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Class
JavaTM 2 Platform
Ent. Ed. v1.4
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javax.servlet
Class ServletException
All Implemented Interfaces: Serializable Direct Known Subclasses: UnavailableException public class ServletException extends Exception
Defines a general exception a servlet can throw when it encounters difficulty. 定义一个通用异常，servlet遭遇麻烦时抛出。
Version: $Version$ Author: Various See Also: Serialized Form
Constructor Summary
Constructs a new servlet exception. 构建一个新的servlet异常。
ServletException(String message)
Constructs a new servlet exception with the specified message. 构建一个指定信息的新的servlet异常。
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. 构建一个新的servlet异常，servlet需要时抛出，包含妨碍正常操作（包括描述信息）的根异常信息。
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. 构建一个新的servlet异常，servlet需要时抛出，包含妨碍正常操作的根异常信息。
Method Summary
Returns the exception that caused this servlet exception. 返回引起servlet异常的异常。
Methods inherited from class java.lang.Throwable
fillInStackTrace, getCause, getLocalizedMessage, getMessage, getStackTrace, initCause, printStackTrace, printStackTrace, printStackTrace, )]setStackTrace, toString
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
Constructor Detail
ServletException
public ServletException()
Constructs a new servlet exception. 构建一个新的servlet异常。
ServletException
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. 构建一个指定信息的新的servlet异常。该信息可以输出给 server日志或者显示给用户。
Parameters: message - a String specifying the text of the exception message 指定异常信息文本的String
ServletException
public 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. 构建一个新的servlet异常，servlet需要时抛出，包含妨碍正常操作（包括描述信息）的根异常信息。
Parameters: message - a String containing the text of the exception message 包含异常信息文本的String rootCause - the Throwable exception that interfered with the servlet's normal operation, making this servlet exception necessary 妨碍servlet正常操作的Throwable异常，必要时构建servlet异常
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. 构建一个新的servlet异常，servlet需要时抛出，包含妨碍正常操作的根异常信息。该异常信息基于底层异常的本地化信息。
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. 该方法调用Throwable异常的getLocalizedMessage方法来获取本地化异常信息。 当子类化ServletException时，可以重写该方法来创建专为本地化设计的异常信息。
Parameters: rootCause - the Throwable exception that interfered with the servlet's normal operation, making the servlet exception necessary 妨碍servlet正常操作的Throwable异常，必要时构建servlet异常
Method Detail
getRootCause
public Throwable getRootCause()
Returns the exception that caused this servlet exception. 返回引起servlet异常的异常。
Returns: the Throwable that caused this servlet exception 引起servlet异常的Throwable[/url]
[url=file:///F:/资料/文字资料/j2ee-1.4_doc/apidocs/overview-summary.html]Overview
Class
JavaTM 2 Platform
Ent. Ed. v1.4
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Copyright 2003 Sun Microsystems, Inc. All rights reserved.