利用JSP中的过滤器解决中文乱码问题

首先我们创建过过滤器：

package com.gbx;



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;





public class Zh_Filter implements Filter{



	public void destroy() {

		// TODO Auto-generated method stub

		System.out.println("destroy ...");

	}



	public void doFilter(ServletRequest request, ServletResponse response,

			FilterChain chain) throws IOException, ServletException {

		

		//设置内置对象的字符集

		request.setCharacterEncoding("gb2312");

		response.setCharacterEncoding("gb2312");

		//处理过滤

		chain.doFilter(request, response);

	}



	public void init(FilterConfig arg0) throws ServletException {

		// TODO Auto-generated method stub

		System.out.println("init .. ");

	}



}

　　

然后再web.xml中配置过滤器：

<filter>

  	<filter-name>filter</filter-name>

  	<filter-class>com.gbx.Zh_Filter</filter-class>

  </filter>

  <filter-mapping>

  	<filter-name>filter</filter-name>

 	<url-pattern>/*</url-pattern>

  </filter-mapping>