encodingfilter.java

北大青鸟的租房网练习文件

package com.newer.common;

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.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class EncodingFilter extends HttpServlet implements Filter{

	public void destroy() {
		// TODO Auto-generated method stub
		
	}
	//编码的过滤
	public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
		System.out.println("进入过滤器了----");
		request.setCharacterEncoding("utf-8");
		response.setContentType("text/html;charset=utf-8");
//		HttpServletRequest httpRequest=(HttpServletRequest)request;
//		httpRequest.setCharacterEncoding("UTF-8");
//		HttpServletResponse httpResponse=(HttpServletResponse)response;
//		httpResponse.setCharacterEncoding("text/html; charset=utf-8");
		
       // if(!"/login.do".equals(httpRequest.getServletPath().trim())){
			
		//if(httpRequest.getSession().getAttribute("UNAME")==null ){
			//	httpRequest.getRequestDispatcher("/index.jsp").forward(httpRequest, httpResponse);
			//}
	//	}
//		chain.doFilter(httpRequest, httpResponse);
		chain.doFilter(request, response);
		
	   
	}

	public void init(FilterConfig arg0) throws ServletException {
		// TODO Auto-generated method stub
		
	}

}