JspException (Java EE 5)

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javax.servlet.jsp Class JspException

java.lang.Object
  java.lang.Throwable
      java.lang.Exception
          javax.servlet.jsp.JspException

All Implemented Interfaces:: Serializable

Direct Known Subclasses:: JspTagException, SkipPageException

public class JspException
extends Exception

Extends: Throwable > Exception

Extended by: JspTagException, SkipPageException

JSP 引擎已知的一般异常；未捕获的 JspException 将导致调用 errorpage 机制。

英文文档：

A generic exception known to the JSP engine; uncaught JspExceptions will result in an invocation of the errorpage machinery.

See Also:: Serialized Form

Constructor Summary
`JspException()` Construct a JspException.
`JspException(String msg)` Constructs a new JSP exception with the specified message.
`JspException(String message, Throwable cause)` Constructs a new `JspException` with the specified detail message and cause.
`JspException(Throwable cause)` Constructs a new `JspException` with the specified cause.

Method Summary
`Throwable`	`getRootCause()` Deprecated. As of JSP 2.1, replaced by `Throwable.getCause()`

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

public JspException()
构造 JspException。

英文文档：
JspException

public JspException()

Construct a JspException.

public JspException(String msg)
构造带指定消息的新 JSP 异常。该消息可以写入到服务器日志和/或向用户显示。

msg 指定异常消息文本的 `String`

英文文档：
JspException

public JspException(String msg)

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

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

public JspException(String message, Throwable rootCause)
当 JSP 需要抛出异常并且需要包含有关妨碍 JSP 正常操作的“根本原因”异常的消息时，构造一个新 JSP 异常，该异常包含一条描述消息。

message 包含异常消息文本的 `String`

rootCause 防碍 servlet 正常操作的 `Throwable` 异常，使此 servlet 异常成为必需的

英文文档：
JspException

public JspException(String message,
                    Throwable cause)

Constructs a new JspException with the specified detail message and cause. The cause is saved for later retrieval by the Throwable.getCause() and getRootCause() methods.

See Also:: Exception.Exception(String, Throwable)

public JspException(Throwable rootCause)
当 JSP 需要抛出异常并且需要包含有关妨碍 JSP 正常操作的“根本原因”异常的消息时，构造一个新 JSP 异常。该异常消息以底层异常的本地化消息为基础。
此方法调用 `Throwable` 异常的 `getLocalizedMessage` 方法获取本地化异常消息。在子类化 `JspException` 时，可重写此方法以创建设计用于特定语言环境的异常消息。

rootCause 防碍 JSP 正常操作的 `Throwable` 异常，使此 JSP 异常成为必需的

英文文档：
JspException

public JspException(Throwable cause)

Constructs a new JspException with the specified cause. The cause is saved for later retrieval by the Throwable.getCause() and getRootCause() methods.

See Also:: Exception.Exception(Throwable)

Method Detail

public Throwable getRootCause()
返回导致此 JSP 异常的异常。

return 导致此 JSP 异常的 `Throwable`

英文文档：
getRootCause

public Throwable getRootCause()

Deprecated. As of JSP 2.1, replaced by Throwable.getCause()

Returns the exception that caused this JSP exception.

Returns:: the Throwable that caused this JSP exception