Golang 局域网广播消息

局域网广播消息"/>

Golang 局域网广播消息

消息发送方 server.go

package mainimport ("bufio""log""net""os"
)func main() {laddr := net.UDPAddr{IP:   net.IPv4(0, 0, 0, 0),//写局域网下分配IP，0.0.0.0可以用来测试Port: 8080,}raddr := net.UDPAddr{IP:   net.IPv4(192, 168, 1, 255), //局域网广播地址Port: 8080,}conn, err := net.DialUDP("udp", &laddr, &raddr)if err != nil {log.Panicln(err.Error())}defer conn.Close()scan := bufio.NewScanner(os.Stdin)for scan.Scan() {mess := scan.Text()if mess == "quit" {return}_, err := conn.Write([]byte(mess))if err != nil {log.Panicln(err.Error())}}
}

消息接收方：client.go

package mainimport ("log""net"
)func main() {net.InterfaceAddrs()laddr := net.UDPAddr{IP:   net.IPv4(0, 0, 0, 0), //写局域网下分配IP，0.0.0.0可以用来测试Port: 8080,}conn, err := net.ListenUDP("udp", &laddr)if err != nil {log.Panicln(err.Error())}defer conn.Close()buf := make([]byte, 1024)for {n, err := conn.Read(buf)if err != nil {log.Panicln(err.Error())}log.Println(string(buf[:n]))}
}