springboot注解@Configuration属性proxyBeanMethods详解

proxyBeanMethods属性默认值是true,也就是说该配置类会被代理(CGLIB),在同一个配置文件中调用其它被@Bean注解标注的方法获取对象时会直接从IOC容器之中获取;

1.看下源码注解
java 复制代码
	/**
	 * Specify whether {@code @Bean} methods should get proxied in order to enforce
	 * bean lifecycle behavior, e.g. to return shared singleton bean instances even
	 * in case of direct {@code @Bean} method calls in user code. This feature
	 * requires method interception, implemented through a runtime-generated CGLIB
	 * subclass which comes with limitations such as the configuration class and
	 * its methods not being allowed to declare {@code final}.
	 * <p>The default is {@code true}, allowing for 'inter-bean references' via direct
	 * method calls within the configuration class as well as for external calls to
	 * this configuration's {@code @Bean} methods, e.g. from another configuration class.
	 * If this is not needed since each of this particular configuration's {@code @Bean}
	 * methods is self-contained and designed as a plain factory method for container use,
	 * switch this flag to {@code false} in order to avoid CGLIB subclass processing.
	 * <p>Turning off bean method interception effectively processes {@code @Bean}
	 * methods individually like when declared on non-{@code @Configuration} classes,
	 * a.k.a. "@Bean Lite Mode" (see {@link Bean @Bean's javadoc}). It is therefore
	 * behaviorally equivalent to removing the {@code @Configuration} stereotype.
	 * @since 5.2
	 */
	boolean proxyBeanMethods() default true;
1234567891011121314151617181920

注解的意思是proxyBeanMethods配置类是用来指定@Bean注解标注的方法是否使用代理,默认是true使用代理,直接从IOC容器之中取得对象;如果设置为false,也就是不使用注解,每次调用@Bean标注的方法获取到的对象和IOC容器中的都不一样,是一个新的对象,所以我们可以将此属性设置为false来提高性能;

GitHub地址:https://github.com/mingyang66/spring-parent/tree/master/doc/base

相关推荐
没书读了28 分钟前
ssm框架-spring-spring声明式事务
java·数据库·spring
小二·36 分钟前
java基础面试题笔记(基础篇)
java·笔记·python
开心工作室_kaic1 小时前
ssm161基于web的资源共享平台的共享与开发+jsp(论文+源码)_kaic
java·开发语言·前端
懒洋洋大魔王1 小时前
RocketMQ的使⽤
java·rocketmq·java-rocketmq
武子康1 小时前
Java-06 深入浅出 MyBatis - 一对一模型 SqlMapConfig 与 Mapper 详细讲解测试
java·开发语言·数据仓库·sql·mybatis·springboot·springcloud
qq_17448285751 小时前
springboot基于微信小程序的旧衣回收系统的设计与实现
spring boot·后端·微信小程序
转世成为计算机大神2 小时前
易考八股文之Java中的设计模式?
java·开发语言·设计模式
qq_327342732 小时前
Java实现离线身份证号码OCR识别
java·开发语言
锅包肉的九珍2 小时前
Scala的Array数组
开发语言·后端·scala
心仪悦悦2 小时前
Scala的Array(2)
开发语言·后端·scala