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锁定老帖子 主题：EXT Servelt Filter问题
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发表时间：2012-05-11
只有一个filter
web.xml
<filter>
<filter-name>loginFilter</filter-name>
<filter-class>com.app.LoginFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>loginFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<welcome-file-list>
<welcome-file>login.jsp</welcome-file>
</welcome-file-list>
LoginFilter.java
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain chain) throws IOException, ServletException {
System.out.println("filter ......");
HttpServletRequest req=(HttpServletRequest)request;
HttpServletResponse res = (HttpServletResponse) response;
HttpSession session=req.getSession();
String uri = req.getRequestURI();
if(session.getAttribute("user_role")!=null|| uri.endsWith("login.js")||uri.endsWith("login.jsp")||uri.endsWith("/sso/")) {
System.out.println("funcation ..");
chain.doFilter(req, res);
return ;
}else{
System.out.println("else..");
RequestDispatcher dispatcher = req.getRequestDispatcher("login.jsp");
dispatcher.forward(req, res);
}
}
}
login.jsp
<%@ include file="/common/packages.jsp"%>
<%@ page language="java" import="java.util.*" pageEncoding="GB18030"%>
<html>
<head>
<title></title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<script type="text/javascript" src="<%=ctx%>/login.js"></script>
</head>
<body>
</body>
</html>
当 if(session.getAttribute("user_role")!=null|| uri.endsWith("login.js")||uri.endsWith("login.jsp")||uri.endsWith("/sso/")) 成立后页面出现空白，没有下面执行，理想的效果是成立后返回login.jsp登陆页面。 不成立也返回login.jsp.因为是页面所以要跳过login.jsp页面判断。
现在的问题还有： 1、访问http://loclahost:8080/sso回车不执行filter，得点击刷新，才走filter,如果访问http://loclahost:8080/sso/fdsffs回车执行filter。 2、不明白为什么打印出这么多，把 /common/packages.jsp里的都打印出来了。 filter ...... /sso/ funcation .. filter ...... /sso/ext/resources/css/ext-all.css else.. filter ...... /sso/ext/examples/menu/menus.css else.. filter ...... /sso/ext/examples/tabs/tab-scroller-menu.css else.. filter ...... /sso/css/public.css else.. filter ...... /sso/css/main.css else.. filter ...... /sso/css/icon.css else.. filter ...... /sso/ext/js/ext-base.js else.. filter ...... /sso/js/Application.js else.. filter ...... /sso/ext/js/ext-all.js filter ...... else.. /sso/js/public.js else.. filter ...... /sso/ext/examples/ux/ext-lang-zh_CN.js else.. filter ...... /sso/ext/examples/ux/TabCloseMenu.js else.. filter ...... /sso/ext/examples/ux/ux-all.js else.. filter ...... /sso/login.js funcation .. 3、目标是实现权限的控制。在EXT框架里会有这一些问题，但在搭建一个的servelt工程是没问题的。 声明：ITeye文章版权属于作者，受法律保护。没有作者书面许可不得转载。
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