H5纯静态页面转发分享到微信朋友圈带图片显示

实现H5纯静态页面分享到微信朋友圈带图片显示需要前提条件

1、微信公众号已成功认证

2、微信公众号中添加js安全域名

3、添加ip白名单（服务器外网ip）

HTML代码部分

<script src="https://res.wx.qq.com/open/js/jweixin-1.4.0.js" type="text/javascript"></script>
<script>
var curl = encodeURIComponent(window.location.href.split('#')[0]);
 $.ajax({
     type: "GET",
     url : "https://XXX.cn/hl_jssdk.php?url=" + curl,//替换网址，xxx根据自己jssdk文件位置修改
     dataType:'jsonp',
     success : function(data){
     	console.log(data)
          wx.config({
          	debug:false,
            appId: data.appId,
            timestamp: data.timestamp,
            nonceStr: data.nonceStr,
            signature: data.signature,
            jsApiList: ['checkJsApi','updateAppMessageShareData','updateTimelineShareData']
        });
},
    error:function(data){
        console.log(JSON.stringify(data))
    }
});
 
wx.ready(function () {
var option_config ={
        title: '自定义分享的标题',
        desc: '自定义分享的描述...',
        link: 'https://xxx.cn/',
        imgUrl: 'https://xxx.cn/images/share.png',
        success: function () {},
        cancel: function () {}
    };
    wx.updateTimelineShareData(option_config);
    wx.updateAppMessageShareData(option_config);
});
 
</script>

hl_jssdk.php代码部分

<?php
 
$url = urldecode($_GET['url']);
 
class HLJSSDK {
  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://";
    $url =$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->get_from_https($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 $access_token;
  }
//win服务器使用这个
  private function get_from_https($url) {
      $data = dfsockopen($url);
      if(!$data){
          $data = file_get_contents($url);
      }
      return $data;
  }
  private function httpGet($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;
  }
}
 
$jssdk = new HLJSSDK("wx4565e8c43db82b9d", "0367e1fbdd8a2f1f00e1fdbc4f999990",$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;
?>