Creating Custom Exception Handlers in Struts.-2

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Exception Handlers in Struts Example Continued ......

(3) Creating the Action Class

The Action class is same as we have learned just with a small change. We are throwing an error from the Action Class. so the code for the execute method is as follows:-

public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response)throws Exception {
if(true){

                // Throwing exception to call the Exception Handler
        throw new RuntimeException("No Action");
                }
        return mapping.getInputForward();
        }

(4) JSP Page:- index.jsp

Note :- The below jsp will only call the Exception.do and then exception handler will pass the control again to this page.

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
<form action="exception.do">
<input type="submit" value="Click">
</form>
</body>
</html>

(5) Output:-

The program will print Exception Handler for the specific error in the console window which shows that the CustomExceptionHandler is called before redirecting to the specific page.