Java实现一个简单 HTTP 服务器的代码，java代码,这是一个直接用Java自

Java实现一个简单 HTTP 服务器的代码，java代码,这是一个直接用Java自

这是一个直接用Java自带的API实现的超轻量级的HTTP服务器，没有使用第三方类库。```javaimport java.io.IOException;import java.io.OutputStream;import java.net.InetSocketAddress;import java.util.Iterator;import java.util.List;import java.util.Set;import java.util.concurrent.Executors;

import com.sun.net.httpserver.Headers;import com.sun.net.httpserver.HttpExchange;import com.sun.net.httpserver.HttpHandler;import com.sun.net.httpserver.HttpServer;

public class HttpServerDemo { public static void main(String[] args) throws IOException { InetSocketAddress addr = new InetSocketAddress(8080); HttpServer server = HttpServer.create(addr, 0);

server.createContext("/", new MyHandler());server.setExecutor(Executors.newCachedThreadPool());server.start();System.out.println("Server is listening on port 8080" );

}}

class MyHandler implements HttpHandler { public void handle(HttpExchange exchange) throws IOException { String requestMethod = exchange.getRequestMethod(); if (requestMethod.equalsIgnoreCase("GET")) { Headers responseHeaders = exchange.getResponseHeaders(); responseHeaders.set("Content-Type", "text/plain"); exchange.sendResponseHeaders(200, 0);

  OutputStream responseBody = exchange.getResponseBody();  Headers requestHeaders = exchange.getRequestHeaders();  Set<String> keySet = requestHeaders.keySet();  Iterator<String> iter = keySet.iterator();  while (iter.hasNext()) {    String key = iter.next();    List values = requestHeaders.get(key);    String s = key + " = " + values.toString() + "\n";    responseBody.write(s.getBytes());  }  responseBody.close();}

}}```