Spring 一二事（2）

　　 <!-- factory-method 是指调用静态工厂方法 -->
<bean id="helloWorld2" class="com.lee.spring002.createobject.method.HelloWorldFactory"
factory-method="getInstance"></bean>

<!-- 实例工厂 -->
<bean id="helloWorldFactory"
class="com.lee.spring002.createobject.method.HelloWorldFactory2"></bean>
<!-- factory-bean 是一个工厂bean -->
<bean id="helloWorld3" factory-bean="helloWorldFactory"
factory-method="getInstance"></bean>

package com.lee.spring002.createobject.method;

import com.lee.spring001.createobject.HelloWorld;

public class HelloWorldFactory {

public static HelloWorld getInstance() {
return new HelloWorld();
}
}

package com.lee.spring002.createobject.method;

import com.lee.spring001.createobject.HelloWorld;

public class HelloWorldFactory2 {

public HelloWorld getInstance() {
return new HelloWorld();
}
}

@Test
public void testHelloWorld_StaticFactory() {

ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");

HelloWorld hello = (HelloWorld)context.getBean("helloWorld2");
hello.hello();
}

@Test
public void testHelloWorld_InstanceFactory() {

ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");

HelloWorld hello = (HelloWorld)context.getBean("helloWorld3");
hello.hello();
}