Golang并发实现Udp服务端

package main

import (
    "fmt"
    "net"
    "os"
)

// 限制goroutine数量
var limitChan = make(chan bool, 1000)

// UDP goroutine 实现并发读取UDP数据
func udpProcess(conn *net.UDPConn)  {
    data := make([]byte, 1024)
    n,remoteAddr,err := conn.ReadFromUDP(data)
    if err != nil {
        fmt.Println("Failed To Read UDP Msg, Error: " + err.Error())
    }

    str := string(data[:n])
    fmt.Println("Reveive From Client, Data: " + str)
    conn.WriteToUDP([]byte(str), remoteAddr)
    <- limitChan
}

func udpServer(address string)  {
    udpAddr, err := net.ResolveUDPAddr("udp", address)
    conn, err := net.ListenUDP("udp", udpAddr)
    defer conn.Close()

    if err != nil {
        fmt.Println("Read From Connect Failed, Err :" + err.Error())
        os.Exit(1)
    }

    for {
        limitChan <- true
        go udpProcess(conn)
    }

}

func main() {
    address := "0.0.0.0:8080"
    udpServer(address)
}

有疑问加站长微信联系（非本文作者）