52 lines
1.1 KiB
Go
52 lines
1.1 KiB
Go
package main
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import (
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"fmt"
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"net"
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"bytes"
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"encoding/gob"
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)
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type Broadcast struct {
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name string
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desc string
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code int32
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}
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func (b Broadcast) toByte() []byte {
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var buf bytes.Buffer
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enc := gob.NewEncoder(&buf)
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err := enc.Encode(b)
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if err != nil {
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panic(err)
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}
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return buf.Bytes()
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}
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// UDP 客户端
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func main() {
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socket, err := net.DialUDP("udp", nil, &net.UDPAddr{
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IP: net.IPv4(0, 0, 0, 0),
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Port: 30000,
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})
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if err != nil {
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fmt.Println("连接服务端失败，err:", err)
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return
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}
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defer socket.Close()
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// sendData := []byte("Hello server")
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sendData := Broadcast{"hhh", "halppy", 1}
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_, err = socket.Write(sendData.toByte()) // 发送数据
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if err != nil {
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fmt.Println("发送数据失败，err:", err)
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return
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}
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data := make([]byte, 4096)
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n, remoteAddr, err := socket.ReadFromUDP(data) // 接收数据
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if err != nil {
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fmt.Println("接收数据失败，err:", err)
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return
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}
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fmt.Printf("recv:%v addr:%v count:%v\n", string(data[:n]), remoteAddr, n)
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}
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