时间:2022-09-20 09:26:59 | 栏目:NodeJS | 点击:次
const mongo=require("mongoose"); const userSchema=new mongo.Schema({ username:String, password:String, gender:String, tel:String, avatarUrl:String }) const userModel=mongo.model('runoob',userSchema,'users') module.exports=userModel
var createError = require('http-errors'); var express = require('express'); var path = require('path'); var cookieParser = require('cookie-parser'); var logger = require('morgan'); var indexRouter = require('./routes/index'); var usersRouter = require('./routes/users'); var app = express(); // 连接数据库 const mongoose = require('mongoose'); // 引入 mongoose,用于连接数据库 mongoose.connect('mongodb://localhost:27017/runoob'); // 连接数据库 // view engine setup app.set('views', path.join(__dirname, 'views')); app.set('view engine', 'jade'); app.use(logger('dev')); app.use(express.json()); app.use(express.urlencoded({ extended: false })); app.use(cookieParser()); app.use(express.static(path.join(__dirname, 'public'))); //挂载路由 app.use('/users', usersRouter); // catch 404 and forward to error handler app.use(function(req, res, next) { next(createError(404)); }); // error handler app.use(function(err, req, res, next) { // set locals, only providing error in development res.locals.message = err.message; res.locals.error = req.app.get('env') === 'development' ? err : {}; // render the error page res.status(err.status || 500); res.render('error'); }); module.exports = app;
这里是处理客户端请求的核心,遵循REST架构风格
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var express = require('express'); const db=require('../model/index') const formidable=require('formidable') const path=require('path') var router = express.Router(); const bcrypt=require('bcryptjs') // /* GET users listing. */ //查找 router.get('/:_id?',(req,res)=>{ const {_id}=req.params; if(_id){ console.log(_id); db // .findOne({_id:'6274ee9d620974ebd2122df8'}) // .find({_id:_id}) .findById(_id) .then(data=>{ res.json({ code:200, status:1, data, }) }) }else { db .find() .then(data=>{ res.json({ code:200, status:0, data }) }) } }) //增加 router.post('/api/upload',(req,res,next)=>{ const form=formidable({ multiples: true, uploadDir: path.join(__dirname, '../static/upload'), keepExtensions: true, }) form.parse(req,(err,fields, files)=>{ if(err) { next(err); return; } const {name,password,gender,tel}=fields; const avatarUrl="/upload/"+ files.avatar.newFilename;//文件夹,包含上传文件 if(!name || !password){ res.json({ code:200, status:1, message:"用户名或密码不能为空" }) }else { db.findOne({username:name}).then(data=>{ if(data==null){ const hash=bcrypt.hashSync(password,10) new db({username:name,password:hash,gender,tel,avatarUrl}) .save() .then(data=>{ res.json({ code:200, status:0, message:data }) }) }else { res.json({ code:200, status:1, message:"用户名已存在" }) } }) } }) }) //修改 router.put('/:_id',(req,res)=>{ const _id=req.params; const {username,password,gender,tel,avatarUrl}=req.body; db .updateOne({_id},{username,password,gender,tel,avatarUrl}) .then((data)=>{ res.json({ code:200, status:0, message:"修改成功" }) }) }) //删除 router.delete('/:_id',(req,res)=>{ const _id=req.params; db.deleteOne({_id}).then((data)=>{ res.send({ code:200, status:0, message:"删除成功" }) }) }) module.exports = router;
文件夹mondo-express下新建一个static/upload
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> </head> <body> <h2>With <code>"express"</code> npm package</h2> <form action="users/api/upload" enctype="multipart/form-data" method="post"> <div>name: <input type="text" name="name" /></div> <div>password:<input type="password" name="password"></div> <div>gender:<input type="text" name="gender"></div> <div> tel:<input type="text" name="tel"></div> <div>File: <input type="file" name="avatar" multiple="multiple" /></div> <input type="submit" value="Upload" /> </form> </body> </html>