update

src/views/education/MaterialWarehousingMoudle.vue

@@ -102,6 +102,9 @@ export default {
       typeV: '',
     }
   },
+  mounted() {
+    this.scanGunCode()
+  },
   methods: {
     handleSelectionChange (val) {
       this.checkList = val
@@ -114,6 +117,96 @@ export default {
           this.tableData = this.AllTableData.slice((num-1)*this.pageSize + 1,this.pageSize*num)
         }
     },
+    // 扫码枪扫码
+    scanGunCode() {
+      let barCode = ''
+      let lastTime, nextTime
+      let lastCode, nextCode
+      window.document.onkeypress = e => {
+        if (this.loading) {
+          // 防止高频率扫码，只能扫一次
+          return
+        }
+        if (window.event) {
+          // IE
+          nextCode = e.keyCode
+        } else if (e.which) {
+          // Netscape/Firefox/Opera
+          nextCode = e.which
+        }
+        if (e.which === 13) {
+          if (barCode.length < 3) return // 手动输入的时间不会让code的长度大于2，所以这里只会对扫码枪有
+          console.log(barCode)
+          console.log('扫码结束')
+          // this.loading = true
+          const cacheCode = barCode
+          // request({
+          //   url: `/returnOrder/scanCodeForReturnOrder/${this.$route.query.id}`,
+          //   method: 'put',
+          //   data: {
+          //     barcode: cacheCode
+          //   }
+          // })
+          //   .then(res => {
+          //     this.loading = false
+          //     if (res.data.code === 200) {
+          //       if (res.data.data.returnInfo.length === 1) {
+          //         // 只有一个商品直接更新数量
+          //         const data = res.data.data.returnInfo[0]
+          //         request({
+          //           url: `/returnOrder/returnOrderGoods/${data.id}`,
+          //           method: 'put',
+          //           data: {
+          //             ...data,
+          //             realNum: data.realNum + 1,
+          //             code: cacheCode
+          //           }
+          //         }).then(res => {
+          //           if (res.data.code === 200) {
+          //             this.$message.success('扫描成功')
+          //             this.print(data.id)
+          //             this.getDetails(true)
+          //           }
+          //         })
+          //       } else if (res.data.data.returnInfo.length >= 2) {
+          //         // 多个商品弹窗
+          //         this.editModal = {
+          //           loading: false,
+          //           type: 12,
+          //           show: true,
+          //           editData: res.data.data,
+          //           code: cacheCode
+          //         }
+          //       }
+          //     }
+          //   })
+          //   .catch(() => {
+          //     this.loading = false
+          //   })
+          barCode = ''
+          lastCode = ''
+          lastTime = ''
+          return
+        }
+        nextTime = new Date().getTime()
+        if (!lastTime && !lastCode) {
+          console.log('扫码开始。。。')
+          barCode += e.key
+        }
+
+        if (lastCode && lastTime && nextTime - lastTime > 500) {
+          // 当扫码前有keypress事件时,防止首字缺失
+          console.log('防止首字缺失。。。')
+          barCode = e.key
+        } else if (lastCode && lastTime) {
+          console.log('扫码中。。。')
+          barCode += e.key
+        }
+        lastCode = nextCode
+        lastTime = nextTime
+        console.log(lastCode)
+      }
+    },
     delData () {
       if (this.checkList.length === 0) {
         this.deleteShow = true