http client java
HttpClient client = HttpClient.newHttpClient();
HttpRequest request = HttpRequest.newBuilder()
.uri(URI.create("http://openjdk.java.net/"))
.build();
client.sendAsync(request, BodyHandlers.ofString())
.thenApply(HttpResponse::body)
.thenAccept(System.out::println)
.join();nodejs http server
/* ====== create node.js server with core 'http' module ====== */
// dependencies
const http = require("http");
// PORT
const PORT = 3000;
// server create
const server = http.createServer((req, res) => {
if (req.url === "/") {
res.write("This is home page.");
res.end();
} else if (req.url === "/about" && req.method === "GET") {
res.write("This is about page.");
res.end();
} else {
res.write("Not Found!");
res.end();
}
});
// server listen port
server.listen(PORT);
console.log(`Server is running on PORT: ${PORT}`);
// ======== Instructions ========
// save this as index.js
// you have to download and install node.js on your machine
// open terminal or command prompt
// type node index.js
// find your server at http://localhost:3000what does http.createserver do
var http = require('http'); // Import Node.js core module
var server = http.createServer(function (req, res) { //create web server
if (req.url == '/') { //check the URL of the current request
// set response header
res.writeHead(200, { 'Content-Type': 'text/html' });
// set response content
res.write('<html><body><p>This is home Page.</p></body></html>');
res.end();
}
else if (req.url == "/student") {
res.writeHead(200, { 'Content-Type': 'text/html' });
res.write('<html><body><p>This is student Page.</p></body></html>');
res.end();
}
else if (req.url == "/admin") {
res.writeHead(200, { 'Content-Type': 'text/html' });
res.write('<html><body><p>This is admin Page.</p></body></html>');
res.end();
}
else
res.end('Invalid Request!');
});
server.listen(5000); //6 - listen for any incoming requests
console.log('Node.js web server at port 5000 is running..')how to create a server in node js
// code by VARSHITH REDDY SATTI
// to create a server in node.js you should.
var http = require('http');
http.createServer(function (req, res) {
res.writeHead(200, {'Content-Type': 'text/html'});
res.write("write html code to display you test")
res.end();
}).listen(8080);
// save this as httpServer.js
// run this by typing node httpServer.js in the command line
// to acess your server got to http://localhost:8080vanilla js http server
var http = require('http');
var fs = require('fs');
var path = require('path');
http.createServer(function (request, response) {
console.log('request ', request.url);
var filePath = '.' + request.url;
if (filePath == './') {
filePath = './index.html';
}
var extname = String(path.extname(filePath)).toLowerCase();
var mimeTypes = {
'.html': 'text/html',
'.js': 'text/javascript',
'.css': 'text/css',
'.json': 'application/json',
'.png': 'image/png',
'.jpg': 'image/jpg',
'.gif': 'image/gif',
'.svg': 'image/svg+xml',
'.wav': 'audio/wav',
'.mp4': 'video/mp4',
'.woff': 'application/font-woff',
'.ttf': 'application/font-ttf',
'.eot': 'application/vnd.ms-fontobject',
'.otf': 'application/font-otf',
'.wasm': 'application/wasm'
};
var contentType = mimeTypes[extname] || 'application/octet-stream';
fs.readFile(filePath, function(error, content) {
if (error) {
if(error.code == 'ENOENT') {
fs.readFile('./404.html', function(error, content) {
response.writeHead(404, { 'Content-Type': 'text/html' });
response.end(content, 'utf-8');
});
}
else {
response.writeHead(500);
response.end('Sorry, check with the site admin for error: '+error.code+' ..\n');
}
}
else {
response.writeHead(200, { 'Content-Type': contentType });
response.end(content, 'utf-8');
}
});
}).listen(8125);
console.log('Server running at http://127.0.0.1:8125/');Copyright © 2021 Codeinu
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