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
<?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
$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）
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）
/**
* 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！');
}
}