实现功能：
将微信二维码事件用作微信扫码登陆！！！
背景思路：
1、微信公众号获取用户信息需要微信浏览器打开才能获取
2、pc端使用微信登陆，需要微信开发者这个，认证需要每年300，实际上只有扫码登陆功能是有用的
3、微信二维码事件，可以根据二维码的信息，用户扫码之后可以根据二维码记录的信息处理业务需求
4、使用微信公众号的二维码做PC端的扫码登陆，理论上是没问题的
思路一：
1、生成用户登陆二维码
2、用户扫码之后记录session
3、前端启用定时器，后台检测有session，返回跳转链接到前台，前台跳转
开发的时候发现，用户扫码之后，记录了session，登陆控制器并不能获取到这个session，what the fuck！
手机端保存的session 怎么可能在pc端使用呢？当时是不是傻了！
居然如此那就创建一张数据表来记录吧！
创建扫码登陆记录表 login
CREATE TABLE `login` (`id` int(11) NOT NULL AUTO_INCREMENT,`openid` varchar(45) DEFAULT NULL,`uid` int(11) DEFAULT NULL COMMENT '用户id',`code` varchar(32) DEFAULT NULL COMMENT '唯一code',`create_time` int(11) DEFAULT NULL,PRIMARY KEY (`id`),UNIQUE KEY `code` (`code`) USING BTREE) ENGINE=MyISAM AUTO_INCREMENT=5 DEFAULT CHARSET=utf8;
前端HTML
<!DOCTYPE html><html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><link rel="icon" href="__HOME__/img/favicon.ico"/><title>微信登录</title><style>.impowerBox{display:inline-block;vertical-align:middle}p{margin:0;font-weight:400}img{border:0}body{font-family:"Microsoft Yahei";color:#fff;background:0 0}.impowerBox{line-height:1.6;position:relative;width:100%;z-index:1;text-align:center}.impowerBox .title{text-align:center;font-size:20px}.impowerBox .qrcode{width:280px;margin-top:15px;border:1px solid #E2E2E2}.impowerBox .info{width:280px;margin:0 auto}.impowerBox .status{padding:7px 14px;text-align:left}.impowerBox .status.normal{margin-top:15px;background-color:#232323;border-radius:100px;-moz-border-radius:100px;-webkit-border-radius:100px;box-shadow:inset 0 5px 10px -5px #191919,0 1px 0 0 #444;-moz-box-shadow:inset 0 5px 10px -5px #191919,0 1px 0 0 #444;-webkit-box-shadow:inset 0 5px 10px -5px #191919,0 1px 0 0 #444}.impowerBox .status.status_browser{text-align:center}.impowerBox .status p{font-size:13px}</style></head><body style="background-color: rgb(51, 51, 51); padding: 50px;"><div class="impowerBox"><div class="title">微信登录</div><img class="qrcode" src="{$login.img}" id="wxewm"><input type="hidden" name="code" value="{$login.code}"><div class="info"><div class="status status_browser normal"><p>1、请使用微信扫描二维码登录</p><p>2、关注“五五科技”公众号</p></div></div></div><script src="///jquery/1.12.1/jquery.min.js"></script><script type="text/javascript">var t1 ='';$(function() {//定时查询验证登录t1 = window.setInterval("login()",2000);setTimeout("end()",300000);});function end(){//停止定时器$('#wxewm').hide(); //隐藏二维码clearInterval(t1); //清除定时器$('.status_browser').html('<p>二维码已经过期，请刷新页面</p>');}// window 失去焦点，停止输出window.onblur = function() {clearInterval(t1);};// window 每次获得焦点window.onfocus = function() {t1 = window.setInterval("login()",2000);};function login(){//验证是否扫描二维码var code =$('input[name=code]').val();var url = "{:U('Home/Login/checkLogin')}";$.post(url,{code:code},function(data){if(data.status){window.location.href=data.url;}});}</script></body></html>
login控制器
#微信扫码登录public function login(){$code = "LOGIN_".substr(strtoupper(md5(date('Y-m-d H:i:s', time()) . mt_rand())), -16);$img = $this->getqcode($code);$data['code'] = $code;$data['img'] = $img;$this->assign('login',$data);$this->display();}#获取二维码public function getqcode($code){$errmsg = $this->WechatAuth->qrcodeCreate('QR_STR_SCENE',$code,300);if($errmsg['errcode']==0){$img = 'https://mp./cgi-bin/showqrcode?ticket='.$errmsg['ticket'];return $img;}else{return false;}}public function checkLogin(){$code = trim(I('post.code'));if(empty($code)){$this->ajaxReturn(array('status'=>0,'msg'=>'code不存在'));}$uid = M('login')->where(['code'=>$code])->getField('uid');$url = $this->backUrl();if(!$url){$url = C('DOMAIN').U('Home/Company/index');}if($uid){//将code置为null 方便下次扫码M('login')->where(['uid'=>$uid])->setField('code',null);$user_info = M('user')->find($uid);if($user_info){session('user_info', $user_info);session('user_uid',$user_info['id']);$this->ajaxReturn(array('status'=>1,'msg'=>'登录成功,马上为您跳转..^_^','url'=>$url));}}$this->ajaxReturn(array('status'=>0,'msg'=>'无登录信息'));}
微信控制器
/*** 微信入口*/public function index(){$this->wechat->valid();//明文或兼容模式可以在接口验证通过后注释此句，但加密模式一定不能注释，否则会验证失败$wx_data = $this->wechat->getRev()->getRevData(); //获取微信数据$openid = $wx_data['FromUserName'];$wx_userinfo = $this->getUserByopenid($openid);if(!$wx_userinfo){$wx_userinfo = $this->wechat->getUserInfo($openid);if(!$wx_userinfo){Log::write('miss userInfo', 'ERR', '', C('LOG_DATA_PATH') . 'weixin/error/' .date('Ym') .'/'. date('md') . '.log');$this->WechatAuth->sendText(C('WX_JINGZHI'),"获取用户信息失败！");M('access_token')->delete();}if($wx_userinfo){//添加用户$user_id = $this->addUser($wx_userinfo);exit;}}if(!$wx_userinfo){exit;}$type = $wx_data['MsgType']; //消息类型switch ($type) {case Wechat::MSGTYPE_EVENT://事件消息类型$event_type = $wx_data['Event'];switch ($event_type) {case Wechat::EVENT_SUBSCRIBE://微信关注事件$event_key = $wx_data['EventKey'];if ($event_key != '') {$event_key = strtoupper($event_key);$event_key = str_replace('QRSCENE_', '', $event_key);//带参二维码关注,跳转二维码事件$this->qrcode($event_key,$wx_userinfo);exit;} else {$this->wechat->text('Hi,'.$wx_userinfo['nickname'].'!欢迎关注五五科技！')->reply();exit;}break;case Wechat::EVENT_SCAN://关注后二维码事件if ($wx_data['EventKey'] != '') {$event_key = strtoupper($wx_data['EventKey']);$this->qrcode($event_key,$wx_userinfo);exit;}break;}break;default:$this->wechat->text('Hi,'.$wx_userinfo['nickname'].'!欢迎关注五五科技！')->reply();exit;exit;break;}}/*** 二维码扫描回复* @param $qrkey 二维码所带参数* @param $userInfo 用户信息*/public function qrcode($event_key,$wx_userinfo){if(strstr($event_key, 'LOGIN_')){$res = $this->login($event_key,$wx_userinfo);$data['openid'] = $wx_userinfo['openid'];$data['create_time'] = time();if($res){$data['project_name'] = "扫码登录成功";$data['url'] = C('DOMAIN').U('Home/Company/index');//发送微信模板消息$this->wxMsg->organSend(1,$data);exit;}else{$data['project_name'] = "扫码失败，请稍后再试";$this->wxMsg->organSend(1,$data);exit;}}exit;}//登录public function login($code,$userInfo){$user_id = $this->getUserId($userInfo);if(empty($user_id)){return false;}if(empty($userInfo['openid'])){return false;}$login_id=M('login')->field('id')->where(['openid'=>$userInfo['openid']])->getField('id');if(!$login_id){$data['openid'] = $userInfo['openid'];$data['uid'] = $user_id;$data['code'] = $code;$data['create_time'] = time();$res = M('login')->add($data);}else{$res = M('login')->where(['openid'=>$userInfo['openid']])->setField('code',$code);}if($res !== false){return true;}else{return false;}}
关联资源：
（一）、生成 微信Accesstoken 服务：
<?phpnamespace Common\Service;use Extend\WechatAuth;//下载地址#1、使用前需要配置微信 APPID、APPSECRET、过期时间（默认6500秒，官方过期时间为7200秒）#2、创建存储数据库 该类基于thinkphp3.2 框架开发 其他框架请适当修改操作数据库方法class AccesstokenService {public function getAccessToken(){$appid = C('WX_APPID');//微信公众号APPID$appsecret = C('WX_APPSECRET');//微信公众号APPSECRET$accessTokenInfo = M('access_token')->order('expire desc')->find();if($accessTokenInfo && $accessTokenInfo['accesstoken']){if(time()<$accessTokenInfo['expire']){$accessToken['access_token'] = $accessTokenInfo['accesstoken'];$accessToken['jsapi_ticket'] = $accessTokenInfo['jsapi_ticket'];}else{//token 过期$accessToken = $this->getWechatAccess($appid,$appsecret);}}else{$accessToken = $this->getWechatAccess($appid,$appsecret);}return $accessToken;}//获取微信 access_tokenpublic function getWechatAccess($appid,$appsecret){$wechatAuth = new WechatAuth($appid, $appsecret);$s_accessToken = $wechatAuth->getAccessToken();$add['accesstoken'] = $s_accessToken['access_token'];$add['jsapi_ticket']= $this->getTicket($appid,$appsecret,$s_accessToken['access_token']);$add['expire'] = time()+6500;//过期时间戳 token有限期为7200 要及时更新token$this->delAccessToken();$addInfo = M('access_token')->add($add);if($addInfo){$return['access_token'] = $add['accesstoken'];$return['jsapi_ticket'] = $add['jsapi_ticket'];}return $return;}//获取 微信js Ticketpublic function getTicket($appid,$appsecret,$accessToken){$wechatAuth = new WechatAuth($appid, $appsecret,$accessToken);$returnTicket = $wechatAuth->getJsapiTicket();$ticket = $returnTicket['ticket'] ? $returnTicket['ticket']:0;return $ticket;}//删除tokenpublic function delAccessToken(){$deleWhere['expire'] = array('gt',0);M('access_token')->where($deleWhere)->delete();}}
使用案例：
<?phpnamespace Weixin\Controller;use Common\Service\AccesstokenService;public function getToken(){$accesstokenService = new AccesstokenService();$access= $accesstokenService->getAccessToken();$access_token = $access['access_token'];}
（二）、Wechat.class.php 微信公众平台PHP-SDK
封装了微信公众号开发的基本功能 只给公众号互动的用户提供服务，指定用户提供服务请参考下方的WechatAuth类
#代码片段const MSGTYPE_TEXT = 'text';const MSGTYPE_IMAGE = 'image';const MSGTYPE_LOCATION = 'location';const MSGTYPE_LINK = 'link';const MSGTYPE_EVENT = 'event';const MSGTYPE_MUSIC = 'music';const MSGTYPE_NEWS = 'news';const MSGTYPE_VOICE = 'voice';const MSGTYPE_VIDEO = 'video';const EVENT_SUBSCRIBE = 'subscribe'; //订阅const EVENT_UNSUBSCRIBE = 'unsubscribe'; //取消订阅const EVENT_SCAN = 'SCAN'; //扫描带参数二维码const EVENT_LOCATION = 'LOCATION'; //上报地理位置const EVENT_MENU_VIEW = 'VIEW'; //菜单 - 点击菜单跳转链接const EVENT_MENU_CLICK = 'CLICK'; //菜单 - 点击菜单拉取消息const EVENT_MENU_SCAN_PUSH = 'scancode_push'; //菜单 - 扫码推事件(客户端跳URL)const EVENT_MENU_SCAN_WAITMSG = 'scancode_waitmsg'; //菜单 - 扫码推事件(客户端不跳URL)const EVENT_MENU_PIC_SYS = 'pic_sysphoto';//菜单 - 弹出系统拍照发图const EVENT_MENU_PIC_PHOTO = 'pic_photo_or_album'; //菜单 - 弹出拍照或者相册发图const EVENT_MENU_PIC_WEIXIN = 'pic_weixin'; //菜单 - 弹出微信相册发图器const EVENT_MENU_LOCATION = 'location_select';//菜单 - 弹出地理位置选择器const EVENT_SEND_MASS = 'MASSSENDJOBFINISH'; //发送结果 - 高级群发完成const EVENT_SEND_TEMPLATE = 'TEMPLATESENDJOBFINISH';//发送结果 - 模板消息发送结果const EVENT_KF_SEESION_CREATE = 'kfcreatesession'; //多客服 - 接入会话const EVENT_KF_SEESION_CLOSE = 'kfclosesession'; //多客服 - 关闭会话const EVENT_KF_SEESION_SWITCH = 'kfswitchsession'; //多客服 - 转接会话const EVENT_CARD_PASS = 'card_pass_check';//卡券 - 审核通过const EVENT_CARD_NOTPASS = 'card_not_pass_check'; //卡券 - 审核未通过const EVENT_CARD_USER_GET = 'user_get_card'; //卡券 - 用户领取卡券const EVENT_CARD_USER_DEL = 'user_del_card'; //卡券 - 用户删除卡券...此处省略好多字const CARD_MEMBERCARD_ACTIVATE = '/card/membercard/activate?';//激活会员卡const CARD_MEMBERCARD_UPDATEUSER= '/card/membercard/updateuser?'; //更新会员卡const CARD_MOVIETICKET_UPDATEUSER= '/card/movieticket/updateuser?'; //更新电影票(未加方法)const CARD_BOARDINGPASS_CHECKIN = '/card/boardingpass/checkin?';//飞机票-在线选座(未加方法)const CARD_LUCKYMONEY_UPDATE= '/card/luckymoney/updateuserbalance?';//更新红包金额const SEMANTIC_API_URL = '/semantic/semproxy/search?'; //语义理解...此处也省略好多字///微信摇一摇周边const SHAKEAROUND_DEVICE_APPLYID = '/shakearound/device/applyid?';//申请设备IDconst SHAKEAROUND_DEVICE_SEARCH = '/shakearound/device/search?';//查询设备列表const SHAKEAROUND_DEVICE_BINDLOCATION = '/shakearound/device/bindlocation?';//配置设备与门店ID的关系const SHAKEAROUND_DEVICE_BINDPAGE = '/shakearound/device/bindpage?';//配置设备与页面的绑定关系const SHAKEAROUND_PAGE_ADD = '/shakearound/page/add?';//增加页面const SHAKEAROUND_PAGE_UPDATE = '/shakearound/page/update?';//编辑页面const SHAKEAROUND_PAGE_SEARCH = '/shakearound/page/search?';//查询页面列表const SHAKEAROUND_PAGE_DELETE = '/shakearound/page/delete?';//删除页面const SHAKEAROUND_USER_GETSHAKEINFO = '/shakearound/user/getshakeinfo?';//获取摇周边的设备及用户信息const SHAKEAROUND_STATISTICS_DEVICE = '/shakearound/statistics/device?';//以设备为维度的数据统计接口微信公众号基本功能都封装好了轻松调用
使用案例：
<?phpnamespace Weixin\Controller;use Think\Controller;use Extend\Wechat;/*** 微信主入口*/class IndexController extends Controller{protected $wechat;public function _initialize(){//配置$options = array('token' => C("WX_TOKEN"), //填写你设定的key'encodingaeskey' => C("WX_ENCODINGAESKEY"),//填写加密用的EncodingAESKey，如接口为明文模式可忽略'appid' => C("WX_APPID"), //填写高级调用功能的app id'appsecret' => C("WX_APPSECRET") //填写高级调用功能的密钥);$this->wechat = new Wechat($options);}}
下载地址：
/download/qq_16024861/10619807
（三）、WechatAuth类 封装了 微信消息及二维码类 可指定openid 发送消息
#代码片段/* 消息类型常量 */const MSG_TYPE_TEXT= 'text';const MSG_TYPE_IMAGE = 'image';const MSG_TYPE_VOICE = 'voice';const MSG_TYPE_VIDEO = 'video';const MSG_TYPE_MUSIC = 'music';const MSG_TYPE_NEWS= 'news';const MSG_TYPE_LOCATION = 'location';const MSG_TYPE_LINK= 'link';const MSG_TYPE_EVENT = 'event';/* 二维码类型常量 */const QR_SCENE = 'QR_SCENE';const QR_STR_SCENE = 'QR_STR_SCENE';const QR_LIMIT_SCENE = 'QR_LIMIT_SCENE';const QR_LIMIT_STR_SCENE = 'QR_LIMIT_STR_SCENE';
使用案例：
<?phpnamespace Weixin\Controller;use Think\Controller;use Extend\WechatAuth;use Common\Service\AccesstokenService;/*** 微信主入口*/class IndexController extends Controller{protected $WechatAuth;protected $accessToken;public function _initialize(){$accesstokenService = new AccesstokenService();$access = $accesstokenService->getAccessToken();$this->accessToken = $access['access_token'];$appid = C("WX_APPID"); //填写高级调用功能的app id$appsecret = C("WX_APPSECRET"); //填写高级调用功能的密钥$this->WechatAuth = new WechatAuth($appid, $appsecret, $this->accessToken);}public function index(){$openid = 'oDz8p0nnhZyajdc7RhLWT3QeQX7c';//发送文本消息$this->WechatAuth->sendText($openid,"hello world！");}}
下载地址：
/download/qq_16024861/10619821
（四）打包下载
**三类合一（AccesstokenService、Wechat、WechatAuth）
几行代码实现微信公众号想要的功能，你值得拥有**
下载地址：
/download/qq_16024861/10619358
（五）微信模板消息类
template.php 模板配置项
TemplenoticeService.class.php 模板类
第一步：在微信公众号模板管理添加要使用的模板
第二步：在模板配置项配置好模板如下：
第三步：在模板消息类配置好每个类型对应发送哪个模板消息
第四步：配置好根据类型选择模板id
第五步：创建数据表 记录消息发送状态，发送失败支持重新发送
CREATE TABLE `send_log` (`id` int(11) NOT NULL AUTO_INCREMENT,`openid` varchar(100) NOT NULL DEFAULT '' COMMENT '微信收件人openid',`template_id` varchar(100) NOT NULL DEFAULT '' COMMENT '微信template_id',`title` varchar(255) DEFAULT NULL COMMENT '标题',`content` text NOT NULL COMMENT '消息内容',`wechat_result` tinyint(1) unsigned NOT NULL DEFAULT '0' COMMENT '微信是否发送成功,0否,1是',`wechat_fail_reason` varchar(255) NOT NULL DEFAULT '' COMMENT '微信失败原因',`create_time` int(11) NOT NULL DEFAULT '0' COMMENT '创建时间',`url` varchar(150) DEFAULT NULL COMMENT '跳转url',PRIMARY KEY (`id`)) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8;
使用案例：
<?phpnamespace Weixin\Controller;use Think\Controller;use Extend\Wechat;use Extend\WechatAuth;use Common\Service\AccesstokenService;use Common\Service\TemplenoticeService;use Think\Log;/*** 微信主入口*/class IndexController extends Controller{protected $wxMsg;public function _initialize(){$this->wxMsg = new TemplenoticeService();}//发送类型为1的模板消息 //先在TemplenoticeService.class.php 模板类 找到1的类型//const WX_LOGIN = 1; //微信登录 1为登陆类型 登陆类型模板id为1//安全登录提醒// '1' => array(//'template_id' => 'vKsF0lYqpNcDQ4zzkgj_Nletqbjx6a1oPDNVGJi88so',//'msg' => array(// 'first' => array('value'=>'%title%\n\r','color'=>"#55BBAA"),// 'keyword1' => array('value'=>'%project_name%','color'=>"#000000"),//登录方式// 'keyword2' => array('value'=>'%create_time%','color'=>"#000000"),//登录时间//),// ),//登陆类型有title、project_name、create_time变量 我们组装数组的时候需要设置数组参数public function index(){$data['openid'] = 'oDz8p0nnhZyajdc7RhLWT3QeQX7c';//必须 接收模板消息的用户openid$data['create_time'] = time();$data['project_name'] = "扫码登录成功";$data['url'] = C('DOMAIN').U('Home/Company/index');//可无$this->wxMsg->organSend(1,$data);exit;//消息发送后不管失败还是成功会记录到send_log表}//重发id为1的模板消息public function emailSend(){$id = 1;if(empty($id)){$this->ajaxError('参数不能为空');}$info = M('send_log')->find($id);if(empty($info)){$this->ajaxError('邮件不存在');}$res = $this->wxMsg->sendAgain($info);if(isset($res) && $res['status'] == 1){$save['wechat_result'] = 1;$save['wechat_fail_reason'] = '';M('send_log')->where(['id'=>$id])->save($save);$this->ajaxSuccess('发送成功');}else{$save['wechat_result'] = 0;$save['wechat_fail_reason'] = $res['info'];M('send_log')->where(['id'=>$id])->save($save);$this->ajaxError('失败原因：'.$res['info']);}}}
资源包含：1、生成 微信Accesstoken 服务；2、WechatAuth类 封装了 微信消息及二维码类 可指定openid 发送消息；3、微信模板消息类
下载地址：
/download/qq_16024861/1060
