Detailed explanation of sample code analysis of html static pages to implement WeChat sharing ideas

When sharing a web page on WeChat, you want the link to be shared to be title + description + thumbnail. The method is provided in the WeChat development code example, but it only applies to dynamic pages. Since dedecms generates static files, I actually want to use ajax to obtain jssdk parameters and also implement the WeChat sharing function. I will share it with you here.
Front-end HTML code example:

<script src="http://外部站点引入/js/jquery-1.11.1.min.js"></script>

<script src="http://res.wx.qq.com/open/js/jweixin-1.0.0.js"></script><script>var url=location.href;
  $.ajax({
    type : "get",
    url : "http://xxx/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: &#39;标题&#39;,
  desc: &#39;简介&#39;,//这里请特别注意是要去除html  link: &#39;链接&#39;,
  imgUrl: &#39;标题图&#39;
  };
  wx.onMenuShareAppMessage(shareData);
  wx.onMenuShareTimeline(shareData);
  wx.onMenuShareQQ(shareData);
  wx.onMenuShareWeibo(shareData);
    });</script>

Modify the server file jssdk.php

<?php$url = $_GET[&#39;url&#39;];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[&#39;HTTPS&#39;]) && $_SERVER[&#39;HTTPS&#39;] !== &#39;off&#39; || $_SERVER[&#39;SERVER_PORT&#39;] == 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=$nonceStr&timestamp=$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 (&#39;appId&#39;=>$signPackage["appId"],&#39;timestamp&#39;=>$signPackage["timestamp"],&#39;nonceStr&#39;=>$signPackage["nonceStr"],&#39;signature&#39;=>$signPackage["signature"],&#39;url&#39;=>$signPackage["url"]));$callback = $_GET[&#39;callback&#39;];echo $callback.&#39;(&#39;.$tmp.&#39;)&#39;;exit;
?>

Others can be set according to the dynamic page parameters.

The above is the detailed content of Detailed explanation of sample code analysis of html static pages to implement WeChat sharing ideas. For more information, please follow other related articles on the PHP Chinese website!