Spring Boot for JSP development dynamically creates Bean and Spring Bean

Spring Boot for JSP development dynamically creates Bean and Spring Bean

Spring Boot for JSP development dynamically creates beans

1. Create an Import using annotation @ Import

A. Create the MyImportBeanDefinitionRegistrar registration center.

Java code

import org.springframework.beans.factory.support.BeanDefinitionRegistry; import org.springframework.beans.factory.support.GenericBeanDefinition; import org.springframework.context.annotation.ImportBeanDefinitionRegistrar; import org.springframework.core.type.AnnotationMetadata;  import web0.services.Myservice;   public class MyImportBeanDefinitionRegistrar implements ImportBeanDefinitionRegistrar {    protected String BEAN_NAME = "myservice";    public void dynamicConfiguration() throws Exception {   }      @Override   public void registerBeanDefinitions(AnnotationMetadata importingClassMetadata, BeanDefinitionRegistry registry) {     if (!registry.containsBeanDefinition(BEAN_NAME)) {       GenericBeanDefinition beanDefinition = new GenericBeanDefinition();       beanDefinition.setBeanClass(Myservice.class);       beanDefinition.setSynthetic(true);        registry.registerBeanDefinition(BEAN_NAME, beanDefinition);     }   } } 

B. Add @ Import to the configuration class to introduce the above class.

@Import(MyImportBeanDefinitionRegistrar.class) public class TestConfig{ } 

C. After this operation, you can use spring to obtain the bean.

The above is a simple example of Spring Boot dynamic Bean creation in JSP. If you have any questions, please leave a message or go to the community on this site for discussion. Thank you for reading this article and hope to help you, thank you for your support!