encodefilter.java

java学习的必要的资料,servlet的说明很好

package com.estore.struts.utils;

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;

/*
 * 控制字符编码的过滤器。
 * 
 */

public class EncodeFilter implements Filter{

	public void destroy() {
	}

	public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
		request.setCharacterEncoding("UTF-8");
		response.setContentType("text/html,charset=UTF-8");
		response.setCharacterEncoding("UTF-8");
		chain.doFilter(request, response);
	}

	public void init(FilterConfig arg0) throws ServletException {
	}

}