ServletException (Servlet API Documentation)

Class ServletException

public class ServletException extends Exception

Defines a general exception a servlet can throw when it encounters difficulty.

Version: $Version$

Author: Various

Constructor Summary
	ServletException() Constructs a new servlet exception.
	ServletException(String message) Constructs a new servlet exception with the specified message.
	ServletException(String message, Throwable rootCause) Constructs a new servlet exception when the servlet needs to throw an exception and include a message about the "root cause" exception that interfered with its normal operation, including a description message.
	ServletException(Throwable rootCause) Constructs a new servlet exception when the servlet needs to throw an exception and include a message about the "root cause" exception that interfered with its normal operation.

Constructor Summary

ServletException()

Constructs a new servlet exception.

ServletException(String message)

Constructs a new servlet exception with the specified message.

ServletException(String message, Throwable rootCause)

Constructs a new servlet exception when the servlet needs to throw an exception and include a message about the "root cause" exception that interfered with its normal operation, including a description message.

ServletException(Throwable rootCause)

Constructs a new servlet exception when the servlet needs to throw an exception and include a message about the "root cause" exception that interfered with its normal operation.

Method Summary
Throwable	getRootCause() Returns the exception that caused this servlet exception.

Method Summary

Throwable

getRootCause()

Returns the exception that caused this servlet exception.

Constructor Detail

public ServletException()

Constructs a new servlet exception.

public ServletException(String message)

Constructs a new servlet exception with the specified message. The message can be written to the server log and/or displayed for the user.

Parameters: message a String specifying the text of the exception message

ServletException

public ServletException(String message, Throwable rootCause)

Parameters: message a String containing the text of the exception message rootCause the Throwable exception that interfered with the servlet's normal operation, making this servlet exception necessary

ServletException

public ServletException(Throwable rootCause)

Constructs a new servlet exception when the servlet needs to throw an exception and include a message about the "root cause" exception that interfered with its normal operation. The exception's message is based on the localized message of the underlying exception.

This method calls the getLocalizedMessage method on the Throwable exception to get a localized exception message. When subclassing ServletException, this method can be overridden to create an exception message designed for a specific locale.

Parameters: rootCause the Throwable exception that interfered with the servlet's normal operation, making the servlet exception necessary

Method Detail

getRootCause

Returns the exception that caused this servlet exception.

Returns: the Throwable that caused this servlet exception