vue-upload-component post请求没有发出？

Question

<file-upload
    class="btn btn-primary dropdown-toggle"
    :headers="{'Content-Type':'multipart/form-data'}"
    :post-action="postAction"
    :extensions="extensions"
    :accept="accept"
    :multiple="multiple"
    :directory="directory"
    :data="{parentId:parentId}"
    :size="size || 0"
    :thread="thread < 1 ? 1 : (thread > 5 ? 5 : thread)"
    :add-index="addIndex"
    v-model="files"
    @input-filter="inputFilter"
    @input-file="inputFile"
    ref="upload">
    <i class="icon iconfont icon-shangchuan"></i>
    上传文件
</file-upload>

相应的 vue 配置见下

      accept: '*',
      extensions: '*',
      minSize: 1024,
      size: 1024 * 1024 * 10,
      multiple: true,
      directory: false,
      addIndex: false,
      thread: 3,
      name: 'file',
      postAction: 'http://10.154.1.1:8080/api/v1/file/upload',

点击上传后，没有向后台发出请求，一直没有找到原因
求各位大佬指点下