微信分享网页的时候，希望分享出来的链接是标题+描述+缩略图，微信开发代码示例里已提供了方法，但只适用于动态页面。我使用phpcms把页面生成了静态文件，示例代码就起不到作用了。在网上找了下，有大神使用ajax实现静态页面也能实现微信分享功能，在这里分享给大家。
前台代码：
<script src="https://res.wx.qq.com/open/js/jweixin-1.0.0.js"></script> <script> url=location.href; $.ajax({ type : "get", url : "http://xxxxxxxxx/jssdk.php?url="+url,//替换网址，xxx根据自己jssdk文件位置修改 dataType : "jsonp", jsonp: "callback", jsonpCallback:"success_jsonpCallback", success : function(data){ wx.config({ appId: data.appId, timestamp: data.timestamp, nonceStr: data.nonceStr, signature: data.signature, jsApiList: [ "onMenuShareTimeline", //分享给好友 "onMenuShareAppMessage", //分享到朋友圈 "onMenuShareQQ", //分享到QQ "onMenuShareWeibo" //分享到微博 ] }); }, error:function(data){ alert("连接失败！"); } }); wx.ready(function (){ var shareData = { title: '标题', desc: '简介',//这里请特别注意是要去除html link: '链接', imgUrl: '题图' }; wx.onMenuShareAppMessage(shareData); wx.onMenuShareTimeline(shareData); wx.onMenuShareQQ(shareData); wx.onMenuShareWeibo(shareData); }); </script>
记得把jquery的库也加上去，否则ajax不会运行
修改服务端文件jssdk.PHP
<?php $url = $_GET['url']; class JSSDK { private $appId; private $appSecret; private $url; public function __construct($appId, $appSecret,$url) { $this->appId = $appId; $this->appSecret = $appSecret; $this->url = $url; } public function getSignPackage() { $jsapiTicket = $this->getJsApiTicket(); $protocol = (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off' || $_SERVER['SERVER_PORT'] == 443) ? "https://" : "http://"; // $url = "$protocol$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]"; $url =$this->url; $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() { // jsapi_ticket 应该全局存储与更新，以下代码以写入到文件中做示例 $data = json_decode(file_get_contents("jsapi_ticket.json")); if ($data->expire_time < time()) { $accessToken = $this->getAccessToken(); // 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 = $res->ticket; if ($ticket) { $data->expire_time = time() + 7000; $data->jsapi_ticket = $ticket; $fp = fopen("jsapi_ticket.json", "w"); fwrite($fp, json_encode($data)); fclose($fp); } } else { $ticket = $data->jsapi_ticket; } return $ticket; } private function getAccessToken() { // access_token 应该全局存储与更新，以下代码以写入到文件中做示例 $data = json_decode(file_get_contents("access_token.json")); if ($data->expire_time < time()) { // 如果是企业号用以下URL获取access_token // $url = "https://qyapi.weixin.qq.com/cgi-bin/gettoken?corpid=$this->appId&corpsecret=$this->appSecret"; $url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=$this->appId&secret=$this->appSecret"; $res = json_decode($this->httpGet($url)); $access_token = $res->access_token; if ($access_token) { $data->expire_time = time() + 7000; $data->access_token = $access_token; $fp = fopen("access_token.json", "w"); fwrite($fp, json_encode($data)); fclose($fp); } } else { $access_token = $data->access_token; } return $access_token; } private function httpGet($url) { $curl = curl_init(); curl_setopt($curl, CURLOPT_RETURNTRANSFER, true); curl_setopt($curl, CURLOPT_TIMEOUT, 500); curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false); curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false); curl_setopt($curl, CURLOPT_URL, $url); $res = curl_exec($curl); curl_close($curl); return $res; } } $jssdk = new JSSDK("公众号ID", "公众号密钥",$url);//按照自己的公众号填写 $signPackage = $jssdk->GetSignPackage(); $tmp=json_encode(array ('appId'=>$signPackage["appId"],'timestamp'=>$signPackage["timestamp"],'nonceStr'=>$signPackage["nonceStr"],'signature'=>$signPackage["signature"],'url'=>$signPackage["url"])); $callback = $_GET['callback']; echo $callback.'('.$tmp.')'; exit; ?>
其它的按照动态页面设置即可。