Error Page Template Jsp
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Custom Error Page Jsp
(88)Search (12)Servlets (20)Struts (1)Text (19)Tomcat (8)Version Control (8)Windows (2)XML (1) How do I create a JSP error page to jsp error page print stack trace handle particular error codes? Author: Deron Eriksson Description: This Java tutorial describes how to create a JSP to handle particular error codes. Tutorial created using: Windows XP || JDK 1.5.0_09 jsp error page example || Eclipse Web Tools Platform 2.0 (Eclipse 3.3.0) || Tomcat 5.5.20 Page: 1 2> When a particular error code occurs in the context of your JavaSW web application, such as a 404 (Not Found) or 500 (Internal Server Error), it is possible to send the user to an error page. The error code and the page location where the user should
Jsp Iserrorpage
be sent in the event of that error can be specified in an error-page section in web.xmlW. Below, we see that when a 404 error occurs, the user is to be redirected to the error-404.jsp. Section of web.xml
ContentHandling JSP Page Errors Any number of exceptions web.xml error-page example can arise when a JSP page is executed. To specify web.xml error-page exception-type that the web container should forward control to an error page if an exception
Web.xml Error-page Location
occurs, include the following page directive at the beginning of your JSP page: <%@ page errorPage="file-name" %> The Duke’s Bookstore application page tut-install/javaeetutorial5/examples/web/bookstore2/web/template/preludeErrorPage.jspf contains http://www.avajava.com/tutorials/lessons/how-do-i-create-a-jsp-error-page-to-handle-particular-error-codes.html the directive: <%@ page errorPage="errorpage.jsp"%> The following page directive at the beginning of tut-install/javaeetutorial5/examples/web/bookstore2/web/error/errorpage.jsp indicates that it is serving as an error page: <%@ page isErrorPage="true" %> This directive makes an object of type javax.servlet.jsp.ErrorData available to the error page so that you can retrieve, interpret, and possibly display https://docs.oracle.com/cd/E19575-01/819-3669/bnahi/index.html information about the cause of the exception in the error page. You access the error data object in an EL (see Unified Expression Language) expression by way of the page context. Thus, ${pageContext.errorData.statusCode} retrieves the status code, and ${pageContext.errorData.throwable} retrieves the exception. You can retrieve the cause of the exception using this expression: ${pageContext.errorData.throwable.cause} For example, the error page for Duke’s Bookstore is as follows: <%@ page isErrorPage="true" %> <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %> <%@ taglib uri="http://java.sun.com/jsp/jstl/fmt" prefix="fmt" %>
: ${pageContext.errorData.throwable.cause} Note – You can also define error pages for the WAR that contains a JSP page. If error pages are defined for both the WAR and a JSP page, the JSP page’s error page takes precedence. Previous: BufferingNext: Creating Static Content © 2010, Oracle Corporation and/or its affiliates
QuestionsJava Interview QuestionsJDBC Interview QuestionsServlet Interview QuestionsJSP Interview QuestionsStruts2 Interview QuestionsSpring Interview QuestionsHibernate Interview QuestionsJSF Interview QuestionsResourcesStoreHome » Java » Java EE » JSP Exception Handling - JSP http://www.journaldev.com/2049/jsp-exception-handling-jsp-error-page Error PageJSP Exception Handling - JSP Error PageSeptember 11, 2016 by Pankaj 3 Comments Exception handling in JSP is done by JSP exception pages.Exception https://spring.io/blog/2013/11/01/exception-handling-in-spring-mvc Handling in JSPSometime back I wrote a post about Servlet Exception Handling and why do we need it. Same explanation is also applicable for JSP error page pages also and that's why Java EE provides a clear approach for exception handling in JSP using JSP error pages.To handle exceptions thrown by the JSP page, all we need is an error page and define the error page in JSP using jsp page directive.JSP Error PageTo create a JSP jsp error page error page, we need to set page directive attribute isErrorPage value to true, then we can access exception jsp implicit object in the JSP and use it to send customized error message to the client.JSP Error Page ConfigurationWe need to set page directive errorPage attribute to define the JSP that will handle any exception thrown by the JSP service method. When JSP Error page is translated to servlet code, it extends org.apache.jasper.runtime.HttpJspBase in Tomcat.Error Page Deployment Descriptor ConfigurationMost of the times, we have a common error page that we want to use for all the JSPs, so rather than configuring it in all the JSPs individually, we can define error page in web.xml with error-page element. We can configure JSP error page to handle other error codes like 404 also.Let's see how all these fit together in a web application.We will create a simple web application JSPExceptionHan
exception handling but, when teaching Spring MVC, I often find that my students are confused or not comfortable with them. Today I’m going to show you the various options available. Our goal is to not handle exceptions explicitly in Controller methods where possible. They are a cross-cutting concern better handled separately in dedicated code. There are three options: per exception, per controller or globally. A demonstration application that shows the points discussed here can be found athttp://github.com/paulc4/mvc-exceptions. See Sample Application below for details. NOTE: The demo applications has been revamped and updated (October 2014) to use Spring Boot 1.1.8 and is (hopefully) easier to use and understand.Using HTTP Status Codes Normally any unhandled exception thrown when processing a web-request causes the server to return an HTTP 500 response. However, any exception that you write yourself can be annotated with the @ResponseStatus annotation (which supports all the HTTP status codes defined by the HTTP specification). When an annotated exception is thrown from a controller method, and not handled elsewhere, it will automatically cause the appropriate HTTP response to be returned with the specified status-code. For example, here is an exception for a missing order. @ResponseStatus(value=HttpStatus.NOT_FOUND, reason="No such Order") // 404 public class OrderNotFoundException extends RuntimeException { // ... } And here is a controller method using it: @RequestMapping(value="/orders/{id}", method=GET) public String showOrder(@PathVariable("id") long id, Model model) { Order order = orderRepository.findOrderById(id); if (order == null) throw new OrderNotFoundException(id); model.addAttribute(order); return "orderDetail"; } A familiar HTTP 404 response will be returned if the URL handled by this method includes an unknown order id.Controller Based Exception HandlingUsing @ExceptionHandler You can add extra (@ExceptionHandler) methods to any controller to specifically handle exceptions thrown by request handling (@RequestMapping) methods in the same controller. Such methods can: Handle exceptions without the @ResponseStatus annotation (typically predefined exceptions that you didn’t write) Redirect the user to a dedicated error view Build a totally custom error response The following controller demonstrates these three options: @Controller