I write this code in the follwings:
package main
import (
"fmt"
"net"
"os"
)
func main() {
service := ":5000"
tcpAddr, err := net.ResolveTCPAddr("tcp", service)
checkError(err)
listener, err := net.ListenTCP("tcp", tcpAddr)
checkError(err)
for i := 0; i < 10; i++ {
conn, err := listener.Accept()
if err != nil {
continue
}
handleClient(conn)
conn.Close()
}
}
func handleClient(conn net.Conn) {
var buf [512]byte
for {
n, err := conn.Read(buf[0:])
if err != nil {
return
}
rAddr := conn.RemoteAddr()
fmt.Println("receive from client", rAddr.String(), string(buf[0:n]))
_, err2 := conn.Write([]byte("welcome client!"))
if err2 != nil {
return
}
}
}
func checkError(err error) {
if err != nil {
fmt.Fprintf(os.Stderr, "fatal error: %s", err.Error())
os.Exit(1)
}
}
I try to run it in Sublime Text3 but it has no reaction and I try to run it
in running windows, it shows:
fatal error: lsiten tcp:5000:bind:Only one usage of each socket
address(protocol/network address/port) is normally permitted.exit status 1
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