/*
 * Copyright 2002-2018 the original author or authors.
 *
 * Licensed 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
 *
 *      https://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 org.springframework.web;

import javax.servlet.ServletException;

import org.springframework.lang.Nullable;

Exception thrown when an HTTP request handler requires a pre-existing session.
Author:Juergen Hoeller
Since:2.0
/** * Exception thrown when an HTTP request handler requires a pre-existing session. * * @author Juergen Hoeller * @since 2.0 */
@SuppressWarnings("serial") public class HttpSessionRequiredException extends ServletException { @Nullable private final String expectedAttribute;
Create a new HttpSessionRequiredException.
Params:
  • msg – the detail message
/** * Create a new HttpSessionRequiredException. * @param msg the detail message */
public HttpSessionRequiredException(String msg) { super(msg); this.expectedAttribute = null; }
Create a new HttpSessionRequiredException.
Params:
  • msg – the detail message
  • expectedAttribute – the name of the expected session attribute
Since:4.3
/** * Create a new HttpSessionRequiredException. * @param msg the detail message * @param expectedAttribute the name of the expected session attribute * @since 4.3 */
public HttpSessionRequiredException(String msg, String expectedAttribute) { super(msg); this.expectedAttribute = expectedAttribute; }
Return the name of the expected session attribute, if any.
Since:4.3
/** * Return the name of the expected session attribute, if any. * @since 4.3 */
@Nullable public String getExpectedAttribute() { return this.expectedAttribute; } }