What is it for?

Execute a block of code for each and every bean that is initialised.

  • Bean Post Processor is a separate class
  • Spring executes the code in the Post Processor after initializing each and every bean


Print the Name of Every Bean that is Initialized


package com.skills421.examples.spring;

public class DisplayNameBeanPostProcessor implements BeanPostProcessor
    public Object postProcessBeforeInitialization(Object bean, String beanName)
        return bean;

    public Object postProcessAfterInitialization(Object bean, String beanName)
        System.out.println("Initialized Bean: "+beanName);
        return bean;

Register the BeanPostProcessor with Spring


<bean class="com.skills421.examples.spring.DisplayNameBeanPostProcessor" />

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