链接从微信分享到朋友圈显示图片及自定义文字的方法，静态html调用微信sdk实现分享

微信已出新的分享Api ，自己去看官网.

引入 js 文件

<script src="https://cdn.bootcss.com/jquery/1.11.1/jquery.min.js"></script>

<script src="http://res.wx.qq.com/open/js/jweixin-1.0.0.js"></script>

html 页 写 js

    <script>    

  var url=encodeURIComponent(window.location.href.split('#')[0]);

  $.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){

        console.log(data);

        wx.config({   

            debug:true,   //debug 生产环境改为 false

            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: '测试',

  desc: '测试简介.',//这里请特别注意是要去除html

  link: 'http://www.baidu.com',//分享链接

  imgUrl:'图片路径'

  };

  wx.onMenuShareAppMessage(shareData);

  wx.onMenuShareTimeline(shareData);

  wx.onMenuShareQQ(shareData);

  wx.onMenuShareWeibo(shareData);

});

</script>  

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=$nonceStr&timestamp=$timestamp&url=$url";

    $signature = sha1($string);

    $signPackage = array(

      "appId"     => $this->appId,

      "nonceStr"  => $nonceStr,

      "timestamp" => $timestamp,

      "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;

  }

}

$jssdk = new JSSDK("AppId", "AppSecret",$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"]));

$callback = $_GET['callback'];

echo $callback.'('.$tmp.')'; 

exit;

?>

提示

4.1  公众号设置js域名.

4.2  MP_verify_1PD63C7oVxdoEKCF.txt 传到相应目录.

4.3 白名单设置.

其他问题请留言.