yiliangyiyun-pc-jj/src/components/balanceAlert.vue

<template>
  <div class="content">
    <div class="title" v-if="information.indexOf('毛重') > -1">毛重</div>
    <div class="title" v-else>皮重</div>
    <div class="number" v-if="information.indexOf('毛重') > -1">{{grossWeightVal}} kg</div>
    <div class="number" v-else>{{tareVal}} KG</div>
    
    <div class="btn" @click="sendVal">确定</div>
  </div>
</template>

<script>

export default {
  name: 'balanceAlert',
  props: ['deptBudgetList', 'information'],
  data () {
    return {
     param: 9600,
     grossWeightVal:'',
     tareVal:''
    }
  },
  activated(){
   
  },
  mounted(){
 console.log('11111111111111111111111111111111111')
    console.log(this.deptBudgetList)
    this.openPort()
  },
  computed: {
    
  },
  created () {
    
  },
  methods: {
    sendVal(){
      console.log(this.grossWeightVal)
       console.log(this.tareVal)
      if(this.information.indexOf('毛重') > -1){
        this.$emit('balanceListen',this.grossWeightVal)
      }else{
        this.$emit('balanceListen',this.tareVal)
      }
      
    },
   async closePort() {
      console.log('closePort')
      this.reader.cancel()
    },
     async openPort() {
      console.log('openPort', navigator)
        if ('serial' in navigator) {
          if (!this.$store.state.app.reader) {
            // The Web Serial API is supported.
            console.log('the Web Serial API is supported.')
            console.log(this.param)
            const port = await navigator.serial.requestPort()
            await port.open({
              baudRate: this.param,
            }) // set baud rate
            this.reader = port.readable.getReader()
            console.log('beforeReader', port)
            console.log('beforeReader', this.reader)
            this.$store.dispatch('app/setReader', this.reader)
          } else {
            console.log('afterport', this.$store.state.app.reader)
            this.reader = this.$store.state.app.reader
          }
        // 监听来自串行设备的数据
        while (true) {
          const { value, done } = await this.reader.read()
          // console.log("value",value);
          if (done) {
            // 允许稍后关闭串口。
            this.reader.releaseLock()
            break
          }
          var result = ''
          //2。获取16进制字符串
          // var receData = HexConvert.ByteToString(value);
          // console.log("receData",receData);
          var flag = false
          var flag1 = false
          // for (var i = 0; i < value.length; i++) {
          //   var tmp = String.fromCharCode(value[i])
          //   if (tmp == '+') {
          //     flag = true
          //   }
          //   if (flag && result.length < 6 && tmp != '+') {
          //     result += tmp
          //   }
          // }
          // if (this.information != '毛重检斤') {
          //   if(parseInt(result)){
          //     this.deptBudgetList.grossWeight = parseInt(result)
          //   }
          // } else {
          //   if(parseInt(result)){
          //     this.deptBudgetList.tare = parseInt(result)
          //   }
          // }
          console.log('value:', value)
          if (
            this.deptBudgetList.warehouseName &&
            (this.deptBudgetList.warehouseName == '山东诸城迈饶库' ||
              this.deptBudgetList.warehouseName == '克东千红库' ||
              this.deptBudgetList.warehouseName == '鲅鱼圈祥腾库' ||
              this.deptBudgetList.warehouseName == '哈尔滨依兰库'||
              this.deptBudgetList.warehouseName == '龙江金信库')
          ) {
            for (var i = 0; i < value.length; i++) {
              var tmp = String.fromCharCode(value[i])
              if (tmp == '+') {
                flag = true
              }
              if (flag && result.length < 6 && tmp != '+') {
                result += tmp
              }
            }
            if (this.information.indexOf('毛重') > -1) {
              if (parseInt(result) || parseInt(result) == 0) {
                this.grossWeightVal = parseInt(result)
              }
            } else {
              if (parseInt(result) || parseInt(result) == 0) {
                this.tareVal = parseInt(result)
              }
            }
          } else if (
            this.deptBudgetList.warehouseName &&
            (this.deptBudgetList.warehouseName == '顺诚粮库' ||
              this.deptBudgetList.warehouseName == '鲅鱼圈金信库')
          ) {
            for (var i = value.length - 1; i >= 0; i--) {
              var tmp = String.fromCharCode(value[i])
              console.log(tmp)
              if (String.fromCharCode(value[0]) == '.') {
                flag = true
              }
              if (flag && result.length < 9 && tmp != '=' && tmp != '.') {
                result += tmp
              }
            }
            if (this.information.indexOf('毛重') > -1) {
              if (parseInt(result) || parseInt(result) == 0) {
                this.grossWeightVal = parseInt(result)
              }
            } else {
              if (parseInt(result) || parseInt(result) == 0) {
                this.tareVal = parseInt(result)
              }
            }
          } else {
            for (var i = 0; i < value.length; i++) {
              var tmp = String.fromCharCode(value[i])

              if (value[0] != 49 && value[0] != 2) {
                if (
                  value[value.length - 1] == 48 &&
                  value[value.length - 2] == 48
                ) {
                  flag1 = true
                } else {
                  break
                }
              }
              if (tmp == String.fromCharCode(32)) {
                flag = true
              }
              if (
                flag &&
                result.length < 7 &&
                tmp != String.fromCharCode(32) &&
                !(
                  value[value.length - 1] == 48 && value[value.length - 2] == 48
                )
              ) {
                result += tmp
              }
              if (flag1 && tmp != String.fromCharCode(32)) {
                if (
                  value[value.length - 1] == 48 &&
                  value[value.length - 2] == 48
                ) {
                  if (i == 0) {
                    this.result1 = tmp + '0'
                  }
                }
              }
            }
            if (this.information.indexOf('毛重') > -1) {
              if (parseInt(result) || parseInt(result) == 0) {
                this.grossWeightVal = parseInt(
                  result + this.result1
                )
              }
            } else {
              if (parseInt(result) || parseInt(result) == 0) {
                this.tareVal = parseInt(result + this.result1)
              }
            }
          }
          // setTimeout(1000)
          // value 是一个 Uint8Array
        }
        await port.close()
      } else {
        console.log('the Web Serial API is not supported.', navigator)
      }
    },
  }
}
</script>

<style lang="scss" scoped>
  .content{
    background: black;
    color: #2AFF7C;
    font-size: 32px;
    text-align: right;
    padding: 20px;
    border-radius: 10px;
    margin: 0 20px 20px 20px;
  }
  .title{
    text-align: center;
  }
  .number{
    // font-size: 60px;
  }
  .btn{
    border: 1px solid #2aff7c;
        width: 50%;
    // margin: 30px auto;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
  }
</style>