jsp输出静态的图片

<%  
    File myGifFile = new File("e:\\aa\\haha.gif");  
    BufferedImage bufi = ImageIO.read(myGifFile);  
    response.reset();  
    response.setContentType("image/gif");  
    ImageIO.write(bufi, "gif", response.getOutputStream());  
%>  

<%@page import="java.io.*;"%>  
<%  
    response.reset();  
    response.setContentType("image/gif");  
    response.setHeader("Cache-Control", "no-cache");  
    response.setDateHeader("Expires", 0);  
    java.io.FileInputStream fis = new java.io.FileInputStream(new File("e:\\aa\\haha.gif"));  
    java.io.OutputStream os = response.getOutputStream();  
    byte[] buf = new byte[4096];  
    int bytes = 0;  
    while ((bytes = fis.read(buf)) != -1)  
        os.write(buf, 0, bytes);  
    fis.close();  
%>