用thinkphp进行微信开发的整体设计思考

用thinkphp进行微信开发的整体设计思考

http://www.2cto.com/weixin/201504/388423.html

2015-04-09      0 个评论       作者：明之暗夜

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因为项目中很多地方都涉及到微信接口的调用 比如很多前台模块需要用到 后台模块也有少许调用 其他模块也可能会需要调用  为了让他们都能很方便的直接调用 我把他们独立成为一个模块 这个模块包含了基础的微信接口和微信jssdk

具体的设计请参考下面  当然如果有更好的建议可以共同交流 

我先建立了一个新的模块叫Weixin 并在其下面建立了控制器BaseController 也就是一个微信类

这个微信基类 我是这样定义的

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<?php /**  *微信开发的公共类（不含支付 如需要可自行加入）  *  */ namespace WeixinController; use ThinkController; use ComWechatAuth;   use ComJssdk;       class  BaseController extends Controller {     public $appId;     public $appSecret;     public $WechatAuth;     public $jssdk;     public function _initialize(){         $config = F('DB_CONFIG_DATA');   //获取配置信息         if(!$config){             $config = api('Config/lists');             F('DB_CONFIG_DATA',$config);         }         C($config); //添加配置         $this->appId = C('WEIXIN_CONFIG.appId');            $this->appSecret = C('WEIXIN_CONFIG.appSecret');         $this->WechatAuth =  new WechatAuth($this->appId,$this->appSecret);         $this->jssdk = new Jssdk($appId,$appSecret);   //调用微信Jssdk         // $this->signPackage = $this->jssdk->GetSignPackage();     } ?>

下面是我微信sdk包的部署目录结构供参考

这些部署好后 在任意模块中引入的方法是 

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1	$Weixin = new WeixinControllerBaseController();

下面我用实例来讲述如何使用

1，获取用户信息（不管微信用户是否关注了公众号  下面代码大部分为注释内容 其实很少）

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public function mytest () {                          $Weixin = new WeixinControllerBaseController();           $domain = C('WEB_DOMAIN');             $request_url = $_SERVER['REQUEST_URI'];             $redirect_url = $domain.$request_url;           if(!isset($_GET['code'])){                           header('Location:  https://open.weixin.qq.com/connect/oauth2/authorize?appid='.$Weixin->appId.'&redirect_uri='.$redirect_url.'&response_type=code&scope=snsapi_base&state=1/');                exit;                      }             $code = $_GET['code'];               $access_token_arr = $Weixin->WechatAuth ->getAccessToken('code',$code);   //oauth2.0网页授权的access_token         //$access_token_arr数据结构如下         /* Array         (             [access_token] => OezXcEiiBSKSxW0eoylIeLrIQT6NoDaXZIUcW_1wOj_TwSQ_Jqp2CBj0RLBbgvBCkzyZ74E6066btMwNPj6JYaR_TPn9PH02FgR4APr7iOhihlYgosPEyDZIVJXduuvUj3ay5cVYpv_TDA3TBNvLiA             [expires_in] => 7200             [refresh_token] => OezXcEiiBSKSxW0eoylIeLrIQT6NoDaXZIUcW_1wOj_TwSQ_Jqp2CBj0RLBbgvBCzJ6lw18Bb-cy9yUp2Tojmp48u_95jVHl1WTODEM0Z3yAPY8sORIlF0Gw8_99eEXsCagdc29djCjEWv2TovkPig             [openid] => o0r2njtFSolnsaBoVP5MxjhNjUlg             [scope] => snsapi_base         )*/         $globals_access_token = $Weixin->WechatAuth->getAccessToken();    //全局access_token           $userInfo = $Weixin->WechatAuth->userInfo($access_token_arr['openid']); //通过全局access_token获取用户基本信息 未关注是array('subscribe'=>0,'openid')           if(!$userInfo['subscribe']){ //用户未关注  只能通过网页授权api获取用户信息             $data = array();             $data['access_token'] = $access_token_arr['access_token'];                         $data['openid'] = $access_token_arr['openid'];                         $userinfo = $Weixin->WechatAuth->getUserInfo($data);                         p($userinfo);//打印信息                         /*                 Array(                     [openid] => o0r2njtFSolnsaBoVP5MxjhNjUlg                     [nickname] => 呼啦啦                     [sex] => 1                     [language] => zh_CN                     [city] =>                     [province] =>                     [country] => 赞比亚                     [headimgurl] => http://wx.qlogo.cn/mmopen/rBgkzASpGRQLPXPDlEGmPoHl35qjwaA8s4WfOncETZm7kDGEVicEJZORzO73m7ib9Av7AK7icLrfl1nmhxGsglmzJRcnryNPy6T/0                     [privilege] => Array                         (                         )                   )             */             }else{  //关注了公众号 直接返回用户信息               p($userInfo);  //打印信息             /*                 Array(                     [subscribe] => 1                     [openid] => o0r2njtFSolnsaBoVP5MxjhNjUlg                     [nickname] => 呼啦啦                     [sex] => 1                     [language] => zh_CN                     [city] =>                     [province] =>                     [country] => 赞比亚                     [headimgurl] => http://wx.qlogo.cn/mmopen/rBgkzASpGRQLPXPDlEGmPoHl35qjwaA8s4WfOncETZm7kDGEVicEJZORzO73m7ib9Av7AK7icLrfl1nmhxGsglmzJRcnryNPy6T/0                     [subscribe_time] => 1427793013                     [remark] =>                 )             */           }                 }

由于微信开发自身机制的原因，在这里要说明的是，thinkphp官方给的wechatAuth包 中并没有对access_token进行缓存，还需要进行适当修改 下面仅以wechatAuth.class.php文件修改为例说明 （网页授权的token， jssdk中的ticket 也要做类似如下的缓存，在此就不一一说明了）

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/**     * 构造方法，调用微信高级接口时实例化SDK     * @param string $appid  微信appid     * @param string $secret 微信appsecret     * @param string $token  获取到的access_token     */    public function __construct($appid, $secret, $token = null){        if($appid && $secret){            $this->appId     = $appid;            $this->appSecret = $secret;            if(!empty($token)){                $this->accessToken = $token;            }else{                $this->getAccessToken();            }        } else {            throw new Exception('参数错误！');        }    }         /**     * 获取access_token，用于后续接口访问     * @return array access_token信息，包含 token 和有效期     */    public function getAccessToken($type = 'client', $code = null){                     $param = array(                     'appid'  => $this->appId,                     'secret' => $this->appSecret                );              switch ($type) {                case 'client':                    if(S('globals_access_token')){                        $this->accessToken = S('globals_access_token');                        return S('globals_access_token');                        break;                    }                    $param['grant_type'] = 'client_credential';                    $url = "{$this->apiURL}/token";                    break;                  case 'code':                    $param['code'] = $code;                    $param['grant_type'] = 'authorization_code';                    $url = "{$this->oauthApiURL}/oauth2/access_token";                    break;                                 default:                    throw new Exception('不支持的grant_type类型');                    break;            }              $token = self::http($url, $param);            $token = json_decode($token, true);              if(is_array($token)){                if(isset($token['errcode'])){                    throw new Exception($token['errmsg']);                } else {                    if($type == 'client'){                        S('globals_access_token',$token['access_token'],7000);                    }                      $this->accessToken = $token['access_token'];                                        return $token;                }            } else {                throw new Exception('获取微信access_token失败！');            }                  }