handle « Exception « JSP-Servlet Q&A

1. Math.sqrt(-5) -> Force Exception in JSP?    stackoverflow.com

I've 3 .jsp files. index.jsp and sqrtcalculator.jsp and error.jsp. In index.jsp there's a text field and a button. In sqrtcalculator.jps there's the, well, calculator. Now, when I leave the field empty and press ...

2. Exception Handling in Jsp    stackoverflow.com

How will you handle the exception without sending to error page? How will you set a message detail to the exception object?(Not using any JSTL Tags) Thanks, Ravi

3. Servlet/JSP Flow Control: Enums, Exceptions, or Something Else?    stackoverflow.com

I recently inherited an application developed with bare servlets and JSPs (i.e.: no frameworks). I've been tasked with cleaning up the error-handling workflow. Currently, each <form> in the workflow submits to ...

4. How to handle exceptions from an image-generating Servlet?    stackoverflow.com

I have a simple (Servlet, JSP, and JSTL) web app whose main functionality is displaying images retrieved from a back-end server. The controller servlet forwards the user to a JSP that ...

5. JSP Exception Handling    stackoverflow.com

I have 2 simple JSP to check navigation to error page on occurrence of exceptions: calculation_page.jsp -having the tag - <%@ page errorPage="error_page.jsp"%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"

<%-- include custom error ...

6. How to handle exceptions in Java Web Applications?    stackoverflow.com

i would like to handle my exceptions in a way to warning the user about the errors that occured . What i know is something like:

private void registerUser(...){

7. How to Properly Handle Exceptions in a JSP/Servlet App?    stackoverflow.com

How do you properly handle errors encountered in a servlet? Right now, the app that I inherited (uses only plain JSP/Servlet) has a superclass called Controller which extends HttpServlet and which ...

8. Exception handling question    coderanch.com

Hi, I want to use a generic error handling page "Error.jsp" to handle all my exceptions occured from the servlet program. The code looks like this: <%@page isErrorPage="true" %> Error Message Page

Error Message Page

The Error: <%= exception.getMessage() %> <% exception.printStackTrace(); %>

Each time, there occurs any exception in my servlet code, in the catch ...

9. Exception Handling    coderanch.com

10. servlet/jsp exception handling question    coderanch.com

In "MyServlet.java" it invokes some classes which throws out some special exceptions that can be caught in "MyServlet.java". Then some customized exception (subclass of ServletException) is thrown from "Myservlet.java"'s doGet() and doPost() method. Eventually "MyServlet.java" does "forward(req, res)" to send results to "My.jsp" page, I try to catch ALL the exception in "My.jsp" using "errorpage = ..". But, it seems once ...

11. Exception Handling in JSP    coderanch.com

13. Exception handling    coderanch.com

try this out. - ABC Application ABC Application for XYZ stuff - com.common.LogoutTracker - AppController com.servlet.AppAdminServlet - FileUploader com.servlet.UploadFileServlet - AppController /AppController - FileUploader /FileUploader - 20 - index.jsp - 404 /common/error.jsp - java.lang.IOException /common/ioExcep.jsp

14. Exception Handling    coderanch.com

1- Its better to implement MVC2 Architecture anyway. 2- You can configure you error pages in deployment descriptor. It depends what make you feel better one error page or multiple error page. I would suggest you can have one error page per error type. Or you can also have only one error page for all by ust changing the error messages. ...

15. Exception Handling    coderanch.com

How can we handle exception in JSP? Here is one of the senario.. I have one 'test.jsp'. In that jsp I'm including another jsp('header.jsp') using <% include file ="" %>. In test.jsp ... there is a code for forwording the error to error.jsp i.e <%@ page errorPage="error.jsp"%>. Now I'm forcefully throwing the exception in 'header'jsp. I want that a custom error ...

16. How to handle exception in jsp    coderanch.com

17. handling exceptions in jsp    coderanch.com

18. Exception handling    coderanch.com

Please help me understand ... this article http://www.stardeveloper.com/articles/display.html?article=2001072401&page=1 says I can indicate a jsp to display upon exception, but there is also a setting in web.xml which (supposedly) lets you declare a page to go to whenever a particualr type of exception happens. Now my preference would be to throw my own custom exception objects in jsps and let the declaration ...

20. exception handling in jsps    coderanch.com

I've used it for when something unexpected happens with a custom tag and it's better than a broken jsp. <%--TODO: Not sure why this is causing problems...--%> It's kind ...

21. exception handling in jsp    coderanch.com

22. Handling Exceptions in JSPs    coderanch.com

I'm investigating how to impliment error handling in some JSP's we're writing and I just wanted to check something. Would I be correct in thinking that if a JSP in included in another JSP, and the included JSP throws a runtime exception that exception will be passed up to the JSP that included it? if this is the case and the ...

23. servlet/jsp exception handling question    coderanch.com

24. handle exception in servlet    coderanch.com

26. Exception handling in Servlet    coderanch.com

28. handling servlet exception gracefully    coderanch.com

29. How to handle Servlet Exception Correctly    coderanch.com

Hi, I am currently building a sample we site using spring, but I have decided to post it here in Servlet since I think this is still servlet specific question. Kindly look at my code. It just basically stream files into the response object so that the user can download it. protected ModelAndView handleRequestInternal(HttpServletRequest request, HttpServletResponse response) throws Exception { // ...

30. Exception Handling in Servlets    coderanch.com

You can declare a ServletException in your web.xml but if you want to differentiate between various business exceptions you have to put the business exception type in your web.xml. That way you can define an error page per exception-type. This is what the servlet specification 2.4 says about it: SRV.9.9.2 Error Pages The Web application may have declared error pages using ...

31. exception handling in jsp    coderanch.com

32. How does JSP handle exceptions?    coderanch.com

33. Handling exceptions in jsp    forums.oracle.com

One point and one comment Point: Your error page needn't be another jsp. You can just as well declare a static HTML page as the attribute to errorPage. Comment: If you use a static page, I don't believe you can capture information about the exception thrown as you can in a jsp [via error.getMessage()].

34. Problem with Handling Exception in Jsp    forums.oracle.com