var http = require('http');
var server = http.createServer(function(req,res){
console.log("hello server");
});
server.listen(3000);
var express = require('express');
var app = express();
http.createServer(app);
// 处理用户请求(路由)
app.get("/",function(){
console.log("hello server");
})
// index.js
var express = require('express');
var app = express();
app.use(express.static(__dirname + '/public'));
var express = require('express');
var app = express();
app.use(function(request,response,next){
if(request.url === '/'){
response.writeHead(200,{"Content-Type":"text/plain"});
response.end("This is home\n");
} else {
next();
}
})
app.use(function(request,response,next){
if(request.url === '/about'){
response.writeHead(200,{"Content-Type":"text/plain"});
response.end("This is about\n");
} else {
next();
}
})
app.use(function(request,response,next){
response.writeHead(404,{"Content-Type":"text/plain"});
response.end("404 not found!\n");
})
app.listen(1234,'localhost');
var express = require('express');
// 引入模板引擎
var hbs = require('express-handlebars');
var bodyParser = require('body-parser');
var session = require('express-session');
var app = express();
// hbs是一个模板引擎
app.engine('hbs',hbs());
app.set('view engine','hbs');
app.set('views','templates');
// 数据库读出来的数据
var userArr = ['wpzheng'];
app.use(session({secret:'maizidu'}));
app.use(bodyParser.urlencoded({extended:true}));
app.get('/', function(request,response,next){
var username = request.session.username;
if(username){
response.send("hello" + username);
}else{
response.render('form');
}
});
app.post('/', function(request,response){
if(userArr.indexOf(request.body.username)>=0){
request.session.username = request.body.username;
}else{
request.session.destroy();
}
// response对象的一个方法 重定向作用
response.redirect('/');
});
app.listen(1234,'localhost');
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