分享网页链接到微信朋友圈或朋友

前提

  1. 微信自6.5.5版本起对分享网页链接做了限制,如果不接入JSSDK,则分享出去的内容不会显示自定义的图片,而是显示一张默认图片
  2. 使用JSSDK进行分享时,需要一个经过微信认证的服务号或者订阅号,并在公众号平台查询是否有分享接口的权限;

公众号设置

在进行代码开发前,需要到公众号平台上做一些设置:

  1. 到“开发 -> 基本设置“页面获取AppId和AppSecret,并设置ip白名单;
  2. 到“设置 -> 公众号设置“的“功能设置”tab添加JS接口安全域名;

代码(PHP)

1)jssdk.php

appId = $appId;  
    $this->appSecret = $appSecret;  
  }

  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]";  
  
    $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() {  
      
      $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;  
        
    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  
    // 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;  
       
    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;  
  }  
}
  1. weixin.php
GetSignPackage(); 

include("tpl/weixin.html”);
  1. weixin.html



    ;



  

This is a test page.



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