Golang 实现Socket服务端和客户端使用TCP协议通讯

package main 
import (
  "net"
  "fmt"
  "os"
  "log"
  "time"
)
 
func main() {
  //建立socket端口监听
  netListen, err := net.Listen("tcp", "localhost:1024")
  CheckError(err) 
  defer netListen.Close() 
  Log("Waiting for clients ...")
 
  //等待客户端访问
  for{
    conn, err := netListen.Accept()   //监听接收
    if err != nil{
      continue    //如果发生错误，继续下一个循环。
    } 
    Log(conn.RemoteAddr().String(), "tcp connect success") //tcp连接成功
    go handleConnection(conn)
  }
}
 
//处理连接
func handleConnection(conn net.Conn) {
  buffer := make([]byte, 2048)    //建立一个slice
  for{
    n, err := conn.Read(buffer)   //读取客户端传来的内容
    if err != nil{
      Log(conn.RemoteAddr().String(), "connection error: ", err)
      return   //当远程客户端连接发生错误（断开）后，终止此协程。
    } 
    Log(conn.RemoteAddr().String(), "receive data string:\n", string(buffer[:n]))
 
    //返回给客户端的信息
    strTemp := "CofoxServer got msg \""+string(buffer[:n])+"\" at "+time.Now().String()
    conn.Write([]byte(strTemp))
  }
}
 
//日志处理
func Log(v ...interface{}) {
  log.Println(v...)
}
 
//错误处理
func CheckError(err error) {
  if err != nil{
    fmt.Fprintf(os.Stderr, "Fatal error: %s", err.Error())
  }
}

package main 
import (
  "net"
  "fmt"
  "log"
  "os"
)
//发送信息
func sender(conn net.Conn) {
  words := "Hello Server!"
  conn.Write([]byte(words))
  fmt.Println("send over")
 
  //接收服务端反馈
  buffer := make([]byte, 2048) 
  n, err := conn.Read(buffer)
  if err != nil {
    Log(conn.RemoteAddr().String(), "waiting server back msg error: ", err)
    return
  }
  Log(conn.RemoteAddr().String(), "receive server back msg: ", string(buffer[:n]))
 
}
//日志
func Log(v ...interface{}) {
  log.Println(v...)
}
 
func main() {
  server := "127.0.0.1:1024"
  tcpAddr, err := net.ResolveTCPAddr("tcp4", server)
  if err != nil {
    fmt.Fprintf(os.Stderr, "Fatal error: %s", err.Error())
    os.Exit(1)
  }
  conn, err := net.DialTCP("tcp", nil, tcpAddr)
  if err != nil {
    fmt.Fprintf(os.Stderr, "Fatal error: %s", err.Error())
    os.Exit(1)
  }
 
  fmt.Println("connection success")
  sender(conn)
}