JSP过滤器方式无损坏给图片添加水印

JSP过滤器方式实现无损坏给图片添加水印

package com;

import java.io.IOException;
import java.util.Enumeration;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;


/**
 * 
 * @author 仰天ying笑
 *	
 */
public class MyFilter implements Filter {

	public void destroy（） {
	}

	public void doFilter（ServletRequest request ServletResponse response
			FilterChain fc） throws IOException ServletException {
		HttpServletRequest req=（HttpServletRequest）request;
		String path=req.getServletPath（）;
		String pathStr=path.substring（path.lastIndexOf（“.“）+1）;
		String realTarget=““;
		String realWater=““;
		if

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----

     文件       1415  2009-09-12 00:52  watermark\.project

     文件       1252  2009-09-12 23:45  watermark\src\com\WaterMark.java

     文件       1196  2009-09-12 23:46  watermark\src\com\MyFilter.java

     文件       2108  2009-09-12 23:46  watermark\WebRoot\WEB-INF\classes\com\MyFilter.class

     文件       1910  2009-09-12 23:45  watermark\WebRoot\WEB-INF\classes\com\WaterMark.class

     文件        624  2009-09-12 22:34  watermark\WebRoot\WEB-INF\web.xml

     文件         39  2009-09-11 22:24  watermark\WebRoot\meta-INF\MANIFEST.MF

     文件        601  2009-09-12 23:46  watermark\WebRoot\index.jsp

     文件       7374  2009-09-12 00:39  watermark\WebRoot\image\9286670.jpg

     文件       6222  2009-09-12 00:39  watermark\WebRoot\image\9293343.jpg

     文件       9300  2009-09-12 00:39  watermark\WebRoot\image\9293450.jpg

     文件       6281  2009-09-12 00:39  watermark\WebRoot\image\9316709.jpg

    ..A.SH.     17408  2009-09-12 23:32  watermark\WebRoot\image\Thumbs.db

     文件      13234  2009-09-12 23:21  watermark\WebRoot\image\WaterMark.jpg

     文件        300  2009-09-11 22:25  watermark\.mymetadata

     文件        362  2009-09-11 22:24  watermark\.classpath

     文件        406  2009-09-11 22:24  watermark\.settings\.jsdtscope

     文件          6  2009-09-11 22:24  watermark\.settings\org.eclipse.wst.jsdt.ui.superType.name

     文件         49  2009-09-11 22:24  watermark\.settings\org.eclipse.wst.jsdt.ui.superType.container

     目录          0  2009-09-12 21:18  watermark\WebRoot\WEB-INF\classes\com

     目录          0  2009-09-11 22:24  watermark\WebRoot\WEB-INF\lib

     目录          0  2009-09-11 22:24  watermark\WebRoot\WEB-INF\classes

     目录          0  2009-09-11 22:26  watermark\src\com

     目录          0  2009-09-11 22:24  watermark\WebRoot\WEB-INF

     目录          0  2009-09-11 22:24  watermark\WebRoot\meta-INF

     目录          0  2009-09-12 00:38  watermark\WebRoot\image

     目录          0  2009-09-11 22:24  watermark\src

     目录          0  2009-09-11 22:24  watermark\WebRoot

     目录          0  2009-09-11 22:24  watermark\.myeclipse

     目录          0  2009-09-11 22:24  watermark\.settings

............此处省略4个文件信息