aa

main.go

@@ -9,6 +9,7 @@ import (
 	"net/http"
 	_ "net/http/pprof"
 	"os"
+	"strconv"
 	"time"
 
 	"git.rosy.net.cn/baseapi/platformapi/dingdingapi"
@@ -186,31 +187,39 @@ func handleConn(c net.Conn) {
 			return
 		}
 		fmt.Println("read data：", hex.EncodeToString(buffer[:n]))
-		b := []byte("ok")
-		c.Write([]byte(hex.EncodeToString(b)))
+		str := "1e"
+		const1 := "0200ff50"
+		orderNo := "0001"     //订单序列号
+		printInit := "1b40"   //打印机初始化
+		voice := "1b59415501" //语音响一次
+		check := "ff"
+		s := "oa2d"
+		printData := hex.EncodeToString([]byte(s))
+		lenData := int64(len(str) + len(const1) + len(orderNo) + len(printInit) + len(voice) + 1 + 2 + len(printData))
+		x1, x2 := int2h8l8(lenData)
+		data := const1 + x1 + x2 + orderNo + printInit + voice + printData + check
+		n2, err := c.Write([]byte(data))
+		fmt.Println("write data: ", hex.EncodeToString(buffer[:n2]))
 	}
 }
 
-//func handleConn(c net.Conn) {
-//	if c == nil {
-//		fmt.Println("conn is nil")
-//		return
-//	}
-//	defer c.Close()
-//	//reader := bufio.NewReader(c)
-//	buffer := make([]byte, 1024)
-//	for {
-//		n, err := c.Read(buffer)
-//		if err != nil {
-//			if err == io.EOF {
-//				fmt.Println("connection close")
-//			} else {
-//				fmt.Println("ReadString err", err)
-//			}
-//			return
-//		}
-//		fmt.Println("read data：", buffer[:n])
-//		b := []byte("ok")
-//		c.Write(b)
-//	}
-//}
+func int2h8l8(i int64) (h, l string) {
+	origin2 := fmt.Sprintf("%b", i)
+	flag := 16 - len(origin2)
+	for i := 0; i < flag; i++ {
+		origin2 = "0" + origin2
+	}
+	begin8 := origin2[:8]
+	end8 := origin2[8:]
+	r1, _ := strconv.ParseInt(begin8, 2, 32)
+	r2, _ := strconv.ParseInt(end8, 2, 32)
+	h = fmt.Sprintf("%x", r1)
+	l = fmt.Sprintf("%x", r2)
+	if len(h) < 2 {
+		h = "0" + h
+	}
+	if len(l) < 2 {
+		l = "0" + l
+	}
+	return h, l
+}