mongoose增删改查的实际操作

var express = require('express');
var router = express.Router();
var bodyParser=require('body-parser');
var app=express();
var Info=require('../models/info');
var tokens=require('../config/token.js');
app.use(bodyParser.urlencoded({extended:false}));
app.use(bodyParser.json());
var expressJWT=require('express-jwt');

router.get('/test', function(req, res, next) {
	res.json({
		msg:'info api'
	})
})

router.post('/add', function(req, res, next) {
	const inf={}

	console.log(req.user)
	if(!req.user.name){
		return res.json({
			status:1,
			msg:'token失效'
		})
	}else{
		if(req.body.name) inf.name=req.body.name
		if(req.body.zhiwei) inf.zhiwei=req.body.zhiwei
		if(req.body.company) inf.company=req.body.company
		if(req.body.depar) inf.depar=req.body.depar
		var infoAdd=new Info(inf);
		infoAdd.save().then(doc=>{
			res.json({
				status:0,
				result:inf
			})
		})
	}
})
//获取所有信息
router.get('/', function(req, res, next) {
	if(!req.user.name){
		res.json({
			status:1,
			msg:'token失效,或者未登录'
		})
	}else{
		Info.find().then(info=>{
			res.json({
				status:0,
				result:info
			})
		})
	}
	
})

//获取单个信息
router.get('/:id', function(req, res, next) {
	if(!req.user.name){
		res.json({
			status:1,
			msg:'token失效,或者未登录'
		})
	}else{
		console.log(req.params.id)
		Info.findOne({
			_id:req.params.id
		}).then(info=>{
			res.json({
				status:0,
				result:info
			})
		}).catch(err=>{
			res.status(404).json({
				status:1,
				msg:err
			})
		})
	}
	
})
//编辑信息
router.post('/edit', function(req, res, next) {

	let inf={}
	

	if(!req.user.name){
		return res.json({
			status:1,
			msg:'token失效'
		})
	}else{
		let _id=req.body.id;
		if(req.body.name) inf.name=req.body.name
		if(req.body.zhiwei) inf.zhiwei=req.body.zhiwei
		if(req.body.company) inf.company=req.body.company
		if(req.body.depar) inf.depar=req.body.depar

		Info.findOneAndUpdate(
			{_id},
			{$set:inf},
			{new:true}
		).then(info=>{
			res.json({
				status:0,
				result:info
			})
		}).catch(err=>{
			res.json({
				status:1,
				msg:err
			})
		})
	}
})
//删除信息
router.delete('/delete', function(req, res, next) {

	let inf={}
	

	if(!req.user.name){
		return res.json({
			status:1,
			msg:'token失效'
		})
	}else{
		// console.log(typeof req.body.id)
		let _id=req.body.id;

		if(typeof _id=='string'){
			//删除一条
			Info.findOneAndRemove({_id}).then(info=>{
				res.json({
					status:0,
					msg:'删除成功'
				})
			}).catch(err=>{
				res.json({
						status:1,
						result:err
				})
			})
		}else{
			//多条删除
			Info.remove({ _id: { $in: _id} }).then(infos=>{
				res.json({
					status:0,
					msg:'删除成功'
				})
			}).catch(errs=>{
				res.json({
					status:1,
					msg:'删除失败'
				})
			})
		}
		
	}
})
module.exports = router;

参考文章：https://www.jianshu.com/p/2f54b90efe15