vue 使用elementui上传文件到后台

     <el-upload
          class="upload-demo"
          ref="upload"
          action="http://192.168.1.4:8082/fanliorder/dealEleOrder/"
          :on-preview="handlePreview"
          :on-remove="handleRemove"
          :on-success="handleSuccess"
          :file-list="fileList"
          :multiple="false"
          :limit="1"
          :auto-upload="false">
        <el-button slot="trigger" size="small" type="primary">选取文件</el-button>
        <el-button style="margin-left: 10px;" size="small" type="success" @click="submitUpload($event)">上传到服务器</el-button>
        <div slot="tip" class="el-upload__tip">只能上传execl文件，且不超过500kb</div>
      </el-upload>

fileList: [],

// 成功上传到服务器后返回的内容
    handleSuccess(e) {
      console.log(‘上传成功，能哪都澳门吗‘, e)
      this.$message(e.message);
    },
    // 上传文件到服务器
    submitUpload(e) {
      console.log(‘我要上传了‘, e)
      this.$refs.upload.submit();

    },
    // 删除文件
    handleRemove(file, fileList) {
      console.log(file, fileList);
    },
    handlePreview(file) {
      console.log(file);
    },