Node.js TODO

来源：互联网发布：js中的offsettop 编辑：程序博客网时间：2024/04/30 06:30

Node.js TODO

var http = require('http');var url = require('url');var items = [];http.createServer(function(req, res) {    console.log(req.method);    switch (req.method) {        case 'POST':            var item = '';            req.setEncoding('utf8');            req.on('data', function(chunk) {                item += chunk;            });            req.on('end', function() {                console.log(item);                items.push(item);                res.end('Ok\n');            });            break;        case 'GET':            items.forEach(function(item, i) {                res.write(i + ') ' + item + '\n');            });            res.end();            break;        case 'DELETE':            console.log(url.parse(req.url));            var path = url.parse(req.url).pathname;            var i = parseInt(path.slice(1));            if (isNaN(i)) {                res.writeHead(400, {'Content-Type': 'text/plain'});                res.end('Invalid item id');            } else if (!items[i]) {                res.writeHead(404, {'Content-Type': 'text/plain'});                res.end('Item not found');            } else {                items.splice(i, 1);                res.write('Ok\n');                items.forEach(function(item, i) {                    res.write(i + ') ' + item + '\n');                });                res.end();            }            break;    }}).listen(3000);// GET//curl.exe http://localhost:3000//// POST//curl.exe -d '111' http://localhost:3000//// DELETE//curl.exe -X "DELETE" http://localhost:3000/1

var http = require('http');var querystring = require('querystring');var items = [];var server = http.createServer(function(req, res) {    console.log(req.method);    if ('/' == req.url) {        switch (req.method) {            case 'GET':            show(res);             break;            case 'POST':            console.log('xxxx');            add(req, res);            break;            default:            badRequest(res);        }    } else {        notFound(res);    }}).listen(3000);function show(res) {    var html = '<html><head><title>Todo List</title></head><body>'                + '<h1>Todo List</h1>'                + '<ul>'                + items.map(function(item) {                    return '<li>' + item + '</li>'                }).join('')                + '</ul>'                + '<form method="post" action="/">'                + '<p><input type="text" name="item" /></p>'                + '<p><input type="submit" value="Add Item" /></p>'                + '</form>'                + '</body></html>';    res.setHeader('Content-Type', 'text/html');    res.setHeader('Content-Length', Buffer.byteLength(html));    res.end(html);}function notFound(res) {    res.statusCode = 404;    res.setHeader('Content-Type', 'text/plain');    res.end('Not Found');}function badRequest(res) {    res.statusCode = 400;    res.setHeader('Content-Type', 'text/plain');    res.end('Bad Request');}function add(req, res) {    console.log('add');    var body = '';    req.setEncoding('utf8');    req.on('data', function(chunk) {        body += chunk;    })    req.on('end', function() {        var obj = querystring.parse(body);        items.push(obj.item);        show(res);    });}

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