JS中静态页⾯实现分享功能
分享⽹页的时候，希望分享出来的链接是标题+描述+缩略图，开发代码⽰例⾥已提供了⽅法，但只适⽤于动态页⾯。我使⽤phpcms把页⾯⽣成了静态⽂件，⽰例代码就起不到作⽤了。在⽹上了下，有⼤神使⽤ajax实现静态页⾯也能实现分享功能，在这⾥分享给⼤家。
前台代码：
<script src="res.wx.qq/open/js/jweixin-1.0.0.js"></script>
<script>
url=location.href;
$.ajax({
type : "get",
url : "xxxxxxxxx/jssdk.php?url="+url,//替换⽹址，xxx根据⾃⼰jssdk⽂件位置修改
dataType : "jsonp",
jsonp: "callback",
jsonpCallback:"success_jsonpCallback",
success : function(data){
appId: data.appId,
timestamp: data.timestamp,
nonceStr: Str,
signature: data.signature,
jsApiList: [
"onMenuShareTimeline", //分享给好友
"onMenuShareAppMessage", //分享到朋友圈
"onMenuShareQQ", //分享到QQ
"onMenuShareWeibo" //分享到微博
]
});
},
error:function(data){
alert("连接失败！");
}
});
var shareData = {
title: '标题',
desc: '简介',//这⾥请特别注意是要去除html
link: '链接',
imgUrl: '题图'
};
});
</script>
记得把jquery的库也加上去，否则ajax不会运⾏
修改服务端⽂件jssdk.PHP
<?php
$url = $_GET['url'];
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();
$protocol = (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off' || $_SERVER['SERVER_PORT'] == 443) ? "" : "";
// $url = "$protocol$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]";
$url =$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
$data = json_decode(file_get_contents("jsapi_ticket.json"));
if ($data->expire_time < time()) {
$accessToken = $this->getAccessToken();
// 如果是企业号⽤以下 URL 获取 ticket
// $url = "qyapi.weixin.qq/cgi-bin/get_jsapi_ticket?access_token=$accessToken";
$url = "api.weixin.qq/cgi-bin/ticket/getticket?type=jsapi&access_token=$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($data));jquery是什么有什么作用
fclose($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()) {
// 如果是企业号⽤以下URL获取access_token
// $url = "qyapi.weixin.qq/cgi-bin/gettoken?corpid=$this->appId&corpsecret=$this->appSecret";
$url = "api.weixin.qq/cgi-bin/token?grant_type=client_credential&appid=$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;
}
}
$jssdk = new JSSDK("ID", "密钥",$url);//按照⾃⼰的填写
$signPackage = $jssdk->GetSignPackage();
$tmp=json_encode(array ('appId'=>$signPackage["appId"],'timestamp'=>$signPackage["timestamp"],'nonceStr'=>$signPackage["nonceStr"],'signature'=>$signPackage["signature"],'url'=>$signPackage["url"])); $callback = $_GET['callback'];
echo $callback.'('.$tmp.')';
exit;
>
其它的按照动态页⾯设置即可。
以上所述是⼩编给⼤家介绍的JS中静态页⾯实现分享功能，希望对⼤家有所帮助，如果⼤家有任何疑问请给我留⾔，⼩编会及时回复⼤家的。在此也⾮常感谢⼤家对
⽹站的⽀持！

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