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小程序获取用户的头像昵称openid之类
- 第一种使用wx.getUserInfo直接获取微信头像,昵称
wx.getUserInfo({
success: function (res) {
that.setData({
nickName: res.userInfo.nickName,
avatarUrl: res.userInfo.avatarUrl,
})
},
})
- 第二种
我们在使用小程序wx.login API进行登录的时候,直接使用wx.getUserInfo是不能获取更多的信息的,如微信用户的openid。
官方提示,需要发送获取到的code进行请求到微信的后端API,
根据文档,只需要进行一个get请求到如下地址即可:
https://api.weixin.qq.com/sns/jscode2session?appid=APPID&secret=SECRET&
js_code=JSCODE&grant_type=authorization_code
appid和secret在微信小程序后台可以看到,
js_code为使用wx.login登录时获取到的code参数数据,
grant_type这个不用改动。
- js文件
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("获取失败!")
},
complete: function () {
// complete
console.log("获取用户信息完成!")
}
})
} else {
wx.login({
success: function (res) {
console.log(res.code)
if (res.code) {
wx.getUserInfo({
withCredentials: true,
success: function (res_user) {
wx.request({
//后台接口地址
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: \'您点击了拒绝授权,将无法正常显示个人信息,点击确定重新获取授权。\',
success: function (res) {
if (res.confirm) {
wx.openSetting({
success: (res) => {
if (res.authSetting["scope.userInfo"]) {////如果用户重新同意了授权登录
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
}
- 后台是php 框架是laravel5.4版本
官方文档:
https://mp.weixin.qq.com/debug/wxadoc/dev/api/signature.html
微信官方提供了多种编程语言的示例代码(点击下载)。每种语言类型的接口名字均一致。调用方式可以参照示例。
下载之后在php文件中引入:
<?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\');
// 获取微信用户信息
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;
}
}
}
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官方文档的登录流程图,整个登录流程基本如下图所示:
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