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微信分享网页链接带图标和摘要的完美解决方法

2019-11-07   Umming   js常用代码    评论(0)    浏览(2857)


首先你必须有一个微信公众号,然后把你的网站ip地址输入公众号ip白名单。

微信分享网页链接带图标和摘要的完美解决方法微信分享网页链接带图标和摘要的完美解决方法


步骤一:验证文件并且绑定域名

微信分享网页链接带图标和摘要的完美解决方法

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”。

步骤二:引入JS文件


<script src="http://res.wx.qq.com/open/js/jweixin-1.2.0.js"></script>
<script>
    var  url=location.href;
    $.ajax({
        type : "get",
        //这里是放在根目录如新建文件夹则url:"http://这里改为你自己的网址.com/文件夹名/jssdk.php?url="+url
        url : "http://这里改为你自己的网址.com/jssdk.php?url="+url,
        dataType : "jsonp",
        jsonp: "callback",
        jsonpCallback:"success_jsonpCallback",
        success : function(data){
            wx.config({
                debug: false,
                appId: data.appId,
                timestamp: data.timestamp,
                nonceStr: data.nonceStr,
                signature: data.signature,
                jsApiList: [
                    'onMenuShareTimeline',//
                    'onMenuShareAppMessage',
                    'onMenuShareQQ',
                    'onMenuShareWeibo',
                    'onMenuShareQZone'
                ]
            });
        },
        error:function(data){
            alert("连接失败!");
        }
    });
    wx.ready(function () {
        var shareData = {
            title: '这是是分享标题',
            desc: '这是是摘要',
            link: url,
            imgUrl: '这里改为你网站域名下的小图标文件的地址'
        };
        wx.onMenuShareAppMessage(shareData);//分享给好友
        wx.onMenuShareTimeline(shareData);//分享到朋友圈
        wx.onMenuShareQQ(shareData);//分享给手机QQ
        wx.onMenuShareWeibo(shareData);//分享腾讯微博
        wx.onMenuShareQZone(shareData);//分享到QQ空间
    });
    wx.error(function (res) {
        //alert(res.errMsg);//错误提示
    });
</script>

url : "http://这里改为你自己的网址.com/jssdk.php?url="+url,

这个网站不必须是目前的网址,如果你有多个网站,可以引用同一个jssdk.php文件。

步骤三:创建PHP文件   jssdk.php(对于jssdk.php文件我们可以直接放根目录,也可新建文件夹,用文件的话注意文件路径!)


<?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) ? "https://" : "http://";
        // $url = "$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=$nonceStr&timestamp=$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
        $data = json_decode(file_get_contents("jsapi_ticket.json"));
        if ($data->expire_time < time()) {
            $accessToken = $this->getAccessToken();
            // 如果是企业号用以下 URL 获取 ticket
            // $url = "https://qyapi.weixin.qq.com/cgi-bin/get_jsapi_ticket?access_token=$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;
                $fp = fopen("jsapi_ticket.json", "w");
                fwrite($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()) {
            // 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;
                $fp = fopen("access_token.json", "w");
                fwrite($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;
    }
}
 
$jssdk = new JSSDK("wx********************a", "*************************",$url);
$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;
?>

只要改一下这一行为你自己的:

$jssdk = new JSSDK("wx********************", "*************************",$url);

微信分享网页链接带图标和摘要的完美解决方法

最后,别忘了存放这个PHP的文件夹权限为可写(如果放在网站根目录请忽略)。

(PS:微信对分享内容大小有限制,如果自定义图标文件过大,不然会导致描述不显示,图片最好控制在30Kb左右,图片比例5:4)

测试效果:

微信扫一扫,分享查看

标签: 微信公众号

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