Node入门训练【6】【将data写本地log】

//write_local_log.js

var http = require("http");
var url = require("url");
var fs = require("fs");

function getPath(req) {
var urlStr = req.url;
var urlObj = url.parse(urlStr, true);
var argu = urlObj.query;
return argu.path;
}

function writeLog(err, dir) {
if (err) {
throw err;
}
fs.writeFileSync('./log.txt', dir);
}

function onRequest(req, res) {
console.log('server started');
var path = getPath(req);
var completePath = path + ':';
if (path == 'c' || path == 'd' || path == 'e' || path == 'f') {
fs.readdir(completePath, writeLog);
} else {
console.log("somenthing wrong with path in url");
}
res.end();
}

http.createServer(onRequest).listen(8888);