koa-mongoose 灰太狼 2021-09-16 09:54 321阅读 0赞 ## ## ## 模板 ## koa编写后端数据 项目结构 ![70][] index.js const Koa = require('koa'); const mongoose = require('mongoose'); const cors = require('koa2-cors'); const db = 'mongodb://test:123456@localhost:27017/test' //mongoose 地址 const router = require('./router/router')() const bodyParser = require('koa-bodyparser')//中间件, mongoose.connect(db,{useNewUrlParser:true})//链接mongoose const app = new Koa(); app.use(cors())//跨域处理 app.use(bodyParser({enableTypes:['json', 'form', 'text']})); app.use(router.routes()) .use(router.allowedMethods()) app.use(async(ctx)=>{ ctx.body="66666666666666" }) app.listen(8808,()=>{ console.log('server is runing on 8808') }) Models.js var mongoose = require('mongoose') var Schema = mongoose.Schema var uSchema = new Schema({ email:String, name:String }) mongoose.model('usercols',uSchema) exports.User = mongoose.model('usercols') User.js const {User} = require('./models.js') exports.GetUser=async (ctx,next)=>{ const email = ctx.query.email; let data = await User.findOne({ email:email }) ctx.body={ status:data ? 1 : 0, data:data } } exports.SaveUser=async(ctx,next)=>{ const email= ctx.request.body.email; const name=ctx.request.body.name; if(!email || !name) return ctx.body={status:0,message:"邮箱错误"} let data = await User.findOne({ email:email }) if (data) { ctx.body={ status:0, data:"用户已存在" } } else { try { var save = await User.create({"email":email,"name":name}); ctx.body={ status:1, data:save } } catch (error) { ctx.body={ status:0, data:error } } } } router.js const Router = require('koa-router'); const User =require('./User.js') module.exports=function(){ const router = new Router(); router.get('/u/have',User.GetUser)//查询用户是否存在 router.post('/u/register',User.SaveUser)//注册用户 return router } 源码地址:[https://github.com/wangweiruning/koa-moongodb.git][https_github.com_wangweiruning_koa-moongodb.git] git clone [https://github.com/wangweiruning/koa-moongodb.git][https_github.com_wangweiruning_koa-moongodb.git] cd koa2 yarn install node index.js 启动 [70]: /images/20210908/2db942a6ca5b471c9c02158c1c238872.png [https_github.com_wangweiruning_koa-moongodb.git]: https://github.com/wangweiruning/koa-moongodb.git
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