意味着赞同角堆栈不能“GET”

Question

我想用下面的代码从网络访问MongoDB的，但是当我想，当我试图用它像访问URL，它说

Cannot GET /posts?title=test&link=http://test.com 

这

http://localhost:3000/posts?title=test&link=http://test.com 

我app.js：

var express = require('express'); 
var path = require('path'); 
var favicon = require('serve-favicon'); 
var logger = require('morgan'); 
var cookieParser = require('cookie-parser'); 
var bodyParser = require('body-parser'); 
var mongoose = require('mongoose'); 

mongoose.connect('mongodb://localhost/news'); 
require('./models/Posts'); 
require('./models/Comments'); 

var routes = require('./routes/index'); 
var users = require('./routes/users'); 

var app = express(); 

// view engine setup 
app.set('views', path.join(__dirname, 'views')); 
app.set('view engine', 'ejs'); 

module.exports = app; 

和index.js：

var express = require('express'); 
var router = express.Router(); 


var mongoose = require('mongoose'); 
var Post = mongoose.model('Post'); 
var Comment = mongoose.model('Comment'); 

router.get('/posts', function(req, res, next) { 
    Post.find(function(err, posts) { 
    if (err) { return next(err); } 

    res.json(posts); 
    }); 
}); 

router.post('/posts', function(req, res, next) { 
    var post = new Post(req.body); 

    post.save(function(err, post) { 
    if (err) { return next(err); } 

    res.json(post); 
    }); 
}); 

Posts.js：

var mongoose = require('mongoose'); 

var PostSchema = new mongoose.Schema({ 
    title: String, 
    link: String, 
    upvotes: { type: Number, default: 0 }, 
    comments: [{ type: mongoose.Schema.Types.ObjectId, ref: 'Comment' }] 
}); 

mongoose.model('Post', PostSchema); 

Comments.js：

var mongoose = require('mongoose'); 

var CommentSchema = new mongoose.Schema({ 
    body: String, 
    author: String, 
    upvotes: { type: Number, default: 0 }, 
    post: { type: mongoose.Schema.Types.ObjectId, ref: 'Post' } 
}); 

mongoose.model('Comment', CommentSchema); 

Answer 1

你的问题是不相关的MongoDB的，但是你错过了两个具体的快递点：

1）您需要将index.js添加到您的快递应用程序中，执行类似app.use('/', require('./routes/index'))的操作。

2）您需要导出路由器index.js。