jsp注释中文乱码 javaweb开发中，request器对象导致中文乱码过(3)

ChineseMessyCodeFilter类

package com.jiongmeng.filter;

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;

/**
 * 
 * 中文乱码过滤器(请求前过滤器)
 * @author czh
 * @time 2017年10月12日 下午10:48:17
 */
public class ChineseMessyCodeFilter implements Filter{
	private String characterEncoding = "utf-8";

	@Override
	public void destroy() {
		System.out.println("*******************中文乱码过滤器destroy()*******************");
	}

	@Override
	public void doFilter(ServletRequest request, ServletResponse response, FilterChain filterChain)
			throws IOException, ServletException {
		request.setCharacterEncoding(characterEncoding);
		System.out.println("*********************脱衣服洗澡!(请求前过滤)*********************"); //前过滤
//		System.out.println("请求servlet资源路径 = " + ((HttpServletRequest)request).getServletPath());
//		System.out.println("请求方式(get / post) = " + ((HttpServletRequest)request).getMethod());
		filterChain.doFilter(request, response);
		System.out.println(response.getClass());
		System.out.println("*********************穿衣服准备出门!(请求后过滤)*********************");//后过滤
		
	}

	@Override
	public void init(FilterConfig filterConfig) throws ServletException {
		System.out.println("filterName = " + filterConfig.getFilterName());
		characterEncoding = filterConfig.getInitParameter("characterEncoding");
		Enumeration<String> names = filterConfig.getInitParameterNames();
		while (names.hasMoreElements()) {
			String name = (String) names.nextElement();
			System.out.println(name + " = " + filterConfig.getInitParameter(name));
		}
		System.out.println("*******************中文乱码过滤器init()*******************");
	}

}

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