服务器传递页面文件

import java.io.*;
import java.net.*;

public class Net {
    public static void main(String[] args) {
        try {
            ServerSocket ss = new ServerSocket(80);
            System.out.println("Web Server OK!");
            while(true) {
                Socket s = ss.accept();
                vebserv v = new vebserv(s);
                Thread t = new Thread(v);
                t.start();
            }
        } catch(Exception e) {}
    }
}

class vebserv implements Runnable {
    Socket s;
    static int i;
    public vebserv(Socket s1) {
        s = s1;
    }
    public void run() {
        try {
            PrintStream out = new PrintStream(s.getOutputStream());
            BufferedReader in = new BufferedReader(new InputStreamReader(s.getInputStream()));
            String info = in.readLine();
            System.out.println("now get: " + info);
            out.println("HTTP/1.0");
            out.println("Content_Type: text/html");
            out.println("");
            int sp1 = info.indexOf(' ');
            int sp2 = info.indexOf(' ',sp1+1);
            String fn = info.substring(sp1+2,sp2);
            if(fn.equals("") || fn.endsWith("/")) fn = fn + "index.html";
            System.out.println("sending file: " + fn + " to client");
            InputStream fs = new FileInputStream(fn);
            byte buf[] = new byte[1024];
            int n;
            while((n = fs.read(buf)) >= 0) {
                out.write(buf,0,n);
            }
            out.close();
            s.close();
            in.close();
        } catch(Exception e) {}
    }
}