node.js学习篇之url解析

处理url的解析 

var qureyString = require('querystring');

var server = http.createServer ((req, res) =>{
    //http://localhost:8000/start?foo=bar&hello=word
    console.log('req.url', req.url);    //  /start?foo=bar&hello=word
    var path = req.url.split('?')[0];  // /start
    console.log('path', path);

    req.query = qureyString.parse(req.url.split('?')[1]);

    var foo = req.query.foo ||''; //bar
    var hello = req.query.hello ||''; //word
});

server.listen(8000);

 

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

var service = http.createServer((req,res) => {
    console.log('req.url', req.url);
    if ('GET' === req.method && '/images' === req.url.substr(0,7) && '.jpg' === req.url.substr(-4)){
        //处理
        fs.stat(__dirname + req.url,(err, stat) => {
            if (err || !stat.isFile() ) {
                res.writeHead(404);
                res.end('not found');
                return;
            }
            console.log('下载图片');
            server(__dirname +req.url, 'application/jpg');
        });
    } else if ('GET' === req.method && '/' === req.url) {
     server(__dirname + '/index.html' , 'text/html');
    } else {
        res.writeHead(404);
        res.end('not found');
    }

    function server (path, type) {
        res.writeHead(200,{'Content-Type':type});
        fs.createReadStream(path).pipe(res);
    }
});


service.listen(8000);