要求:
1、需要一个公众号,实名认证,并且有分享接口权限
2、icp备案域名
微信公众平台配置就不说了。流程为:获取AppId、AppSecret ——>填写线上访问的安全域名——>下载MP-xxxx-xx.txt的文件(放在服务器根目录)。
接下来附上代码:
前端部分:
<script src="http://res.wx.qq.com/open/js/jweixin-1.0.0.js"></script>
<script>
window.onload = function(){
$.support.cors = true;
var url = location.href.split('#')[0];
$.ajax({
url: "xxxxxxxxx/index.php",
type: "post",
typeType: "json",
data: {url:url},
async: false,
success: function(data) {
var _data = data;
var result = eval('('+ _data +')');
appid = result.appId;
timestamp = result.timestamp;
nonceStr = result.nonceStr;
signature = result.signature;
},
});
wx.config({
debug: false,
appId: appid,
timestamp: timestamp,
nonceStr: nonceStr,
signature: signature,
jsApiList: [
'onMenuShareAppMessage',
'onMenuShareTimeline',
]
});
wx.ready(function() {
wx.checkJsApi({
jsApiList: [
'onMenuShareAppMessage',
'onMenuShareTimeline',
]
})
var shareData = {
title: '项目的title',
desc: '项目的描述',
link: '项目网址',
shareUrl: '分享网址',
imgUrl: '分享的图标',
};
wx.onMenuShareAppMessage(shareData); //分享好友
wx.onMenuShareTimeline(shareData); //分享朋友圈
});
}
</script>
后台php:
index.php:
<?php
#导入微信分享调用库
include('./jssdk/jssdk.php');
$url = $_POST["url"];
$appid = '你的开发者Id';
$appsecret = '你的开发者密码';
$jssdk = new JSSDK($appid, $appsecret, $url);
$signPackage = $jssdk->GetSignPackage();
$appId = $signPackage['appId'];
$timestamp = $signPackage['timestamp'];
$nonceStr = $signPackage['nonceStr'];
$signature = $signPackage['signature'];
$data = array("appId"=>$appId,"timestamp"=>$timestamp,"nonceStr"=>$nonceStr,"signature"=>$signature); //返回给前端的数据
//var_dump($trans_data);
echo json_encode($data,true);
?>
jssdk.php:
<?php
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();
// 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]$_SERVER[REQUEST_URI]";
//$url = "http://www.manwei99.com/h5/gmj/index.html";
$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=$nonceStr×tamp=$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
$data = json_decode($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);
}
}
access_token.php:
<?php exit();?>
{"access_token":"","expire_time":0}
jsapi_ticket.php:
<?php exit();?>
{"jsapi_ticket":"","expire_time":0}
效果: