老师，我的content 和 message 是一个object

Question

var content=yield util.parseXMLAsync(data);
console.log("I want to recived the"+content.toString());
var message=util.formatMessage(content.xml);
console.log("this is message"+message);

this.weixin = message;  //message is object

yield handler.call(this, next);

wechat.reply.call(this);

Answer 1

Scott 2016-06-29 08:35:15

else if(message.MsyType === 'text'){
       var content = message.Content
        var reply = '你说的' + message.Content + '太浮躁了'
        if (content === '1') {
            reply = '你是好人'
        }
        else if(content === '2') {
            reply = '你是坏人'
        }
        this.body = reply
     }

weixin.js 里面回复的代码写错了。

MsgType 拼错成了  MsyType

• 提问者 qq_smile笑看花_0 #1

  谢谢scott老师。解决了

Answer 2

Scott 2016-06-28 20:41:58

{"errcode":40125,"errmsg":"invalid appsecret, view more at http://t.cn/RAEkdVq hint: [jEvVTa0197e277]","expires_in":null}

首先我看到你代码里这个生成的凭据是没有成功的，因为你代码里变量拼错了：

function Wechat(opts){
    var that = this;
    this.appID=opts.appID;
    this.appsecret=opts.appsecret;

appsecret 在你的配置文件里是 appSecret，其他的由于我本地貌似防火墙有问题，没法往下排查了，你先修复后，看看

• 提问者 qq_smile笑看花_0 #1

  老师，修复后，还是报这个错

Answer 3

Scott 2016-06-28 20:04:20

慕课网有一个上传附件的功能就好了，你打包把代码发我邮箱吧: [e-mail]，我本地跑一下看看

• 提问者 qq_smile笑看花_0 #1

  谢谢Scott老师

Answer 4

Scott 2016-06-27 21:30:23

看看是不是 util 里面 formateMessage 暴漏的有错误，如果没有的话，可以把更多代码贴出来。

建议你自己先往上查一下：

  at Object.exports.tpl (/Users/mac/wechat/wechat/util.js:124:19)

      at Object.Wechat.reply (/Users/mac/wechat/wechat/wechat.js:172:20)

      at Object.<anonymous> (/Users/mac/wechat/wechat/g.js:102:30)

这里的错误已经很明显了，util.js:124 行 调用的是wechat.js:172行，调用的是g.js:102 行，那么肯定是这 3 行代码前后的逻辑出了问题，设下 console 把相关变量都打印一下

Answer 5

Scott 2016-06-27 15:43:19

content 和 msaage 就是 object 啊，这样后面才能从其中取出某个 key 对应的值，比如 var a = {a: 1}。后面可以用 a.a 拿到 1

Answer 6

学习使我进步 2017-05-24 19:16:06

C:\Users\Administrator\Desktop\wechat\node_modules\ejs\

lib\ejs.js:536

      throw e;

      ^

SyntaxError: Missing catch or finally after try while c

ompiling ejs

If the above error is not helpful, you may want to try

EJS-Lint:

https://github.com/RyanZim/EJS-Lint

• 学习使我进步 #1

  这个是怎么回事？

• Scott 回复 学习使我进步 #2

  模板的语法有写错的地方，再仔细的排查一遍，多余的空格啊，缺少的标签啊等等

• 学习使我进步 回复 Scott #3

  好的，谢谢老师

点开查看后面1条评论

Answer 7

提问者 qq_smile笑看花_0 2016-06-28 11:12:55

//util.js
'use strict'
var xml2js = require('xml2js');
var Promise = require('bluebird');
var tpl = require('./tpl');

exports.parseXMLAsync = function(xml){
    return new Promise(function(resolve, reject){
        xml2js.parseString(xml, {trim: true}, function(err, content){
            if (err) {reject(err)}
            else{resolve(content)}
        })
    })
};

function formatMessage(result){
    var message = {}
    if(typeof result === 'object'){
        var keys = Object.keys(result)
        for (var i = 0; i <keys.length; i++) {
            var item = result[keys[i]]
            var key = keys[i]
            if (!(item instanceof Array) || item.length === 0) {
                continue
            }
            if (item.length === 1) {
                var val = item[0]
                if (typeof val === 'object') {
                    message[key] = formatMessage(val)
                }else{
                    message[key] = (val || '').trim()
                }
            }
            else{
                message[key] = []
                for(var j = 0, k = item.length; j < k; j++){
                    message[key].push(formatMessage(item[j]))
                }
            }
        }
    }
    return message
}

exports.formatMessage = formatMessage

exports.tpl = function(content, message){
    var info = {}
    var type = 'text'
    var fromUserName = message.FromUserName
    var toUserName = message.ToUserName
    if (Array.isArray(content)) {
        type = 'news'
    }
    type = content.type||type
    info.content = content
    info.createTime = new Date().getTime()
    info.msgType = type
    info.toUserName = fromUserName
    info.fromUserName = toUserName
    console.log('============='+info + '==========')
    return tpl.compiled(info)
}

Answer 8

提问者 qq_smile笑看花_0 2016-06-28 11:12:28

//wechat.js

'use strict'

var Promise=require('bluebird');
var request=Promise.promisify(require('request'));
var prefix='https://api.weixin.qq.com/cgi-bin/';
var util = require('./util');
var api={
    accessToken:prefix+'token?grant_type=client_credential'
};

function Wechat(opts){
    var that = this;
    this.appID=opts.appID;
    this.appsecret=opts.appsecret;
    this.getAccessToken=opts.getAccessToken;
    this.saveAccessToken=opts.saveAccessToken;

    this.getAccessToken()
        .then(function(data){
            try{
                data=JSON.parse(data);
            }
            catch(e){
                return that.updataAccessToken()
            }
            if (that.isValidAccessToken(data)) {
                return Promise.resolve(data)
            }else{
                return that.updataAccessToken()
            }
        })
        .then(function(data){
            that.data=data.access_token;
            that.expires_in=data.expires_in;
            that.saveAccessToken(data)
        })
}
Wechat.prototype.isValidAccessToken = function(data) {
    if (!data || !data.access_token || !data.expires_in) {
        return false;
    }
    var access_token=data.access_token;
    var expires_in=data.expires_in;
    var now = (new Date().getTime())

    if (now < expires_in) {
        return true
    }else{
        return false
    }
};

Wechat.prototype.updataAccessToken = function() {
    var appID = this.appID;
    var appsecret = this.appsecret;
    var url=api.accessToken+'&appid='+appID+'&secret='+appsecret;

    return new Promise(function(resolve,reject){
        request({url: url , json : true}).then(function(response){

            var data = response.body;

            var now = (new Date().getTime())

            var expires_in = now+(data.expires_in-20)*1000
            data.expires_in = expires_in;
            resolve(data)
        })
    })
};

Wechat.prototype.reply = function() {
    var content = this.body;
    var message = this.weixin;
    console.log("type is "+ content.type);
    console.log("你好"+message);  //message is object
    console.log("my name is "+content);//value has been received
    var xml = util.tpl(content,message);
    this.status = 200;
    this.type = 'application/xml';
    this.body = xml
};

module.exports=Wechat;

Answer 9

提问者 qq_smile笑看花_0 2016-06-28 11:11:33

'use strict'
//g.js
var sha1=require("sha1");
var getRawBody=require("raw-body");
var Wechat=require("./wechat");
var util=require("./util");

module.exports=function(option,handler){
    var wechat=new Wechat(option);//管理与微信交互的接口,管理票据的更新,存储,有效期;
    return function *(next){//推送的数据,返回的信息
        console.log(this.query);
        //var that=this;
        var token=option.token;
        var signature=this.query.signature;
        var nonce=this.query.nonce;
        var timestamp=this.query.timestamp;
        var echostr=this.query.echostr;

        var str=[token,timestamp,nonce].sort().join("");
        var sha=sha1(str);

        if(this.method==="GET"){
            if(sha === signature){
                this.body=echostr+"";
                console.log(token);
            }
            else{
                this.body="wrong";
            }
        }
        else if(this.method==="POST"){
            if(sha !== signature){
                this.body="wrong";
                return false;
            }

            var data=yield getRawBody(this.req,{
                length:this.length,
                limit:"1Mb",
                encoding:this.charset
            });

             //message is a object
            //content is a object
            var content=yield util.parseXMLAsync(data);
            console.log("I want to recived the"+content);
            var message=util.formatMessage(content.xml);
            console.log("this is message"+message);

            this.weixin = message;  //message is object

            yield handler.call(this, next);

            wechat.reply.call(this);
        }
    };
};

Answer 10

提问者 qq_smile笑看花_0 2016-06-28 11:10:48

//wechat.js

'use strict'

var Promise=require('bluebird');
var request=Promise.promisify(require('request'));
var prefix='https://api.weixin.qq.com/cgi-bin/';
var util = require('./util');
var api={
   accessToken:prefix+'token?grant_type=client_credential'
};

function Wechat(opts){
   var that = this;
   this.appID=opts.appID;
   this.appsecret=opts.appsecret;
   this.getAccessToken=opts.getAccessToken;
   this.saveAccessToken=opts.saveAccessToken;

   this.getAccessToken()
       .then(function(data){
           try{
               data=JSON.parse(data);
           }
           catch(e){
               return that.updataAccessToken()
           }
           if (that.isValidAccessToken(data)) {
               return Promise.resolve(data)
           }else{
               return that.updataAccessToken()
           }
       })
       .then(function(data){
           that.data=data.access_token;
           that.expires_in=data.expires_in;
           that.saveAccessToken(data)
       })
}
Wechat.prototype.isValidAccessToken = function(data) {
   if (!data || !data.access_token || !data.expires_in) {
       return false;
   }
   var access_token=data.access_token;
   var expires_in=data.expires_in;
   var now = (new Date().getTime())

   if (now < expires_in) {
       return true
   }else{
       return false
   }
};

Wechat.prototype.updataAccessToken = function() {
   var appID = this.appID;
   var appsecret = this.appsecret;
   var url=api.accessToken+'&appid='+appID+'&secret='+appsecret;

   return new Promise(function(resolve,reject){
       request({url: url , json : true}).then(function(response){

           var data = response.body;

           var now = (new Date().getTime())

           var expires_in = now+(data.expires_in-20)*1000
           data.expires_in = expires_in;
           resolve(data)
       })
   })
};

Wechat.prototype.reply = function() {
   var content = this.body;
   var message = this.weixin;
   console.log("type is "+ content.type);
   console.log("你好"+message);  //message is object
   console.log("my name is "+content);//value has been received
   var xml = util.tpl(content,message);
   this.status = 200;
   this.type = 'application/xml';
   this.body = xml
};

module.exports=Wechat;

Answer 11

提问者 qq_smile笑看花_0 2016-06-28 11:10:13

//util.js

'use strict'
var xml2js = require('xml2js');
var Promise = require('bluebird');
var tpl = require('./tpl');

exports.parseXMLAsync = function(xml){
   return new Promise(function(resolve, reject){
       xml2js.parseString(xml, {trim: true}, function(err, content){
           if (err) {reject(err)}
           else{resolve(content)}
       })
   })
};

function formatMessage(result){
   var message = {}
   if(typeof result === 'object'){
       var keys = Object.keys(result)
       for (var i = 0; i <keys.length; i++) {
           var item = result[keys[i]]
           var key = keys[i]
           if (!(item instanceof Array) || item.length === 0) {
               continue
           }
           if (item.length === 1) {
               var val = item[0]
               if (typeof val === 'object') {
                   message[key] = formatMessage(val)
               }else{
                   message[key] = (val || '').trim()
               }
           }
           else{
               message[key] = []
               for(var j = 0, k = item.length; j < k; j++){
                   message[key].push(formatMessage(item[j]))
               }
           }
       }
   }
   return message
}

exports.formatMessage = formatMessage

exports.tpl = function(content, message){
   var info = {}
   var type = 'text'
   var fromUserName = message.FromUserName
   var toUserName = message.ToUserName
   if (Array.isArray(content)) {
       type = 'news'
   }
   type = content.type||type
   info.content = content
   info.createTime = new Date().getTime()
   info.msgType = type
   info.toUserName = fromUserName
   info.fromUserName = toUserName
   console.log('============='+info + '==========')
   return tpl.compiled(info)
}

Answer 12

提问者 qq_smile笑看花_0 2016-06-27 20:48:32

老师，我也报这个错

 TypeError: Cannot read property 'type' of undefined

      at Object.exports.tpl (/Users/mac/wechat/wechat/util.js:124:19)

      at Object.Wechat.reply (/Users/mac/wechat/wechat/wechat.js:172:20)

      at Object.<anonymous> (/Users/mac/wechat/wechat/g.js:102:30)

      at GeneratorFunctionPrototype.next (native)

      at Object.<anonymous> (/Users/mac/wechat/node_modules/koa/node_modules/koa-compose/index.js:28:19)

      at GeneratorFunctionPrototype.next (native)

      at onFulfilled (/Users/mac/wechat/node_modules/koa/node_modules/co/index.js:65:19)

      at runMicrotasksCallback (node.js:337:7)

      at process._tickCallback (node.js:355:11)