Admin: 1 версия

2010-06-01T06:16:06Z

1 версия

в 18:01, 31 мая 2010

2010-05-31T18:01:44Z

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== Add BeanPostProcessor To XmlBeanFactory ==



<source lang="java">

File: context.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN"
"http://www.springframework.org/dtd/spring-beans.dtd">
<beans>
<bean id="w" class="java.lang.String">
</bean>

<bean id="beanInitLogger" class="BeanInitializationLogger"/>
</beans>

File: Main.java
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.config.BeanPostProcessor;
import org.springframework.beans.factory.xml.XmlBeanFactory;
import org.springframework.core.io.ClassPathResource;
class Main {
public static void main(String args[]) throws Exception {
XmlBeanFactory factory = new XmlBeanFactory(new ClassPathResource("context.xml"));
BeanInitializationLogger logger = new BeanInitializationLogger();
factory.addBeanPostProcessor(logger);

factory.preInstantiateSingletons();

}
}
class BeanInitializationLogger implements BeanPostProcessor {
public Object postProcessBeforeInitialization(Object bean, String beanName)
throws BeansException {
return bean;
}
public Object postProcessAfterInitialization(Object bean, String beanName)
throws BeansException {

System.out.println("Bean "" + beanName + "" initialized");
return bean;
}
}

</source>



== Implements BeanPostProcessor ==



<source lang="java">

File: context.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN"
"http://www.springframework.org/dtd/spring-beans.dtd">
<beans>
<bean id="w" class="java.lang.String">
</bean>

<bean id="beanInitLogger" class="BeanInitializationLogger"/>
</beans>

File: Main.java
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.config.BeanPostProcessor;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
class Main {
public static void main(String args[]) throws Exception {
ApplicationContext ctx = new ClassPathXmlApplicationContext("context.xml");
ctx.getBean("w");

}
}
class BeanInitializationLogger implements BeanPostProcessor {
public Object postProcessBeforeInitialization(Object bean, String beanName)
throws BeansException {
return bean;
}
public Object postProcessAfterInitialization(Object bean, String beanName)
throws BeansException {

System.out.println("Bean "" + beanName + "" initialized");
return bean;
}
}

</source>

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Java/Spring/BeanPostProcessor - История изменений

Admin: 1 версия

в 18:01, 31 мая 2010