记录微信分享功能开发

来源：互联网发布：股票行情软件哪家好编辑：程序博客网时间：2024/06/07 04:43

配置微信开发的服务器
配置js安全域名(一共可以配置3个)
这里使用官方的php js-sdk进行开发(注意此处有坑,如果在前端使用ajax进行调用的话需要按照微信开发文档要求往后台传当前url的值.如果不是则直接用官方的sdk不用修改就可以了),前台使用ajax调用方式的话后端php代码如下:

<?phprequire_once "JSSDK.php";//引入官方的sdk$url = @$_POST['url'];//前台传过来的url的值$jssdk = new JSSDK("微信appID", "微信secret");$signPackage = $jssdk->GetSignPackage(urldecode($url));echo json_encode($signPackage);

jssdk 代码:

<?phpclass JSSDK {  private $appId;  private $appSecret;  public function __construct($appId, $appSecret) {    $this->appId = $appId;    $this->appSecret = $appSecret;  }  public function getSignPackage($url) { //这里接收刚才传过来的url    $jsapiTicket = $this->getJsApiTicket();    // 注意 URL 一定要动态获取，不能 hardcode.    $protocol = (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off' || $_SERVER['SERVER_PORT'] == 443) ? "https://" : "http://";    //把原来获取url的方式给注释掉,需要使用前台传过来的url值    //$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=$nonceStr&timestamp=$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    $data = json_decode($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);  }}

前端js代码:

//需要引入的微信js文件<script src="http://res.wx.qq.com/open/js/jweixin-1.2.0.js" type="text/javascript"></script><script type="text/javascript">$(function(){  //页面加载完就执行下面分享的函数  configWechatShare();});function configWechatShare(){    //微信分享配置    var href=encodeURIComponent(window.location.href.split('#')[0]); //这个url需要进行相应的处理之后才能转送到后台    // console.log(href);    var shareTitle="分享的标题";    var shareDes="分享的描述";    var shareLogo="http://www.dcmdf.com/Public/Homes/imageg/shareLogo.jpg"; // 分享的logo的url 尺寸300*300    var shareLink="http://www.dcmdf.com"; //分享的链接    $.ajax({//上面第一段代码的url,需要去那里请求微信返回的加密签名        url:'http://www.dcmdf.com/index.php/Home/Index/wechat',        dataType:"json",        type:"POST",        data:{"url":href},        success:function(json){            // console.log(json)            wx.config({                debug: false, // 进行调试的时候打开,会把报错信息alert出来                appId: json.appId,                timestamp: json.timestamp,                nonceStr: json.nonceStr,                signature: json.signature,                //你需要的接口列表                jsApiList: ['onMenuShareTimeline','onMenuShareAppMessage']            });            // console.log(wx.config)        }    });    var options={        title: shareTitle,        link: shareLink,        desc:shareDes,        imgUrl: shareLogo,        success: function () {         console.log("aaaaaaa")        },        cancel: function () {            console.log("失败")        }    };   wx.ready(function(){        wx.onMenuShareAppMessage(options);        wx.onMenuShareTimeline(options);   });   wx.error(function(res){        console.log("失败");   });};

上面是前台通过ajax调用获取加密签名方式的所有代码,如果是直接用php直接返回加密签名就更简单了,不用往后台传送url了,jssdk里的url可以直接使用官方给的那种方式就可以

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