function getWxSignature() {   $.ajax({     url: "/activityWxShaer",     type: 'post',     data: { urlhref:location.href },     success: function(jsons) {       var data = JSON.parse(jsons);       wx.config({         debug: false, // 開啟調(diào)試模式,調(diào)用的所有api的返回值會在客戶端alert出來，若要查看傳入的參數(shù)，可以在pc端打開，參數(shù)信息會通過log打出，僅在pc端時才會打印。         appId: 'xxxxxxxxx', // 必填，公眾號的唯一標(biāo)識         timestamp: data.timestamp, // 必填，生成簽名的時間戳         nonceStr: data.nonceStr, // 必填，生成簽名的隨機串         signature: data.signature, // 必填，簽名，見附錄1         jsApiList: [             'onMenuShareTimeline',             'onMenuShareAppMessage',             'onMenuShareQQ',             'onMenuShareWeibo',             'onMenuShareQZone'           ] // 必填，需要使用的JS接口列表，所有JS接口列表見附錄2       });       shareFunc();// 微信的分享接口 里面為ready     }   }); } 

/**  * 分享  */ router.post('/activityWxShaer', function(req, res, next) {   let hrefURL = req.body.urlhref;   wxShare.prototype.accessToken(hrefURL, function(data) {     res.json(data);   }); }); 

/**    * 簽名    * @param {*} url    */   sign(url) {     let _this = this;     var ret = {       jsapi_ticket: configEnd.ticket,       nonceStr: configEnd.nonceStr,       timestamp: configEnd.timestamp,       url: url     };     var string = _this.rawString(ret);     var shaObjs = sha1(string);     return shaObjs;   }; 四、nodeJS后臺代碼直接上整體代碼[javascript] view plain copyvar url = require('url'); var request = require('request'); var sha1 = require('sha1');  let config = {     appID: "",// 微信公眾號ID     appSecret: "" //微信公眾號里有   },   configEnd = {     appID: '',     access_token: '',     ticket: '',     timestamp: '', // 必填，生成簽名的時間戳     nonceStr: '', // 必填，生成簽名的隨機串     signature: '', // 必填，簽名，見附錄1   };  /**  * 微信分享  */ class wxShare {   /**    * 請求獲取access_token 方法入口    * @param {* URL鏈接} hrefURL    * @param {* 回調(diào)請求方法} callback    */   accessToken(hrefURL, callback) { // 獲取access_token     let _this = this;     var tokenUrl = 'https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=' + config.appID + '&secret=' + config.appSecret;     request(tokenUrl, function(error, response, body) {       if (response.statusCode && response.statusCode === 200) {         body = JSON.parse(body);         configEnd.access_token = body.access_token;         _this.upJsapiTicket(hrefURL, body.access_token, callback)       }     });   };   /**    * 獲取<span style="font-family:Arial;">Jsapi_Ticket</span>    * @param {* URL鏈接} hrefURL    * @param {* token} access_Ttoken    * @param {* 回調(diào)請求方法} callback    */   upJsapiTicket(hrefURL, access_Ttoken, callback) { // Jsapi_ticket     let _this = this;     var ticketUrl = 'https://api.weixin.qq.com/cgi-bin/ticket/getticket?access_token=' + access_Ttoken + '&type=jsapi';     request(ticketUrl, function(err, response, content) {       content = JSON.parse(content);       if (content.errcode == 0) {         configEnd.ticket = content.ticket; // ticket         configEnd.timestamp = _this.createTimestamp(); // 時間戳         configEnd.nonceStr = _this.createNonceStr(); // 隨機數(shù)         configEnd.signature = _this.sign(hrefURL); // 簽名         callback && callback(configEnd); // 回調(diào)前端JS方法       }     })   };   /**    * 隨機字符串    */   createNonceStr() {     return Math.random().toString(36).substr(2, 15);   };   /**    * 時間戳    */   createTimestamp() {     return parseInt(new Date().getTime() / 1000).toString();   };   /**    * 拼接字符串    * @param {*} args    */   rawString(args) {     var keys = Object.keys(args);     keys = keys.sort()     var newArgs = {};     keys.forEach(function(key) {       newArgs[key.toLowerCase()] = args[key];     });     var string = '';     for (var k in newArgs) {       string += '&' + k + '=' + newArgs[k];     }     string = string.substr(1);     return string;   };   /**    * 簽名    * @param {*} url    */   sign(url) {     let _this = this;     var ret = {       jsapi_ticket: configEnd.ticket,       nonceStr: configEnd.nonceStr,       timestamp: configEnd.timestamp,       url: url     };     var string = _this.rawString(ret);     var shaObjs = sha1(string);     return shaObjs;   };  } module.exports = wxShare;