后台代码
jssdk.PHP——因sae的不可写环境，故需要将accesstoken和JsApiTicket存入数据库。
数据库字段：id（int 3），accesstoken（string 255），lasttime（int 10）
<?php
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() {
$accessToken = $this -> getAccesstoken();
$lastAT = M(‘accesstoken‘)->find(2);//1:token;2:ticket
if(!$lastAT){
M(‘accesstoken‘) -> add(array(‘id‘=>2,‘accesstoken‘=>‘null‘,‘lasttime‘=>0));
$lastAT[‘lasttime‘] = 0;
}
$ticket = $lastAT[‘accesstoken‘];
$now = NOW_TIME;
$timecha = $now - $lastAT[‘lasttime‘];
if($timecha >= 7200){
// $url = ‘https://api.weixin.qq.com/cgi-bin/ticket/getticket?‘ . http_build_query ( $param );
// $content = file_get_contents ( $url );
// $content = json_decode ( $content, true );
// 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;
$data[‘accesstoken‘] = $ticket;
$data[‘lasttime‘] = NOW_TIME;
M(‘accesstoken‘)->where(array(‘id‘=>2))->save($data);
}
return $ticket;
}
//sae无法写入操作，改从数据库获取
private function getAccessToken() {
$param[‘grant_type‘] = ‘client_credential‘;
$param[‘appid‘] = C("APPID");
$param[‘secret‘] = C("SECRET");
$lastAT = M(‘accesstoken‘)->find(1);
$accesstoken = $lastAT[‘accesstoken‘];
if(!$lastAT){
M(‘accesstoken‘) -> add(array(‘id‘=>1,‘accesstoken‘=>‘null‘,‘lasttime‘=>0));
$lastAT[‘lasttime‘] = 0;
}
$now = NOW_TIME;
$timecha = $now - $lastAT[‘lasttime‘];
if($timecha >= 7200){
$url = ‘https://api.weixin.qq.com/cgi-bin/token?‘ . http_build_query ( $param );
$content = file_get_contents ( $url );
$content = json_decode ( $content, true );
$data[‘accesstoken‘] = $content[‘access_token‘];
$data[‘lasttime‘] = NOW_TIME;
M(‘accesstoken‘)->where(array(‘id‘=>1))->save($data);
$accesstoken = $content[‘access_token‘];
}
$lastAT = M(‘accesstoken‘)->find(1);
return $accesstoken;
}
private function httpGet($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);
}
}
如果你的服务器是可写环境，可以使用官方提供的包。
前台文件
可以使用include将此文件包含在需要页面
<?php
include(‘jssdk.php‘);
$jssdk = new JSSDK(C(‘APPID‘), C(‘SECRET‘));
if(isWeixinBrowser()){
$signPackage = $jssdk->GetSignPackage();
}
?>
<script type="text/javascript" src="http://res.wx.qq.com/open/js/jweixin-1.0.0.js"></script>
<script>
wx.config({
debug: false, // 开启调试模式,调用的所有api的返回值会在客户端alert出来，若要查看传入的参数，可以在pc端打开，参数信息会通过log打出，仅在pc端时才会打印。
appId: ‘<?php echo $signPackage["appId"];?>‘, // 必填，公众号的唯一标识
timestamp: <?php echo $signPackage["timestamp"];?>, // 必填，生成签名的时间戳
nonceStr: ‘<?php echo $signPackage["nonceStr"];?>‘, // 必填，生成签名的随机串
signature: ‘<?php echo $signPackage["signature"];?>‘,// 必填，签名，见附录1
jsApiList: [
‘checkJsApi‘,
‘onMenuShareTimeline‘,
‘onMenuShareAppMessage‘,
‘onMenuShareQQ‘,
‘onMenuShareWeibo‘
] // 必填，需要使用的JS接口列表，所有JS接口列表见附录2
});
wx.ready(function () {
// 1 判断当前版本是否支持指定 JS 接口，支持批量判断
wx.checkJsApi({
jsApiList: [
‘getNetworkType‘,
‘previewImage‘,
‘onMenuShareTimeline‘,
‘onMenuShareAppMessage‘,
‘onMenuShareQQ‘,
‘onMenuShareWeibo‘
],
/* success: function (res) {
alert(JSON.stringify(res));
} */
});
var shareData = {
title: document.title,
<notempty name="page_title">
desc: ‘我在‘+‘{:C(‘WEB_SITE_TITLE‘)}‘+‘发现了非常不错的宝贝:‘+‘{$page_title}‘+‘快来看看吧！‘,
<else/>
desc: ‘我发现了个很不错的商城‘+‘{:C(‘WEB_SITE_TITLE‘)}‘+‘快来看看吧！‘,
</notempty>
link: window.location.href,
<notempty name="page_title">
imgUrl: document.getElementById("detail_img").src,
<else/>
imgUrl: ‘{:get_cover(get_cover_id(34),‘path‘)}‘,
</notempty>
/* trigger: function (res) {
alert(‘用户点击发送给朋友‘);
}, */
success: function (res) {
alert(‘感谢您的分享‘);
},
cancel: function (res) {
alert(‘请主公三思，分享一下吧(ㄒoㄒ)~~‘);
},
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>
出处：blog.csdn.NET/afanxingzhou
时间： 2024-12-12 20:35:33