Spring Boot @PostConstructlast modified July 20, 2023 Spring Boot @PostConstruct tutorial shows how to use the @PostConstruct annotation in a Spring application. Spring is a popular Java application framework and Spring Boot is an evolution of Spring that helps create stand-alone, production-grade ...
具体实现类是InitDestroyAnnotationBeanPostProcessor,具体的逻辑是:先查询被@PostConstruct标记的方法,然后使用java反射去执行这个方法。回答完后,如果他不换一个问题的话,把Springboot的扩展点都给他盘一遍。 前言 @postContruct全限定类名是javax.annotation.PostConstruct,可以看出来其本身不是Spring定义的注解,但是Spring...
问Spring Boot @异步与@PostConstruct一起使用ENimportlombok.RequiredArgsConstructor;importlombok.SneakyThrows...
首先来说说javax.annotation-api下的@PostConstruct【这里声明一个问题,和@PostConstruct对应的还有个@PreDestroy,很多文章都写成@PreConstruct,没有这个注解哈,这个是一个小问题,这里提一下】 在Spring中,构造器Constructor,@Autowired,@PostConstruct三者的执行顺序,首先说@PostConstruct修饰的方法是在构造函数执行之后执行的,...
从之前文章@Autowired注解原理分析和Spring bean生命周期管理两篇文章可以知道,@Autowired和@PostConstruct逻辑分别由AutowiredAnnotationBeanPostProcessor和CommonAnnotationBeanPostProcessor实现,执行顺序AutowiredAnnotationBeanPostProcessor在前,CommonAnnotationBeanPostProcessor在后。
new AnnotationConfigApplicationContext(AppConfig.class); Service1 service1 = context.getBean(Service1.class); System.out.println(service1); context.close(); } // 结果 Service1{repositoryA=com.crab.spring.ioc.demo09.RepositoryA@1622f1b, repositoryB=com.crab.spring.ioc.demo09.RepositoryB@72a7c...
packagecom.study.test.postConstruct;importorg.springframework.stereotype.Component;importjavax.annotation.PostConstruct;/*** @Description: * @Author: chen * @Date: Created in 2019/2/25*/@ComponentpublicclassInit { @PostConstructprivatevoidinit(){ ...
packagecom.example.studySpringBoot.util; importcom.example.studySpringBoot.service.MyMethorClassService; importorg.springframework.beans.factory.annotation.Autowired; importorg.springframework.stereotype.Component; importjavax.annotation.PostConstruct;
Spring启动,constructor,@PostConstruct,afterPropertiesSet,onApplicationEvent执行顺序 2019-12-22 18:07 −package com.xx; import javax.annotation.PostConstruct; import javax.annotation.Resource; &nb... 那些年的代码 0 1339 spring探秘:通过BeanPostProcessor、@PostConstruct、InitializingBean在启动前执行方法 ...
Explore different types of filter options available with the @ComponentScan annotation. Read more→ 2.@PostConstruct Spring calls the methods annotated with@PostConstructonly once, just after the initialization of bean properties. Keep in mind that these methods will run even if there's nothing to ...