测试spring中的org.springframework.beans.factory.InitializingBean

最新推荐文章于 2025-01-17 19:51:36 发布

最新推荐文章于 2025-01-17 19:51:36 发布 · 1k 阅读

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#Spring #Java #XML #junit #Bean

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本文通过一个简单的示例展示了如何使用Spring框架中的InitializingBean接口来实现Bean的初始化操作。示例中定义了一个名为MyInitBean的类实现了InitializingBean接口，并重写了afterPropertiesSet方法，在该方法中打印了一条消息。

MyInitBean.java


import org.springframework.beans.factory.InitializingBean;

public class MyInitBean implements InitializingBean {

	@Override
	public void afterPropertiesSet() throws Exception {
		System.out.println("调用InitializingBean的afterPropertiesSet()...");
	}
}

TestInitBean.java


import org.springframework.beans.factory.BeanFactory;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import junit.framework.TestCase;


public class TestInitBean extends TestCase {
	private BeanFactory bf;

	protected void setUp() {
		bf = new ClassPathXmlApplicationContext("applicationContext.xml");
	}

	public void testLifeCycle() throws Exception {   
		MyInitBean hello = (MyInitBean) bf.getBean("myInitBean");
    }
}

applicationContext.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="myInitBean" class="MyInitBean" >
    </bean>  
</beans>