Spring框架中InitializingBean执行顺序

package org.test.InitializingBean;

import org.springframework.context.support.ClassPathXmlApplicationContext;

/**
 * 测试 spring的 InitializingBean 接口
 * @author Administrator
 *
 */
public class InitializingBeanTest {

    /**
     * @param args
     */
    public static void main(String[] args) {
        
        ClassPathXmlApplicationContext ctx=new ClassPathXmlApplicationContext("applicationContext.xml", 
                InitializingBeanTest.class);
        ctx.start();

    }

}

package org.test.InitializingBean;

import org.springframework.beans.factory.InitializingBean;

/**
 * @see {@link org.springframework.beans.factory.InitializingBean#afterPropertiesSet}
 * @author Administrator
 *
 */
public class User implements InitializingBean {

    public User() {
        System.out.println(">>>>>>> User 默认的构造函数执行了");
    }
        
    @Override
    public void afterPropertiesSet() throws Exception {
        System.out.println(">>>>>>> 执行了 afterPropertiesSet 方法");

    }

}

执行的结果如下图所示。可以看到当执行完User默认的构造函数之后，就会调用该类实现afterPropertiesSet方法