servlets

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...

where to copy servlet files in apache tomcat server to work fine with web?

Can anyone guide me how to get Servlets working in Apache Tomcat server? I can run the Servlets from Netbeans without problems, but I don't know where to put the class files in Tomcat. ...

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...

ActiveMQ REST API URI?

I'm having trouble getting an example running using the REST API with ActiveMQ 5.4.0. I've seen several different GET URIs. The documentation refers to this URI: http://localhost:8161/demo/message/&#060;queue name>?type=queue Other sources refer to these URIs: http://localhost:8161/queue/&#060;queue name> http://localhost:8161/demo/...

Programatically determine virtual host in J2EE servlet?

I'm attempting to programatically locate the virtual hostname for a J2EE servlet container. In this enterprise environment, the logical URL consists of protocol://application.company.com/, which is translated to protocol://virtualhost.datacenter.company.com:port/context/. Using ServletRequest.getServerName() gives me "application.compa...

Calling Servlets from JSP

Hi, I am newbie to servlets and JSP. I am trying to call logger servlet from jsp. The requirement is such that the servlet returns control to the jsp(after logging events). The servlet needs to be transparent i.e. based on the performance the logging feature may be turned off. Is JSP:INCLUDE the only way to go? Are there other approach...

Interpreting request as JSP instead of through servlet

This should be relatively simple to do but I've yet to find a description of how to do it. My setup is a simple web app that processes every request through a servlet (I'll call it MyEverythingServlet for this question). Here's a slightly modified version of my web.xml: <servlet> <servlet-name>MyEverythingServlet</servlet-name> ...

Event like .net's "Application_Start" and "Begin_Request" for java/tomcat/JSP?

Is there a way to attach to events like asp.net's "Application_Start" and "Begin_Request" in Java/Tomcat/JSP web projects? I would really rather not use JSF or an extra framework(Spring, Struts). I do not want to do it on a per-page basis with anything like 'jspInit', a global event handler is the goal. In the event that I am stuck in t...

iphone social networking

I am trying to build an application which should send the data as an xml file to the server and other user's should be able to see the info uploaded by another user. Embedding everything in xml file is done but now the question is how to push this information to the other user's so that they can see it in a particular format. Also how i ...

How to prevent duplicate URL concatination after redirect?

Hi, I wrote a page login.jsp (tomcat6) which has login form (username, password etc). I've mapped the form action and servlet so the form submission results in invocation of login servlet. 1. login.jsp has form that invoke servlet. <form name="login_form" action="servlet/login" method="POST"> 2. servlet mapping in deployment descri...

How to handle Servlet program on submitting a JSP form.

JSP CODE: Upload File: <input name="file" type="file" id="file"><br><br> <input type="submit" name="Submit" value="Submit"/><br><br> <input type="reset" name="Reset" value="Reset"/> </form> I have the above JSP file which will be executed with the help of Tomcat server and this is stored in the following location of my syste...

What is session in java?

Hi, I far i understand Httpsession concepts in Java. HttpSession ses = req.getSession(true); will create a session object, according to the request. setAttribute("String", object); will, binds the 'String', and value with the Session object. getAttribute("String"); will return an object associated with the string, specified. ...

How to make a nice jsp GUI without using HTML tags?

I'm new to servlets and JSP and I'm trying to discover forms, and how to make my own web form. I know HTML but and I see examples for using HTML tags in the servlets, but isn't there a more higher level way to just say "Make a form here, make a table there" without getting my hands dirty with HTML tags? I want to build a war file and d...

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...

Modifying BIRT Web Report Viewer app - replace Parameters dialog with slide down section on top

Hi, Is it possible to modify the default BIRT Report Viewer web application so that all the dialogs are replaced by slide downs esp. for parameters. Has anyone already done something similar. TIA ...

Start an applet from a servlet...

I have been searching on how to start an applet from a servlet. Everything on the web so far has been on the opposite, connecting to a servlet from an applet. I am writing a gwt/j2ee app and need to post data to a servlet, then have the servlet start an applet and pass serialized objects to the applet. The applet would then send data bac...

Servlets encodeRedirectURL

I'm trying to get an OAuth implementation running on a servlet for Twitter. I'm having trouble with redirecting the user to the Twitter authentication page. When I get the callback, it's returned to a servlet but the session is different since the request comes from Twitter and not my webapp. I tried using encodeRedirectURL to get the...

Request Param ordering

Possible Duplicate: Ordering of values in HttpServletRequest.getParameterValues() We have J2EE based web application. On server side, we want to get parameters in exactly same order in which sent by client browser. We tried request.getParameterMap() and request.getParameterNames() but these methods does not returns parameters ...

Should I create a Model & DAO for this in my Java web application?

I have the following action servlet and was wondering if I should create a model called supervisor and a corresponing supervisorDAO as I did for program? The programDAO puts multiple program model beans into the returned arraylist. For supervisors, I am using a general input/output database utility to get an arraylist of hashmaps (retA...

How can you tell if the user hit cancel during a download from a Java servlet?

How can you tell if the user hit cancel during a download from a Java servlet? What seem to happen for me with IE, the output stream println() blocks. The used hit cancel, but is there a way to time this out or anything like that? ...