update

main.go

@@ -5,11 +5,9 @@ import (
 	"chain33-pai/pkg/setting"
 	"chain33-pai/pkg/util"
 	"chain33-pai/routers"
-	"chain33-pai/service/pai_service"
 	"fmt"
 	"github.com/gin-gonic/gin"
-	//"log"
-	"net"
+
 	"net/http"
 	"time"
 	clog "github.com/33cn/chain33/common/log"
@@ -27,7 +25,7 @@ func init() {
 }
 
 var tlog = log.New("main", "main.go")
-var serial string
+
 
 // @title Golang Gin API
 // @version 1.0
@@ -38,7 +36,7 @@ var serial string
 func main() {
 	gin.SetMode(setting.ServerSetting.RunMode)
 	//区域网广播设备
-	go broadcast()
+	go app.Broadcast()
 	//节点操作
 	go app.BityuanJob(time.NewTicker(time.Second*30))
 	//树莓派内置程序操作
@@ -79,53 +77,3 @@ func main() {
 	//	log.Printf("Server err: %v", err)
 	//}
 }
-
-
-func broadcast()  {
-	var pai pai_service.Pai
-	send := "hello world"
-	if serial != "" {
-		send = serial
-	} else {
-		ok := pai.GetConfig()
-		if ok {
-			send = pai.Serial
-			serial = pai.Serial
-		}
-	}
-
-	//ip 会变化
-	ip,err := util.GetLocalIpByName("wlan0")
-	if err != nil || ip == nil {
-		tlog.Error("broadcast",err)
-		ip,err = util.GetLocalIpByName("eth0")
-		if err != nil {
-			panic(err)
-		}
-	}
-	// 这里设置发送者的IP地址，自己查看一下自己的IP自行设定
-	laddr := net.UDPAddr{
-		IP:   ip.IP,
-		Port: 8804,
-	}
-
-	// 这里设置接收者的IP地址为广播地址
-	raddr := net.UDPAddr{
-		IP:   net.IPv4(255, 255, 255, 255),
-		Port: 8804,
-	}
-	conn, err := net.DialUDP("udp", &laddr, &raddr)
-	if err != nil {
-		tlog.Error("broadcast","net error ",err)
-		panic(err)
-	}
-
-	for {
-		_, err = conn.Write([]byte(send))
-		if err != nil{
-			panic(err)
-		}
-		tlog.Info("ip:",ip.IP.String(),"broadcast","udp",send)
-		time.Sleep(time.Second*1)
-	}
-}
\ No newline at end of file

pkg/app/broadcast.go

+package app
+
+import (
+	"chain33-pai/service/pai_service"
+	"chain33-pai/pkg/util"
+	"net"
+	"time"
+)
+
+var (
+	serial string
+	runningAddr *net.IPNet
+)
+
+func Broadcast()  {
+	var pai pai_service.Pai
+	send := "hello world"
+	if serial != "" {
+		send = serial
+	} else {
+		ok := pai.GetConfig()
+		if ok {
+			send = pai.Serial
+			serial = pai.Serial
+		}
+	}
+	for {
+		//ip 会变化
+		ip,err := util.GetLocalIpByName("wlan0")
+		if err != nil || ip == nil {
+			tlog.Error("broadcast",err)
+			ip,err = util.GetLocalIpByName("eth0")
+			if err != nil {
+				panic(err)
+			}
+		}
+		// 这里设置发送者的IP地址，自己查看一下自己的IP自行设定
+		laddr := net.UDPAddr{
+			IP:   ip.IP,
+			Port: 8804,
+		}
+
+		// 这里设置接收者的IP地址为广播地址
+		raddr := net.UDPAddr{
+			IP:   net.IPv4(255, 255, 255, 255),
+			Port: 8804,
+		}
+		if runningAddr.IP.String() != ip.IP.String() {
+			laddr = net.UDPAddr{
+				IP:   ip.IP,
+				Port: 8804,
+			}
+		}
+		conn, err := net.DialUDP("udp", &laddr, &raddr)
+		if err != nil {
+			tlog.Error("broadcast","net error ",err)
+			panic(err)
+		}
+		runningAddr = ip
+
+		_, err = conn.Write([]byte(send))
+		if err != nil{
+			panic(err)
+		}
+		tlog.Info("broadcast","ip:",ip.IP.String(),"udp",send)
+		time.Sleep(time.Second*1)
+
+	}
+
+}