秀出 HTTP Header (Java)

秀出 HTTP Header 的小程式 SD_HTTPTest.class
HTTP GET Request 是用 Packetyzer 偷看 Firefox 的 GET 而來的
這個小程式純粹教學用途, 所以很陽春

// shinder.lin@gmail.com
// www.riarock.com
import java.net.*;
import java.io.*;
import java.util.*;
import java.nio.charset.*;

public class SD_HTTPTest
{
 public static void main(String arg[])
 {
  String uri = "shinder.idv.tw";
  try
  {
   if(arg.length >= 1){
    uri = arg[0];
   }
   Socket mySocket = new Socket(uri, 80);
  
   if(mySocket.isConnected())
   {
    OutputStream out = mySocket.getOutputStream();
    BufferedWriter bWriter = new BufferedWriter(
     new OutputStreamWriter(out));
    String msg = "GET / HTTP/1.1\r\n"+
     "Host: "+uri+"\r\n"+
     "User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; zh-TW; rv:1.7.12) Gecko/20050919 Firefox/1.0.7\r\n"+
     "Accept: application/x-shockwave-flash,text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5\r\n"+
     "Accept-Language: zh-tw,en-us;q=0.7,en;q=0.3\r\n"+
     "Accept-Encoding: gzip,deflate\r\n"+
     "Accept-Charset: Big5,utf-8;q=0.7,*;q=0.7\r\n"+
     "Keep-Alive: 300\r\n"+
     "Connection: keep-alive\r\n\r\n";
    bWriter.write(msg);
    bWriter.flush();
   }else{
    System.out.println("Not Connected");
   }
  
   if(mySocket.isConnected())
   {
    InputStream in = mySocket.getInputStream();
    BufferedReader bReader = new BufferedReader(
     new InputStreamReader(in));
    char cbuf[] = new char[4096];
    //去除多餘的字元
    bReader.read(cbuf);
    int count = 0;
    for(count=0; count < cbuf.length; count++){
     if(cbuf[count] == 0){
      break;
     }
    }
    String msg = new String(cbuf, 0, count);
    System.out.println(msg);
   }
  }
  catch(IOException ex){
   System.out.println("連結錯誤！");
  }
  catch(Exception ex){
   System.out.println("發生例外："+ex.toString());
  }
 }
}