Laravel 微信小程序后端实现用户登录的示例代码

接上篇微信小程序后端搭建：分享：Laravel 微信小程序后端搭建

后端搭建好后第一件事就是用户登录认证，简单实现微信小程序登录认证

1.user 模型

use LaravelPassportHasApiTokens; 新增

use HasApiTokens, Notifiable;

protected $fillable = [
 'id',
 'name',
 'email',
 'email_verified_at',
 'username',
 'phone',
 'avatar',//我用来把微信头像的/0清晰图片，存到又拍云上
 'weapp_openid',
 'nickname',
 'weapp_avatar',
 'country',
 'province',
 'city',
 'language',
 'location',
 'gender',
 'level',//用户等级
 'is_admin',//is管理员
];

2. 新增一条路由

//前端小程序拿到的地址：https://域名/api/v1/自己写的接口
Route::group(['prefix' =  '/v1'], function () {
  Route::post('/user/login', 'UserController@weappLogin');
});

3. 在 UserController 控制器里新建 function weappLogin ()，别忘了 use 这些

use AppUser;
use CarbonCarbon;
use IlluminateHttpRequest;
use IlluminateSupportFacadesStorage;

写两个 function weappLogin (),avatarUpyun ()

public function weappLogin(Request $request)
{
$code = $request- code;
// 根据 code 获取微信 openid 和 session_key
$miniProgram = EasyWeChat::miniProgram();
$data = $miniProgram- auth- session($code);
if (isset($data['errcode'])) {
return $this- response- errorUnauthorized('code已过期或不正确');
}
$weappOpenid = $data['openid'];
$weixinSessionKey = $data['session_key'];
$nickname = $request- nickname;
$avatar = str_replace('/132', '/0', $request- avatar);//拿到分辨率高点的头像
$country = $request- country?$request- country:'';
$province = $request- province?$request- province:'';
$city = $request- city?$request- city:'';
$gender = $request- gender == '1' ? '1' : '2';//没传过性别的就默认女的吧，体验好些
$language = $request- language?$request- language:'';
//找到 openid 对应的用户
$user = User::where('weapp_openid', $weappOpenid)- first();
//没有，就注册一个用户
if (!$user) {
$user = User::create([
'weapp_openid' =  $weappOpenid,
'weapp_session_key' =  $weixinSessionKey,
'password' =  $weixinSessionKey,
'avatar' =  $request- avatar?$this- avatarUpyun($avatar):'',
'weapp_avatar' =  $avatar,
'nickname' =  $nickname,
'country' =  $country,
'province' =  $province,
'city' =  $city,
'gender' =  $gender,
'language' =  $language,
]);
}
//如果注册过的，就更新下下面的信息
$attributes['updated_at'] = now();
$attributes['weixin_session_key'] = $weixinSessionKey;
$attributes['weapp_avatar'] = $avatar;
if ($nickname) {
$attributes['nickname'] = $nickname;
}
if ($request- gender) {
$attributes['gender'] = $gender;
}
// 更新用户数据
$user- update($attributes);
// 直接创建token并设置有效期
$createToken = $user- createToken($user- weapp_openid);
$createToken- token- expires_at = Carbon::now()- addDays(30);
$createToken- token- save();
$token = $createToken- accessToken;
return response()- json([
'access_token' =  $token,
'token_type' =  "Bearer",
'expires_in' =  Carbon::now()- addDays(30),
'data' =  $user,
], 200);
}
//我保存到又拍云了，版权归腾讯所有。。。头条闹的
private function avatarUpyun($avatar)
{
$avatarfile = file_get_contents($avatar);
$filename = 'avatars/' . uniqid() . '.png';//微信的头像链接我也不知道怎么获取后缀，直接保存成png的了
Storage::disk('upyun')- write($filename, $avatarfile);
$wexinavatar = config('filesystems.disks.upyun.protocol') . '://' . config('filesystems.disks.upyun.domain') . '/' . $filename;
return $wexinavatar;//返回链接地址
}

微信的头像 / 0

小头像默认 / 132

4. 后端上面就写好了，再看下小程序端怎么做的哈，打开小程序的 app.json，添加 “pages/auth/auth”,

{
"pages": [
"pages/index/index",
"pages/auth/auth",//做一个登录页面
"pages/logs/logs"
],
"window": {
"backgroundTextStyle": "light",
"navigationBarBackgroundColor": "#fff",
"navigationBarTitleText": "WeChat",
"navigationBarTextStyle": "black"
},
"sitemapLocation": "sitemap.json",
"permission": {
"scope.userLocation": {
"desc": "你的位置信息将用于小程序位置接口的效果展示"
}
}
}

5. 打开 auth.js

const app = getApp();
Page({
/**
* 页面的初始数据
*/
data: {
UserData: [],
isClick: false,
},
/**
* 生命周期函数--监听页面加载
*/
onLoad: function(options) {
},
login: function(e) {
let that=this
that.setData({
isClick: true
})
wx.getUserInfo({
lang: "zh_CN",
success: response =  {
wx.login({
success: res =  {
let data = {
code:res.code,
nickname: response.userInfo.nickName,
avatar: response.userInfo.avatarUrl,
country: response.userInfo.country ? response.userInfo.country : '',
province: response.userInfo.province ? response.userInfo.province : '',
city: response.userInfo.city ? response.userInfo.city : '',
gender: response.userInfo.gender ? response.userInfo.gender : '',
language: response.userInfo.language ? response.userInfo.language : '',
}
console.log(data)
app.globalData.userInfo = data;
wx.request({
url: '你的后端地址',//我用的valet，http://ak.name/api/v1/user/login
method: 'POST',
data: data,
header: {
'Content-Type': 'application/x-www-form-urlencoded'
},
success: function (res) {
console.log(res)
if (res.statusCode != '200') {
return false;
}
wx.setStorageSync('access_token', res.data.access_token)
wx.setStorageSync('UserData', res.data.data ? res.data.data : '')
wx.redirectTo({
url: '/pages/index/index',
})
},
fail: function (e) {
wx.showToast({
title: '服务器错误',
duration: 2000
});
that.setData({
isClick: false
})
},
});
}
})
},
fail: function (e) {
that.setData({
isClick: false
})
},
})
}
})

6. 打开 auth.wxml

<view class='padding-xl' 
<button class='cu-btn margin-top bg-green shadow lg block' open-type="getUserInfo" bindgetuserinfo="login" disabled="{{isClick}}" type='success' 
<text wx:if="{{isClick}}" class='cuIcon-loading2 iconfont-spin' </text  微信登录</button 
</view

以上就是本文的全部内容，希望对大家的学习有所帮助。