一个人命中最大的幸运，莫过于在他人生中途，即在他年富力强时发现了自己生活的使命。
本文实例讲述了GO语言实现简单TCP服务的方法。分享给大家供大家参考。具体实现方法如下：
package main
import (
"net"
"fmt"
)
var ( maxRead = 1100
msgStop = []byte("cmdStop")
msgStart = []byte("cmdContinue")
)
func main() {
hostAndPort := "localhost:54321"
listener := initServer(hostAndPort)
for {
conn, err := listener.Accept()
checkError(err, "Accept: ")
go connectionHandler(conn)
}
}
func initServer(hostAndPort string) *net.TCPListener {
serverAddr, err := net.ResolveTCPAddr("tcp", hostAndPort)
checkError(err, "Resolving address:port failed: '" + hostAndPort + "'")
listener, err := net.ListenTCP("tcp", serverAddr)
checkError(err, "ListenTCP: ")
println("Listening to: ", listener.Addr().String())
return listener
}
func connectionHandler(conn net.Conn) {
connFrom := conn.RemoteAddr().String()
println("Connection from: ", connFrom)
talktoclients(conn)
for {
var ibuf []byte = make([]byte, maxRead + 1)
length, err := conn.Read(ibuf[0:maxRead])
ibuf[maxRead] = 0 // to prevent overflow
switch err {
case nil:
handleMsg(length, err, ibuf)
default:
goto DISCONNECT
}
}
DISCONNECT:
err := conn.Close()
println("Closed connection:" , connFrom)
checkError(err, "Close:" )
}
func talktoclients(to net.Conn) {
wrote, err := to.Write(msgStart)
checkError(err, "Write: wrote " + string(wrote) + " bytes.")
}
func handleMsg(length int, err error, msg []byte) {
if length > 0 {
for i := 0; ; i++ {
if msg[i] == 0 {
break
}
}
fmt.Printf("Received data: %v", string(msg[0:length]))
fmt.Println(" length:",length)
}
}
func checkError(error error, info string) {
if error != nil {
panic("ERROR: " + info + " " + error.Error()) // terminate program
}
}
希望本文所述对大家的Go语言程序设计有所帮助。
以上就是GO语言如何实现简单TCP服务的方法。成败一笑过，潇洒向前行。人生充满变数，不知下一分下一秒我们将在何处。所以，别让自己的心太累，简单一点，快乐一些，看花开花落，听流水潺潺，好好珍惜生活的每一天，轻松快乐淡定从容地去生活！更多关于GO语言如何实现简单TCP服务的方法请关注haodaima.com其它相关文章！
