请问传输并显示图像的快速方法！！急切烦请大家给些意见啊！！急！！

    //根据URL取图片 
    public ImageIcon getImageIcon2(String urlStr)
    {
            try
           {
	System.out.println("getIcon Begin");
	ImageIcon toII=new ImageIcon(new URL(urlStr));
	System.out.println("getIcon End");
	
               return toII;
           }
           catch(Exception e)
          {
	System.out.println("getIcon error");
	return null;
          }
    }

//在servlet中发送ImageIcon对象的方法
	public void doPost(HttpServletRequest request,HttpServletResponse response)
	throws ServletException,IOException
	{
	        ObjectInputStream in=null;
                        ObjectOutputStream out=null;
		
	        ImageIcon ii=null;

	        try
	      {
		in=new ObjectInputStream(request.getInputStream());
		out=new ObjectOutputStream(response.getOutputStream());
                               
                                
                                ii=getImageIcon2("http://xxxx/1.jpg");     //参数是一个图片的url，位于其它机器上
                     //发送图像			
                     out.writeObject(ii);
               }
                      catch(Exception e)
                      . . .. . 

try {
            URL url1 = new URL(IMGSERVERADDR);         //参数是被访问的servlet的url
            conn = url1.openConnection();
            //使浏览器不缓存这个URL
            conn.setUseCaches(false);
            //允许接收服务器发来的数据
        conn.setDoInput(true);
            //允许发送数据到服务器
        conn.setDoOutput(true);

            //发送请求地图的字符串
        objOutputS = new ObjectOutputStream(conn.getOutputStream());
            objOutputS.writeObject(str);       

            //启动ExecuteRequest线程以执行接收并画出图像的任务
        ExecuteRequest0809 exeR = new ExecuteRequest0809();
            Thread exec = new Thread(exeR);
            exec.start();
            .. .. ..
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