在网站根目录下新建js目录，放入以下2个文件

js/jssdk.php
js/share.js

jssdk.php 代码如下

						share.js代码如下
url=location.href;
$.ajax({
type:"get",url:"../js/jssdk.php?url="+url,dataType:"jsonp",jsonp:"callback",jsonpCallback:"success_jsonpCallback",success:function(data){
wx.config({
appId:data.appId,timestamp:data.timestamp,nonceStr:data.nonceStr,signature:data.signature,jsApiList:['chackJsApi','onMenuShareTimeline','onMenuShareAppMessage','onMenuShareQQ','onMenuShareWeibo','onMenuShareQZone']
});
},error:function(data){
alert("连接失败！");
}
});
wx.ready(function(){
varshareData={

title:title,desc:desc,link:url,imgUrl:img,success:function(res){
//分享成功
},cancel:function(res){
alert('已取消分享');
}
};
wx.onMenuShareAppMessage(shareData);
wx.onMenuShareTimeline(shareData);
wx.onMenuShareQQ(shareData);
wx.onMenuShareWeibo(shareData);
wx.onMenuShareQZone(shareData);
});


						部署方式 页面底部添加如下代码