An existing Java site is designed to run under "/" on tomcat and there are many specific references to fixed absolute paths like "/dir/dir/page". Want to migrate this to Java EE packaging, where the site will need to run under a context-root e.g. "/dir/dir/page" becomes "/my-context-root/dir/dir/page" Now, the context-root can be easil...
I have a web-app that I would like to extend to support multiple languages with new URLs. For example, www.example.com/home.do stays English, but www.example.com/es/home.do is Spanish. My first thought was to create a Filter which rewrites incoming urls like /es/home.do to /home.do (and sets the Locale in the Request); this works fine....
I have run into an issue in which IE does not open up the Save As/Open dialog box for an Excel document like Firefox does. So I have created a servlet filter that is using '*.xls' as the url pattern. The issue that I now face (since this is the first filter I have created) is how to get the name of the file that the user wants so that ...
we have a J2EE web application usig Spring MVC. We have a new requirement for our web application where we have to remove certain pre-defined characters from the user input. For example, let's say that the application should remove '<' from all the user inputs. I have come up with 2 approaches to meet this requirement : JSP Level : ide...
I've written a filter class to add a P3P header to every page. I added this to my web.xml: <filter> <filter-name>AddP3pHeaderFilter</filter-name> <filter-class>com.mycompany.AddP3pHeaderFilter</filter-class> </filter> <filter-mapping> <filter-name>AddP3pHeaderFilter</filter-name> <url-pattern>/*</url-pattern> </filter-m...
Right now I have a filter that has the sockets opened in the init and for some reason when I open them in doFilter() it doesn't work with the server app right so I have no choice but to put it in the init I need to be able to reference the outSide.println("test"); in doFilter() so I can send that to my server app every time the if state...
Any ideas about why doFilterHttp in my SpringSecurityFilter subclass is getting called twice on each request? I don't really know where to start looking. Feeling a little stumped. I'm reverse engineering a vacationing co-worker's code. To the best I can figure it, here's the relevant configuration: in web.xml: <filter> <filter-name>u...
Due to browser restrictions I need to use a proxy to make an openlayers map work. The OpenLayers.ProxyHost javascript object handles the generation of a URL like: http://webhost:8080/app/proxy/?url=http://WFS_server/options/... Some of the requests will be GET's and others will be POST's. I've written a Servlet Filter that will recie...
I'm working on an OSGi-based application that uses org.osgi.service.http.HttpService which does not support the use of Servlet Filters. Before I realised that I wouldn't be able to use Servlet Filters I was planning to apply a couple of existing Filters. These Filters set the appropriate HTTP headers to: prevent caching of responses c...
I would like to apply a filter to severl url endings. The next configuraiton seems to work. <filter> <filter-name>LanguageFilter</filter-name> <filter-class>filters.LanguageFilter</filter-class> </filter> <filter-mapping> <filter-name>LanguageFilter</filter-name> <url-pattern>*.do</url-pattern> </filter-mapping> <filter...
I am writing some servlets with plain old mostly-JDBC patterns. I realized that I have several objects that would like to share a single transaction, and I'd like to enforce that one HTTP transaction = one database transaction. I think I can do this via passing a Connection around in a ThreadLocal variable, and then having a servlet fil...
Hi, I have one Filter and few Handlers (GenericHandler), which work fine when configured per web application or web-service. I was just wondering if there is a way of configuring these at server level (at a common place) so that every web application or web service deployed in the server can have them implicitily configured so that I do...
I'm running a web application in JBoss AS 5. I also have a servlet filter which intercepts all the requests to the server. Now, I want to redirect the users to the login page, if the session has expired. I need to do this 'isSessionExpired()' check in the filter and need to redirect the user accordingly. How do I do it? Edit: I'm setti...
This question is related to my other question "How to redirect to Login page when Session is expired in Java web application?". Below is what I'm trying to do: I've a JSF web application running on JBoss AS 5 When the user is inactive for, say 15 minutes, I need to log out the user and redirect him to the login page, if he is trying to...
Is it possible to write a servlet filter to take inspect HTTP response codes? I want to write a filter that will non-destructively inspect outgoing HTTP response codes. But, there does not seem to be a getResponseCode() like method on the Response object. It is also not clear to me how unhandled exceptions from the servlet are supp...
Hi there, I want a Servlet to handle requests to files depending on prefix and extension, e.g. prefix_*.xml Since mapping on beginning AND end of request path is not possible, I have mapped all .xml requests to my Servlet. The question now is: how can I drop out of my servlet for XML files not starting with "prefix", so that the reques...
Good day, I am using CacheFilter to filter a certain path to my server (which outputs an image stream to the response stream). And I've configured it in my web.xml as follows: <filter> <filter-name>imagesCache</filter-name> <filter-class>com.samaxes.cachefilter.presentation.CacheFilter</filter-class> <init-param> <p...
Why aren't cookies able to be referenced from a servlet filter? It just seems beyond me that J2EE wouldn't allow you to sanitize cookie values: public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws ServletException, IOException { r...
Hi I have written 2 filters 1 for a normal user and 1 for a admin yet you have to be admin to login. Here is the source for both of my filters: public class newFilter implements Filter { String UUIDInDB; String UUIDInCookie; public void init(FilterConfig filterConfig) throws ServletException { //To change body of implemented metho...
Is there a way for a servlet filter to get a list of all servlets and their mappings? ...