Created
November 2, 2014 20:50
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GoでSocket通信プログラム(クライアント側)
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package main | |
import ( | |
"fmt" | |
"net" | |
"os" | |
"time" | |
) | |
func main() { | |
if len(os.Args) != 2 { | |
fmt.Fprintf(os.Stderr, "Usage: %s message", os.Args[0]) | |
os.Exit(1) | |
} | |
message := os.Args[1] | |
serverIP := "192.xxx.xxx.xxx" //サーバ側のIP | |
serverPort := "55555" //サーバ側のポート番号 | |
myIP := "192.xxx.xxx.xxx" //クライアント側のIP | |
myPort := 55556 //クライアント側のポート番号 | |
tcpAddr, err := net.ResolveTCPAddr("tcp", serverIP+":"+serverPort) | |
checkError(err) | |
myAddr := new(net.TCPAddr) | |
myAddr.IP = net.ParseIP(myIP) | |
myAddr.Port = myPort | |
conn, err := net.DialTCP("tcp", myAddr, tcpAddr) | |
checkError(err) | |
defer conn.Close() | |
conn.SetWriteDeadline(time.Now().Add(10 * time.Second)) | |
conn.Write([]byte(message)) | |
readBuf := make([]byte, 1024) | |
conn.SetReadDeadline(time.Now().Add(10 * time.Second)) | |
readlen, err := conn.Read(readBuf) | |
checkError(err) | |
fmt.Println("server: " + string(readBuf[:readlen])) | |
} | |
func checkError(err error) { | |
if err != nil { | |
fmt.Fprintf(os.Stderr, "fatal: error: %s", err.Error()) | |
os.Exit(1) | |
} | |
} |
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