package?com.mucfc;

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;
import?javax.servlet.http.HttpSession;
	/**?
	?*??
	?*?權限過濾器?
	?*??
	?*?*/????
	public?class?AuthorityFilter?implements?Filter?{
		?private?FilterConfig?config;??
		@Override
		public?void?destroy（）?{
			?this.config=null;??
		}

		@Override
		public?void?doFilter（ServletRequest?request?ServletResponse?response
				FilterChain?chain）?throws?IOException?ServletException?{
			//獲取Filter配置參數??
	????????String?encoding=config.getInitParameter（“encoding“）;??
	????????String?loginPage=config.getInitParameter（“loginPage“）;??
	????????String?afterLogin=config.getInitParameter（“afterLogin“）;??
	????????//設置request編碼??
	????????request.setCharacterEncoding（encoding）;??
	????????HttpServletRequest?requ=（HttpServletRequest）?request;??
	????????HttpSession?session=requ.getSession（）;??
	????????//獲取客戶請求頁面??
	????????String?requestPath=requ.getServletPath（）;???
	????????String?name=requ.getParameter（“username“）;
	????????	if（name==““||name==null）{??
	????????????System.out.println（“權限攔截器的消息：“+“終止“）;??
	?????????HttpServletResponse?resq=（HttpServletResponse）response;
	????????????resq.sendRedirect（requ.getContextPath（）+loginPage）;
	????????}else{??
	????????????System.out.println（“權限攔截器的消息：“+“放行“）;??
	????????????request.setCharacterEncoding（“UTF-8“）;
	????????????chain.doFilter（request?response）;??
	????????}??
		}

		@Override
		public?void?init（FilterConfig?config）?throws?ServletException?{
			this.config=config;?
		}???
		
	}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2015-05-04?16:33??ServletLearningChapter2_2\
?????文件?????????841??2015-05-04?16:33??ServletLearningChapter2_2\.classpath
?????文件????????1058??2015-05-04?16:33??ServletLearningChapter2_2\.project
?????目錄???????????0??2015-05-04?16:41??ServletLearningChapter2_2\.settings\
?????文件?????????503??2015-05-04?16:33??ServletLearningChapter2_2\.settings\.jsdtscope
?????文件?????????106??2015-05-04?16:44??ServletLearningChapter2_2\.settings\org.eclipse.core.resources.prefs
?????文件?????????364??2015-05-04?16:33??ServletLearningChapter2_2\.settings\org.eclipse.jdt.core.prefs
?????文件?????????527??2015-05-04?16:33??ServletLearningChapter2_2\.settings\org.eclipse.wst.common.component
?????文件?????????345??2015-05-04?16:33??ServletLearningChapter2_2\.settings\org.eclipse.wst.common.project.facet.core.xml
?????文件??????????49??2015-05-04?16:33??ServletLearningChapter2_2\.settings\org.eclipse.wst.jsdt.ui.superType.container
?????文件???????????6??2015-05-04?16:33??ServletLearningChapter2_2\.settings\org.eclipse.wst.jsdt.ui.superType.name
?????目錄???????????0??2015-05-04?16:33??ServletLearningChapter2_2\build\
?????目錄???????????0??2015-05-17?13:48??ServletLearningChapter2_2\build\classes\
?????目錄???????????0??2015-05-17?13:48??ServletLearningChapter2_2\build\classes\com\
?????目錄???????????0??2015-05-17?13:48??ServletLearningChapter2_2\build\classes\com\mucfc\
?????文件????????2663??2015-05-17?13:48??ServletLearningChapter2_2\build\classes\com\mucfc\AuthorityFilter.class
?????目錄???????????0??2015-05-04?16:33??ServletLearningChapter2_2\src\
?????目錄???????????0??2015-05-04?16:33??ServletLearningChapter2_2\src\com\
?????目錄???????????0??2015-05-04?16:34??ServletLearningChapter2_2\src\com\mucfc\
?????文件????????1897??2015-05-04?18:35??ServletLearningChapter2_2\src\com\mucfc\AuthorityFilter.java
?????目錄???????????0??2015-05-04?16:41??ServletLearningChapter2_2\WebContent\
?????文件?????????567??2015-05-04?18:31??ServletLearningChapter2_2\WebContent\Login.jsp
?????文件?????????519??2015-05-04?17:32??ServletLearningChapter2_2\WebContent\Main.jsp
?????目錄???????????0??2015-05-04?16:33??ServletLearningChapter2_2\WebContent\meta-INF\
?????文件??????????39??2015-05-04?16:33??ServletLearningChapter2_2\WebContent\meta-INF\MANIFEST.MF
?????目錄???????????0??2015-05-04?16:40??ServletLearningChapter2_2\WebContent\WEB-INF\
?????目錄???????????0??2015-05-04?16:33??ServletLearningChapter2_2\WebContent\WEB-INF\lib\
?????文件????????1086??2015-05-04?18:42??ServletLearningChapter2_2\WebContent\WEB-INF\web.xml