Greetings,
I'm a newbie to jsp/java so apologies if this request seems trivial.
I have two forms (separate .jsps) which are used to manipulate database records, one adds a record the others update an existing record.
As all fields on the HTML form are text I need to ensure those fields that should be integer values are validated, therefore I include an errorpage (The form action is used to call .jsps needed for the database actions) which acts as a form handler:-
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<%@ page errorPage="EditExceptionHandler.jsp" %>
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on both the add and edit record .jsps (changing the errorpage accordingly)
Which checks to ensure the sequence field really is an integer, the code for the EditExceptionHandler.jsp is below:-
- <%@ page errorPage="ExceptionHandler.jsp" %>
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<html>
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<%-- Form Handler Code --%>
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<a href="wk465682EditFAQ.jsp"> Please try again </a>
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<%
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int faqSequence;
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try{
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faqSequence = Integer.parseInt(request.getParameter("faqSequence"));
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}
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catch (NumberFormatException e)
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{
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throw new JspException("Please enter a valid integer value !!");
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}
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%>
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</html>
The code for the ExceptionHandler.jsp is as follows:-
- <%@ page isErrorPage="true" import="java.io.*" %>
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<html>
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<head>
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<title>Exceptional Event Occurred!</title>
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<style>
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body, p { font-family:Tahoma; font-size:10pt;
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padding-left:30; }
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pre { font-size:8pt; }
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</style>
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</head>
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<body>
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<%-- Exception Handler --%>
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<font color="red">
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<%= exception.toString() %><br>
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</font>
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<%
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out.println("<!--");
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StringWriter sw = new StringWriter();
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PrintWriter pw = new PrintWriter(sw);
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exception.printStackTrace(pw);
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out.print(sw);
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sw.close();
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pw.close();
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out.println("-->");
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%>
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</body>
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</html>
As I have two transactions that require validation for the exact same error how can I combine the functionality?
At the moment when the error is displayed the anchor tag and href isn’t visible (though it is when I add the code to the ExceptionHandler.jsp), I assumed even though it passes the new Exception on it would still display the link.
Then the other issue I have is how can I specify if the error is from XXX.jsp (add or edit .jsp) then return to the same XXX.jsp if I only use one .jsp error handler?
Hope this makes sense.
Thanks
Rob
