golang 实现tcp server端和client端,并计算RTT时间操作

server端代码：

package main import ( 'fmt' 'net' 'log' 'os') func main() { addr := '0.0.0.0:8787' tcpAddr, err := net.ResolveTCPAddr('tcp',addr) if err != nil { log.Fatalf('net.ResovleTCPAddr fail:%s', addr) //等价于print err后，再os.Exit(1) } listener, err := net.ListenTCP('tcp', tcpAddr) if err != nil { log.Fatalf('listen %s fail: %s', addr, err) }else { log.Println('rpc listening', addr) } for { conn, err := listener.Accept() if err != nil { log.Println('listener.Accept error:', err) continue } go handle_Client(conn) }} func handle_Client(conn net.Conn) { defer conn.Close() var write_buffer []byte = []byte('ok') read_buffer := make([]byte, 128) n, err1 := conn.Read(read_buffer) if err1 != nil { fmt.Println('ser Read failed:', err1) os.Exit(1) } m, err2 := conn.Write(write_buffer) if err2 != nil { fmt.Println('ser send error:', err2) os.Exit(1) } fmt.Println('ser read cli send data count:', n, 'msg:', string(read_buffer)) fmt.Println('ser send data to cli count:', m, 'msg:', string(write_buffer)) fmt.Println('********one connetion end*********')}

client端代码：

package main import ( 'fmt' 'net' 'os' 'time') func main() { conn, err := net.Dial('tcp', '127.0.0.1:8787') if err != nil { fmt.Println('dial failed:', err) os.Exit(1) } defer conn.Close() var write_buffer []byte = []byte('Hi,server. I’m client.') read_buffer := make([]byte, 128) start_time := time.Now() n, err2 := conn.Write(write_buffer) if err2 != nil { fmt.Println('cli send error:', err2) os.Exit(1) } m, err1 := conn.Read(read_buffer) if err1 != nil { fmt.Println('cli Read failed:', err1) os.Exit(1) } response_time := time.Since(start_time) RTT_time := float64(response_time.Nanoseconds()) / 1e+06 //ns-->ms fmt.Println(RTT_time) fmt.Println('cli send data to ser count:', n, 'msg:', string(write_buffer)) fmt.Println('cli read ser data count:', m, 'msg:', string(read_buffer))}

补充：go 语言 TCP服务器接受客户端字符串信息

我就废话不多说了，大家还是直接看代码吧~

func hand_conn(conn net.Conn) ([]byte){ defer conn.Close() //clientarr := conn.RemoteAddr() //获取连接到的对像的IP地址 result := bytes.NewBuffer(nil) var buf [512]byte for { n, err := conn.Read(buf[0:]) result.Write(buf[0:n]) if err != nil { if err == io.EOF { break } } } //explan_rec_infos(string(result.Bytes())) return result.Bytes()}func main() { fmt.Println('Hello World! go server') server, err := net.Listen('tcp', ':9993') if err == nil { //若果err为nil，则成功创建 index := 1 for { index++ con, _ := server.Accept() fmt.Println('有一个客户连接' , index) hand_conn(con) } } else { return }}

以上为个人经验，希望能给大家一个参考，也希望大家多多支持优爱好网。如有错误或未考虑完全的地方，望不吝赐教。