1 使用構造器例項化

<!-- 呼叫預設構造器實現 可以使用scope="prototype"指定是否使用單例模式 -->
<bean id="personService" class="com.heying.service.impl.PersonServiceBean"/>

2 使用靜態工廠

<!-- 通過id找到建立的工廠類，並使用註明的靜態方法找到相應的method -->
<bean id="personService" class="com.heying.service.impl.PersonServiceBeanFactory" factory-method="creatPersonServiceBean"
 
/>
public class PersonServiceBeanFactory{
    public static PersonServiceBean creatPersonServiceBean(){
        return new PersonServiceBean();
    }
}

3 使用例項工廠

<!-- 例項化PersonServiceBeanFactory，然後使用工廠裡面指定的方法建立 -->
<bean id="personServiceFactory" class="com.heying.service.impl.PersonServiceBeanFactory"
 
/>
<bean id="personService" factory-bean="personServiceFactory" factory-method="creatPersonServiceBean"/>

public class PersonServiceBeanFactory{
    public PersonServiceBean creatPersonServiceBean(){
        return new PersonServiceBean();
    }
}

裝配：

AbstractApplicationContext applicationContext = new ClassPathXmlApplicationContext("beans.xml"
 
);
PersonService personService = (PersonService) applicationContext.getBean("personService");
personService.save();