Home > servlet filter > servlet filter redirect to error page

Servlet Filter Redirect To Error Page

here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About

Java Filter Redirect To Another Page

Us Learn more about Stack Overflow the company Business Learn more about hiring servlet filter redirect example developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join servlet filter redirect to login page the Stack Overflow Community Stack Overflow is a community of 6.3 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up How servlet filter will dispatch

Servlet Filter Forward

error message on request page? up vote 3 down vote favorite I have written a servlet filter which is configured to be invoked for each url (/*). On the basis of some condition, if the condition is passed, I want to proceed normal execution by chain.doFilter(request,response), I also want to open same request URL with error message.. "say value entered in particular textbox is incorrect". Is

Java Filter Example

this possible? Do I have to use response.sendRedirect(request.getURL())? I hope I wont end up in infinite loop as I have configured filter on each URL. I am doing validation check on request parameter. java servlets servlet-filters share|improve this question edited Dec 3 '12 at 12:57 BalusC 686k21024882705 asked Dec 3 '12 at 12:37 Rajesh 1,33572254 1 I wouldn't do validation in a Filter, especially one mapped to /* I'd try and be a bit more targetted. –Qwerky Dec 3 '12 at 12:49 ok..there are some validation which needs to be done for each request..so that why i am trying with filter –Rajesh Dec 3 '12 at 12:51 add a comment| 1 Answer 1 active oldest votes up vote 4 down vote accepted Just do the same as you'd do in a servlet: perform a forward. request.getRequestDispatcher("/WEB-INF/some.jsp").forward(request, response); A filter is by default not (re)invoked on a forward. Additional advantage is that the JSP reuses the same request and thus you can just set the validation error messages as a request attribute without the need for session or cookie based workarounds/hacks. Unrelated to the concrete problem, this isn't entirely the right approach. Form-specific

here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About cannot call sendredirect() after the response has been committed Us Learn more about Stack Overflow the company Business Learn more about hiring

Cannot Create A Session After The Response Has Been Committed

developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the httpservletresponse Stack Overflow Community Stack Overflow is a community of 6.3 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Redirection from Servlet/Filter does not work http://stackoverflow.com/questions/13683431/how-servlet-filter-will-dispatch-error-message-on-request-page up vote 1 down vote favorite I have a problem with redirection - it simply does not work for valid paths. Right now I use page forwarding in the Servlet, but I need redirection in a filter. All the pages reside in the 'pages' folder and have a .jspx extension I've tried the following (this path works with forwarding): httpResponse.sendRedirect("/pages/login.jspx"); browser url is http://[localhost]/pages/login.jspx, and it http://stackoverflow.com/questions/10917242/redirection-from-servlet-filter-does-not-work shows Tomcat's 404 page, the context path (in my case it's '/hotel') is missing from the url, so, if I add it: httpResponse.sendRedirect("/hotel/pages/login.jspx"); redirect does not happen, browser url does not change, and I'm shown the browser's 404 page (This program cannot display the webpage). What am I doing wrong? The filter which is used to test this has the following mapping: @WebFilter(filterName = "SecurityFilter", urlPatterns = "/*") java servlets servlet-filters share|improve this question edited Jun 30 '13 at 15:11 Yotam Omer 11.4k93554 asked Jun 6 '12 at 15:21 Shajirr 7729 add a comment| 2 Answers 2 active oldest votes up vote 2 down vote accepted The redirected URL is indeed relative to the initially requested URL. To dynamically prepend the context path it's recommended to use HttpServletRequest#getContextPath() instead of hardcoding it, because the context path value can be changed externally by server-specific configuration. As to your concrete problem, I'm not sure if I understand "browser's 404 page" properly, perhaps you mean the browser-default error page which can occur when the server is unreachable or when the request has been redirected in an infinite loop (that should however have been made clear in the actual message o

Mobile Media API Other Certification Server-Side Java Web Services & Cloud Downloads Learn Forums Newsletter Close Home / Articles http://www.jguru.com/article/server-side/redirecting-a-request.html / Server Side Writing Servlet Filters | Redirecting a Request Created https://www-10.lotus.com/ldd/portalwiki.nsf/dx/custom-error-pages- Nov 11, 2011 Tweet Redirecting a request Another use for filters is to restrict access to resources - if a filter doesn't call FilterChain.doFilter(), the resource won't be loaded. Simply returning would send an empty document to the browser, so it's better to redirect servlet filter or forward the request to a different resource. As with a servlet, there are two ways to do this. HttpServletReponse.sendRedirect() actually sends a response to the browser giving it a URL to fetch instead of the original one, which may be on a different server. The other option is to use a RequestDispatcher to load a servlet filter redirect different resource on the server instead of the resource which would have been loaded, transparently to the browser. Unfortunately the Tomcat project doesn't provide any useful examples for this, so I'm reduced to writing my own code. SecureFilter checks the current session to see whether there is a User object; if not, it forwards the request to a login form. While hardly a robust component, you can see how a more useful system could be implemented. public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException { boolean authorized = false; if (request instanceof HttpServletRequest) { HttpSession session = ((HttpServletRequest)request).getSession(false); if (session != null) { User user = (User) session.getAttribute("user"); if (user != null) authorized = true; } } if (authorized) { chain.doFilter(request, response); return; } else if (filterConfig != null) { String login_page = filterConfig.getInitParameter("login_page"); if (login_page != null && !"".equals(login_page)) { filterConfig.getServletContext().getRequestDispatcher(login_page). forward(request, response); return; } } throw new ServletException ("Unauthorized access, unable to forward to login page"); } Threading issues As

Related content

servlet filter error
Servlet Filter Error p container calls a method in a servlet on behalf of the client the HTTP request that the client sent is by default passed directly to the servlet servlet filter dispatcher The response that the servlet generates is by default passed directly back servlet filter example to the client with its content unmodified by the container Alternatively you can use servlet filters to preprocess Web p Httpservletresponse p application requests and postprocess server responses Filters were introduced in When to Use Filters for Pre-Processing and Post-Processing and are described in the following sections Overview of How Filters

web xml filter mapping dispatcher error
Web Xml Filter Mapping Dispatcher Error p in a servlet on behalf of the client the HTTP request that the client sent is by default passed directly to the servlet The response that the servlet generates is by default passed directly back to the servlet filter dispatcher client with its content unmodified by the container Alternatively you can use servlet filters dofilter method in servlet example to preprocess Web application requests and postprocess server responses Filters were introduced in When to Use Filters for Pre-Processing and Post-Processing and p Servlet Filter Chain Order p are described in the following sections

wwigo filter initialization error
Wwigo Filter Initialization Error p Storage How to use a mobile phone as a webcam with wwigo - HD video tutorial de Cristi Comments In this video tutorial Luci recur with a very interesting tutorial that it is using a mobile phone as a webcam May we not be like p Servlet Filter Example p this webcam broke must have an alternative this alternative is the use of mobile phone java filter stream webcam instead it is an idea that many of us have thought at least once but I found the answer and then I p Servlet Filter Annotation