node-表单验证

var http = require('http');
var url = require('url');
var fs = require('fs');
var querystring = require('querystring');

var server = http.createServer();

var HtmlDir = __dirname + '/html/';

server.on('request', function( req, res ) {

var urlStr = url.parse( req.url );

switch (urlStr.pathname) {
case '/':
//首页
sendData( HtmlDir + 'index.html', req, res );
break;

case '/user':
//用户首页
sendData( HtmlDir + 'user.html', req, res );
break;

case '/login':
//用户登录
sendData( HtmlDir + 'login.html', req, res );
break;

case '/login/check':
//console.log(req.method);
//console.log(urlStr);

//console.log( querystring.parse(urlStr.query) );

if (req.method.toUpperCase() == 'POST') {

var str = '';

req.on('data', function(chunk) {
str += chunk;
})

req.on('end', function() {
console.log(str);
console.log( querystring.parse( str ) );
})

}

break;

default:
//处理其他情况
sendData( HtmlDir + 'err.html', req, res );
break;
}

});

function sendData(file, req, res) {
fs.readFile( file, function(err, data) {

if (err) {
res.writeHead(404, {
'content-type' : 'text/html;charset=utf-8'
});
res.end('<h1>页面被LEO吃掉了</h1>');
} else {
res.writeHead(200, {
'content-type' : 'text/html;charset=utf-8'
});
res.end(data);
}

} );
}

server.listen(8080, 'localhost');