微信小程序如何从数据库加载数据

  public function getdownList(){    $data=M('Material')->field('id,title,path,date,down,description,view')->order('date desc')->limit(6)->select();    echo json_encode($data);  }

/**   * 生命周期函数--监听页面加载   */  onLoad: function () {    console.log('onLoad')    var that = this    wx.request({      url: 'https://www.100txy.com/weixin/getdownlist', //真实的接口地址      data: {},      header: {        'content-type': 'application/json'      },      success: function (res) {         console.log(res.data)        that.setData({            Industry: res.data //设置数据        })        },      fail: function (err) {        console.log(err)      }    })  },

<view>   <block>    <view>      <view>        <image></image>      </view>      <view>        <text>{{item.title}}</text>        <text>{{item.description}}</text><text>浏览 {{item.view}}  下载 {{item.down}}</text>      </view>      </view>    <view></view>   </block></view>