<!-- camera.wxml相機(jī)大小需要從重新設(shè)置 -->
<camera
 device-position="front"
 flash="off"
 binderror="error"
 style="width: 100%; height: 400px;"
></camera>

<!-- 需要使用 button 來(lái)授權(quán)登錄 -->
<button
 wx:if="{{canIUse}}"
 open-type="getUserInfo"
 bindgetuserinfo="bindGetUserInfo"
 type="primary"
>
 授權(quán)
</button>
<view wx:else>請(qǐng)升級(jí)微信版本</view>

<!-- 拍照按鈕 -->
<button type="primary" bindtap="takePhoto"> 拍照 </button>

<button bindtap='btnreg'> 注冊(cè)須知 </button>

// camera.js
const app = getApp()
Page({
 data: {
  canIUse: wx.canIUse('button.open-type.getUserInfo'),
  nickName : "",
  src : "",//圖片的鏈接
  token: "",
  base64: "",
  msg:""
 },

 //拍照
 takePhoto() {
  var that = this;
  //拍照
  const ctx = wx.createCameraContext()
  ctx.takePhoto({
   quality: 'high',
   success: (res) => {
    this.setData({
     src: res.tempImagePath//獲取圖片
    })

    //圖片base64編碼
    wx.getFileSystemManager().readFile({
     filePath: this.data.src, //選擇圖片返回的相對(duì)路徑
     encoding: 'base64', //編碼格式
     success: res => { //成功的回調(diào)
      this.setData({
       base64: res.data
      })
     }
    })
   }//拍照成功結(jié)束

  })//調(diào)用相機(jī)結(jié)束

   //acess_token獲取,qs:需要多次嘗試
   wx.request({
    url: 'https://aip.baidubce.com/oauth/2.0/token', //是真實(shí)的接口地址
    data: {
     grant_type: 'client_credentials',
     client_id: '**********************',//用你創(chuàng)建的應(yīng)用的API Key
     client_secret: '************************'//用你創(chuàng)建的應(yīng)用的Secret Key
    },
    header: {
     'Content-Type': 'application/json' // 默認(rèn)值
    },
    success(res) {
     that.setData({
      token: res.data.access_token//獲取到token
     })
    }
   })
   
   //上傳人臉進(jìn)行注冊(cè)-----test
   wx.request({
    url: 'https://aip.baidubce.com/rest/2.0/face/v3/faceset/user/add?access_token=' + this.data.token,
    method: 'POST',
    data: {
     image: this.data.base64,
     image_type: 'BASE64',
     group_id: '********',//自己建的用戶組id
     user_id: this.data.nickName//這里獲取用戶昵稱(chēng)
    },
    header: {
     'Content-Type': 'application/json' // 默認(rèn)值
    },
    success(res) {
     that.setData({
      msg: res.data.error_msg
     })
     console.log(that.data.msg)
     //做成功判斷
     if (that.data.msg == 'SUCCESS') {//微信js字符串請(qǐng)使用單引號(hào)
      wx.showToast({
       title: '注冊(cè)成功',
       icon: 'success',
       duration: 2000
      })
      wx.switchTab({
       url: '../UI/ui',
      })

     }

    }
   }),
   
   //失敗嘗試
   wx.showToast({
    title: '請(qǐng)重試',
    icon: 'loading',
    duration: 500
   })
 },
 error(e) {
  console.log(e.detail)
 },

//獲取用戶信息
 bindGetUserInfo: function(e){
  this.setData({
   nickName: e.detail.userInfo.nickName
  })
  wx.showToast({
   title: '授權(quán)成功',
   icon: 'success',
   duration: 1000
  })
 },

//先授權(quán)登陸，再拍照注冊(cè)
 btnreg:function(){
  wx.showModal({
   title: '注冊(cè)須知',
   content: '先授權(quán)登陸，再拍照注冊(cè)哦！網(wǎng)絡(luò)可能故障，如果不成功，請(qǐng)?jiān)僭囈幌拢?,
  })
 }

})

<!-- camera.wxml -->
<camera
 device-position="front"
 flash="off"
 binderror="error"
 style="width: 100%; height: 300px;"
></camera>
<button type="primary" bindtap="takePhoto">拍照</button>
<view>預(yù)覽</view>
<image mode="widthFix" src="{{src}}"></image>

// camera.js
Page({
 data: {
  base64: "",
  token: "",
  msg: null
 },
 //拍照并編碼
 takePhoto() {
  //拍照
  const ctx = wx.createCameraContext()
  ctx.takePhoto({
   quality: 'high',
   success: (res) => {
    this.setData({
     src: res.tempImagePath
    })
   }
  })

  var that = this;
  //圖片base64編碼
  wx.getFileSystemManager().readFile({
   filePath: this.data.src, //選擇圖片返回的相對(duì)路徑
   encoding: 'base64', //編碼格式
   success: res => { //成功的回調(diào)
    that.setData({
     base64: res.data
    })
   }
  })

  //acess_token獲取
  wx.request({
   url: 'https://aip.baidubce.com/oauth/2.0/token', //真實(shí)的接口地址
   data: {
    grant_type: 'client_credentials',
    client_id: '**************************',
    client_secret: '*******************************'//用自己的
   },
   header: {
    'Content-Type': 'application/json' // 默認(rèn)值
   },
   success(res) {
    that.setData({
     token: res.data.access_token//獲取到token
    })
   }
  })

  //上傳人臉進(jìn)行 比對(duì)
  wx.request({
   url: 'https://aip.baidubce.com/rest/2.0/face/v3/search?access_token=' + that.data.token,
   method: 'POST',
   data: {
    image: this.data.base64,
    image_type: 'BASE64',
    group_id_list: '********'//自己建的用戶組id
   },
   header: {
    'Content-Type': 'application/json' // 默認(rèn)值
   },
   success(res) {
    that.setData({
     msg: res.data.result.user_list[0].score
    })
    if(that.data.msg > 80){
     wx.showToast({
      title: '驗(yàn)證通過(guò)',
      icon: 'success',
      duration: 1000
     })
     //驗(yàn)證通過(guò)，跳轉(zhuǎn)至UI頁(yè)面
     wx.switchTab({
      url: '../UI/ui',
     })
    }
   }
  });

  wx.showToast({
   title: '請(qǐng)重試',
   icon: 'loading',
   duration: 500
  })
 },
 error(e) {
  console.log(e.detail)
 }
})