spring ConditionalOnWebApplication 源码
springboot ConditionalOnWebApplication 代码
文件路径：/spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/condition/ConditionalOnWebApplication.java
/*
* Copyright 2012-2019 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.boot.autoconfigure.condition;
import java.lang.annotation.Documented;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
import org.springframework.context.annotation.Conditional;
/**
* {@link Conditional @Conditional} that matches when the application is a web
* application. By default, any web application will match but it can be narrowed using
* the {@link #type()} attribute.
*
* @author Dave Syer
* @author Stephane Nicoll
* @since 1.0.0
*/
@Target({ ElementType.TYPE, ElementType.METHOD })
@Retention(RetentionPolicy.RUNTIME)
@Documented
@Conditional(OnWebApplicationCondition.class)
public @interface ConditionalOnWebApplication {
/**
* The required type of the web application.
* @return the required web application type
*/
Type type() default Type.ANY;
/**
* Available application types.
*/
enum Type {
/**
* Any web application will match.
*/
ANY,
/**
* Only servlet-based web application will match.
*/
SERVLET,
/**
* Only reactive-based web application will match.
*/
REACTIVE
}
}
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- 本文标签： Java Spring Spring Boot
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