const express = require('express')
const app = express()
const bodyParser = require('body-parser')
// 处理静态资源
app.use(express.static('public'))
// 处理参数
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));
// 设置允许跨域访问该服务
app.all('*', function (req, res, next) {
res.header("Access-Control-Allow-Origin", "*");
res.header('Access-Control-Allow-Methods', 'PUT, GET, POST, DELETE, OPTIONS');
res.header("Access-Control-Allow-Headers", "X-Requested-With");
res.header('Access-Control-Allow-Headers', 'Content-Type');
res.header('Access-Control-Allow-Headers', 'mytoken');
next();
app.get('/async1', (req, res) => {
res.send('hello1')
app.get('/async2', (req, res) => {
if(req.query.info == 'hello') {
res.send('world')
}else{
res.send('error')
app.get('/adata', (req, res) => {
res.send('Hello axios!')
app.get('/axios', (req, res) => {
res.send('axios get 传递参数' + req.query.id)
app.get('/axios/:id', (req, res) => {
res.send('axios get (Restful) 传递参数' + req.params.id)
app.delete('/axios', (req, res) => {
res.send('axios get 传递参数' + req.query.id)
app.post('/axios', (req, res) => {
res.send('axios post 传递参数' + req.body.uname + '---' + req.body.pwd)
app.put('/axios/:id', (req, res) => {
res.send('axios put 传递参数' + req.params.id + '---' + req.body.uname + '---' + req.body.pwd)
app.get('/axios-json', (req, res) => {
res.json({
uname: 'lisi',
age: 12
app.get('/fdata', (req, res) => {
res.send('Hello Fetch!')
app.get('/books', (req, res) => {
res.send('传统的URL传递参数!' + req.query.id)
app.get('/books/:id', (req, res) => {
res.send('Restful形式的URL传递参数!' + req.params.id)
app.delete('/books/:id', (req, res) => {
res.send('DELETE请求传递参数!' + req.params.id)
app.post('/books', (req, res) => {
res.send('POST请求传递参数!' + req.body.uname + '---' + req.body.pwd)
app.put('/books/:id', (req, res) => {
res.send('PUT请求传递参数!' + req.params.id + '---' + req.body.uname + '---' + req.body.pwd)
app.get('/json', (req, res) => {
res.json({
uname: 'lisi',
age: 13,
gender: 'male'
app.get('/a1', (req, res) => {
setTimeout(function(){
res.send('Hello TOM!')
},1000);
app.get('/a2', (req, res) => {
setTimeout(function(){
res.send('Hello JERRY!')
},2000);
app.get('/a3', (req, res) => {
setTimeout(function(){
res.send('Hello SPIKE!')
},3000);
// 路由
app.get('/data', (req, res) => {
res.send('Hello World!')
app.get('/data1', (req, res) => {
setTimeout(function(){
res.send('Hello TOM!')
},1000);
app.get('/data2', (req, res) => {
res.send('Hello JERRY!')
// 启动监听
app.listen(3000, () => {
console.log('running...')