Golang UDP server-side client Example

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Golang UDP server-side client Example

Service side:

package mainimport (" FMT "" NET ") Func main () {//Create listener socket, err: = NET.L ISTENUDP ("Udp4", &net. udpaddr{ip:net. IPV4 (0, 0, 0, 0), port:8080,}) if err! = Nil {fmt. PRINTLN ("Listener failed!", err) return} defer socket. Close () for {//Read data: = Make ([]byte, 4096) read, remoteaddr, err: = socket. READFROMUDP (data) if err! = Nil {fmt. PRINTLN ("Read data failed!", err) continue} FMT. Println (read, remoteaddr) fmt.        Printf ("%s\n\n", data)//send senddata: = []byte ("Hello client!") _, Err = socket. WRITETOUDP (SendData, remoteaddr) if err! = Nil {return FMT. Println ("Failed to send data!", Err)}}} 

client:

Package Mainimport (    "FMT"    "NET") Func main () {    //Create connection    socket, err: = Net. DIALUDP ("UDP4", Nil, &net. udpaddr{        IP:   net. IPV4 (192, 168, 1, 103),        port:8080,    })    if err! = Nil {        FMT. Println ("Connection Failed!", err)        return    }    defer socket. Close ()    //Send data    senddata: = []byte ("Hello server!")    _, Err = socket. Write (senddata)    if err! = Nil {        FMT. PRINTLN ("Send data Failed!", err)        return    }    //Receive data    : = Make ([]byte, 4096)    read, remoteaddr, err: = Socket. READFROMUDP (data)    if err! = Nil {        FMT. PRINTLN ("Read data failed!", err)        return    }    fmt. Println (read, remoteaddr)    FMT. Printf ("%s\n", Data)}