SimpleHttpServer 阻塞模式

浏览数：56 / 时间：2015年06月09日

SimpleHttpServer.java

import java.io.FileInputStream;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.net.Socket;
import java.nio.ByteBuffer;
import java.nio.CharBuffer;
import java.nio.channels.FileChannel;
import java.nio.channels.ServerSocketChannel;
import java.nio.channels.SocketChannel;
import java.nio.charset.Charset;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

public class SimpleHttpServer {

    private int port = 8088;
    private ServerSocketChannel serverSocketChannel = null;
    private ExecutorService executorService;
    private static final int POOL_MULTIPLE = 4;
    
    public SimpleHttpServer() throws IOException {
        executorService = Executors.newFixedThreadPool(Runtime.getRuntime().availableProcessors() * POOL_MULTIPLE);
        serverSocketChannel = ServerSocketChannel.open();
        serverSocketChannel.socket().setReuseAddress(true);
        serverSocketChannel.socket().bind(new InetSocketAddress(port));
        System.out.println("Server Starting...");
    }
    
    
    public void service() {
        while(true) {
            SocketChannel socketChannel = null;
            try {
                socketChannel = serverSocketChannel.accept();
                executorService.execute(new Handler(socketChannel));
            }
            catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
    
    
    public static void main(String[] args) throws IOException {
        new SimpleHttpServer().service();
    }
    
    
    class Handler implements Runnable {
        
        private SocketChannel socketChannel;
        
        public Handler(SocketChannel socketChannel) {
            this.socketChannel = socketChannel;
        }
        
        public void run() {
            handle(socketChannel);
        }
        
        public void handle(SocketChannel socketChannel) {
            
            FileInputStream in = null;
            
            try {
                Socket socket = socketChannel.socket();
                System.out.println("Connecting from: " + socket.getInetAddress() + ":" + socket.getPort());
                
                ByteBuffer buffer = ByteBuffer.allocate(1024);
                socketChannel.read(buffer);
                buffer.flip();
                String request = decode(buffer);
                System.out.print(request);
                
                StringBuffer sb = new StringBuffer("HTTP/1.1 200 OK\r\n");
                sb.append("Content-Type:text/html\r\n\r\n");
                socketChannel.write(encode(sb.toString()));
                
                String firstLineOfRequest = request.substring(0, request.indexOf("\r\n"));
                if(firstLineOfRequest.indexOf("login.htm") != -1)
                    in = new FileInputStream("login.htm");
                else
                    in = new FileInputStream("hello.htm");
                
                FileChannel fileChannel = in.getChannel();
                fileChannel.transferTo(0, fileChannel.size(), socketChannel);
            }
            catch (Exception e) {
//                e.printStackTrace();
            }
            finally {
                try {
                    if(socketChannel != null) 
                        socketChannel.close();
                    if(in != null) 
                        in.close();
                }
                catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
        
        
        private Charset charset = Charset.defaultCharset();
        
        public String decode(ByteBuffer buffer) {
            
            CharBuffer charbuff = charset.decode(buffer);
            return charbuff.toString();
        }
        
        public ByteBuffer encode(String str) {
            
            return charset.encode(str);
        }
    }
}

<html lang="zh-cn">
<head>
    <title>login.htm</title>
    <meta charset="utf-8"> 
</head>
<body>
    <form name="loginForm" method="post" action="hello.htm">    /* <form name="loginForm" method="get" action="hello.htm"> */
        <table>
            <tr><td><div align="right">用户名: </div></td>
                <td><input type="text" name="username"></td>
            </tr>
            <tr><td><div align="right">口令: </div></td>
                <td><input type="password" name="password"></td>
            </tr>
            <tr><td></td>
                <td><input type="submit" name="submit" value="submit"></td>
            </tr>
        </table>
    </form>
</body>
</html>

hello.htm

<html lang="zh-cn">
<head>
    <title>hello.htm</title>
    <meta charset="utf-8"> 
</head>
<body>
    <p>It works!</p>
</body>
</html>

// GET request (default)

GET /login.htm HTTP/1.1
Accept: */*
Accept-Language: zh-CN
User-Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0; qdesk 2.5.1277.202; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0)
Accept-Encoding: gzip, deflate
Host: 127.0.0.1:8088
Connection: Keep-Alive

// POST request

POST /hello.htm HTTP/1.1
Accept: image/jpeg, application/x-ms-application, image/gif, application/xaml+xml, image/pjpeg, application/x-ms-xbap, */*
Referer: http://127.0.0.1:8088/login.htm
Accept-Language: zh-CN
User-Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0; qdesk 2.5.1277.202; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0)
Content-Type: application/x-www-form-urlencoded
Accept-Encoding: gzip, deflate
Host: 127.0.0.1:8088
Content-Length: 49
Connection: Keep-Alive
Cache-Control: no-cache

username=username&password=password&submit=submit

// Get request with variables

GET /hello.htm?username=username&password=password&submit=submit HTTP/1.1
Accept: image/jpeg, application/x-ms-application, image/gif, application/xaml+xml, image/pjpeg, application/x-ms-xbap, */*
Referer: http://127.0.0.1:8088/login.htm
Accept-Language: zh-CN
User-Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0; qdesk 2.5.1277.202; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0)
Accept-Encoding: gzip, deflate
Host: 127.0.0.1:8088
Connection: Keep-Alive

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SimpleHttpServer 阻塞模式