封装微信分享到朋友/朋友圈js

在页面引入：

<script src="/static/lib/jquery-2.2.2.min.js"></script>
<script src="http://res.wx.qq.com/open/js/jweixin-1.2.0.js"></script>
<script src="/static/src/wx_share/index.js?1"></script>
<script>
  wxShare.title='流量圈社群-你想要的合作资源在这里';
  wxShare.desc='项目找流量，流量找变现，资源找互换，就到流量圈社群！';
  wxShare.imgUrl='http://imgpro.lamahui.com/static/images/2017/08/15/b4485e74178d6d05d9e29ccdcd2f82712807.jpg';
  wxShare.ok();
</script>

index.js

$.get('/wxShare', { url: location.href.split('#')[0] } ,function(res) {

    wx.config({
        debug: false,
        appId: res.data.package.appId,
        timestamp: res.data.package.timestamp,
        nonceStr: res.data.package.nonceStr,
        signature: res.data.package.signature,
        jsApiList: [
            "onMenuShareAppMessage",
        	"onMenuShareTimeline",
        	"chooseImage",
        	"uploadImage",
        	"downloadImage"
        ]
    });
}).fail(function() { console.log('微信分享获取后台参数ajax失败！'); });

var wxShare = {
    ok: function() {
        var self = this;
        self.title = self.title;
        self.desc = self.desc;
        self.link = self.link || location.href;
        self.imgUrl = self.imgUrl;
        wx.ready(function() {
            wx.onMenuShareAppMessage({
                title: self.title,
                desc: self.desc,
                link: self.link,
                imgUrl: self.imgUrl,
                success: function() {
                    if (typeof self.successCallback === 'function') {
                        self.successCallback();
                    }
                },
                cancel: function() {
                    if (typeof self.cancelCallback === 'function') {
                        self.cancelCallback();
                    }
                }
            });
            wx.onMenuShareTimeline({
                title: self.title2 || self.title,
                desc: self.desc2 || self.desc,
                link: self.link2 || self.link,
                imgUrl: self.imgUrl2 || self.imgUrl,
                success: function() {
                    if (typeof self.successCallback2 === 'function') {
                        self.successCallback2();
                    } else if (typeof self.successCallback === 'function') {
                        self.successCallback();
                    }
                },
                cancel: function() {
                    if (typeof self.cancelCallback2 === 'function') {
                        self.cancelCallback2();
                    } else if (typeof self.cancelCallback === 'function') {
                        self.cancelCallback();
                    }
                }
            });
        });
    }
}

转载：http://blog.csdn.net/gengxuelei/article/details/52315762