在使用Ant Design Vue 的Upload组件做上传功能的时候，踩了不少坑，今天稍微整理一下。文档地址：https://www.antdv.com/components/upload-cn/

一、主要用到的upload组件的几个属性如下

• file-list ：定义已上传文件列表
• multiple：定义允许上传多个文件
• customRequest：自定义上传方法
• remove：自定义点击移除文件按钮的回调

二、代码

<template>
  <div class="upload-modal-content">
    <a-upload
      :file-list="uploadedFileList"
      :multiple="true"
      :customRequest="uploadFiles"
      :remove="deleteFileItem"
    >
      <a-button> <a-icon type="upload" /> 上传文件 </a-button>
    </a-upload>
  </div>
</template>

<script>
import axios from "axios";
export default {
  name: "upload.test",
  data() {
    return {
      //已经上传的文件列表
      uploadedFileList: [],
    };
  },
  methods: {
    /******************上传文件方法******************/
    async uploadFiles(info) {
      //初始化文件信息
      const fileInfo = {
        uid: info.file.uid,
        name: info.file.name,
        status: "uploading",
        response: "",
        url: "",
      };
      //放入上传列表中，以便于显示上传进度
      this.uploadedFileList.push(fileInfo);
      //开始真正上传
      //上传接口
      let uploadApiUrl = "http://localhost/test.php";
      //调用公共上传方法
      const res = await this.uploadFilesToServer(
        uploadApiUrl,
        "files[]",
        info.file
      );
      //根据服务端返回的结果判断成功与否，设置文件条目的状态
      if (ret.code === "0") {
        fileInfo.status = "done";
        fileInfo.response = res.msg;
        fileInfo.url = res.data[0].file;
        this.$message.success("上传成功！");
      } else {
        fileInfo.status = "error";
        fileInfo.response = res.msg;
        this.$message.error("上传失败！");
      }
    },
    /******************删除文件记录条目******************/
    deleteFileItem(file) {
      //找到当前文件所在列表的索引
      let index = this.uploadedFileList.indexOf(file);
      //从列表中移除该文件
      this.uploadedFileList.splice(index, 1);
      return true;
    },
    /******************上传文件公共方法******************/
    uploadFilesToServer(uploadApiUrl, fileName, files) {
      let formData = new FormData();
      formData.append(fileName, files);
      //添加请求头
      const headers = {
        "Content-Type": "multipart/form-data",
      };
      //配置头
      const request = axios.create({
        headers: headers,
      });
      //开始上传
      return request
        .post(uploadApiUrl, formData)
        .then((response) => {
          return Promise.resolve(response.data);
        })
        .catch((error) => {
          return Promise.reject(error);
        });
    },
  },
};
</script>

<style lang="scss" scoped>
</style>

三、效果图

上传演示