フィルタを使用してログインの確認

以前はフィルタはコードを処理するだけだったかもしれませんが、今回のプロジェクトでは他のメンバーがフィルタを使ってログインしているかどうかを検証していることに気づき、それに応じて転向して、本当にいいことに気づきました.判断のためにページを書く必要はありません.そして、各ページに含めて、actionでログインしたかどうかを判断してから、対応するビジネスロジック処理をする必要はありません.やはりプロジェクトの経験が足りないようですね..
フィルタ

package com.lhcard.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.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * @author:  
 * @date:2008-5-23
 * 
 */
public class GeRenLoginFilter implements Filter {

	private final static String[] eixt_url = { "index.jsp", "userlogin.jsp",
			"relogin.jsp", "uholdcard.do", "/js", "/css", "/images",
			"cgoods.do", "keywordslist.jsp", "regprotocol.jsp", "register.jsp",
			"uarea.do" }; //         URL

	public void doFilter(ServletRequest request, ServletResponse response,
			FilterChain chain) throws ServletException, IOException {

		HttpServletRequest req = (HttpServletRequest) request;
		HttpServletResponse res = (HttpServletResponse) response;
		boolean haveFind = true;

		// System.out.println("req.getRequestURI()==="+req.getRequestURI());

		if (req.getRequestURI().indexOf(".jsp") >= 0
				|| req.getRequestURI().indexOf(".do") >= 0)
			haveFind = false;

		for (int i = 0; i < eixt_url.length; i++) {
			if (req.getRequestURI().indexOf(eixt_url[i]) >= 0) {
				haveFind = true;
				break;
			}
		}

		// System.out.println("haveFind==="+haveFind);

		if (!haveFind && req.getSession().getAttribute("user") == null) {
			res.sendRedirect(req.getContextPath() + "/GeRen/relogin.jsp");
			// System.out.println("----redirect----");
			return;
		}
		chain.doFilter(req, res);
	}

	public void init(FilterConfig filterConfig) throws ServletException {
	}

	public void destroy() {
	}

}

web.xmlでの構成

	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee 
	http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
	       
	
		Set Character Encoding
		com.lhcard.common.SetEncodingFilter
		
			encoding
			gbk
		
	
	
		HibernateSessionFilter
		
			com.lhcard.common.HibernateSessionFilter
		
	
	
		FaKaRenLoginFilter
		
			com.lhcard.common.FaKaRenLoginFilter
		
	
	
		ShangHuLoginFilter
		
			com.lhcard.common.ShangHuLoginFilter
		
	
	
		YunYingLoginFilter
		
			com.lhcard.common.YunYingLoginFilter
		
	
	
		ChiKaRenFilter
		
			com.lhcard.common.ChiKaRenFilter
		
	
	
		GeRenLoginFilter
		
			com.lhcard.common.GeRenLoginFilter
		
	
	
		Set Character Encoding
		/*
	
	
		HibernateSessionFilter
		*.do
	
	
		FaKaRenLoginFilter
		/FaKaRen/*
	
	
		ShangHuLoginFilter
		/ShangHu/*
	
	
		YunYingLoginFilter
		/YunYing/*
	
	
		ChiKaRenFilter
		/ChiKaRen/*
	
	
		GeRenLoginFilter
		/GeRen/*
	

	STRUTS ActionServlet  
	
		action
		
			org.apache.struts.action.ActionServlet
		
		
			config
			
				/WEB-INF/struts-config.xml,
				/WEB-INF/struts-config-chikaren.xml,
				/WEB-INF/struts-config-geren.xml,
				/WEB-INF/struts-config-shanghu.xml,
				/WEB-INF/struts-config-yunying.xml,
				/WEB-INF/struts-config-fakaren.xml
			
		
		
			debug
			3
		
		
			detail
			3
		
		0
	
	
		action
		*.do
	

	
		getalllist
		com.lhcard.common.GetAllList

		2
	

	
	
		Connector
		
			com.fredck.FCKeditor.connector.ConnectorServlet
		
		
			baseDir
			/UserFiles/
		
		
			debug
			true
		
		1
	


	
		SimpleUploader
		
			com.fredck.FCKeditor.uploader.SimpleUploaderServlet
		
		
			baseDir
			/UserFiles/
		
		
			debug
			true
		
		
			enabled
			true
		
		
			AllowedExtensionsFile
			
		
		
			DeniedExtensionsFile
			
				php|php3|php5|phtml|asp|aspx|ascx|jsp|cfm|cfc|pl|bat|exe|dll|reg|cgi
			
		
		
			AllowedExtensionsImage
			jpg|gif|jpeg|png|bmp
		
		
			DeniedExtensionsImage
			
		
		
			AllowedExtensionsFlash
			swf|fla
		
		
			DeniedExtensionsFlash
			
		
		1
	

	
		Connector
		
			/FCKeditor/editor/filemanager/browser/default/connectors/jsp/connector
		
	

	
		SimpleUploader
		
			/FCKeditor/editor/filemanager/upload/simpleuploader
		
	


	
		index.jsp
	
	       
	
		
			/WEB-INF/app.tld
			/WEB-INF/app.tld
		
		
			/WEB-INF/struts-bean.tld
			/WEB-INF/struts-bean.tld
		
		
			/WEB-INF/struts-html.tld
			/WEB-INF/struts-html.tld
		
		
			/WEB-INF/struts-logic.tld
			/WEB-INF/struts-logic.tld
		
		
			/WEB-INF/struts-nested.tld
			
				/WEB-INF/struts-nested.tld
			
		
		
			/WEB-INF/struts-template.tld
			
				/WEB-INF/struts-template.tld
			
		
		
			/WEB-INF/struts-tiles.tld
			/WEB-INF/struts-tiles.tld
		

		
			/FCKeditor
			/WEB-INF/FCKeditor.tld
		
	
	
		720