网页链接分享到微信朋友圈带图标和摘要的方法

先看效果：

  

我不喜欢回形针。

以前我仅仅把网页开始的地方放一个不可见的图片，后来发现没有效果。

现在我们开始：

原料:微信公众号：

步骤一：绑定域名

先登录微信公众平台进入“公众号设置”的“功能设置”里填写“JS接口安全域名”。

步骤二：引入JS文件

 src="http://res.wx.qq.com/open/js/jweixin-1.2.0.js">

PHP:

$jssdk = new JSSDK("这里是你的AppID", "这里是你的AppSecret");   //这里改成你自己公众号里的$signPackage = $jssdk->GetSignPackage();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() {    // 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    $data = json_decode($this->get_php_file("jsapi_ticket.php"));    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;        $this->set_php_file("jsapi_ticket.php", json_encode($data));      }    } 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    $data = json_decode($this->get_php_file("access_token.php"));    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;        $this->set_php_file("access_token.php", json_encode($data));      }    } else {      $access_token = $data->access_token;    }    return $access_token;  }  private function httpGet($url) {    $curl = curl_init();    curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);    curl_setopt($curl, CURLOPT_TIMEOUT, 500);    // 为保证第三方服务器与微信服务器之间数据传输的安全性，所有微信接口采用https方式调用，必须使用下面2行代码打开ssl安全校验。    // 如果在部署过程中代码在此处验证失败，请到 http://curl.haxx.se/ca/cacert.pem 下载新的证书判别文件。    curl_setopt($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);  }}

js:

   wx.config({    debug: false,    appId: '<?php echo $signPackage["appId"];?>',    timestamp: <?php echo $signPackage["timestamp"];?>,    nonceStr: '<?php echo $signPackage["nonceStr"];?>',    signature: '<?php echo $signPackage["signature"];?>',    jsApiList: [            'onMenuShareTimeline', //            'onMenuShareAppMessage',            'onMenuShareQQ',            'onMenuShareWeibo',  'onMenuShareQZone'    ]  });  wx.ready(function () {    var shareData = {title: '<?php echo "标题";?>',   desc: '<?php echo "摘要";?>',  //如果要换行的话：\nlink: '<?php echo "链接url";?>',//可以不写imgUrl: '<?php echo "图片链接";?>',success: function () {   // 用户确认分享后执行的回调函数  //alert('分享成功');  },  cancel: function () {   // 用户取消分享后执行的回调函数  //alert('取消了分享'); }  };      wx.onMenuShareAppMessage(shareData);//分享给好友    wx.onMenuShareTimeline(shareData);//分享到朋友圈    wx.onMenuShareQQ(shareData);//分享给手机QQ  wx.onMenuShareWeibo(shareData);//分享腾讯微博  wx.onMenuShareQZone(shareData);//分享到QQ空间      });wx.error(function (res) {  //alert(res.errMsg);//错误提示  });

测试效果：

扫一扫，输入”马亮武“，查询并分享