1.BUG 产生及描述

页面点击录音调听按钮，ajax请求后端，后端请求原厂商服务器B拿到文件地址https://xxx.wav 返回给前端，拖拽进度条不好使。

<audio :src="src" controls="controls" ref="audio" class="audio"></audio>

2.解决方法

网上很多说法譬如:
https://blog.csdn.net/weixin_43616097/article/details/106342909，(后端设置响应头)(https://blog.csdn.net/weixin_43616097/article/details/106342909 (前端nginx添加响应头配置)
我的做法其实就是用ajax 重新请求一下设置responseType: 'blob',然后生成一个blob对象window.URL.createObjectURL 就好使了。
这里给音频播放器轻微的封装了一下，通过vux变量来控制展示(由于层级太多)（vue文件）

2.1 主文件

  <el-table-column prop="callUuid" label="操作" width="60" header-align="center">
    <template slot-scope="{ row }">
      <el-button size="mini" type="text" @click="recoding(row)">调听</el-button>
    </template>
  </el-table-column>

  import { mapMutations } from 'vuex'
  methods: {
   ...mapMutations(['setIsAudio']),
   function recoding (row) {
      // 调用接口返回音频地址
      this.setIsAudio(false) // 设置vux
      let url = 'yyy?id=' // 后端地址
      this.axios.get(url + row.id).then(data => {
        if (data) {
          this.setIsAudio(data)
        } else {
          this.$message({ message: '未找到录音!', type: 'error' })
        }
      })
    }
  }

2.2 音频组件

<template>
  <div v-show="isShow" class="video-dialog" v-drag="drag">
    <audio :src="audioFile" controls="controls" ref="audio" class="audio"></audio>
    <div class="btn">
      <div class="close-area" @click="close">
        <i class="el-icon-close"></i>
      </div>
      <div class="drag-area" @mousedown="enableDrag" @mouseleave="disableDrag">
        <i class="el-icon-rank"></i>
      </div>
    </div>
  </div>
</template>

<script>
import {mapState} from 'vuex'
export default {
  name: 'VideoCall',
  data () {
    return {
      drag: false,
      isShow: false,
      audioFile: ''
    }
  },
  computed: {
    ...mapState(['isAudio'])
  },
  watch: {
    isAudio: {
      handler (val) {
        if (val) {
          this.showDialog(val)
        } else {
          this.audioFile = ''
        }
      },
      deep: true
    }
  },
  methods: {
    async showDialog (val) {
      const v = await this.getVideoData(val)
      if (v === true) {
        this.isShow = true
      } else {
        this.audioFile = ''
      }
    },
    getVideoData (val) {
      return new Promise((resolve, reject) => {
        this.axios({
          method: 'get',
          responseType: 'blob',
          url: val
        }).then((res) => {
          console.log('111111111111111', res)
          this.audioFile = window.URL.createObjectURL(res.data)
          resolve(true)
        })
      })
    },
    close () {
      this.isShow = false
      this.audioFile = ''
    },
    enableDrag () {
      this.drag = true
    },
    disableDrag () {
      this.drag = false
    }
  }
}

.video-dialog {
  position: fixed;
  width: 400px;
  height: 50px;
  border-radius: 30px;
  box-shadow: 0px 3px 5px 0px #adadad;
  z-index: 2000;
  background-color: #f0f2f3;
  top: 78px;
  right: 20px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  .audio{
    width: 300px;
    height: 54px;
  }
  .btn{
    width: 40px;
    border-left: 1px dotted #1764ce;
    font-size: 20px;
    color: #1764ce;
    line-height: 20px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    padding-left: 5px;
    .close-area{
      cursor: pointer;
    }
    .drag-area {
      cursor: move;
    }
  }