浅析AntdV Upload组件customRequest怎么自定义上传方法

<a-form-item
  :labelCol="labelCol"
  :wrapperCol="wrapperCol"
  label="照片">
  <a-upload
    v-decorator="['zp', validatorRules.zp]"
    listType="picture-card"
    class="avatar-uploader"
    :showUploadList="false"
    :beforeUpload="beforeUpload"
    :customRequest="selfUpload"
  >
    <img v-if="picUrl" :src="getAvatarView()" alt="头像" style="height:104px;max-width:300px"/>
    <div v-else>
      <a-icon :type="uploadLoading ? 'loading' : 'plus'" />
      <div class="ant-upload-text">上传</div>
    </div>
  </a-upload>

</a-form-item>

//对上传的文件处理
selfUpload ({ action, file, onSuccess, onError, onProgress }) {
     console.log(file, 'action, file');
     const base64 = new Promise(resolve => {
         const fileReader = new FileReader();
         fileReader.readAsDataURL(file);
         fileReader.onload = () => {
              resolve(fileReader.result);
              // this.formImg = fileReader.result;
          }
      });
}