0.项目机构
1.package.js 安装mongoose依赖和body-parser依赖
{ "name": "test", "version": "0.0.0", "private": true, "scripts": { "start": "node ./bin/www" }, "dependencies": { "body-parser": "^1.18.3", "cookie-parser": "~1.4.3", "debug": "~2.6.9", "express": "~4.16.0", "http-errors": "~1.6.2", "mongoose": "^5.1.6", "morgan": "~1.9.0", "pug": "2.0.0-beta11" } }npm install mongoose --save npm install body-parser --save
2. app.js 加数据库连接，还有router
这边在mongodb中创建了一个xiaohua1的database
var mongoose = require('mongoose'); mongoose.connect('mongodb://article:123456@localhost:27017/xiaohua1') var apiRouter = require('./routes/api') app.use('/api', apiRouter)3.models/xiaohua.js
var mongoose = require('mongoose'); var Schema = mongoose.Schema; var XiaohuaSchema = new Schema({ title : String }) module.exports = mongoose.model('Xiaohua', XiaohuaSchema)4.routes/api.js
| Route | HTTP Verb | Description |
| /api/xiaohuas | GET | Get all the xiaohuas. |
| /api/xiaohuas | POST | Create a xiaohua. |
| /api/xiaohuas/:xiaohua_id | GET | Get a single xiaohua. |
| /api/xiaohuas/:xiaohua_id | PUT | Update a xiaohua with new info. |
| /api/xiaohuas/:xiaohua_id | DELETE | Delete a xiaohua. |
var express = require('express'); var router = express.Router(); var Xiaohua = require('../models/xiaohua') // middleware to use for all requests router.use(function(req, res, next) { // do logging console.log('Something is happening.'); next(); // make sure we go to the next routes and don't stop here }); /* GET home page. */ router.get('/', function(req, res, next) { res.json({ message: 'hooray! welcome to our api!' }); }); router.route('/xiaohuas') .post(function(req, res) { var xiao = new Xiaohua(); xiao.title = req.body.title; // save the bear and check for errors xiao.save(function(err) { if (err) res.send(err); res.json({ message: 'Xiao created!' }); }); }) .get(function(req, res) { Xiaohua.find(function(err, xiaohuas) { if (err) res.send(err); res.json(xiaohuas); }); }); router.route('/xiaohuas/:xiaohua_id') .get(function(req, res) { Xiaohua.findById(req.params.xiaohua_id, function(err, xiaohua) { if (err) res.send(err); res.json(xiaohua); }); }) .put(function(req, res) { // use our bear model to find the bear we want Xiaohua.findById(req.params.xiaohua_id, function(err, xiaohua) { if (err) res.send(err); xiaohua.title = req.body.title; // save the xiaohua xiaohua.save(function(err) { if (err) res.send(err); res.json({ message: 'Xiaohua updated!' }); }); }); }) .delete(function(req, res) { Xiaohua.remove({ _id: req.params.xiaohua_id }, function(err, xiaohua) { if (err) res.send(err); res.json({ message: 'Successfully deleted' }); }); }); module.exports = router;