myfilter.java

本文件是设计学习的很好的书籍

package com.filter;

import java.io.IOException;

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;
import javax.servlet.http.HttpServletResponse;

public class MyFilter implements Filter {

	public void destroy() 
	{
		

	}

	public void doFilter(ServletRequest arg0, ServletResponse arg1,
			FilterChain arg2) throws IOException, ServletException 
	{
		HttpServletRequest request = (HttpServletRequest) arg0;
		HttpServletResponse response = (HttpServletResponse) arg1;
		request.setCharacterEncoding("gb2312");
		response.setCharacterEncoding("gb2312");
		arg2.doFilter(request, response);

	}

	public void init(FilterConfig arg0) throws ServletException 
	{
		

	}

}