靜態頁面實現微信分享帶縮略圖、標題和描述，想法很現實，要想實現這樣的功能這里就要用到大ajax技術，在這里361源碼分享給大家。

服務端文件jssdk.php代碼：

<?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();                      // 這里參數的順序要按照 key 值 ASCII 碼升序排序         $string = "jsapi_ticket=$jsapiTicket&noncestr=$nonceStr&timestamp=$timestamp&url=$url"; //這里經常出問題,一般都是這里出現問題，要留意                       $signature = sha1($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 應該全局存儲與更新，以下代碼以寫入到文件中做示例         $data = json_decode(file_get_contents("jsapi_ticket.json"));        if ($data->expire_time < time()) {            $accessToken = $this->getAccessToken();            // 如果是企業號用以下 URL 獲取 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 應該全局存儲與更新，以下代碼以寫入到文件中做示例         $data = json_decode(file_get_contents("access_token.json"));        if ($data->expire_time < time()) {            // 如果是企業號用以下URL獲取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;    }}       $jssdk = new JSSDK("APPID", "APPSECRET",$url);//按照自己的公眾號填寫 $signPackage = $jssdk->GetSignPackage();// var_dump($signPackage); $tmp=json_encode(array ('appId'=>$signPackage["appId"],'timestamp'=>$signPackage["timestamp"],'nonceStr'=>$signPackage["nonceStr"],'signature'=>$signPackage["signature"],'url'=>$signPackage["url"]));$callback = $_GET['callback'];echo $callback.'('.$tmp.')';exit;?>

靜態頁面js代碼：

<script src="http://res.wx.qq.com/open/js/jweixin-1.0.0.js"></script>  <script>url = location.href.split('#')[0];url = encodeURIComponent(url);    $.ajax({        type : "get",        url : "http://xxxxx.com/jssdk.php?url="+url,//替換網址，xxx根據自己jssdk文件位置修改         dataType : "jsonp",        jsonp: "callback",        jsonpCallback:"success_jsonpCallback",        success : function(data){                wx.config({                debug:false,appId: data.appId,timestamp: data.timestamp,nonceStr: data.nonceStr,signature: data.signature,jsApiList: [              "onMenuShareTimeline", //分享給好友               "onMenuShareAppMessage", //分享到朋友圈               "onMenuShareQQ", //分享到QQ               "onMenuShareWeibo" //分享到微博 ]});},                                error:function(data){                                        alert("連接失敗！");                                }});    wx.ready(function (){    var shareData = {    title: '更換標題',    desc: '更換內容',//這里請特別注意是要去除html     link: '更換鏈接',    imgUrl: '更換圖片'    };    wx.onMenuShareAppMessage(shareData);    wx.onMenuShareTimeline(shareData);    wx.onMenuShareQQ(shareData);    wx.onMenuShareWeibo(shareData);        });</script>

配置好jssdk.php文件后，只需要把js代碼加入到靜態頁面模版中即可。

還有一個地方需要注意的是還有script獲取的地址一定是要轉碼過的，不帶#的，下面這段話是微信官方給的

確保你獲取用來簽名的url是動態獲取的，動態頁面可參見實例代碼中php的實現方式。如果是html的靜態頁面在前端通過ajax將url傳到后臺簽名，前端需要用js獲取當前頁面除去'#'hash部分的鏈接（可用location.href.split('#')[0]獲取,而且需要encodeURIComponent），因為頁面一旦分享，微信客戶端會在你的鏈接末尾加入其它參數，如果不是動態獲取當前鏈接，將導致分享后的頁面簽名失敗。

上述功能文件打包懶人下載：

鏈接: https://pan.baidu.com/s/1aE-9h10EOgnC3yhwV5RXRQ   密碼: j27m