演示如何在spring配置文件中定义Bean
File: beans.xml
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">
<beans>
<!-- naming examples -->
<bean id="string1" class="java.lang.String"/>
<bean name="string2" class="java.lang.String"/>
<bean class="java.lang.String"/>
</beans>
///////////////////////////////////////////////////////////////////////////////
import org.springframework.beans.factory.BeanFactory;
import org.springframework.beans.factory.xml.XmlBeanFactory;
import org.springframework.core.io.FileSystemResource;
public class BeanNaming {
public static void main(String[] args) {
BeanFactory factory = new XmlBeanFactory(new FileSystemResource(
"build/beans.xml"));
String s1 = (String)factory.getBean("string1");
String s2 = (String)factory.getBean("string2");
String s3 = (String)factory.getBean("java.lang.String");
}
}