来一个udp版本的吧:
package mainimport ("fmt""log""net""net/http""net/rpc""os")type UDPPush struct {}type PushRequest struct {A string}type PushResponse struct {Data string}var socket *net.UDPConnvar remoteAddr *net.UDPAddrvar err errorfunc main() {// 创建UDP监听socket, err = net.ListenUDP("udp4", &net.UDPAddr{IP: net.IPv4(0, 0, 0, 0),Port: 8080,})if err != nil {fmt.Println("监听失败!", err)return}fmt.Println("start UDP server!")defer socket.Close()go doUDP() //通过协程来使主进程进行rpc的创建// 以下是创建rpc服务器rpc.Register(new(UDPPush)) // 注册rpc服务rpc.HandleHTTP() // 采用http协议作为rpc载体lis, err := net.Listen("tcp", "127.0.0.1:8095")if err != nil {log.Fatalln("fatal error: ", err)}fmt.Fprintf(os.Stdout, "%s", "start rpc connection!\n")http.Serve(lis, nil)}func (*UDPPush) PushData(req PushRequest, res *PushResponse) error {doPush(req)res.Data = "success!"return nil}func doPush(req PushRequest) {// 发送数据sendData := []byte(req.A)fmt.Println("remoteAddr:", remoteAddr, "sendData:", sendData)_, err = socket.WriteToUDP(sendData, remoteAddr)if err != nil {returnfmt.Println("发送数据失败!", err)}}func doUDP() {for {// 读取数据data := make([]byte, 4096)var read intread, remoteAddr, err = socket.ReadFromUDP(data)if err != nil {fmt.Println("读取数据失败!", err)continue}fmt.Println(read, remoteAddr)fmt.Printf("%s\n\n", data)sendData := []byte("this is from server")_, err = socket.WriteToUDP(sendData, remoteAddr)if err != nil {returnfmt.Println("发送数据失败!", err)}}}
udp客户端
package mainimport ("fmt""net")func main() {// 创建连接socket, err := net.DialUDP("udp4", nil, &net.UDPAddr{IP: net.IPv4(192, 168, 2, 104),Port: 8080,})if err != nil {fmt.Println("连接失败!", err)return}defer socket.Close()// 发送数据sendData := []byte("hello server!")_, err = socket.Write(sendData)if err != nil {fmt.Println("发送数据失败!", err)return}for {// 接收数据data := make([]byte, 4096)read, remoteAddr, err := socket.ReadFromUDP(data)if err != nil {fmt.Println("读取数据失败!", err)return}fmt.Println(read, remoteAddr)fmt.Printf("%s\n", data)}}
rpc客户端:
package mainimport ("fmt""log""net/rpc")// 算数运算请求结构体type PushRequestClient struct {A string}type PushResponseClient struct {Data string}func main() {conn, err := rpc.DialHTTP("tcp", "127.0.0.1:8095")if err != nil {log.Fatalln("dialing error: ", err)}req := PushRequestClient{"this data is from rpc client....\n"}var res PushResponseClienterr = conn.Call("UDPPush.PushData", req, &res) // 推送消息,TCPPush和rpcServer里面的是一样的,并且PushData在rpcServer里面是可导出的if err != nil {log.Fatalln("push error: ", err)}fmt.Println(res.Data)}
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