656 lines
20 KiB
Go
656 lines
20 KiB
Go
package event
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import (
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"encoding/hex"
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"encoding/json"
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"fmt"
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"git.rosy.net.cn/baseapi/utils"
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"git.rosy.net.cn/jx-callback/business/jxutils"
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"git.rosy.net.cn/jx-callback/business/model"
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"git.rosy.net.cn/jx-callback/business/model/dao"
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"git.rosy.net.cn/jx-callback/globals"
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"io"
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"net"
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"regexp"
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"strconv"
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"strings"
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"sync"
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"time"
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)
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const (
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heartText = "1e000f02000151"
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printText = "1e00180200"
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printSuccessText = "1e001802000150"
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printErrWithoutPaper = "05"
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printMsgAlreadySend = 2 //已经发出打印消息
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printMsgSuccess = 1 //打印成功
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printMsgWait = 0 //待打印
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printMsgFail = -1 //打印失败（打印机报出）
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printMsgErr = -2 //京西报出
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printMsgAlreadyLoad = 3 //已放入队列
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heartErrNormal = "00" //正常
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heartErrWithoutPaper = "04" //心跳错，缺纸
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heartErrHot = "08" //过热
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printerStatusOnlineWithoutPaper = 2 //在线缺纸
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printerStatusOnline = 1 //在线
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printerStatusOffline = -1 //离线
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printerStatusOverFlow = -2 //流量超了
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)
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//标签
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const (
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signBR = "<br>" //换行
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signCenter = "<center>" //居中
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signLeft = "<left>" //居左
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signRight = "<right>" //居右
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signBig = "<b>" //字体放大
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signHighBig = "<hb>" //字体纵向放大
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signWideBig = "<wb>" //字体横向放大
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signQrCenter = "<qrc>" //二维码居中
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signQrLeft = "<qrl>" //二维码居左
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signQrRight = "<qrr>" //二维码居右
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signSound = "<sound>" //声音
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hexSignBROrEXE = "0a"
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hexSignCenter = "1b6101"
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hexSignLeft = "1b6100"
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hexSignRight = "1b6102"
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hexSignNormal = "1b2100"
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hexSignBig = "1b2130"
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hexSignHighBig = "1b2110"
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hexSignWideBig = "1b2120"
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hexSignQrCenter = "1d5802"
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hexSignQrLeft = "1d5800"
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hexSignQrRight = "1d5804"
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hexSignQr = "1b5a000106" //"1b5a000106" 0600 : 后面二维码的字节数
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hexSignQrEnd = "000a1b40" //000a0a0a1b40
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hexSignSound = "1d6b40"
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byteSignBR = "3c62723e" //换行
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byteSignCenter = "3c63656e7465723e" //居中
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byteSignLeft = "3c6c6566743e" //居左
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byteSignRight = "3c72696768743e" //居右
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byteSignBig = "3c623e" //字体放大
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byteSignHighBig = "3c68623e" //字体纵向放大
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byteSignWideBig = "3c77623e" //字体横向放大
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byteSignQrCenter = "3c7172633e"
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byteSignQrLeft = "3c71726c3e"
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byteSignQrRight = "3c7172723e"
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byteSignSound = "3c736f756e643e"
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byteSignCenterE = "3c2f63656e7465723e" //居中
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byteSignLeftE = "3c2f6c6566743e" //居左
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byteSignRightE = "3c2f72696768743e" //居右
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byteSignBigE = "3c2f623e" //字体放大
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byteSignHighBigE = "3c2f68623e" //字体纵向放大
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byteSignWideBigE = "3c2f77623e" //字体横向放大
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byteSignQrCenterE = "3c2f7172633e"
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byteSignQrLeftE = "3c2f71726c3e"
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byteSignQrRightE = "3c2f7172723e"
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byteSignSoundE = "3c2f736f756e643e"
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)
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var (
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tcpClient = &TcpClient{}
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printErrMap = map[string]string{
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printErrWithoutPaper: "打印机缺纸！",
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}
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signMap = map[string]string{
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byteSignBR: hexSignBROrEXE,
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}
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regexpQrc = regexp.MustCompile(byteSignQrCenter + "(.*?)" + byteSignQrCenterE)
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regexpQrl = regexp.MustCompile(byteSignQrLeft + "(.*?)" + byteSignQrLeftE)
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regexpQrr = regexp.MustCompile(byteSignQrRight + "(.*?)" + byteSignQrRightE)
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regexpSound = regexp.MustCompile(byteSignSound + "(.*?)" + byteSignSoundE)
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printMsgChan = make(chan *model.PrintMsg)
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printMsgCallbackChan = make(chan string)
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printMsgChanFail = make(chan *model.PrintMsg)
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)
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type PrintInfo struct {
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C net.Conn
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Status int // 2 //在线缺纸 1 //在线 -1 //离线
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StatusTime time.Time
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}
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//连接的客户端,吧每个客户端都放进来
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type TcpClient struct {
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Clients map[string]*PrintInfo
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s *sync.RWMutex
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}
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type GetPrintStatus struct {
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PrintNo string //打印机编号
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AppID int
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}
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func ListenTcp() {
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tcpClient.Clients = make(map[string]*PrintInfo)
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tcpClient.s = new(sync.RWMutex)
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l, err := net.Listen("tcp", ":8000")
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if err != nil {
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fmt.Println("listen error:", err)
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return
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}
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globals.SugarLogger.Debugf("begin listenTcp port 8000......")
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go HandleTcpMessages()
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go HandleCheckTcpHeart()
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//go doPrint2(printMsgChan)
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//go doPrint(printMsgChanFail)
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for {
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c, err := l.Accept()
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if err != nil {
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fmt.Println("accept error:", err)
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break
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}
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go handleConn(c)
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}
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}
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func handleConn(c net.Conn) {
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var (
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printNo string //打印机编号
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printStatus *GetPrintStatus
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)
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if c == nil {
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globals.SugarLogger.Debugf("conn is nil")
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return
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}
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defer c.Close()
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buffer := make([]byte, 1024)
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for {
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n, err := c.Read(buffer)
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if err != nil {
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if err == io.EOF {
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fmt.Println("connection close")
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} else {
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fmt.Println("ReadString err", err)
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}
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return
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}
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//也可能是查状态的
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if err = json.Unmarshal(buffer[:n], &printStatus); err == nil {
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fmt.Println("handleConn msg: ", string(buffer[:n]))
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if printStatus != nil {
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var status int
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if tcpClient.Clients[printStatus.PrintNo] != nil {
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status = tcpClient.Clients[printStatus.PrintNo].Status
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} else {
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status = printerStatusOffline
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}
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globals.SugarLogger.Debugf("handleConn getstatus :%v", utils.Format4Output(tcpClient.Clients[printStatus.PrintNo], true))
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c.Write([]byte(utils.Int2Str(status)))
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c.Close()
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}
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}
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//看是心跳还是打印返回
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data := hex.EncodeToString(buffer[:n])
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//证明是心跳
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if strings.Contains(data, heartText) {
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globals.SugarLogger.Debugf("handleConn heart: %v", data)
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printNoData, _ := hex.DecodeString(data[len(heartText) : len(data)-8])
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printNo = string(printNoData)
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globals.SugarLogger.Debugf("handleConn printno :[%v]", printNo)
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status := printStatus2JxStatus(data[len(data)-8 : len(data)-6])
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if tcpClient.Clients[printNo] == nil {
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printInfo := &PrintInfo{
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C: c,
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Status: printStatus2JxStatus(data[len(data)-8 : len(data)-6]),
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StatusTime: time.Now(),
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}
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tcpClient.s.Lock()
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tcpClient.Clients[printNo] = printInfo
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tcpClient.s.Unlock()
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changePrinterStatus(printNo, status)
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if status > 0 {
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//printFail()
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}
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} else {
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//改变打印机状态
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tcpClient.s.Lock()
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changePrinterStatus(printNo, status)
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if tcpClient.Clients[printNo] != nil {
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if tcpClient.Clients[printNo].Status != status {
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tcpClient.Clients[printNo].Status = status
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}
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tcpClient.Clients[printNo].StatusTime = time.Now()
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}
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tcpClient.s.Unlock()
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}
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} else if strings.Contains(data, printText) {
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globals.SugarLogger.Debugf("handleConn print callback: %v", data)
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printMsgCallbackChan <- data
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//changePrintMsg(data)
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}
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}
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}
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func changePrinterStatus(printNo string, status int) {
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var (
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db = dao.GetDB()
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)
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if printer, err := dao.GetPrinter(db, printNo); err == nil && printer != nil {
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feilds := []string{}
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if printer.Status != status {
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printer.Status = status
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feilds = append(feilds, "Status")
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}
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isOnline := 0
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if status == printerStatusOnline || status == printerStatusOnlineWithoutPaper {
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isOnline = model.YES
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} else {
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isOnline = model.NO
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}
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if isOnline != printer.IsOnline {
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printer.IsOnline = isOnline
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feilds = append(feilds, "IsOnline")
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}
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if len(feilds) > 0 {
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dao.UpdateEntity(db, printer, feilds...)
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}
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}
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}
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func printFail() (err error) {
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//新开机的打印失败和错误的
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var (
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db = dao.GetDB()
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)
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prints, _ := dao.GetPrintMsgs(db, []int{printMsgWait, printMsgFail, printMsgErr}, time.Now().Add(-time.Hour*3), time.Now(), 0, 999)
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for _, printMsg := range prints {
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printMsgChanFail <- printMsg
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printMsg.Status = printMsgAlreadyLoad
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dao.UpdateEntity(db, printMsg, "Status")
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}
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return err
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}
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func doPrint(printMsgChanFail chan *model.PrintMsg) (err error) {
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var (
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db = dao.GetDB()
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)
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for {
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select {
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case printMsg, _ := <-printMsgChanFail:
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var (
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data []byte
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c net.Conn
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)
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if printMsg != nil {
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if err = checkPrintMsg(db, printMsg); err == nil {
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tcpClient.s.RLock()
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if tcpClient.Clients[printMsg.PrintNo] != nil {
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if tcpClient.Clients[printMsg.PrintNo].Status == printerStatusOnline {
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if tcpClient.Clients[printMsg.PrintNo].C != nil {
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c = tcpClient.Clients[printMsg.PrintNo].C
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data, err = buildMsg(printMsg)
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}
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}
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}
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tcpClient.s.RUnlock()
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if c != nil {
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if _, err = c.Write(data); err != nil {
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globals.SugarLogger.Debugf("handleTcpMessages err [%v]", err)
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delete(tcpClient.Clients, printMsg.PrintNo)
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c.Close()
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} else {
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globals.SugarLogger.Debugf("handleTcpMessages success, data: %v", hex.EncodeToString(data))
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printMsg.Status = printMsgAlreadySend
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dao.UpdateEntity(db, printMsg, "Status", "Comment")
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}
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}
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}
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}
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}
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}
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}
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func printStatus2JxStatus(printStatus string) (status int) {
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if printStatus == heartErrWithoutPaper {
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return printerStatusOnlineWithoutPaper
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} else if printStatus == heartErrNormal {
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return printerStatusOnline
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}
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return status
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}
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func changePrintMsg(data string) (err error) {
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var (
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db = dao.GetDB()
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printNo, comment string
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orderNo int64
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status int
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)
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//1、先找出打印机编号和订单序列号，这两个确定唯一一条消息
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orderNo = h8l82int(data[len(data)-6:len(data)-4], data[len(data)-4:len(data)-2])
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printNoData, _ := hex.DecodeString(data[len(printSuccessText) : len(data)-6])
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printNo = string(printNoData)
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//2、打印成功改变打印表的状态
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if strings.Contains(data, printSuccessText) {
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//1e001802000150323032313036313530303030313000013c
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status = printMsgSuccess
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} else {
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//打印失败也改变状态并更新失败原因
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status = printMsgFail
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comment = printErrMap[data[12:14]]
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}
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if tcpClient.Clients[printNo] == nil {
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return err
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}
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if printMsgs, err := dao.GetPrintMsgNoPage(db, printNo, orderNo); err != nil {
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globals.SugarLogger.Debugf("changePrintMsg err :[%v]", err)
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return err
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} else if len(printMsgs) == 0 {
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globals.SugarLogger.Debugf("changePrintMsg err ,not found printMsg printNo:[%v], orderNo :[%v]", printNo, orderNo)
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} else if len(printMsgs) > 0 {
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for _, v := range printMsgs {
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v.Comment = comment
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v.Status = status
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dao.UpdateEntity(db, v, "Comment", "Status")
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}
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}
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return err
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}
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func HandleTcpMessages() {
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var (
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db = dao.GetDB()
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offset, pageSize = 0, 1
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)
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for {
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//一直读？
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prints, _ := dao.GetPrintMsgs(db, []int{printMsgWait}, time.Now().Add(-time.Hour*3), time.Now(), offset, pageSize)
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for _, printMsg := range prints {
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printMsgChan <- printMsg
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printMsg.Status = printMsgAlreadyLoad
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dao.UpdateEntity(db, printMsg, "Status")
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}
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}
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}
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func doPrint2(printMsgChan chan *model.PrintMsg) (err error) {
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var (
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db = dao.GetDB()
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)
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for {
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select {
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case printMsg, _ := <-printMsgChan:
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var (
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data []byte
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c net.Conn
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)
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if printMsg != nil {
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if err = checkPrintMsg(db, printMsg); err == nil {
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tcpClient.s.RLock()
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if tcpClient.Clients[printMsg.PrintNo] != nil {
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if tcpClient.Clients[printMsg.PrintNo].Status == printerStatusOnline {
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if tcpClient.Clients[printMsg.PrintNo].C != nil {
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c = tcpClient.Clients[printMsg.PrintNo].C
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data, err = buildMsg(printMsg)
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}
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} else if tcpClient.Clients[printMsg.PrintNo].Status == printerStatusOffline {
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err = fmt.Errorf("打印机离线！")
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} else if tcpClient.Clients[printMsg.PrintNo].Status == printerStatusOnlineWithoutPaper {
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err = fmt.Errorf("打印机缺纸！")
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}
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}
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tcpClient.s.RUnlock()
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}
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} else {
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err = fmt.Errorf("未查询到此printMsg")
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}
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if err != nil {
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printMsg.Status = printMsgErr
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printMsg.Comment = err.Error()
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dao.UpdateEntity(db, printMsg, "Status", "Comment")
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delete(tcpClient.Clients, printMsg.PrintNo)
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if c != nil {
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c.Close()
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}
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} else {
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if c != nil {
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if _, err = c.Write(data); err != nil {
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globals.SugarLogger.Debugf("handleTcpMessages err [%v]", err)
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delete(tcpClient.Clients, printMsg.PrintNo)
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c.Close()
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} else {
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globals.SugarLogger.Debugf("handleTcpMessages success, data: %v", hex.EncodeToString(data))
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printMsg.Status = printMsgAlreadySend
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dao.UpdateEntity(db, printMsg, "Status", "Comment")
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}
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}
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}
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default:
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select {
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case data, _ := <-printMsgCallbackChan:
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changePrintMsg(data)
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}
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}
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}
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return err
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}
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func HandleCheckTcpHeart() {
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for {
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keys := []string{}
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for k, v := range tcpClient.Clients {
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if time.Now().Sub(v.StatusTime) > time.Minute+time.Second {
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v.Status = printerStatusOffline
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keys = append(keys, k)
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}
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}
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for _, v := range keys {
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changePrinterStatus(v, printerStatusOffline)
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if tcpClient.Clients[v] != nil {
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delete(tcpClient.Clients, v)
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}
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}
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}
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}
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func buildMsg(printMsg *model.PrintMsg) (data []byte, err error) {
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var (
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content = printMsg.Content
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orderNo = printMsg.OrderNo
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str = "1e"
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const1 = "0200ff50"
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printInit = "1b40" //打印机初始化
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//voice = "1d6b401dfd001a01015b7631365d736f756e64622cc4fad3d0d0c2b6a9b5a5c0b1" //语音，中国
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//qr = "1d58021b5a0001061600747470733a2f2f7777772e62616964752e636f6d2f1b000A0A0A1B40"
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orderNoHexH, orderNoHexL, printData string
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)
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//写入数据
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orderNoHexH, orderNoHexL = int2h8l8(int64(orderNo))
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printDataGBK, _ := jxutils.Utf8ToGbk([]byte(replaceContentOther(content)))
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printData = hex.EncodeToString(printDataGBK)
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printData = replaceContent(printData, printMsg)
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lenData := int64(len(str) + len(const1) + len(orderNoHexH) + len(orderNoHexL) + len(printInit) + 2 + 4 + len(printData))
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x1, x2 := int2h8l8(lenData / 2)
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dataStr := str + x1 + x2 + const1 + orderNoHexH + orderNoHexL + printInit + printData
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check := getCheckSum(dataStr)
|
||
return jxutils.Hextob(dataStr + check), err
|
||
}
|
||
|
||
func replaceContentOther(content string) string {
|
||
return strings.ReplaceAll(content, "⃣️", " ")
|
||
}
|
||
|
||
func getCheckSum(str string) (check string) {
|
||
var sum int64
|
||
for i := 0; i < len(str); i = i + 2 {
|
||
b := string(str[i]) + string(str[i+1])
|
||
bt, _ := strconv.ParseInt(b, 16, 32)
|
||
sum += bt
|
||
}
|
||
_, check = int2h8l8(sum)
|
||
return check
|
||
}
|
||
|
||
//内容中的标签替换成指令
|
||
func replaceContent(content string, printMsg *model.PrintMsg) (result string) {
|
||
var (
|
||
lenqr int
|
||
hexLenqr string
|
||
)
|
||
result = content
|
||
for k, v := range signMap {
|
||
if strings.Contains(result, k) {
|
||
result = strings.ReplaceAll(result, k, v)
|
||
}
|
||
}
|
||
if strings.Contains(result, byteSignCenter) && strings.Contains(result, byteSignCenterE) {
|
||
result = strings.ReplaceAll(result, byteSignCenter, hexSignCenter)
|
||
result = strings.ReplaceAll(result, byteSignCenterE, hexSignBROrEXE+hexSignLeft)
|
||
}
|
||
if strings.Contains(result, byteSignLeft) && strings.Contains(result, byteSignLeftE) {
|
||
result = strings.ReplaceAll(result, byteSignLeft, hexSignLeft)
|
||
result = strings.ReplaceAll(result, byteSignLeftE, hexSignBROrEXE+hexSignLeft)
|
||
}
|
||
if strings.Contains(result, byteSignRight) && strings.Contains(result, byteSignRightE) {
|
||
result = strings.ReplaceAll(result, byteSignRight, hexSignRight)
|
||
result = strings.ReplaceAll(result, byteSignRightE, hexSignBROrEXE+hexSignLeft)
|
||
}
|
||
if strings.Contains(result, byteSignBig) && strings.Contains(result, byteSignBigE) {
|
||
result = strings.ReplaceAll(result, byteSignBig, hexSignBig)
|
||
result = strings.ReplaceAll(result, byteSignBigE, hexSignBROrEXE+hexSignNormal)
|
||
}
|
||
if strings.Contains(result, byteSignHighBig) && strings.Contains(result, byteSignHighBigE) {
|
||
result = strings.ReplaceAll(result, byteSignHighBig, hexSignHighBig)
|
||
result = strings.ReplaceAll(result, byteSignHighBigE, hexSignBROrEXE+hexSignNormal)
|
||
}
|
||
if strings.Contains(result, byteSignWideBig) && strings.Contains(result, byteSignWideBigE) {
|
||
result = strings.ReplaceAll(result, byteSignWideBig, hexSignWideBig)
|
||
result = strings.ReplaceAll(result, byteSignWideBigE, hexSignBROrEXE+hexSignNormal)
|
||
}
|
||
if strings.Contains(result, byteSignQrCenter) && strings.Contains(result, byteSignQrCenterE) {
|
||
if qrs := regexpQrc.FindStringSubmatch(result); len(qrs) > 0 {
|
||
lenqr = len(qrs[1]) / 2
|
||
hexLenqr = fmt.Sprintf("%x", lenqr)
|
||
if len(hexLenqr) < 2 {
|
||
hexLenqr = "0" + hexLenqr
|
||
}
|
||
}
|
||
result = strings.ReplaceAll(result, byteSignQrCenter, hexSignQrCenter+hexSignQr+hexLenqr+"00")
|
||
result = strings.ReplaceAll(result, byteSignQrCenterE, hexSignQrEnd)
|
||
}
|
||
if strings.Contains(result, byteSignQrLeft) && strings.Contains(result, byteSignQrLeftE) {
|
||
if qrs := regexpQrl.FindStringSubmatch(result); len(qrs) > 0 {
|
||
lenqr = len(qrs[1]) / 2
|
||
hexLenqr = fmt.Sprintf("%x", lenqr)
|
||
if len(hexLenqr) < 2 {
|
||
hexLenqr = "0" + hexLenqr
|
||
}
|
||
}
|
||
result = strings.ReplaceAll(result, byteSignQrLeft, hexSignQrLeft+hexSignQr+hexLenqr+"00")
|
||
result = strings.ReplaceAll(result, byteSignQrLeftE, hexSignQrEnd)
|
||
}
|
||
if strings.Contains(result, byteSignQrRight) && strings.Contains(result, byteSignQrRightE) {
|
||
if qrs := regexpQrr.FindStringSubmatch(result); len(qrs) > 0 {
|
||
lenqr = len(qrs[1])
|
||
hexLenqr = fmt.Sprintf("%x", lenqr)
|
||
if len(hexLenqr) < 2 {
|
||
hexLenqr = "0" + hexLenqr
|
||
}
|
||
}
|
||
result = strings.ReplaceAll(result, byteSignQrRight, hexSignQrRight+hexSignQr+hexLenqr+"00")
|
||
result = strings.ReplaceAll(result, byteSignQrRightE, hexSignQrEnd)
|
||
}
|
||
if strings.Contains(result, byteSignSound) && strings.Contains(result, byteSignSoundE) {
|
||
if sounds := regexpSound.FindStringSubmatch(result); len(sounds) > 0 {
|
||
sound := sounds[1]
|
||
if printer, _ := dao.GetPrinter(dao.GetDB(), printMsg.PrintNo); printer != nil {
|
||
//先把结束标签消了
|
||
result = strings.ReplaceAll(result, byteSignSoundE, "")
|
||
//fd 固定
|
||
//001a (声音数据长度高八位低八位)
|
||
//0101 固定
|
||
soundPrefix := ""
|
||
if printer.Sound != "" {
|
||
soundPrefix = "[v" + utils.Int2Str(printer.Volume*2) + "]" + printer.Sound
|
||
} else {
|
||
soundPrefix = "[v" + utils.Int2Str(printer.Volume*2) + "]"
|
||
}
|
||
hexPrefix, _ := jxutils.Utf8ToGbk([]byte(soundPrefix))
|
||
hexPrefixStr := hex.EncodeToString(hexPrefix)
|
||
realSound := hexPrefixStr + sound
|
||
allLen := fmt.Sprintf("%x", (len("fd001a0101")+len(realSound))/2)
|
||
if len(allLen) < 2 {
|
||
allLen = "0" + allLen
|
||
}
|
||
soundLenH, soundLenX := int2h8l8(int64((len(realSound) + len("0101")) / 2))
|
||
result = strings.ReplaceAll(result, byteSignSound, hexSignSound+allLen+"fd"+soundLenH+soundLenX+"0100"+hexPrefixStr)
|
||
}
|
||
}
|
||
}
|
||
return result
|
||
}
|
||
|
||
func checkPrintMsg(db *dao.DaoDB, printMsg *model.PrintMsg) (err error) {
|
||
if printMsg.Content == "" {
|
||
return fmt.Errorf("此打印信息内容为空！printMsg printNo:[%v], orderNo :[%v]", printMsg.PrintNo, printMsg.OrderNo)
|
||
}
|
||
if printMsg.PrintNo == "" {
|
||
return fmt.Errorf("此打印信息打印机编号为空！printMsg printNo:[%v], orderNo :[%v]", printMsg.PrintNo, printMsg.OrderNo)
|
||
}
|
||
if printMsg.OrderNo == 0 {
|
||
return fmt.Errorf("此打印信息订单序号为空！printMsg printNo:[%v], orderNo :[%v]", printMsg.PrintNo, printMsg.OrderNo)
|
||
}
|
||
if printer, err := dao.GetPrinter(db, printMsg.PrintNo); err == nil {
|
||
if printer != nil {
|
||
if printer.FlowFlag == 1 {
|
||
return fmt.Errorf("此打印机当月流量已用完，请及时充值！printNo:[%v]", printMsg.PrintNo)
|
||
}
|
||
}
|
||
}
|
||
return err
|
||
}
|
||
|
||
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
|
||
}
|
||
|
||
func h8l82int(h, l string) (i int64) {
|
||
s1, s2 := xtob(h), xtob(l)
|
||
flag1 := 8 - len(s1)
|
||
flag2 := 8 - len(s2)
|
||
for m := 0; m < flag1; m++ {
|
||
s1 = "0" + s1
|
||
}
|
||
for j := 0; j < flag2; j++ {
|
||
s2 = "0" + s2
|
||
}
|
||
i, _ = strconv.ParseInt(s1+s2, 2, 10)
|
||
return i
|
||
}
|
||
|
||
func xtob(x string) string {
|
||
base, _ := strconv.ParseInt(x, 16, 10)
|
||
return strconv.FormatInt(base, 2)
|
||
}
|