设置微信分享的标题 缩略图 连接 描述

<script>
var imgUrl = 'http://topic.xcar.com.cn/201403/ad_q3/pic/banner.jpg';
var lineLink = 'http://topic.xcar.com.cn/201403/ad_q3/index.php';
var descContent = "http://topic.xcar.com.cn/201403/ad_q3/index.php";
var shareTitle = '【奥迪Q3开启尊享礼遇季】报名试驾，赢取精美礼品';
var appid = 'wxc9937e3a66af6dc8';

function shareFriend() {
    WeixinJSBridge.invoke('sendAppMessage',{
                            "appid": appid,
                            "img_url": imgUrl,
                            "img_width": "640",
                            "img_height": "640",
                            "link": lineLink,
                            "desc": descContent,
                            "title": shareTitle
                            }, function(res) {
                            _report('send_msg', res.err_msg);
                            })
}
function shareTimeline() {
    WeixinJSBridge.invoke('shareTimeline',{
                            "img_url": imgUrl,
                            "img_width": "640",
                            "img_height": "640",
                            "link": lineLink,
                            "desc": descContent,
                            "title": shareTitle
                            }, function(res) {
                            _report('timeline', res.err_msg);
                            });
}
function shareWeibo() {
    WeixinJSBridge.invoke('shareWeibo',{
                            "content": descContent,
                            "url": lineLink,
                            }, function(res) {
                            _report('weibo', res.err_msg);
                            });
}
// 当微信内置浏览器完成内部初始化后会触发WeixinJSBridgeReady事件。
document.addEventListener('WeixinJSBridgeReady', function onBridgeReady() {

        // 发送给好友
        WeixinJSBridge.on('menu:share:appmessage', function(argv){
            shareFriend();
            });

        // 分享到朋友圈
        WeixinJSBridge.on('menu:share:timeline', function(argv){
            shareTimeline();
            });

        // 分享到微博
        WeixinJSBridge.on('menu:share:weibo', function(argv){
            shareWeibo();
            });
        }, false);
</script>

另一微信分享JS下载

说明：页面上需新建mate标签如下代码：

<meta name="sharecontent" data-msg-img="缩略图地址" data-msg-title="标题" data-msg-content="简介" data-msg-callBack="" data-line-img="缩略图地址" data-line-title="标题" data-line-callBack=""/>