servlet-filters

configure the same servlet to different mappings and set for each a different security

I have a web application that is made of a servlet, let's call it myservlet. There are two different pattern matching the same servlet, let's call them /patterna/* and /patternb/* Assume I want to 1. attach to myservlet a chain of servlet filters, and I want this chain is different in the case I invoke the servlet with patterna and wit...

doFilter not getting called

Could you help to check why doFilter not getting called web.xml: <?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://ja...

How to make run a servlet filter?

Hi, For my web application, i have created login page. To block the access to the other pages i setup a filter. But while running the web app, it gives Servlet class com.pricar.grid.AuthenticationFilter is not a javax.servlet.Servlet. I also cant able to get the proper result. Here my Code: filter config in web.xml <?xml version="1...

Servlet filter url mapping

How can a filter be mapped to the root of a URL? I'm using Tomcat 7.0.2 and deploying an application as ROOT.war. The welcome page is sign_in.xhtml. I would like to run a filter whenever the client sends a request for the root of the site (i.e. the domain name only), or when the the client requests sign_in.xhtml. Here is what I have s...

How to skip a filter in the filter chain in java

Hi All, I have 2 filters in my application. Based on some condition, I want to choose whether to execute the second filter or not. Is there a way to do this? I did some googling with no success. I want the request to continue without executing the second filter. Is that possible? Any help will be appreciated. ...

Arabic characters appears like ??? after adding a Filter to JSP page

When I add a Filter to a particular JSP file, the Arabic characters in the output appears like ???, even when the page encoding is been set to UTF-8 by <% @page pageEncoding="UTF-8"%> and <% response.setCharacterEncoding("UTF-8");%>. The strange thing is, before I added the Filter, the output of all Arabic pages appears with correct e...

From within a servlet how do you access a variable set inside a corresponding servlet filter?

I'd like to use the following filter to open and close persistence managers. public final class PersistenceFilter implements Filter { private static final PersistenceManagerFactory persistenceManagerFactory = JDOHelper.getPersistenceManagerFactory("transactions-optional"); private static PersistenceManagerFactory factor...

difference between servlet lifecycle and filter lifecycle

is there any difference between servlet and filter lifecycle?. ...

How to get response from this filter?

The following servlet filter is getting called, but not able to give the correct response. I just looping inside the filter itself. The Browser says, The page isn't redirecting properly Firefox has detected that the server is redirecting the request for this address in a way that will never complete. ExpenseAuthenticationFilter.class...

How to configure a filter to work after servlet processing?

The problem in brief is that i want a certain filter to run after servlet processing to check for a value in the request attributes and based on that value it redirects to a certain URl. In web.xml, i have put the element the last in order, and in side the doFilter method i call "chain.doFilter(request, response);" the first line then...

Java deflate response

Hello all I want to make a filter for tomcat to deflate all responces of certain MIME type. Any guidelines? ... String ae = request.getHeader("accept-encoding"); if (ae != null && ae.indexOf("deflate") != -1) { deflate response...????? } chain.doFilter(request, res); ...

Tomcat compression is disabled when custom filters are used

I have a question regarding the use of Tomcat 6.0.14, and the interaction between the Tomcat built in compression, and custom filters. I am just using Tomcat - with no http server in front. My problem is that when I enable my filter, the compression seems to be disabled. This is observed by examining the output from a Fiddler trace. An...

URL mapping in servlet filter

I already have two filters, which typically checks for a valid session. If session is valid it ll redirect to the ExpenseDetailsManagement.html else ExpenseManagementLogin.html. The web.xml config looks like, <filter> <filter-name>ExpenseAuthentication</filter-name> <filter-class>com.pricar.hibernate.ExpenseAuthentication</...

Filter mapping for everthing to Struts2 besides one servlet?

I have a Struts2 (2.1.8.1) web application. My web.xml looks like, <filter> <filter-name>struts2</filter-name> <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class> </filter> <filter-mapping> <filter-name>struts2</filter-name> <url-pattern>/*</url-pattern> </filter-m...

Spring Framework filter, bean not injected

There are 2 entries for a Servlet Filter, one in web.xml and one in Spring applicationContext.xml I added the filter into applicationContext.xml because I wanted to inject creditProcessor bean into it. The only problem is that the entry in web.xml got picked up by JBoss and then used, so creditProcessor is null. Do I have to use Sprin...

How do I implement a dummy filter to exclude a file from being filtered?

Hi, I am trying to implement a filter for all my files excluding login.jsp. I understand that filter mapping cannot exclude certain files. What I need to do is to create another filter to map just the login.jsp. How do I create another file that with url pattern /login.jsp and without SessionFilter being processed after it? Here is part ...

How to intercept custom HTTP header value and store it in Wicket's WebSession?

I need to grab a certain custom HTTP header value from every request and put it in WebSession so that it will be available on any WebPage later on. (I believe the Wicket way to do this is to have a custom class extending WebSession that has appropriate accessors.) My question is, what kind of Filter (or other mechanism) I need to be abl...

Seam: Session component is null and taglibs are compiled in each request

Hi all, I made a change to our cluster-deployed application to be authenticated via Oracle SSO with Dynamic Directives using a servlet Filter. The filter sits in front of all the application (even in front of the Seam filter). If the request is a servlet request and the principal is null, then I redirect to SSO for authentication. This...

Servlet Filters and Threading?

I am building a webservice on Weblogic 10.3.3 and I am using a servlet filter to log the request to a database. I do not want the filter to slow down the call to the webservice. So I actually have 2 questions. 1) Does the filter, or can I make the filter do the logging on a separate thread? if so how? 2) is there a way I can dynamicall...

Setup a Filter that will set the Response Header to only Image File(s)

I am having a caching problem based on the discussion that I have in this link But I am not sure how to go about with the suggestion on setting the response headers on my Spring MVC. Does anybody know how to setup a some sort of a filter that will add add a response header only on image files? I currently am not an expert on J2EE web ...