node.js原始路径配置

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__dirname 获取绝对路径

利用fs库，最好用这个函数

分模块路由

主文件：

var http = require("http");var router = require("./router.js");//创建服务器http.createServer(function (req, res) {    if(req.url == "/"){        router.showIndex(req, res);    } else if(req.url.substr(0,9) == "/student/") {        router.showStudent(req, res);    } else {        router.show404(req, res);    }}).listen(81, "127.0.0.1");

方法文件：

exports.showIndex = showIndex;exports.showStudent = showStudent;exports.show404 = show404;function showIndex(req, res) {    res.writeHead(200, {"Content-Type":"text/html;charset=UTF-8"});    res.end("我是主页");}function showStudent(req, res) {    var id = req.url.substr(9,6);    res.writeHead(200, {"Content-Type":"text/html;charset=UTF-8"});    res.end("我是学生" + id);}function show404(req, res) {    res.writeHead(200, {"Content-Type":"text/html;charset=UTF-8"});    res.end("我是404");}

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