后台代码
jssdk.PHP——因sae的不可写环境，故需要将accesstoken和JsApiTicket存入数据库。
数据库字段：id（int 3），accesstoken（string 255），lasttime（int 10）
<?php class JSSDK { private $appId; private $appSecret; public function __construct($appId, $appSecret) { $this->appId = $appId; $this->appSecret = $appSecret; } public function getSignPackage() { $jsapiTicket = $this->getJsApiTicket(); // 注意 URL 一定要动态获取，不能 hardcode. $protocol = (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off' || $_SERVER['SERVER_PORT'] == 443) ? "https://" : "http://"; $url = "$protocol$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]"; $timestamp = time(); $nonceStr = $this->createNonceStr(); // 这里参数的顺序要按照 key 值 ASCII 码升序排序 $string = "jsapi_ticket=$jsapiTicket&noncestr=$nonceStr×tamp=$timestamp&url=$url"; $signature = sha1($string); $signPackage = array( "appId" => $this->appId, "nonceStr" => $nonceStr, "timestamp" => $timestamp, "url" => $url, "signature" => $signature, "rawString" => $string ); return $signPackage; } private function createNonceStr($length = 16) { $chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"; $str = ""; for ($i = 0; $i < $length; $i++) { $str .= substr($chars, mt_rand(0, strlen($chars) - 1), 1); } return $str; } private function getJsApiTicket() { $accessToken = $this -> getAccesstoken(); $lastAT = M('accesstoken')->find(2);//1:token;2:ticket if(!$lastAT){ M('accesstoken') -> add(array('id'=>2,'accesstoken'=>'null','lasttime'=>0)); $lastAT['lasttime'] = 0; } $ticket = $lastAT['accesstoken']; $now = NOW_TIME; $timecha = $now - $lastAT['lasttime']; if($timecha >= 7200){ // $url = 'https://api.weixin.qq.com/cgi-bin/ticket/getticket?' . http_build_query ( $param ); // $content = file_get_contents ( $url ); // $content = json_decode ( $content, true ); // 如果是企业号用以下 URL 获取 ticket // $url = "https://qyapi.weixin.qq.com/cgi-bin/get_jsapi_ticket?access_token=$accessToken"; $url = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?type=jsapi&access_token=".$accessToken; $res = json_decode($this->httpGet($url)); $ticket = $res->ticket; $data['accesstoken'] = $ticket; $data['lasttime'] = NOW_TIME; M('accesstoken')->where(array('id'=>2))->save($data); } return $ticket; } //sae无法写入操作，改从数据库获取 private function getAccessToken() { $param['grant_type'] = 'client_credential'; $param['appid'] = C("APPID"); $param['secret'] = C("SECRET"); $lastAT = M('accesstoken')->find(1); $accesstoken = $lastAT['accesstoken']; if(!$lastAT){ M('accesstoken') -> add(array('id'=>1,'accesstoken'=>'null','lasttime'=>0)); $lastAT['lasttime'] = 0; } $now = NOW_TIME; $timecha = $now - $lastAT['lasttime']; if($timecha >= 7200){ $url = 'https://api.weixin.qq.com/cgi-bin/token?' . http_build_query ( $param ); $content = file_get_contents ( $url ); $content = json_decode ( $content, true ); $data['accesstoken'] = $content['access_token']; $data['lasttime'] = NOW_TIME; M('accesstoken')->where(array('id'=>1))->save($data); $accesstoken = $content['access_token']; } $lastAT = M('accesstoken')->find(1); return $accesstoken; } private function httpGet($url) { $curl = curl_init(); curl_setopt($curl, CURLOPT_RETURNTRANSFER, true); curl_setopt($curl, CURLOPT_TIMEOUT, 500); // 为保证第三方服务器与微信服务器之间数据传输的安全性，所有微信接口采用https方式调用，必须使用下面2行代码打开ssl安全校验。 // 如果在部署过程中代码在此处验证失败，请到 http://curl.haxx.se/ca/cacert.pem 下载新的证书判别文件。 curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, true); curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, true); curl_setopt($curl, CURLOPT_URL, $url); $res = curl_exec($curl); curl_close($curl); return $res; } private function get_php_file($filename) { return trim(substr(file_get_contents($filename), 15)); } private function set_php_file($filename, $content) { $fp = fopen($filename, "w"); fwrite($fp, "<?php exit();?>" . $content); fclose($fp); } }
如果你的服务器是可写环境，可以使用官方提供的包。
前台文件
可以使用include将此文件包含在需要页面
<?php include('jssdk.php'); $jssdk = new JSSDK(C('APPID'), C('SECRET')); if(isWeixinBrowser()){ $signPackage = $jssdk->GetSignPackage(); } ?> <script type="text/javascript" src="http://res.wx.qq.com/open/js/jweixin-1.0.0.js"></script> <script> wx.config({ debug: false, // 开启调试模式,调用的所有api的返回值会在客户端alert出来，若要查看传入的参数，可以在pc端打开，参数信息会通过log打出，仅在pc端时才会打印。 appId: '<?php echo $signPackage["appId"];?>', // 必填，公众号的唯一标识 timestamp: <?php echo $signPackage["timestamp"];?>, // 必填，生成签名的时间戳 nonceStr: '<?php echo $signPackage["nonceStr"];?>', // 必填，生成签名的随机串 signature: '<?php echo $signPackage["signature"];?>',// 必填，签名，见附录1 jsApiList: [ 'checkJsApi', 'onMenuShareTimeline', 'onMenuShareAppMessage', 'onMenuShareQQ', 'onMenuShareWeibo' ] // 必填，需要使用的JS接口列表，所有JS接口列表见附录2 }); wx.ready(function () { // 1 判断当前版本是否支持指定 JS 接口，支持批量判断 wx.checkJsApi({ jsApiList: [ 'getNetworkType', 'previewImage', 'onMenuShareTimeline', 'onMenuShareAppMessage', 'onMenuShareQQ', 'onMenuShareWeibo' ], /* success: function (res) { alert(JSON.stringify(res)); } */ }); var shareData = { title: document.title, <notempty name="page_title"> desc: '我在'+'{:C('WEB_SITE_TITLE')}'+'发现了非常不错的宝贝:'+'{$page_title}'+'快来看看吧！', <else/> desc: '我发现了个很不错的商城'+'{:C('WEB_SITE_TITLE')}'+'快来看看吧！', </notempty> link: window.location.href, <notempty name="page_title"> imgUrl: document.getElementById("detail_img").src, <else/> imgUrl: '{:get_cover(get_cover_id(34),'path')}', </notempty> /* trigger: function (res) { alert('用户点击发送给朋友'); }, */ success: function (res) { alert('感谢您的分享'); }, cancel: function (res) { alert('请主公三思，分享一下吧(ㄒoㄒ)~~'); }, fail: function (res) { alert(JSON.stringify(res)); } }; wx.onMenuShareAppMessage(shareData); wx.onMenuShareTimeline(shareData); wx.onMenuShareQQ(shareData); wx.onMenuShareWeibo(shareData); }); /* wx.error(function (res) { alert(res.errMsg); }); */ </script>
出处：blog.csdn.NET/afanxingzhou