一:准备文件,并将文件置于网站根目录下
access_token.json
{"access_token":"","expire_time":0}
jsapi_ticket.json
{"jsapi_ticket":"","expire_time":0}
jssdk.php
<?php class JSSDK { private $appId; private $appSecret; public function __construct($appId, $appSecret) { $this->appId = $appId; $this->appSecret = $appSecret; } public function getSignPackage() { $jsapiTicket = $this->getJsApiTicket(); $url = "http://$_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 $data = json_decode(file_get_contents("jsapi_ticket.json")); if ($data->expire_time < time()) { $accessToken = $this->getAccessToken(); $url = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?type=jsapi&access_token=$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()) { $url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=$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; } }
二:编辑显示页面对应的后台PHP文件,添加如下代码
include('jssdk.php'); $jssdk = new JSSDK("APPID", "APPSECRET"); $signPackage = $jssdk->GetSignPackage(); $this->signPackage = $signPackage;
请将APPID和APPSECRET换成您自己微信账号的信息
三:编辑显示页面模板html文件,添加如下代码
<script src="http://res.wx.qq.com/open/js/jweixin-1.0.0.js"></script> <script> wx.config({ appId: '{suetech:$signPackage.appId}', timestamp: {suetech:$signPackage.timestamp}, nonceStr: '{suetech:$signPackage.nonceStr}', signature: '{suetech:$signPackage.signature}', jsApiList: [ 'checkJsApi', 'onMenuShareTimeline', 'onMenuShareAppMessage', 'onMenuShareQQ', 'onMenuShareWeibo' ] }); /* * 注意: * 1. 所有的JS接口只能在公众号绑定的域名下调用,公众号开发者需要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”。 * 2. 如果发现在 Android 不能分享自定义内容,请到官网下载最新的包覆盖安装,Android 自定义分享接口需升级至 6.0.2.58 版本及以上。 * 3. 完整 JS-SDK 文档地址:http://mp.weixin.qq.com/wiki/7/aaa137b55fb2e0456bf8dd9148dd613f.html * * 如有问题请通过以下渠道反馈: * 邮箱地址:[email protected] * 邮件主题:【微信JS-SDK反馈】具体问题 * 邮件内容说明:用简明的语言描述问题所在,并交代清楚遇到该问题的场景,可附上截屏图片,微信团队会尽快处理你的反馈。 */ wx.ready(function () { // 1 判断当前版本是否支持指定 JS 接口,支持批量判断 wx.checkJsApi({ jsApiList: [ 'getNetworkType', 'previewImage', 'onMenuShareTimeline', 'onMenuShareAppMessage', 'onMenuShareQQ', 'onMenuShareWeibo' ], success: function (res) { alert(JSON.stringify(res)); } }); var shareData = { title: '标题', desc: '描述', link: '链接', imgUrl: '图片', trigger: function (res) { alert('用户点击发送给朋友'); }, success: function (res) { alert('已分享'); }, cancel: function (res) { alert('已取消'); }, fail: function (res) { alert(JSON.stringify(res)); } }; wx.onMenuShareAppMessage(shareData); wx.onMenuShareTimeline(shareData); wx.onMenuShareQQ(shareData); wx.onMenuShareWeibo(shareData); }); wx.error(function (res) { alert(res.errMsg); }); </script>
到此已经能够正常进行微信自定义分享了
需要注意的地方是在微信公众账号中配置您的域名,设置方法:
登陆微信公众账号->公众号设置->功能设置->JS接口安全域名->设置