小程序开发怎么实现视频上传功能

 <view class="page-body-info">
      <block wx:if="{{src === ''}}">
        <view class="image-plus image-plus-nb" bindtap="chooseVideo">
          <view class="image-plus-horizontal"></view>
          <view class="image-plus-vertical"></view>
        </view>
        <view class="image-plus-text">添加视频</view>
      </block>
      <block wx:if="{{src != ''}}">
        <video src="{{src}}" class="video"></video>
      </block>
    </view>

Page({
  data: {
    src: ''
  },
 //选择视频
  chooseVideo: function() {
    var that = this
    wx.chooseVideo({
      success: function(res) {
        that.setData({
          src: res.tempFilePath,
        })
      }
    })
  },
  //上传视频 目前后台限制最大100M，以后如果视频太大可以在选择视频的时候进行压缩
  uploadvideo: function() {
    var src = this.data.src;
    wx.uploadFile({
      url: 'http://172.16.98.36:8080/upanddown/upload2',//服务器接口
      method: 'POST',//这句话好像可以不用
      filePath: src,
      header: {
        'content-type': 'multipart/form-data'
      },
      name: 'files',//服务器定义的Key值
      success: function() {
        console.log('视频上传成功')
      },
      fail: function() {
        console.log('接口调用失败')
      }
    })
  }
})