Spring 中的InitializingBean使用示例

package org.springframework.beans.factory;
public interface InitializingBean {
    void afterPropertiesSet() throws Exception;
}

<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-context</artifactId>
    <version>5.3.20</version>
</dependency>

import org.springframework.beans.factory.InitializingBean;
public class MyBean implements InitializingBean {
    private String property;
    public void setProperty(String property) {
        this.property = property;
    }
    @Override
    public void afterPropertiesSet() throws Exception {
        // 自定义初始化逻辑
        System.out.println("Bean 初始化完成，属性值为: " + property);
    }
}

<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
           http://www.springframework.org/schema/beans/spring-beans.xsd">
    <bean id="myBean" class="com.example.MyBean">
        <property name="property" value="Hello, Spring!"/>
    </bean>
</beans>

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
@Configuration
public class AppConfig {
    @Bean
    public MyBean myBean() {
        MyBean myBean = new MyBean();
        myBean.setProperty("Hello, Spring!");
        return myBean;
    }
}

import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;
public class Main {
    public static void main(String[] args) {
        ApplicationContext context = new AnnotationConfigApplicationContext(AppConfig.class);
        MyBean myBean = context.getBean(MyBean.class);
        // 这里可以使用 myBean
    }
}

import javax.annotation.PostConstruct;
public class MyBean {
    private String property;
    public void setProperty(String property) {
        this.property = property;
    }
    @PostConstruct
    public void init() {
        // 自定义初始化逻辑
        System.out.println("Bean 初始化完成，属性值为: " + property);
    }
}

<bean id="myBean" class="com.example.MyBean" init-method="init">
    <property name="property" value="Hello, Spring!"/>
</bean>

public class MyBean {
    private String property;
    public void setProperty(String property) {
        this.property = property;
    }
    public void init() {
        // 自定义初始化逻辑
        System.out.println("Bean 初始化完成，属性值为: " + property);
    }
}