小程序调用百度云接口实现人脸识别

<view class="c1">    <view class="c1-1">           </view>    <button type="primary" size="mini" bindtap="chooseImage">选择图片</button>    <view class="c1-2">      <image src="{{img}}" mode="widthFix"></image>          <text>颜值：{{face.beauty}}</text>       <text>年龄：{{face.age}}</text>       <text>性别：{{face.gender.type}}</text>       <text>情绪：{{face.emotion.type}}</text>    </view></view>

.c1{  padding: 50rpx;}.c1-1{  height: 800rpx;  margin-bottom: 20rpx;  display: flex;  justify-content: center;  font-size: 30rpx;  box-shadow: 0px 0px 10px gray;}.c1-2{}

//获取app.js对象var app = getApp();Page({  data: {face: {},//检测结果img: '',  //选择的图片showResult: false //检测是由有结果  },  onLoad: function (options) {//console.log('获取全局变量数据：' + app.globalData.access_token);  },  //选择图片事件  chooseImage(){  var that = this;  wx.chooseImage({    count: 1,    sizeType: ['original', 'compressed'],    sourceType: ['album', 'camera'],    success (res) {      const tempPath = res.tempFilePaths[0];//获取选择的图片的地址	  //准备好了access_token和图片后，就可以开始请求百度的人脸检测接口了https://aip.baidubce.com/rest/2.0/face/v3/detect	  //该接口需要的参数是access_token，图片的base64值	  //图片的base64值的处理	  var base64 = wx.getFileSystemManager().readFileSync(tempPath,'base64');	  //提示	  wx.showLoading({		  title: '人脸检测中...',		  mask: true	  });	  //开始请求百度的人脸检测接口	  wx.request({	    url: 'https://aip.baidubce.com/rest/2.0/face/v3/detect?access_token='+app.globalData.access_token,      	    data: {	    image: base64,		  image_type: 'BASE64',		 face_field: 'age,beauty,expression,face_shape,gender,glasses,race,emotion'	    face_field: 'name, kind'        },		method: 'POST',	    header: {'content-type': 'application/json'},	    //header: {'content-type': 'application/x-www-form-urlencoded'},        success (res) {			console.log(res);			if(res.statusCode == 200 && res.data.error_code == 0){ //检测结果正确//将选择的图片回显到页面//that.setData({img: tempPath});          that.setData();          //植物识别要传入键值对//取出检测的结果进行页面显示var face = res.data.result.face_list[0];          console.log(face);that.setData({face: face,showResult: true});//隐藏加载窗口wx.hideLoading();			}else{wx.showToast({	title: '检测失败'+res.data.error_msg,	duration: 5000});			}	    }	  })    }  })  },    /**   * 用户点击右上角分享   */  onShareAppMessage: function () {  }})

//app.jsApp({  onLaunch: function () {    var access_token = wx.getStorageSync('access_token');    var expire_in = wx.getStorageSync('expire_in');   // var access_token = parse;    var access_token_date = parseInt(wx.getStorageSync('access_token_date'));    var now = new Date().getTime();    if(!access_token){      this.requestToken();    } else if(now > access_token_date + expire_in){      this.requestToken();    }else{    }      // 展示本地存储能力    var logs = wx.getStorageSync('logs') || []    logs.unshift(Date.now())    wx.setStorageSync('logs', logs)    // 登录    wx.login({      success: res => {        // 发送 res.code 到后台换取 openId, sessionKey, unionId      }    })    // 获取用户信息    wx.getSetting({      success: res => {        if (res.authSetting['scope.userInfo']) {          // 已经授权，可以直接调用 getUserInfo 获取头像昵称，不会弹框          wx.getUserInfo({            success: res => {              // 可以将 res 发送给后台解码出 unionId              this.globalData.userInfo = res.userInfo              // 由于 getUserInfo 是网络请求，可能会在 Page.onLoad 之后才返回              // 所以此处加入 callback 以防止这种情况              if (this.userInfoReadyCallback) {                this.userInfoReadyCallback(res)              }            }          })        }      }    })      },  globalData: {    userInfo: null  },  requestToken() {    var that = this;    wx.request({      url: 'https://aip.baidubce.com/oauth/2.0/token',      data: {        grant_type: 'client_credentials',        // aaa那里填写自己的百度key值        client_id: 'aaa',        client_secret: 'aaa'      },      //header: {'content-type': 'application/json'},      header: {'content-type': 'application/x-www-form-urlencoded'},      success (res) {        if(res.statusCode == 200){          wx.setStorageSync("access_token", res.data.access_token);          wx.setStorageSync("expires_in", res.data.expires_in);          //wx.setStorageSync("access_token_date", res.data.access_token_date);          wx.setStorageSync("access_token_date", new Date().getTime());          that.globalData.access_token = res.data.access_token;        }      }    })  }})