简单Java web服务器代码

  服务端程序：

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package myftp.ftp;import java.net.*;import java.io.*;public class Server{private int port = 80;private boolean flag = false;public Server(int port){this.port = port;}public static void main(String[] args){Server server = new Server(2000);server.start();}public void start(){try{ServerSocket ss = new ServerSocket(port);while(!flag){Socket s = ss.accept();ReceiveHander rec = new ReceiveHander(s);Thread t = new Thread(rec);t.start();}}catch(IOException e){e.printStackTrace();}}}

 

服务端接收器类：

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package myweb;import java.io.BufferedInputStream;import java.io.File;import java.io.FileInputStream;import java.io.IOException;import java.io.InputStream;import java.io.OutputStream;import java.io.PrintWriter;import java.net.Socket;import java.util.Scanner;public class ReceiveHandler extends Thread {private Socket socket;public ReceiveHandler(Socket socket) {this.socket = socket;}@Overridepublic void run() {try {InputStream in = socket.getInputStream();OutputStream out = socket.getOutputStream();Scanner sc = new Scanner(in);PrintWriter pw = new PrintWriter(out);String message = "";String uri = "";while (null != (message = sc.nextLine())) {System.out.println(message);if (message.length() == 0) {break;}if (message.startsWith("GET")) {uri = message.split(" ")[1];}}File file = new File("webapp" + uri);if (file.exists()) {pw.println("HTTP/1.1 200 OK/n" + "Last-Modified: "+ new java.util.Date(file.lastModified()) + "/n"+ "Date: " + new java.util.Date() + "/n"+ "Status: 200/n" + "Content-Type: text/html/n"+ "Servlet-Engine: My Web Server/0.1/n"+ "Content-Length: " + file.length() + "/n" + "/n");pw.flush();InputStream fin = new BufferedInputStream(new FileInputStream(file));byte[] buffer = new byte[1024];int i = 0;while (-1 != (i = fin.read(buffer))) {out.write(buffer, 0, i);}out.flush();fin.close();} else {pw.println("File not found");pw.flush();}socket.close();} catch (IOException e) {e.printStackTrace();}}}

 

第一次发的，因为自己正在学习Java，属菜鸟