小程序-腾讯人脸识别接口调用（人脸检测与分析）

index.js

bindFace: function() {
    let that = this;
    let timestamp = Date.parse(new Date());
    timestamp = timestamp / 1000;
    // console.log("当前时间戳为：" + timestamp);
    that.wecropper.getCropperImage((src) => {
      if (src) {
        wx.getFileSystemManager().readFile({
          filePath: src, //选择图片返回的相对路径
          encoding: 'base64', //编码格式
          success: res => { //成功的回调
            that.setData({
              // userImageBase64: 'data:image/png;base64,' + res.data,
              noHeadImageBase64: res.data,
              
            })
          },
          complete:res=>{
            if (that.data.noHeadImageBase64) {
              wx.showLoading({
                title: '识别中',
                mask: true
              });
              let urlBase64 = encodeURIComponent(that.data.noHeadImageBase64);
              let facedata = {
                app_id: 'xxxxxx',
                image: that.data.noHeadImageBase64,
                mode: '0',
                nonce_str: 'zzzzz',
                time_stamp: timestamp,
                app_key: 'aaaaaa'
              }
              let facedata2 = JSON.stringify(facedata);
              let list = 'app_id=xxxxx&image=' + urlBase64 + '&mode=0' + '&nonce_str=zzzzz&time_stamp=' + timestamp + '&app_key=aaaaaa';
              let encrypted = md5(list);
              let encryptedUpper = encrypted.toUpperCase();
              let finalfacedata = {
                app_id: 'xxxxxx',
                time_stamp: timestamp,
                nonce_str: 'zzzzz',
                image: that.data.noHeadImageBase64,
                mode: '0',
                sign: encryptedUpper,
                app_key: 'aaaaaa'
              }
              let finalfacedata2 = JSON.stringify(finalfacedata)
              wx.request({
                url: 'https://api.ai.qq.com/fcgi-bin/face/face_detectface',
                dataType: 'json',
                method: 'POST',
                header: {
                  'content-type': 'application/x-www-form-urlencoded'
                },
                data: finalfacedata,
                success: function (res) {
                  wx.hideLoading();
                  if (res.data.ret == 0) {
                    //成功
                  } else {
                    wx.showModal({
                      title: '提示',
                      content: '识别失败',
                      showCancel: false
                    })
                  }
                },
              })
            }
          }
        })
      }
      else
      wx.showModal({
        title: '提示',
        content: '请上传图片',
        showCancel: false
      })
    });
  },
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