spring HttpSessionRequiredException 源码
spring HttpSessionRequiredException 代码
文件路径：/spring-web/src/main/java/org/springframework/web/HttpSessionRequiredException.java
/*
* 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 jakarta.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
*/
@SuppressWarnings("serial")
public class HttpSessionRequiredException extends ServletException {
@Nullable
private final String expectedAttribute;
/**
* Create a new HttpSessionRequiredException.
* @param msg the detail message
*/
public HttpSessionRequiredException(String msg) {
super(msg);
this.expectedAttribute = null;
}
/**
* 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
*/
@Nullable
public String getExpectedAttribute() {
return this.expectedAttribute;
}
}
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