jspexception.java

梅花雪树的经典制作

/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements.  See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License.  You may obtain a copy of the License at
*
*     http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package javax.servlet.jsp;

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

public class JspException extends Exception {

    /**
     * Construct a JspException.
     */
    public JspException() {
    }


    /**
     * Constructs a new JSP exception with the
     * specified message. The message can be written 
     * to the server log and/or displayed for the user. 
     *
     * @param msg   a <code>String</code> specifying the text of the exception
     *              message
     */
    public JspException(String msg) {
        super(msg);
    }


    /**
     * Constructs a new <code>JSPException</code> with the specified detail
     * message and cause. The cause is saved for later retrieval by the
     * <code>java.lang.Throwable.getCause()</code> and {@link #getRootCause()}
     * methods.
     * 
     * @see <code>java.lang.Exception.Exception(String, Throwable)</code>
     *
     * @param message       a <code>String</code> containing the text of the
     *                      exception message
     *
     * @param cause         the <code>Throwable</code> exception that
     *                      interfered with the JSP's normal operation,
     *                      making this JSP exception necessary
     */
    
    public JspException(String message, Throwable cause) {
        super(message, cause);
    }


    /**
     * Constructs a new <code>JSPException</code> with the specified cause.
     * The cause is saved for later retrieval by the
     * <code>java.lang.Throwable.getCause()</code> and {@link #getRootCause()}
     * methods.
     * 
     * @see <code>java.lang.Exception.Exception(Throwable)</code>
     *
     * @param cause         the <code>Throwable</code> exception that
     *                      interfered with the JSP's normal operation, making
     *                      the JSP exception necessary
     */

    public JspException(Throwable cause) {
        super(cause);
    }

    
    /**
     * @deprecated As of JSP 2.1, replaced by
     * <code>java.lang.Throwable.getCause()</code>
     *  
     * Returns the exception that caused this JSP exception.
     *
     * @return  the <code>Throwable</code> that caused this JSP exception
     */
    
    public Throwable getRootCause() {
        return getCause();
    }
}