Spring BeanPostProcessor Example

By | June 22, 2021

In this post, We will learn about the Spring BeanPostProcessor Example example using a Demo Project.

bean post-processor helps us to customize new bean instances created by the spring Container. If We want to implement some kind of custom logic just after the Spring container finishes instantiating, configuring, and initializing a bean then we usually plug in one or more BeanPostProcessor implementations.

In the case of multiple BeanPostProcessor instances, we can control the order of execution by setting the order property or implement Ordered interface

pom.xml

Message.java

Java class which is registered as Spring bean in applicationContext.xml

MyBeanPostProcessor.java

To create a bean post-processor in spring Framework:

  1. Create a class that implements the BeanPostProcessor interface.
  2. After that implements both callback methods.

applicationContext.xml

Spring Config file there we have to register MyBeanPostProcessor class as spring bean with other Spring beans

ClientTest.java

Client Program with the main method.

If you run ClientTest.java as Java Application then it will give the below output: 

That’s all about Spring BeanPostProcessor Example

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