spring ConfigurationProperties 源码
springboot ConfigurationProperties 代码
文件路径:/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/context/properties/ConfigurationProperties.java
/*
* Copyright 2012-2021 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;
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.core.annotation.AliasFor;
import org.springframework.stereotype.Indexed;
/**
* Annotation for externalized configuration. Add this to a class definition or a
* {@code @Bean} method in a {@code @Configuration} class if you want to bind and validate
* some external Properties (e.g. from a .properties file).
* <p>
* Binding is either performed by calling setters on the annotated class or, if
* {@link ConstructorBinding @ConstructorBinding} is in use, by binding to the constructor
* parameters.
* <p>
* Note that contrary to {@code @Value}, SpEL expressions are not evaluated since property
* values are externalized.
*
* @author Dave Syer
* @since 1.0.0
* @see ConfigurationPropertiesScan
* @see ConstructorBinding
* @see ConfigurationPropertiesBindingPostProcessor
* @see EnableConfigurationProperties
*/
@Target({ ElementType.TYPE, ElementType.METHOD })
@Retention(RetentionPolicy.RUNTIME)
@Documented
@Indexed
public @interface ConfigurationProperties {
/**
* The prefix of the properties that are valid to bind to this object. Synonym for
* {@link #prefix()}. A valid prefix is defined by one or more words separated with
* dots (e.g. {@code "acme.system.feature"}).
* @return the prefix of the properties to bind
*/
@AliasFor("prefix")
String value() default "";
/**
* The prefix of the properties that are valid to bind to this object. Synonym for
* {@link #value()}. A valid prefix is defined by one or more words separated with
* dots (e.g. {@code "acme.system.feature"}).
* @return the prefix of the properties to bind
*/
@AliasFor("value")
String prefix() default "";
/**
* Flag to indicate that when binding to this object invalid fields should be ignored.
* Invalid means invalid according to the binder that is used, and usually this means
* fields of the wrong type (or that cannot be coerced into the correct type).
* @return the flag value (default false)
*/
boolean ignoreInvalidFields() default false;
/**
* Flag to indicate that when binding to this object unknown fields should be ignored.
* An unknown field could be a sign of a mistake in the Properties.
* @return the flag value (default true)
*/
boolean ignoreUnknownFields() default true;
}
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- 本文标签: Spring Boot Spring Java
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