微信自定义分享链接信息（标题，图片和内容）实现过程详解

http://res.wx.qq.com/open/js/jweixin-1.2.0.js

wx.config({
  debug: true, // 开启调试模式,调用的所有api的返回值会在客户端alert出来，若要查看传入的参数，可以在pc端打开，参数信息会通过log打出，仅在pc端时才会打印。
  appId: '', // 必填，公众号的唯一标识
  timestamp: , // 必填，生成签名的时间戳
  nonceStr: '', // 必填，生成签名的随机串
  signature: '',// 必填，签名，见附录1
  jsApiList: [] // 必填，需要使用的JS接口列表，所有JS接口列表见附录2
});

+ (currentLink.indexOf("?") > -1 ? ("&u=" + "${u!}" + "&t=" + "${t!}" + "&o=" + "${o!}" + "&s=" + "${s!}") : ("?u=" + "${u!}" + "&t=" + "${t!}" + "&o=" + "${o!}" + "&s=" + "${s!}"));
      shareLink = shareLink + (shareLink.indexOf("?") > -1 ? ("&city=" + "深圳") : ("?city=" + "深圳"));
  var shareImgUrl = "${IMGPATH!}/images/banner2.png";
  var shareGid = "";

  wx.ready(function () {
    //分享给朋友
    wx.onMenuShareAppMessage({
      title: shareTitle,
      desc: shareDesc,
      link: shareLink,
      imgUrl: shareImgUrl,
      success: function (res) {
          shared(shareLink, "friend", shareGid);
        },
        fail: function (res) {
         alert(JSON.stringify(res));
        }
    });
    //分享到朋友圈
    wx.onMenuShareTimeline({
      title: shareTitle,
      desc: shareDesc,
      link: shareLink,
      imgUrl: shareImgUrl,
      success: function (res) {
          shared(shareLink, "Timeline", shareGid);
        },
        fail: function (res) {
         alert(JSON.stringify(res));
        }
    });
     //分享到QQ
    wx.onMenuShareQQ({
      title: shareTitle,
      desc: shareDesc,
      link: shareLink,
      imgUrl: shareImgUrl,
      success: function (res) {
          shared(shareLink, "QQ", shareGid);
        },
        fail: function (res) {
         alert(JSON.stringify(res));
        }
    });
     //分享到腾讯QQ
    wx.onMenuShareWeibo({
      title: shareTitle,
      desc: shareDesc,
      link: shareLink,
      imgUrl: shareImgUrl,
      success: function (res) {
          shared(shareLink, "Weibo", shareGid);
        },
        fail: function (res) {
         alert(JSON.stringify(res));
        }
    });
     //分享到QZone
    wx.onMenuShareQZone({
      title: shareTitle,
      desc: shareDesc,
      link: shareLink,
      imgUrl: shareImgUrl,
      success: function (res) {
          shared(shareLink, "QZone", shareGid);
        },
        fail: function (res) {
         alert(JSON.stringify(res));
        }
    });
  });
  function shared(url, type, gid){
    var rUrl = basePath + "/share/add?type=" + type + "&url=" + encodeURI(url);
    if(!!gid) {
      rUrl += "&gid=" + gid;
    }
    $.ajax({
      type: "GET",
      url: rUrl,
      dataType: "json",
      success: function(rs){
        //alert("分享成功");
      }
    });
  }
  " _ue_custom_node_="true">