Golang如何实现异步Udp Server接入数据

arterforyou · · 2162 次点击
折腾最后这样吧: package main import ( "net" "log" "os" "fmt" ) type Data struct{ C string D *net.UDPAddr } const MAX_MTU int = 1024 * 64 var path string = "/data/flume-agent/log/go_xg_udp.log" func main() { // 创建监听 log.SetFlags(0) file, err := os.OpenFile(path, os.O_CREATE|os.O_RDWR|os.O_APPEND, 0666) if err != nil { log.Fatalln("fail to create go_udp.log file!") } logger := log.New(file, "", log.LstdFlags|log.Llongfile) logger.Println("started udp server") socket, err := net.ListenUDP("udp4", &net.UDPAddr{ IP: net.IPv4(0, 0, 0, 0), Port: 5141, }) if err != nil { logger.Println("监听失败!", err) return } defer socket.Close() c := make(chan Data, 1024) // 带缓冲的通道 for { // 读取数据 data := make([]byte, MAX_MTU) read, remoteAddr, err := socket.ReadFromUDP(data) if err != nil { logger.Println("读取数据失败!", err) continue } go sets(string(data[:read]), remoteAddr, c) select { case k:=<-c: fmt.Println(k.D.IP,k.C) } } } func sets(k string, remoteAddr *net.UDPAddr, c chan Data){ c<-Data{k, remoteAddr} } 原来udp启动之后,后面的并发不并发自己随便写就可以了,还是可以走到的 参考:https://tonychyi.wetofu.top/2015/11/25/async-udp-server-using-go/
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<pre><code>package main import ( "net" "log" "os" "fmt" ) type Data struct{ C string D *net.UDPAddr } const MAX_MTU int = 1024 * 64 var path string = "/data/flume-agent/log/go_xg_udp.log" func main() { // 创建监听 log.SetFlags(0) file, err := os.OpenFile(path, os.O_CREATE|os.O_RDWR|os.O_APPEND, 0666) if err != nil { log.Fatalln("fail to create go_udp.log file!") } logger := log.New(file, "", log.LstdFlags|log.Llongfile) logger.Println("started udp server") socket, err := net.ListenUDP("udp4", &net.UDPAddr{ IP: net.IPv4(0, 0, 0, 0), Port: 5141, }) if err != nil { logger.Println("监听失败!", err) return } defer socket.Close() c := make(chan Data, 1024) // 带缓冲的通道 for { // 读取数据 data := make([]byte, MAX_MTU) read, remoteAddr, err := socket.ReadFromUDP(data) if err != nil { logger.Println("读取数据失败!", err) continue } go sets(string(data[:read]), remoteAddr, c) select { case k:=<-c: fmt.Println(k.D.IP,k.C) } } } func sets(k string, remoteAddr *net.UDPAddr, c chan Data){ c<-Data{k, remoteAddr} } </code></pre> 折腾这样吧,发现之前发的没有用markdown标注,不好意思 原来udp启动之后,后面的并发不并发自己随便写就可以了,还是可以走到的 [参考:](https://tonychyi.wetofu.top/2015/11/25/async-udp-server-using-go/)https://tonychyi.wetofu.top/2015/11/25/async-udp-server-using-go/
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