aa

business/jxstore/event/event_tcp.go

@@ -1,29 +1,31 @@
 package event
 
 import (
-	"encoding/json"
+	"encoding/hex"
 	"fmt"
 	"git.rosy.net.cn/jx-callback/globals"
 	"io"
 	"net"
 	"strconv"
+	"strings"
 	"sync"
 )
 
+const (
+	heartText        = "1e000f02000151"
+	printText        = "1e00180200"
+	printSuccessText = "1e001802000150"
+)
+
 var (
 	//广播频道(通道)
 	msgChan   = make(chan string)
 	tcpClient = &TcpClient{}
 )
 
-type PrintMsg struct {
-	PrintNo string `json:"print_no"`
-	Data    string `json:"data"`
-}
-
 //连接的客户端,吧每个客户端都放进来
 type TcpClient struct {
-	Clients map[string][]interface{}
+	Clients map[string]net.Conn
 	s       *sync.RWMutex
 }
 
@@ -33,7 +35,7 @@ func Init() {
 }
 
 func listenTcp() {
-	tcpClient.Clients = make(map[string][]interface{})
+	tcpClient.Clients = make(map[string]net.Conn)
 	l, err := net.Listen("tcp", ":8000")
 	if err != nil {
 		fmt.Println("listen error:", err)
@@ -51,7 +53,7 @@ func listenTcp() {
 
 func handleConn(c net.Conn) {
 	var (
-		printMsg = &PrintMsg{}
+		printNo string //打印机编号
 	)
 	if c == nil {
 		globals.SugarLogger.Debugf("conn is nil")
@@ -69,13 +71,23 @@ func handleConn(c net.Conn) {
 			}
 			return
 		}
-		//能转说明是打印信息，不能转说明是打印机的心跳或者连接
-		if err = json.Unmarshal(buffer[:n], &printMsg); err == nil {
-			//是打印信息就把信息放进chan里，后续根据信息里的printno寻找客户端连接并打印
-			msgChan <- string(buffer[:n])
-		} else {
-			//如果是打印机的心跳或者打印信息返回
-			//tcpClient.Clients[]
+		//看是心跳还是打印返回
+		data := hex.EncodeToString(buffer[:n])
+		//证明是心跳
+		if strings.Contains(data, heartText) {
+			printNo = data[len(heartText) : len(data)-8]
+			if tcpClient.Clients[printNo] == nil {
+				tcpClient.Clients[printNo] = c
+			} else {
+				//改变打印机状态
+			}
+		} else if strings.Contains(data, printText) {
+			//证明是打印成功
+			if strings.Contains(data, printSuccessText) {
+
+			} else {
+
+			}
 		}
 	}
 }