How do you Restrict Page Errors Display in the JSP Page

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You first set “Errorpage” attribute of PAGE directory to the name of the error page (ie Errorpage=”error.jsp”)in your jsp page .Then in the error jsp page set “isErrorpage=TRUE”. When an error occur in your jsp page it will automatically call the error page.

In Advanced Java, specifically in JSP (JavaServer Pages), you can control the display of page errors by using the errorPage and isErrorPage attributes in the <%@ page %> directive.

Here’s how you can achieve it:

  1. Define an error page: Create a separate JSP page that will be displayed when an error occurs. This page should handle the error and provide a user-friendly message. For example, create a page named errorPage.jsp.
    jsp
    <!-- errorPage.jsp -->
    <html>
    <head>
    <title>Error Page</title>
    </head>
    <body>
    <h2>An error occurred. Please contact the administrator.</h2>
    </body>
    </html>
  2. Specify the error page in the JSP page: In your main JSP page, use the errorPage attribute in the <%@ page %> directive to specify the error page. Additionally, you can use the isErrorPage attribute to determine whether the current page is an error page.
    jsp
    <!-- Your main JSP page -->
    <%@ page errorPage="errorPage.jsp" %>
    <html>
    <head>
    <title>Main Page</title>
    </head>
    <body>
    <!-- Your JSP content goes here -->
    </body>
    </html>

    With this setup, if an unhandled exception occurs in your main JSP page, the control will be transferred to the specified error page (errorPage.jsp), and that page will be displayed to the user.

  3. Optional: Handle exceptions in your error page (errorPage.jsp): In your error page (errorPage.jsp), you can use the page directive to import the exception information and handle it as needed.
    jsp
    <!-- errorPage.jsp -->
    <%@ page isErrorPage="true" %>
    <html>
    <head>
    <title>Error Page</title>
    </head>
    <body>
    <h2>An error occurred: <%= exception.getMessage() %></h2>
    <!-- Additional error handling or logging can be added here -->
    </body>
    </html>

By following these steps, you can control how errors are displayed in your JSP pages and provide a more user-friendly experience.