js实现微信分享代码

通常自己做的一个页面想通过微信像朋友分享时，展示的标题和描述都是不是自己想要的，自己查了一些资料，原来是通过js来进行控制
展示效果如下：

标题、描述、还有分享的图片都是有js来控制的。
js代码如下

另一个微信分享js代码：

var WeixinApi = (function () {

 "use strict";

 
 function weixinShareTimeline(data, callbacks) {
 callbacks = callbacks || {};
 var shareTimeline = function (theData) {
 WeixinJSBridge.invoke('shareTimeline', {
 "appid":theData.appId ? theData.appId : '',
 "img_url":theData.imgUrl,
 "link":theData.link,
 "desc":theData.title,
 "title":theData.desc, // 注意这里要分享出去的内容是desc
 "img_width":"640",
 "img_height":"640"
 }, function (resp) {
 switch (resp.err_msg) {
  // share_timeline:cancel 用户取消
  case 'share_timeline:cancel':
  callbacks.cancel && callbacks.cancel(resp);
  break;
  // share_timeline:confirm 发送成功
  case 'share_timeline:/confirm/i':
  case 'share_timeline:ok':
  callbacks.confirm && callbacks.confirm(resp);
  break;
  // share_timeline:fail　发送失败
  case 'share_timeline:fail':
  default:
  callbacks.fail && callbacks.fail(resp);
  break;
 }
 // 无论成功失败都会执行的回调
 callbacks.all && callbacks.all(resp);
 });
 };
 WeixinJSBridge.on('menu:share:timeline', function (argv) {
 if (callbacks.async && callbacks.ready) {
 window["_wx_loadedCb_"] = callbacks.dataLoaded || new Function();
 if(window["_wx_loadedCb_"].toString().indexOf("_wx_loadedCb_") > 0) {
  window["_wx_loadedCb_"] = new Function();
 }
 callbacks.dataLoaded = function (newData) {
  window["_wx_loadedCb_"](newData);
  shareTimeline(newData);
 };
 // 然后就绪
 callbacks.ready && callbacks.ready(argv);
 } else {
 // 就绪状态
 callbacks.ready && callbacks.ready(argv);
 shareTimeline(data);
 }
 });
 }

 
 function weixinSendAppMessage(data, callbacks) {
 callbacks = callbacks || {};
 var sendAppMessage = function (theData) {
 WeixinJSBridge.invoke('sendAppMessage', {
 "appid":theData.appId ? theData.appId : '',
 "img_url":theData.imgUrl,
 "link":theData.link,
 "desc":theData.desc,
 "title":theData.title,
 "img_width":"640",
 "img_height":"640"
 }, function (resp) {
 switch (resp.err_msg) {
  // send_app_msg:cancel 用户取消
  case 'send_app_msg:cancel':
  callbacks.cancel && callbacks.cancel(resp);
  break;
  // send_app_msg:confirm 发送成功
  case 'send_app_msg:/confirm/i':
  case 'send_app_msg:ok':
  callbacks.confirm && callbacks.confirm(resp);
  break;
  // send_app_msg:fail　发送失败
  case 'send_app_msg:fail':
  default:
  callbacks.fail && callbacks.fail(resp);
  break;
 }
 // 无论成功失败都会执行的回调
 callbacks.all && callbacks.all(resp);
 });
 };
 WeixinJSBridge.on('menu:share:appmessage', function (argv) {
 if (callbacks.async && callbacks.ready) {
 window["_wx_loadedCb_"] = callbacks.dataLoaded || new Function();
 if(window["_wx_loadedCb_"].toString().indexOf("_wx_loadedCb_") > 0) {
  window["_wx_loadedCb_"] = new Function();
 }
 callbacks.dataLoaded = function (newData) {
  window["_wx_loadedCb_"](newData);
  sendAppMessage(newData);
 };
 // 然后就绪
 callbacks.ready && callbacks.ready(argv);
 } else {
 // 就绪状态
 callbacks.ready && callbacks.ready(argv);
 sendAppMessage(data);
 }
 });
 }

 
 function weixinShareWeibo(data, callbacks) {
 callbacks = callbacks || {};
 var shareWeibo = function (theData) {
 WeixinJSBridge.invoke('shareWeibo', {
 "content":theData.desc,
 "url":theData.link
 }, function (resp) {
 switch (resp.err_msg) {
  // share_weibo:cancel 用户取消
  case 'share_weibo:cancel':
  callbacks.cancel && callbacks.cancel(resp);
  break;
  // share_weibo:confirm 发送成功
  case 'share_weibo:/confirm/i':
  case 'share_weibo:ok':
  callbacks.confirm && callbacks.confirm(resp);
  break;
  // share_weibo:fail　发送失败
  case 'share_weibo:fail':
  default:
  callbacks.fail && callbacks.fail(resp);
  break;
 }
 // 无论成功失败都会执行的回调
 callbacks.all && callbacks.all(resp);
 });
 };
 WeixinJSBridge.on('menu:share:weibo', function (argv) {
 if (callbacks.async && callbacks.ready) {
 window["_wx_loadedCb_"] = callbacks.dataLoaded || new Function();
 if(window["_wx_loadedCb_"].toString().indexOf("_wx_loadedCb_") > 0) {
  window["_wx_loadedCb_"] = new Function();
 }
 callbacks.dataLoaded = function (newData) {
  window["_wx_loadedCb_"](newData);
  shareWeibo(newData);
 };
 // 然后就绪
 callbacks.ready && callbacks.ready(argv);
 } else {
 // 就绪状态
 callbacks.ready && callbacks.ready(argv);
 shareWeibo(data);
 }
 });
 }


 
 function weixinGeneralShare(data, callbacks) {
 callbacks = callbacks || {};
 var generalShare = function (general,theData) {

 // 如果是分享到朋友圈，则需要把title和desc交换一下
 if(general.shareTo == 'timeline') {
 var title = theData.title;
 theData.title = theData.desc || title;
 theData.desc = title;
 }

 // 分享出去
 general.generalShare({
 "appid":theData.appId ? theData.appId : '',
 "img_url":theData.imgUrl,
 "link":theData.link,
 "desc":theData.desc,
 "title":theData.title,
 "img_width":"640",
 "img_height":"640"
 }, function (resp) {
 switch (resp.err_msg) {
  // general_share:cancel 用户取消
  case 'general_share:cancel':
  callbacks.cancel && callbacks.cancel(resp ,general.shareTo);
  break;
  // general_share:confirm 发送成功
  case 'general_share:/confirm/i':
  case 'general_share:ok':
  callbacks.confirm && callbacks.confirm(resp ,general.shareTo);
  break;
  // general_share:fail　发送失败
  case 'general_share:fail':
  default:
  callbacks.fail && callbacks.fail(resp ,general.shareTo);
  break;
 }
 // 无论成功失败都会执行的回调
 callbacks.all && callbacks.all(resp ,general.shareTo);
 });
 };
 WeixinJSBridge.on('menu:general:share', function (general) {
 if (callbacks.async && callbacks.ready) {
 window["_wx_loadedCb_"] = callbacks.dataLoaded || new Function();
 if(window["_wx_loadedCb_"].toString().indexOf("_wx_loadedCb_") > 0) {
  window["_wx_loadedCb_"] = new Function();
 }
 callbacks.dataLoaded = function (newData) {
  window["_wx_loadedCb_"](newData);
  generalShare(general,newData);
 };
 // 然后就绪
 callbacks.ready && callbacks.ready(general,general.shareTo);
 } else {
 // 就绪状态
 callbacks.ready && callbacks.ready(general,general.shareTo);
 generalShare(general,data);
 }
 });
 }

 
 function addContact(appWeixinId,callbacks){
 callbacks = callbacks || {};
 WeixinJSBridge.invoke("addContact", {
 webtype: "1",
 username: appWeixinId
 }, function (resp) {
 var success = !resp.err_msg || "add_contact:ok" == resp.err_msg || "add_contact:added" == resp.err_msg;
 if(success) {
 callbacks.success && callbacks.success(resp);
 }else{
 callbacks.fail && callbacks.fail(resp);
 }
 })
 }

 
 function imagePreview(curSrc,srcList) {
 if(!curSrc || !srcList || srcList.length == 0) {
 return;
 }
 WeixinJSBridge.invoke('imagePreview', {
 'current' : curSrc,
 'urls' : srcList
 });
 }

 
 function showOptionMenu() {
 WeixinJSBridge.call('showOptionMenu');
 }


 
 function hideOptionMenu() {
 WeixinJSBridge.call('hideOptionMenu');
 }

 
 function showToolbar() {
 WeixinJSBridge.call('showToolbar');
 }

 
 function hideToolbar() {
 WeixinJSBridge.call('hideToolbar');
 }

 
 function getNetworkType(callback) {
 if (callback && typeof callback == 'function') {
 WeixinJSBridge.invoke('getNetworkType', {}, function (e) {
 // 在这里拿到e.err_msg，这里面就包含了所有的网络类型
 callback(e.err_msg);
 });
 }
 }

 
 function closeWindow() {
 WeixinJSBridge.call("closeWindow");
 }

 
 function wxJsBridgeReady(readyCallback) {
 if (readyCallback && typeof readyCallback == 'function') {
 var Api = this;
 var wxReadyFunc = function () {
 readyCallback(Api);
 };
 if (typeof window.WeixinJSBridge == "undefined"){
 if (document.addEventListener) {
  document.addEventListener('WeixinJSBridgeReady', wxReadyFunc, false);
 } else if (document.attachEvent) {
  document.attachEvent('WeixinJSBridgeReady', wxReadyFunc);
  document.attachEvent('onWeixinJSBridgeReady', wxReadyFunc);
 }
 }else{
 wxReadyFunc();
 }
 }
 }

 return {
 version :"2.0",
 ready :wxJsBridgeReady,
 shareToTimeline :weixinShareTimeline,
 shareToWeibo :weixinShareWeibo,
 shareToFriend :weixinSendAppMessage,
 generalShare :weixinGeneralShare,
 addContact :addContact,
 showOptionMenu :showOptionMenu,
 hideOptionMenu :hideOptionMenu,
 showToolbar :showToolbar,
 hideToolbar :hideToolbar,
 getNetworkType :getNetworkType,
 imagePreview :imagePreview,
 closeWindow :closeWindow
 };
})();

本文已被整理到了《Javascript微信开发技巧汇总》，欢迎大家学习阅读。

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以上就是微信分享js代码，希望对大家的学习有所帮助。