3.0-or-later",
-      "optional": true,
-      "os": [
-        "linux"
-      ],
-      "funding": {
-        "url": "https://opencollective.com/libvips"
-      }
-    },
-    "node_modules/@img/sharp-libvips-linux-ppc64": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/@img/sharp-libvips-linux-ppc64/-/sharp-libvips-linux-ppc64-1.1.0.tgz",
-      "integrity": "sha512-tiXxFZFbhnkWE2LA8oQj7KYR+bWBkiV2nilRldT7bqoEZ4HiDOcePr9wVDAZPi/Id5fT1oY9iGnDq20cwUz8lQ==",
-      "cpu": [
-        "ppc64"
-      ],
-      "license": "LGPL-3.0-or-later",
-      "optional": true,
-      "os": [
-        "linux"
-      ],
-      "funding": {
-        "url": "https://opencollective.com/libvips"
-      }
-    },
-    "node_modules/@img/sharp-libvips-linux-s390x": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/@img/sharp-libvips-linux-s390x/-/sharp-libvips-linux-s390x-1.1.0.tgz",
-      "integrity": "sha512-xukSwvhguw7COyzvmjydRb3x/09+21HykyapcZchiCUkTThEQEOMtBj9UhkaBRLuBrgLFzQ2wbxdeCCJW/jgJA==",
-      "cpu": [
-        "s390x"
-      ],
-      "license": "LGPL-3.0-or-later",
-      "optional": true,
-      "os": [
-        "linux"
-      ],
-      "funding": {
-        "url": "https://opencollective.com/libvips"
-      }
-    },
-    "node_modules/@img/sharp-libvips-linux-x64": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/@img/sharp-libvips-linux-x64/-/sharp-libvips-linux-x64-1.1.0.tgz",
-      "integrity": "sha512-yRj2+reB8iMg9W5sULM3S74jVS7zqSzHG3Ol/twnAAkAhnGQnpjj6e4ayUz7V+FpKypwgs82xbRdYtchTTUB+Q==",
-      "cpu": [
-        "x64"
-      ],
-      "license": "LGPL-3.0-or-later",
-      "optional": true,
-      "os": [
-        "linux"
-      ],
-      "funding": {
-        "url": "https://opencollective.com/libvips"
-      }
-    },
-    "node_modules/@img/sharp-libvips-linuxmusl-arm64": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/@img/sharp-libvips-linuxmusl-arm64/-/sharp-libvips-linuxmusl-arm64-1.1.0.tgz",
-      "integrity": "sha512-jYZdG+whg0MDK+q2COKbYidaqW/WTz0cc1E+tMAusiDygrM4ypmSCjOJPmFTvHHJ8j/6cAGyeDWZOsK06tP33w==",
-      "cpu": [
-        "arm64"
-      ],
-      "license": "LGPL-3.0-or-later",
-      "optional": true,
-      "os": [
-        "linux"
-      ],
-      "funding": {
-        "url": "https://opencollective.com/libvips"
-      }
-    },
-    "node_modules/@img/sharp-libvips-linuxmusl-x64": {
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myproject/my-app/package.json

-{
-  "name": "my-app",
-  "version": "0.1.0",
-  "private": true,
-  "scripts": {
-    "dev": "next dev",
-    "build": "next build",
-    "start": "next start",
-    "lint": "next lint"
-  },
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-    "react": "^19.0.0",
-    "react-dom": "^19.0.0",
-    "react-icons": "^5.5.0"
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-  "devDependencies": {
-    "@types/node": "^20",
-    "@types/react": "^19",
-    "@types/react-dom": "^19",
-    "typescript": "^5"
-  }
-}

myproject/my-app/src/app/ChatRoom/ChatRoom.module.css

-.chat-room {
-    display: flex;
-    position: fixed;
-    width: 100vw;
-    height: 100vh;
-    box-sizing: border-box;
-    overflow: hidden;
-}
-
-.chat-room-nav {
-    position: fixed;
-    padding: 10px;
-    width: 15%;
-    height: 100%;
-    background-color: #f5f5f5;
-    border-bottom: 1px solid #ddd;
-    z-index: 10;
-}
-
-.open {
-    display: flex;
-    position: fixed;
-    width: 100vw;
-    height: 100vh;
-    box-sizing: border-box;
-    overflow: hidden;
-    background-color: rgba(255, 255, 255, 0.75);
-    z-index: 0;
-}
-
-.open .roomName-input {
-    background-color: #fff;
-    display: flex;
-    flex-direction: column;
-    position: fixed;
-    top: 40%;
-    left: 30%;
-    z-index: 0;
-    width: 40%;
-    height: 25%;
-    border-radius: 20px;
-    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-
-    h3 {
-        align-items: center;
-        text-align: center;
-    }
-
-    input {
-        width: 80%;
-        height: 20px;
-        margin: 20px auto;
-        padding: 10px;
-        border-radius: 20px;
-        border: 1px solid #ccc;
-        font-size: 16px;
-    }
-
-    .button-container {
-        display: flex;
-        justify-content: center;
-        margin-top: -5px;
-
-        button {
-            width: 100px;
-            height: 40px;
-            background-color: #007bff;
-            color: white;
-            border: none;
-            border-radius: 20px;
-            cursor: pointer;
-            display: flex;
-            align-items: center;
-            justify-content: center;
-
-            margin-left: 10px;
-            margin-right: 10px;
-
-            &:hover {
-                background-color: #0056b3;
-            }
-        }
-    }
-}
-
-.chat-room-nav .chat-list {
-    display: flex;
-    flex-direction: column;
-    height: 100%;
-    overflow-y: auto;
-    padding: 10px;
-    box-sizing: border-box;
-    z-index: 1;
-
-    .chat-item {
-        display: flex;
-        position: relative;
-        align-items: center;
-        padding: 10px;
-        margin-bottom: 10px;
-        border-radius: 8px;
-        cursor: pointer;
-        border: 1px solid #ddd;
-
-        &:hover {
-            background-color: #e0e0e0;
-        }
-
-        .avatar {
-            width: 40px;
-            height: 40px;
-            border-radius: 50%;
-            margin-right: 10px;
-        }
-
-        .chat-info {
-            height: 40px;
-            flex-grow: 1;
-            right: 0;
-            width: 80%;
-
-            h3 {
-                margin: 0;
-                margin-left: 5px;
-                font-size: 1.2em;
-                color: #333;
-                white-space: nowrap;
-                overflow: hidden;
-                text-overflow: ellipsis;
-            }
-
-            .chat-message {
-                position: relative;
-                margin-bottom: 10px;
-                margin-left: 5px;
-                max-width:100px;
-                font-weight: bold;
-                color: #333;
-                max-height: 20px;
-                white-space: nowrap;
-                overflow: hidden;
-                text-overflow: ellipsis;
-                display: inline-block;
-            }
-
-            .chat-time {
-                position: absolute;
-                color: #666;
-                font-size: 0.9em;
-                right: 5px;
-                bottom: 10px;
-            }
-        }
-
-        .chat-room-menu {
-            position: absolute;
-            right: 10px;
-            top: 10px;
-            width: 20px;
-            background-color: white;
-            border: 1px solid #ddd;
-            border-radius: 5px;
-            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
-            z-index: 100;
-            text-align: center;
-            cursor: pointer;
-        }
-
-        /* Dropdown menu for actions */
-        .menu-dropdown {
-            position: absolute;
-            right: 6px;
-            top: 36px;
-            min-width: 160px;
-            background: #ffffff;
-            border: 1px solid #e5e7eb;
-            border-radius: 8px;
-            box-shadow: 0 8px 24px rgba(0,0,0,0.12);
-            padding: 6px 0;
-            display: none;
-        }
-
-        .menu-open {
-            display: block;
-        }
-
-        .menu-item {
-            width: 100%;
-            background: transparent;
-            border: none;
-            text-align: left;
-            padding: 10px 12px;
-            font-size: 14px;
-            color: #111827;
-            cursor: pointer;
-        }
-
-        .menu-item:hover {
-            background: #f3f4f6;
-        }
-    }
-}
-
-.message-item {
-    position: relative;
-    left: 15%;
-    width: 85%;
-    height: 100vh;
-    display: flex;
-    flex-direction: column;
-    box-sizing: border-box;
-    background-color: #f0f0f0;
-    background-size: cover;
-    z-index: 2;
-
-    .message-header {
-        z-index: 5; 
-        width: 100%;
-        position: sticky;
-        top: 0;
-        background-color: #fff;
-        height: 70px;
-        display: flex;
-        align-items: center;
-
-        .avatar {
-            width: 40px;
-            height: 40px;
-            border-radius: 50%;
-            margin-left: 40px;
-        }
-        
-        h2 {
-            width: 10%;
-            color: #333;
-            text-align: center;
-            margin: 0;
-            padding: 0;
-        }
-
-        border-bottom: 1px solid #000000;
-    }
-
-    .message-list {
-        flex: 1; 
-        overflow-y: auto;
-        padding: 10px;
-        box-sizing: border-box;
-        z-index: 3;
-        
-        .message {
-            display: flex;
-            max-width: 80%;
-            padding: 10px;
-            margin-bottom: 15px;
-            margin-left: 15px;;
-            border-radius: 15px;
-            overflow-wrap: break-word;
-            
-            .avatar {
-                width: 40px;
-                height: 40px;
-                border-radius: 50%;
-                margin-right: 10px;
-                flex-shrink: 0;
-            }
-            
-            .message-content {
-                min-width: 0;
-                
-                .message-info {
-                    height: auto;
-
-                    .message-sender {
-                    font-weight: bold;
-                    color: #333;
-                    margin-right: 8px;
-                    }
-
-                    .message-time {
-                    font-size: 0.8em;
-                    color: #999;
-                    }
-
-                }
-                
-                .message-text {
-                    padding: 8px 12px;
-                    margin: 5px 0;
-                    border-radius: 10px;
-                    color: #555;
-                    background-color: #f5f5f5;
-                    display: block;
-                    word-break: break-word;
-                }
-            }
-        }
-    }
-
-    .message-input {
-        position: sticky;
-        bottom: 0;
-        width: 90%;
-        padding: 15px;
-        box-sizing: border-box;
-        z-index: 4;
-        display: flex;
-        margin-left: 5%;
-
-        input {
-            flex: 1;
-            padding: 12px 15px;
-            border-radius: 25px;
-            font-size: 16px;
-            margin-right: 10px;
-            background-color: transparent;
-        }
-
-        input:hover {
-            border: #000000 1px solid;
-        }
-    }
-}
-
-/* From Uiverse.io by njesenberger */ 
-.button {
-    -webkit-appearance: none;
-    appearance: none;
-    position: relative;
-    border-width: 0;
-    padding: 0 8px 12px;
-    min-width: 10em;
-    box-sizing: border-box;
-    background: transparent;
-    font: inherit;
-    cursor: pointer;
-}
-
-.button-top {
-    display: flex;
-    align-items: center;
-    justify-content: center;
-    position: relative;
-    z-index: 0;
-    padding: 8px 16px;
-    transform: translateY(0);
-    text-align: center;
-    color: #fff;
-    text-shadow: 0 -1px rgba(0, 0, 0, .25);
-    transition-property: transform;
-    transition-duration: .2s;
-    -webkit-user-select: none;
-    user-select: none;
-}
-
-.button:active .button-top {
-    transform: translateY(6px);
-}
-
-.button-top::after {
-    content: '';
-    position: absolute;
-    z-index: -1;
-    border-radius: 4px;
-    width: 100%;
-    height: 100%;
-    box-sizing: content-box;
-    background-image: radial-gradient(#cd3f64, #9d3656);
-    text-align: center;
-    color: #fff;
-    box-shadow: inset 0 0 0px 1px rgba(255, 255, 255, .2), 0 1px 2px 1px rgba(255, 255, 255, .2);
-    transition-property: border-radius, padding, width, transform;
-    transition-duration: .2s;
-}
-
-.button:active .button-top::after {
-    border-radius: 6px;
-    padding: 0 2px;
-}
-
-.button-bottom {
-    position: absolute;
-    z-index: -1;
-    bottom: 4px;
-    left: 4px;
-    border-radius: 8px / 16px 16px 8px 8px;
-    padding-top: 6px;
-    width: calc(100% - 8px);
-    height: calc(100% - 10px);
-    box-sizing: content-box;
-    background-color: #803;
-    background-image: radial-gradient(4px 8px at 4px calc(100% - 8px), rgba(255, 255, 255, .25), transparent), radial-gradient(4px 8px at calc(100% - 4px) calc(100% - 8px), rgba(255, 255, 255, .25), transparent), radial-gradient(16px at -4px 0, white, transparent), radial-gradient(16px at calc(100% + 4px) 0, white, transparent);
-    box-shadow: 0px 2px 3px 0px rgba(0, 0, 0, 0.5), inset 0 -1px 3px 3px rgba(0, 0, 0, .4);
-    transition-property: border-radius, padding-top;
-    transition-duration: .2s;
-}
-
-.button:active .button-bottom {
-    border-radius: 10px 10px 8px 8px / 8px;
-    padding-top: 0;
-}
-
-.button-base {
-    position: absolute;
-    z-index: -2;
-    top: 4px;
-    left: 0;
-    border-radius: 12px;
-    width: 100%;
-    height: calc(100% - 4px);
-    background-color: rgba(0, 0, 0, .15);
-    box-shadow: 0 1px 1px 0 rgba(255, 255, 255, .75), inset 0 2px 2px rgba(0, 0, 0, .25);
-}
-
-.message-item {
-    /* From Uiverse.io by adamgiebl */ 
-    button {
-        font-family: inherit;
-        font-size: 20px;
-        background: transparent;
-        color: white;
-        padding: 0.7em 1em;
-        padding-left: 0.9em;
-        display: flex;
-        align-items: center;
-        border: none;
-        border-radius: 16px;
-        overflow: hidden;
-        transition: all 0.2s;
-        cursor: pointer;
-    }
-
-    button span {
-        display: block;
-        margin-left: 0.3em;
-        transition: all 0.3s ease-in-out;
-    }
-
-    button svg {
-        display: block;
-        transform-origin: center center;
-        transition: transform 0.3s ease-in-out;
-    }
-
-    button:hover .svg-wrapper {
-        animation: fly-1 0.6s ease-in-out infinite alternate;
-    }
-
-    button:hover svg {
-        transform: translateX(1.2em) rotate(45deg) scale(1.1);
-    }
-
-    button:hover span {
-        transform: translateX(5em);
-    }
-
-    button:active {
-        transform: scale(0.95);
-    }
-
-    @keyframes fly-1 {
-        from {
-            transform: translateY(0.1em);
-        }
-
-        to {
-            transform: translateY(-0.1em);
-        }
-    }
-}
\ No newline at end of file

myproject/my-app/src/app/ChatRoom/page.tsx

-'use client';
-
-import styles from "./ChatRoom.module.css";
-import React, { useEffect, useState } from "react";
-import { useRouter } from 'next/navigation';
-
-const backEnd:string = "http://localhost:8080";
-
-const Profile = [ 'https://pic4.zhimg.com/v2-c5a0d0d57c1a85c6db56e918707f54a3_r.jpg',
-                  'https://pic2.zhimg.com/v2-c2e79191533fdc7fced2f658eef987c9_r.jpg',
-                  'https://pic4.zhimg.com/v2-bf5f58e7b583cd69ac228db9fdff377f_r.jpg',
-                  'https://pic1.zhimg.com/v2-10e9368af9eb405c8844584ad3ad9dd8_r.jpg',
-                  'https://picx.zhimg.com/50/v2-63e3500bfd25b6ae7013a6a3b6ce045b_720w.jpg',
-                  'https://c-ssl.duitang.com/uploads/blog/202109/20/20210920000906_53764.png']
-
-const RoomProfile = 'https://tse1-mm.cn.bing.net/th/id/OIP-C.0KyBJKAdIGi9SAQc_X62tQHaLr?cb=thvnextc2&rs=1&pid=ImgDetMain';
-
-interface RoomEntryProps {
-    roomId: number;
-    roomName: string;
-    lastSender: { String: string, Valid: boolean };
-    lastContent: { String: string, Valid: boolean };
-    lastTime: { Time: string, Valid: boolean };
-}
-
-interface MessageProps {
-    roomId: number;
-    roomName: string;
-    messages: Array<{
-        profile: number;
-        sender: string;
-        content: string;
-        time: string;
-    }>;
-}
-
-function RoomEntry ({rooms, onRoomClick, onRename, onDelete} : {rooms: RoomEntryProps[], onRoomClick: (roomId: number, roomName: string) => void, onRename: (roomId: number, currentName: string) => void, onDelete: (roomId: number) => void}) {
-  const [openMenuFor, setOpenMenuFor] = useState<number | null>(null);
-
-  useEffect(() => {
-    const handleClickOutside = (e: MouseEvent) => {
-      const target = e.target as HTMLElement;
-      if (!target.closest('[data-menu="room-actions"]')) {
-        setOpenMenuFor(null);
-      }
-    };
-    document.addEventListener('click', handleClickOutside);
-    return () => document.removeEventListener('click', handleClickOutside);
-  }, []);
-
-  return (
-    <div className={styles["chat-room-nav"]}>
-      <div className={styles["sidebar-action"]}>
-        <button type="button" className={styles["button"]} onClick={openOpenDiv}>
-          <div className={styles["button-top"]}>New Chat</div>
-          <div className={styles["button-bottom"]}></div>
-          <div className={styles["button-base"]}></div>
-        </button>
-      </div>
-
-      <div className={styles["chat-list"]}>
-        {rooms.map((room) => (
-          <div className={styles["chat-item"]} key={room.roomId}>
-            <img src={RoomProfile} alt="Avatar" className={styles["avatar"]} />
-            <div className={styles["chat-info"]}>
-              <h3 onClick={() => onRoomClick(room.roomId, room.roomName)}>{room.roomName}</h3>
-              <span className={styles["chat-message"]}>
-                {room.lastSender.Valid ? room.lastSender.String : ''}:
-                {room.lastContent.Valid ? room.lastContent.String : ''}</span>
-              <span className={styles["chat-time"]}>{room.lastTime.Valid ? formatTimeToHoursMinutes(room.lastTime.Time) : ''}</span>
-            </div>
-            <div
-              className={styles["chat-room-menu"]}
-              data-menu="room-actions"
-              onClick={(e) => {
-                e.stopPropagation();
-                setOpenMenuFor(prev => (prev === room.roomId ? null : room.roomId));
-              }}
-              aria-label="Room actions"
-              title="Room actions"
-            >
-              ···
-              <div className={`${styles["menu-dropdown"]} ${openMenuFor === room.roomId ? styles["menu-open"] : ''}`}>
-                <button
-                  className={styles["menu-item"]}
-                  onClick={(e) => { e.stopPropagation(); setOpenMenuFor(null); onRename(room.roomId, room.roomName); }}
-                >
-                  Rename room
-                </button>
-                <button
-                  className={styles["menu-item"]}
-                  onClick={(e) => { e.stopPropagation(); setOpenMenuFor(null); onDelete(room.roomId); }}
-                >
-                  Delete room
-                </button>
-              </div>
-            </div>
-          </div> 
-        ))}
-      </div>
-    </div>
-  ); 
-  // Button From Uiverse.io by njesenberger
-}
-
-function formatTimeToHoursMinutes(isoString: string) {
-  const date = new Date(isoString);
-  const hours = String(date.getHours()).padStart(2, '0');
-  const minutes = String(date.getMinutes()).padStart(2, '0');
-  return `${hours}:${minutes}`;
-}
-
-function InputRoomNameArea({ onAddNewRoom }: { onAddNewRoom: (roomName: string) => void}) {
-  const [roomNameInput, setRoomNameInput] = useState("");
-
-  const handleAddNewRoom = () => {
-    onAddNewRoom(roomNameInput);
-    setRoomNameInput("");
-    closeOpenDiv();
-  }
-  return (
-    <div className={styles["open"]}>
-      <div className={styles["roomName-input"]}>
-        <h3>Please Enter the New Room Name</h3>
-        <input
-          type="text"
-          className={styles["RoomNameInput"]}
-          placeholder="Start new chat"
-          value = {roomNameInput}
-          onChange={(e) => setRoomNameInput(e.target.value)}
-          onKeyUpCapture={(e: React.KeyboardEvent<HTMLInputElement>) => {
-            if (e.key === 'Enter') {
-              handleAddNewRoom();
-            }
-            else if (e.key === 'Escape') {
-              closeOpenDiv();
-            }
-          }}
-        />
-        <div className={styles["button-container"]}>
-          <button className={styles["create-button"]} onClick={handleAddNewRoom}>Submit</button>
-          <button className={styles["cancel-button"]} onClick={closeOpenDiv}>Cancel</button>
-        </div>
-      </div>
-    </div>
-  );
-}
-
-function openOpenDiv() {
-  const openDiv = document.getElementsByClassName(styles.open)[0] as HTMLDivElement | undefined;
-  if (openDiv) {
-    openDiv.style.zIndex = "1000";
-  }
-  const roomNameInput = document.getElementsByClassName(styles.RoomNameInput)[0] as HTMLInputElement | undefined;
-  if (roomNameInput) {
-    roomNameInput.style.zIndex = "1001";
-  }
-}
-
-function closeOpenDiv() {
-  const openDiv = document.getElementsByClassName(styles.open)[0] as HTMLDivElement | undefined;
-  if (openDiv) {
-    openDiv.style.zIndex = "0";
-  }
-  const roomNameInput = document.getElementsByClassName(styles.RoomNameInput)[0] as HTMLInputElement | undefined;
-  if (roomNameInput) {
-    roomNameInput.style.zIndex = "0";
-    roomNameInput.value = '';
-  }
-}
-
-function MessageItem (props: MessageProps & { onAddNewComment: (content: string) => void}) {
-  const [inputValue, setInputValue] = useState("");
-
-  if (props.roomId === 0) {
-    return <div className={styles["message-item"]}>Please select a room to chat.</div>;
-  }
-
-  const handlerSend = () => {
-    if (inputValue.trim() === '') {
-      alert("Message can't be empty");
-      return
-    }
-    props.onAddNewComment(inputValue);
-    setInputValue('');
-  }
-  return (
-    <div className={styles["message-item"]}>
-      <div className={styles["message-header"]}>
-        <img src={RoomProfile} alt="Avatar" className={styles["avatar"]} />
-        <h2>{props.roomName}</h2>
-      </div>
-      <div className={styles["message-list"]}>
-        {props.messages.map((msg, index) => (
-          <div key={index} className={styles["message"]}>
-            <img src={Profile[msg.profile]} alt={`${msg.sender}'s avatar`} className={styles["avatar"]} />
-            <div className={styles["message-content"]}>
-              <div className={styles["message-info"]}>
-                <span className={styles["message-sender"]}>{msg.sender}</span>
-                <span className={styles["message-time"]}>{formatTimeToHoursMinutes(msg.time)}</span>
-              </div>
-              <p className={styles["message-text"]}>{msg.content}</p>
-            </div>
-          </div>
-        ))}
-      </div>
-      <div className={styles["message-input"]}>
-        <input
-          type="text"
-          placeholder="Type a message..."
-          className={styles["Inputarea"]}
-          value={inputValue}
-        onChange={(e) => setInputValue(e.target.value)}
-        onKeyUpCapture={
-          (e: React.KeyboardEvent<HTMLInputElement>) => {
-            if (e.key === 'Enter') {
-              handlerSend();
-            }
-        }}/>
-        <button className={styles["send-button"]} onClick={handlerSend}>
-          <div className={styles["svg-wrapper-1"]}>
-            <div className={styles["svg-wrapper"]}>
-              <svg
-                xmlns="http://www.w3.org/2000/svg"
-                viewBox="0 0 24 24"
-                width="24"
-                height="24"
-              >
-                <path fill="none" d="M0 0h24v24H0z"></path>
-                <path
-                  fill="currentColor"
-                  d="M1.946 9.315c-.522-.174-.527-.455.01-.634l19.087-6.362c.529-.176.832.12.684.638l-5.454 19.086c-.15.529-.455.547-.679.045L12 14l6-8-8 6-8.054-2.685z"
-                ></path>
-              </svg>
-            </div>
-          </div>
-          <span>Send</span>
-        </button>
-      </div>
-    </div>
-  );
-  // From Uiverse.io by adamgiebl
-}
-
-function ChatRoomComponent({ userName }: { userName: string }) {
-  const [rooms, setRooms] = useState<RoomEntryProps[]>([]);
-  const [currentRoom, setCurrentRoom] = useState<MessageProps | null>(null);
-  
-  const ROOM_LIST_REFRESH_INTERVAL = 1000;
-  const MESSAGE_REFRESH_INTERVAL = 1000;
-
-  const fetchRooms = async () => {
-    try {
-      const response = await fetch(backEnd+"/room/list");
-      const result = await response.json();
-    if (result.code === 0) {
-      const ferchedRooms = result.data.map((room:any) => ({
-        ...room,
-        lastSender: room.lastSender || { String: '', Valid: false },
-        laseComment: room.lastComment || { String: '', Valid: false },
-        lastTime: room.lastTime || { String: '', Valid: false }
-      }));
-      setRooms(ferchedRooms);
-    }
-    } catch (error) {
-      console.error("Error fetching rooms:", error);
-    }
-  };
-
-  const fetchCurrentRoomMessages = async (roomId: number) => {
-    if (!roomId) return;
-    
-    try {
-      const response = await fetch(backEnd+`/room/message/list?roomId=${roomId}`);
-      const result = await response.json();
-      
-      if (result.code === 0) {
-        setCurrentRoom(prev => {
-          if (!prev || prev.roomId !== roomId) return prev;
-          return {
-            ...prev,
-            messages: result.data || []
-          };
-        });
-      }
-    } catch (error) {
-      console.error("Error fetching messages:", error);
-    }
-  };
-
-  useEffect(() => {
-    fetchRooms();
-    
-    const roomListInterval = setInterval(() => {
-      fetchRooms();
-    }, ROOM_LIST_REFRESH_INTERVAL);
-
-    return () => clearInterval(roomListInterval);
-  }, []);
-
-  useEffect(() => {
-    if (!currentRoom?.roomId) return;
-
-    const messageInterval = setInterval(() => {
-      fetchCurrentRoomMessages(currentRoom.roomId);
-    }, MESSAGE_REFRESH_INTERVAL);
-
-    return () => clearInterval(messageInterval);
-  }, [currentRoom?.roomId]);
-
-  const handleRoomClick = async (roomId: number, roomName: string) => {
-    setCurrentRoom({
-      roomId: roomId,
-      roomName: roomName,
-      messages: []
-    });
-
-    await fetchCurrentRoomMessages(roomId);
-  }
-
-  async function addNewRoom(roomName: string) {
-    if (roomName.trim() === "") {
-      alert("Please enter a room name.");
-      return;
-    }
-
-    try {
-      const response = await fetch (backEnd + "/room/add", {
-        method: 'POST',
-        headers: { 'Content-Type': 'application/json' },
-        body: JSON.stringify({ roomName: roomName })
-      })
-
-      const result = await response.json();
-      
-      if (result.room_id > 0) {
-        const newRoom:RoomEntryProps = {
-          roomId: result.RoomId,
-          roomName: roomName,
-          lastSender: { String: '', Valid: false } ,
-          lastContent: { String: '', Valid: false },
-          lastTime: { Time: '', Valid: false },
-        };
-        setRooms(prevRooms => [newRoom, ...prevRooms]);
-      } else {
-        alert("Faile to add a new room" + result.Msg);
-      }
-    } catch (error) {
-        console.error("Error adding new room" + error);
-        alert("Error adding new room.");
-    }
-  }
-
-  const addNewComment = async (content: string) => {
-    if (!currentRoom) 
-      return;
-
-    let profileId = 0;
-    if (userName === '蔡徐坤') {
-      profileId = Profile.length - 1;
-    } else {
-      profileId = Math.floor(Math.random() * (Profile.length-1));
-    }
-
-    try {
-      const response = await fetch(backEnd + '/room/message/add', {
-        method: 'POST',
-        headers: {'Content-Type': 'application/json'},
-        body: JSON.stringify({
-          roomId: currentRoom.roomId,
-          profile_id: profileId,
-          sender: userName,
-          content
-        })
-      })
-
-      const result = await response.json();
-      debugger;
-      if (result.code != 0) {
-        alert(`Error: ${result.Msg}`);
-        return;
-      }
-      
-      const newMessage: { profile: number, sender: string, content: string, time: string } = {
-          profile: profileId,
-          sender: userName,
-          content: content,
-          time: new Date().toISOString()
-      };
-
-      setCurrentRoom(prevRoom => {
-          if (!prevRoom) return null;
-          return {
-              ...prevRoom,
-              messages: [...prevRoom.messages, newMessage]
-          };
-      });
-
-    } catch (error) {
-      console.error("Error in addNewComment:", error);
-      alert("An error occurred while sending the message.");
-    }
-  }
-
-  const handleRename = async (roomId: number, currentName: string) => {
-    const newName = prompt('Enter new room name', currentName);
-    if (!newName || newName.trim() === '' || newName === currentName) return;
-    try {
-      const response = await fetch(backEnd + '/room/rename', {
-        method: 'POST',
-        headers: { 'Content-Type': 'application/json' },
-        body: JSON.stringify({ roomId, roomName: newName })
-      });
-      const result = await response.json();
-      if (result.code !== 0) {
-        alert('Rename failed: ' + (result.msg || 'unknown error'));
-        return;
-      }
-      setRooms(prev => prev.map(r => r.roomId === roomId ? { ...r, roomName: newName } : r));
-      setCurrentRoom(prev => prev && prev.roomId === roomId ? { ...prev, roomName: newName } : prev);
-    } catch (err) {
-      console.error('Rename error', err);
-      alert('Rename error');
-    }
-  };
-
-  const handleDelete = async (roomId: number) => {
-    if (!confirm('Delete this room? This cannot be undone.')) return;
-    try {
-      const response = await fetch(backEnd + '/room/delete?roomId=' + roomId, {
-        method: 'POST',
-        headers: { 'Content-Type': 'application/json' },
-      });
-      const result = await response.json();
-      if (result.code !== 0) {
-        alert('Delete failed: ' + (result.msg || 'unknown error'));
-        return;
-      }
-      setRooms(prev => prev.filter(r => r.roomId !== roomId));
-      setCurrentRoom(prev => (prev && prev.roomId === roomId) ? null : prev);
-    } catch (err) {
-      console.error('Delete error', err);
-      alert('Delete error');
-    }
-  };
-
-  return (
-      <div className={styles["chat-room"]}>
-        <RoomEntry rooms={rooms} onRoomClick={handleRoomClick} onRename={handleRename} onDelete={handleDelete}/>
-        <MessageItem 
-            roomId={currentRoom?.roomId || 0}
-            roomName={currentRoom?.roomName || ""}
-            messages={currentRoom?.messages || []}
-            onAddNewComment={addNewComment}
-        />
-        <InputRoomNameArea onAddNewRoom={addNewRoom}/>
-      </div>
-  );
-}
-
-export default function ChatRoom() {
-    const [userName, setUserName] = useState<string | null>(null);
-    const router = useRouter();
-
-    useEffect(() => {
-        const storedUserName = localStorage.getItem('userName');
-        if (storedUserName) {
-            setUserName(storedUserName);
-        } else {
-            router.push('/');
-        }
-    }, [router]);
-
-    if (!userName) {
-        return <div>Loading...</div>;
-    }
-
-    return <ChatRoomComponent userName={userName} />;
-}
\ No newline at end of file

myproject/my-app/src/app/Register/Register.module.css

-/*
-{
-    margin: 0;
-    padding: 0;
-    box-sizing: border-box;
-    font-family: 'Poppins', sans-serif;
-} */
-
-.SetName-Body
-{
-    z-index: 2000;
-    display: flex;
-    position: absolute;
-    justify-content: center;
-    align-items: center;
-    min-height: 100vh;
-    width: 100vw;
-    background-size: cover;
-    background-color: grey;
-}
-
-.login-box
-{
-    position: relative;
-    width: 400px;
-    height: 450px;
-    background-color: transparent;
-    border: 2px solid rgba(255, 255 , 255, .5);
-    border-radius: 20px;
-    display: flex;
-    justify-content: center;
-    align-items: center;
-    backdrop-filter: blur(15px);
-}
-
-.setname-h2
-{
-    font-size: 2em;
-    color: white;
-    text-align: center;
-}
-
-.input-box
-{
-    position: relative;
-    width: 310px;
-    margin: 30px 0;
-    border-bottom: 2px solid white;
-}
-
-.input-box label
-{
-    position: absolute;
-    top: 50%;
-    left: 5px;
-    transform: translateY(-50%);
-    font-size: 1em;
-    color: white;
-    pointer-events: none;
-    transition: .5s;
-}
-
-.input-box input:focus~label,
-.input-box input:valid~label
-{
-    top: -5px;
-}
-
-.input-box input
-{
-    width: 100%;
-    height: 50px;
-    border: none;
-    outline: none;
-    background-color: transparent;
-    color: black;
-    font-size: 1em;
-    padding: 0 35px 0 5px;
-}
-
-.input-box .icon
-{
-    position: absolute;
-    right: 8px;
-    color: white;
-    font-size: .9em;
-    line-height: 57px;
-}
-
-.SetName-button
-{
-    outline: none;
-    border: none;
-    width: 100%;
-    height: 50px;
-    background-color: white;
-    border-radius: 40px;
-    cursor: pointer;
-    color: black;
-    font-size: 1em;
-    font-weight: bold;
-}
-
-.SetName-button:hover
-{
-    background-color: lightgray;
-}
-
-.setname-repeat
-{
-    font-size: .9em;
-    color: white;
-    margin: 20px 0 10px 0;
-}
\ No newline at end of file

myproject/my-app/src/app/Register/page.tsx

-'use client';
-
-import styles from"./Register.module.css"
-import { MdLock, MdPerson } from "react-icons/md";
-import { useState } from "react";
-import { useRouter } from 'next/navigation';
-
-const backEnd:string = "http://localhost:8080";
-
-export default function Register() {
-    const [userName, setUserName] = useState('');
-    const [password, setPassword] = useState('');
-    const [confirmPassword, setConfirmPassword] = useState('');
-    const [passwordError, setPasswordError] = useState('');
-    const router = useRouter();
-
-    const handleSubmit = async (e: React.FormEvent) => {
-        e.preventDefault();
-
-        setPasswordError('');
-
-        if (password !== confirmPassword) {
-            setPasswordError('Passwords do not match');
-            return;
-        }
-
-        if (password.length < 6) {
-            setPasswordError('Password must be at least 6 characters');
-            return;
-        }
-
-        try {
-            const response = await fetch(backEnd + '/register', {
-                method: 'POST',
-                headers: {
-                    'Content-Type': 'application/json',
-                },
-                body: JSON.stringify({ userName, password }),
-            });
-
-            if (!response.ok) {
-                throw new Error('Failed to register');
-            }
-
-            alert('Registration successful! Redirecting to login page.');
-            router.push('/SetName');
-        } catch (error) {
-            console.error(error);
-            setPasswordError('Registration failed. Please try again.');
-        }
-    }
-    return (
-        <div className={styles["SetName-Body"]}>
-            <div className={styles["login-box"]}>
-                <form onSubmit={handleSubmit}>
-                    <h2 className={styles["setname-h2"]}>Register</h2>
-                    <div className={styles["input-box"]}>
-                        <span className={styles["icon"]}>
-                            <MdPerson />
-                        </span>
-                        <input
-                            required
-                            value={userName}
-                            onChange={(e) => setUserName(e.target.value)} />
-                        <label>Name</label>
-                    </div>
-                    <div className={styles["input-box"]}>
-                        <span className={styles["icon"]}>
-                            <MdLock />
-                        </span>
-                        <input
-                            type="password"
-                            required
-                            value={password}
-                            onChange={(e) => setPassword(e.target.value)} />
-                        <label>Password</label>
-                    </div>
-                    <div className={styles["input-box"]}>
-                        <span className={styles["icon"]}>
-                            <MdLock />
-                        </span>
-                        <input
-                            type="password"
-                            required
-                            value={confirmPassword}
-                            onChange={(e) => setConfirmPassword(e.target.value)} />
-                        <label>Confirm Password</label>
-                    </div>
-                    {passwordError && (
-                        <div style={{ color: 'red', fontSize: '14px', marginTop: '5px', textAlign: 'center' }}>
-                            {passwordError}
-                        </div>
-                    )}
-                    <div>
-                        <button className={styles["SetName-button"]} type="submit">Register</button>
-                    </div>
-                </form>
-            </div>
-        </div>
-    );
-}
\ No newline at end of file

myproject/my-app/src/app/SetName/SetName.module.css

-/*
-{
-    margin: 0;
-    padding: 0;
-    box-sizing: border-box;
-    font-family: 'Poppins', sans-serif;
-} */
-
-.SetName-Body
-{
-    z-index: 2000;
-    display: flex;
-    position: absolute;
-    justify-content: center;
-    align-items: center;
-    min-height: 100vh;
-    width: 100vw;
-    background-size: cover;
-    background-color: grey;
-}
-
-.login-box
-{
-    position: relative;
-    width: 400px;
-    height: 450px;
-    background-color: transparent;
-    border: 2px solid rgba(255, 255 , 255, .5);
-    border-radius: 20px;
-    display: flex;
-    justify-content: center;
-    align-items: center;
-    backdrop-filter: blur(15px);
-}
-
-.setname-h2
-{
-    font-size: 2em;
-    color: white;
-    text-align: center;
-}
-
-.input-box
-{
-    position: relative;
-    width: 310px;
-    margin: 30px 0;
-    border-bottom: 2px solid white;
-}
-
-.input-box label
-{
-    position: absolute;
-    top: 50%;
-    left: 5px;
-    transform: translateY(-50%);
-    font-size: 1em;
-    color: white;
-    pointer-events: none;
-    transition: .5s;
-}
-
-.input-box input:focus~label,
-.input-box input:valid~label
-{
-    top: -5px;
-}
-
-.input-box input
-{
-    width: 100%;
-    height: 50px;
-    border: none;
-    outline: none;
-    background-color: transparent;
-    color: black;
-    font-size: 1em;
-    padding: 0 35px 0 5px;
-}
-
-.input-box .icon
-{
-    position: absolute;
-    right: 8px;
-    color: white;
-    font-size: .9em;
-    line-height: 57px;
-}
-
-.SetName-button
-{
-    outline: none;
-    border: none;
-    width: 100%;
-    height: 50px;
-    background-color: white;
-    border-radius: 40px;
-    cursor: pointer;
-    color: black;
-    font-size: 1em;
-    font-weight: bold;
-}
-
-.SetName-button:hover
-{
-    background-color: lightgray;
-}
-
-.register_link
-{
-    font-size: .9em;
-    text-align: center;
-    color: white;
-    margin: 20px 0 10px 0;
-
-    a
-    {
-        text-decoration: none;
-        color: white;
-        font-weight: 600;
-    }
-
-    a:hover
-    {
-        text-decoration: underline;
-    }
-}
\ No newline at end of file

myproject/my-app/src/app/SetName/page.tsx

-'use client';
-
-import styles from"./SetName.module.css"
-import { MdLock, MdPerson } from "react-icons/md";
-import { useState } from "react";
-import Link from "next/link";
-import { useRouter } from 'next/navigation';
-
-const backEnd:string = "http://localhost:8080";
-
-export default function SetName() {
-    const [userName, setUserName] = useState('');
-    const [password, setPassword] = useState('');
-    const router = useRouter();
-
-    const handleSubmit = async (e: React.FormEvent) => {
-        e.preventDefault();
-
-        try {
-            const response = await fetch(`${backEnd}/login`, {
-                method: "POST",
-                headers: {
-                    "Content-Type": "application/json"
-                },
-                body: JSON.stringify({ userName, password })
-            });
-
-            const data = await response.json();
-            if (data.code === 0) {
-                localStorage.setItem('userName', userName);
-                router.push('/ChatRoom');
-            } else {
-                alert(data.msg);
-            }
-        } catch (error) {
-            console.error("Error logging in:", error);
-            alert("Login failed. Please check the console for details.");
-        }
-    }
-    return (
-        <div className={styles["SetName-Body"]}>
-            <div className={styles["login-box"]}>
-                <form onSubmit={handleSubmit}>
-                    <h2 className={styles["setname-h2"]}>Login</h2>
-                    <div className={styles["input-box"]}>
-                        <span className={styles["icon"]}>
-                            <MdPerson />
-                        </span>
-                        <input
-                            required
-                            value={userName}
-                            onChange={(e) => setUserName(e.target.value)} />
-                        <label>Name</label>
-                    </div>
-                    <div className={styles["input-box"]}>
-                        <span className={styles["icon"]}>
-                            <MdLock />
-                        </span>
-                        <input
-                            type="password"
-                            required
-                            value={password}
-                            onChange={(e) => setPassword(e.target.value)} />
-                        <label>Password</label>
-                    </div>
-                    <div>
-                        <button className={styles["SetName-button"]} type="submit">Login in</button>
-                    </div>
-                    <div className={styles["register_link"]}>
-                        <p>Don't have an account?<Link href="/Register">Register</Link></p>
-                    </div>
-                </form>
-            </div>
-        </div>
-    );
-}

myproject/my-app/src/app/globals.css

-:root {
-  /* 字体家族 */
-  --font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, 
-                 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans', 
-                 sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 
-                 'Segoe UI Symbol', 'Noto Color Emoji';
-  
-  /* 字体大小 */
-  --font-size-base: 13px;
-  --font-size-sm: 12px;
-  
-  /* 字体粗细 */
-  --font-weight-normal: 400;
-  --font-weight-medium: 500;
-  
-  /* 行高 */
-  --line-height-title: 1.5;
-  --line-height-body: 1.4;
-  
-  /* 颜色变量 - 基础灰色 */
-  --gray1: hsl(0, 0%, 99%);
-  --gray2: hsl(0, 0%, 97.3%);
-  --gray3: hsl(0, 0%, 95.1%);
-  --gray4: hsl(0, 0%, 93%);
-  --gray5: hsl(0, 0%, 90.9%);
-  --gray6: hsl(0, 0%, 88.7%);
-  --gray7: hsl(0, 0%, 85.8%);
-  --gray8: hsl(0, 0%, 78%);
-  --gray9: hsl(0, 0%, 56.1%);
-  --gray10: hsl(0, 0%, 52.3%);
-  --gray11: hsl(0, 0%, 43.5%);
-  --gray12: hsl(0, 0%, 9%);
-  
-  /* 主题颜色 */
-  --normal-text: var(--gray12);
-  --success-text: hsl(140, 100%, 27%);
-}
-
-/* 全局字体应用 */
-body {
-  margin: 0;
-  font-family: var(--font-family);
-  font-size: var(--font-size-base);
-  line-height: var(--line-height-body);
-  font-weight: var(--font-weight-normal);
-  color: var(--normal-text);
-}
-
-/* 标题样式 */
-h1, h2, h3, h4, h5, h6,
-.title {
-  font-weight: var(--font-weight-medium);
-  line-height: var(--line-height-title);
-}
-
-/* 辅助样式类 */
-.text-sm {
-  font-size: var(--font-size-sm);
-}
-
-.text-medium {
-  font-weight: var(--font-weight-medium);
-}
-
-.text-success {
-  color: var(--success-text);
-}
-
-/* 响应式字体大小（可选） */
-@media (max-width: 600px) {
-  :root {
-    --font-size-base: 12px;
-    --font-size-sm: 11px;
-  }
-}
-
-.context-menu {
-  /* From Uiverse.io by andrew-demchenk0 */ 
-  .button {
-    --main-focus: #2d8cf0;
-    --font-color: #323232;
-    --bg-color-sub: #dedede;
-    --bg-color: #eee;
-    --main-color: #323232;
-    position: relative;
-    width: 150px;
-    height: 40px;
-    cursor: pointer;
-    display: flex;
-    align-items: center;
-    border: 2px solid var(--main-color);
-    box-shadow: 4px 4px var(--main-color);
-    background-color: var(--bg-color);
-    border-radius: 10px;
-    overflow: hidden;
-  }
-
-  .button, .button__icon, .button__text {
-    transition: all 0.3s;
-  }
-
-  .button .button__text {
-    transform: translateX(33px);
-    color: var(--font-color);
-    font-weight: 600;
-  }
-
-  .button .button__icon {
-    position: absolute;
-    transform: translateX(109px);
-    height: 100%;
-    width: 39px;
-    background-color: var(--bg-color-sub);
-    display: flex;
-    align-items: center;
-    justify-content: center;
-  }
-
-  .button .svg {
-    width: 20px;
-    fill: var(--main-color);
-  }
-
-  .button:hover {
-    background: var(--bg-color);
-  }
-
-  .button:hover .button__text {
-    color: transparent;
-  }
-
-  .button:hover .button__icon {
-    width: 148px;
-    transform: translateX(0);
-  }
-
-  .button:active {
-    transform: translate(3px, 3px);
-    box-shadow: 0px 0px var(--main-color);
-  }
-}
-
-.root {
-  display: flex;
-  position: relative;
-}
\ No newline at end of file