使用go实现一个简单的聊天服务器

使用go实现一个简单的聊天服务器，对于客户端发送的消息，服务端添加时间戳和冒号后返回客户端。

1. 代码

import ("bufio""fmt""net""strings""time"
)func handleConnection(conn net.Conn) {defer conn.Close()fmt.Println("Client connected:", conn.RemoteAddr())reader := bufio.NewReader(conn)for {// 读取客户端消息message, err := reader.ReadString('\n')if err != nil {fmt.Println("Client disconnected:", conn.RemoteAddr())return}// 添加时间戳timestamp := time.Now().Format("2006-01-02 15:04:05")response := fmt.Sprintf("%s: %s", timestamp, strings.TrimSpace(message))// 返回处理后的消息conn.Write([]byte(response + "\n"))}
}func main() {// 监听 TCP 连接ln, err := net.Listen("tcp", ":8090")if err != nil {fmt.Println("Error listening:", err)return}defer ln.Close()fmt.Println("Server started on :8090")for {// 接受客户端连接conn, err := ln.Accept()if err != nil {fmt.Println("Error accepting connection:", err)continue}// 处理客户端连接go handleConnection(conn)}
}

2. 导出二进制包

# 打包x86部署包GOARCH=amd64 GOOS=linux go build -o gochat  main.go# 打包arm部署包GOARCH=arm64 GOOS=linux go build -o gochat main.go

3. 构建成镜像

Dockerfile:

# Build the stellaris-core binary
FROM alpine:3.11WORKDIR /workspace# Copy the go source
COPY gochat /gochat# Build
ENTRYPOINT ["/gochat"]

build.sh:

docker build -t gochat:v1 . -f Dockerfile

start.sh

docker run --name gochat  -d -p 8090:8090  docker.io/library/gochat:v1

4. 使用telnet测试

telnet localhost 8089send hello