element ui el-upload文件上传失败后，也进入到了文件列表，这里的逻辑是不对的，上传失败后，文件不应该存在在文件列表。

<el-upload
    action="/rs/business/applyFile/uploadFile"
    :show-file-list="true"
    :with-credentials="true"
    :on-success="accessToFile"
    :on-remove="onRemove"
    :file-list="fileList"
    :data="{id:item.id}"
    name="file">
    <div class="uploadFile">
      <div class="uploadFilel">
        <span style="color: red" v-if="item.isMust==1">*</span>
        {{ item.proveFileName }}
      </div>
      <div class="uploadFiler">
        <i class="el-icon-upload2"></i>
        <span>上传文件</span>
      </div>
    </div>
  </el-upload>

上传成功处理

accessToFile(e, file, fileList) {
  var that = this
  console.log(e)
  if (e.code == 1) {
    that.$message({
      message: '上传成功',
      type: 'success'
    })
    that.fileLists = fileList
  } else {
    //删除上传列表中，失败的文件
    let index = 0;
    for (const i in fileList) {
      if (fileList[i] == file) {
        index = i;
        break;
      }
    }
    //移出当前文件对象
    fileList.splice(index, 1);
    that.$message.error(e.message);
  }
},