微信小程序受權獲取用戶詳細信息openid

小程序獲取用戶的頭像暱稱openid之類  php

第一種使用wx.getUserInfo直接獲取微信頭像,暱稱html

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wx.getUserInfo({
    success: function (res) {
    that.setData({
      nickName: res.userInfo.nickName,
      avatarUrl: res.userInfo.avatarUrl,
    })
    },
})

第二種 java

咱們在使用小程序wx.login API進行登陸的時候,直接使用wx.getUserInfo是不能獲取更多的信息的,如微信用戶的openid。 
官方提示,須要發送獲取到的code進行請求到微信的後端API,進行用戶解密之類的操做才能夠獲取,laravel

根據文檔,只須要進行一個get請求到以下地址便可:編程

 

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https: //api.weixin.qq.com/sns/jscode2session?appid=APPID&secret=SECRET&js_code=JSCODE&grant_type=authorization_code
 
appid和secret在微信小程序後臺能夠看到,js_code爲使用wx.login登陸時獲取到的code參數數據,grant_type這個不用改動。

js文件json

 
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var openId = (wx.getStorageSync( 'openId' ))
     if (openId) {
      wx.getUserInfo({
       success: function (res) {
        that.setData({
         nickName: res.userInfo.nickName,
         avatarUrl: res.userInfo.avatarUrl,
        })
       },
       fail: function () {
        // fail
        console.log( "獲取失敗!" )
       },
       complete: function () {
        // complete
        console.log( "獲取用戶信息完成!" )
       }
      })
     } else {
      wx.login({
       success: function (res) {
        console.log(res.code)
        if (res.code) {
         wx.getUserInfo({
          withCredentials: true ,
          success: function (res_user) {
           wx.request({
            //後臺接口地址
            url: 'https://....com/wx/login' ,
            data: {
             code: res.code,
             encryptedData: res_user.encryptedData,
             iv: res_user.iv
            },
            method: 'GET' ,
            header: {
             'content-type' : 'application/json'
            },
            success: function (res) {
             // this.globalData.userInfo = JSON.parse(res.data);
             that.setData({
              nickName: res.data.nickName,
              avatarUrl: res.data.avatarUrl,
             })
             wx.setStorageSync( 'openId' , res.data.openId);
 
            }
           })
          }, fail: function () {
           wx.showModal({
            title: '警告通知' ,
            content: '您點擊了拒絕受權,將沒法正常顯示我的信息,點擊肯定從新獲取受權。' ,
            success: function (res) {
             if (res.confirm) {
              wx.openSetting({
               success: (res) => {
                if (res.authSetting[ "scope.userInfo" ]) { ////若是用戶從新贊成了受權登陸
                 wx.login({
                  success: function (res_login) {
                   if (res_login.code) {
                    wx.getUserInfo({
                     withCredentials: true ,
                     success: function (res_user) {
                      wx.request({
                       url: 'https://....com/wx/login' ,
                       data: {
                        code: res_login.code,
                        encryptedData: res_user.encryptedData,
                        iv: res_user.iv
                       },
                       method: 'GET' ,
                       header: {
                        'content-type' : 'application/json'
                       },
                       success: function (res) {
                        that.setData({
                         nickName: res.data.nickName,
                         avatarUrl: res.data.avatarUrl,
 
                        })
                        wx.setStorageSync( 'openId' , res.data.openId);
                       }
                      })
                     }
                    })
                   }
                  }
                 });
                }
               }, fail: function (res) {
 
               }
              })
 
             }
            }
           })
          }, complete: function (res) {
 
 
          }
         })
        }
       }
      })
 
     }
 
 
  },
  globalData: { 
   userInfo: null
  }

後臺是php 框架是laravel5.4版本小程序

源碼免費下載地址:http://www.jinhusns.com/Products/Download/後端

官方文檔:微信小程序

https://mp.weixin.qq.com/debug/wxadoc/dev/api/signature.htmlapi

微信官方提供了多種編程語言的示例代碼(點擊下載)。每種語言類型的接口名字均一致。調用方式能夠參照示例。

下載以後在php文件中引入:

 
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<?php
 
namespace App\Http\Controllers\Admin;
 
use Illuminate\Http\Request;
use App\Http\Controllers\Controller;
use App\Models\User;
use App\Models\Wechatuser;
include_once  app_path( '/Http/Controllers/Admin/PHP/wxBizDataCrypt.php' );
 
 
  // 獲取微信用戶信息
   public function getWxLogin(Request $request)
   {
    // require_once ROOTPATH . "./PHP/wxBizDataCrypt.php";
 
     $code  =  $request->get( 'code' );
     $encryptedData  =  $request->get( 'encryptedData' );
     $iv  =  $request->get( 'iv' );
     $appid = "***" ;
     $secret =  "***" ;
 
     $URL = "https://api.weixin.qq.com/sns/jscode2session?appid=$appid&secret=$secret&js_code=$code&grant_type=authorization_code" ;
 
     $apiData=file_get_contents($URL);
     // var_dump($code,'wwwwwwww',$apiData['errscode']);
     //   $ch = curl_init();
     //   curl_setopt($ch, CURLOPT_URL, $URL);
     //   curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
     //   curl_setopt($ch, CURLOPT_HEADER, 0);
     //   $output = curl_exec($ch);
     //   curl_close($ch)
 
     if (!isset($apiData[ 'errcode' ])){
       $sessionKey = json_decode($apiData)->session_key;
       $userifo = new \WXBizDataCrypt($appid, $sessionKey);
 
       $errCode = $userifo->decryptData($encryptedData, $iv, $data );
 
       if ($errCode == 0) {
         return ($data . "\n" );
       } else {
         return false ;
       }
     }
   }

官方文檔的登陸流程圖,整個登陸流程基本以下圖所示:

 

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