spring PlaceholdersResolver 源码
springboot PlaceholdersResolver 代码
文件路径：/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/context/properties/bind/PlaceholdersResolver.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.context.properties.bind;
import org.springframework.core.env.PropertyResolver;
/**
* Optional strategy that used by a {@link Binder} to resolve property placeholders.
*
* @author Phillip Webb
* @author Madhura Bhave
* @since 2.0.0
* @see PropertySourcesPlaceholdersResolver
*/
@FunctionalInterface
public interface PlaceholdersResolver {
/**
* No-op {@link PropertyResolver}.
*/
PlaceholdersResolver NONE = (value) -> value;
/**
* Called to resolve any placeholders in the given value.
* @param value the source value
* @return a value with placeholders resolved
*/
Object resolvePlaceholders(Object value);
}
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- 本文标签： Spring Boot Java Spring
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