aa

controllers/api_controller.go

@@ -179,8 +179,8 @@ func connHandler(c net.Conn) {
 	printInit := "1b40"   //打印机初始化
 	voice := "1b59415501" //语音响一次
 	check := "ff"
-	go func() {
-		s := <-textChan
+	select {
+	case s := <-textChan:
 		//写入数据
 		printData := hex.EncodeToString([]byte(s))
 		lenData := int64(len(str) + len(const1) + len(orderNo) + len(printInit) + len(voice) + 1 + 2 + len(printData))
@@ -191,7 +191,7 @@ func connHandler(c net.Conn) {
 			fmt.Println("Write err:", err, n)
 			return
 		}
-	}()
+	}
 }
 
 func int2h8l8(i int64) (h, l string) {