12_注解04_注解实现Action调用Service，Service调用Dao的过程

【工程截图】

 

【PersonDao.java】

package com.HigginCui.annotation;

public interface PersonDao {
    public void savePerson();
}

【PersonDaoImpl.java】

package com.HigginCui.annotation;

import org.springframework.stereotype.Repository;
/*
 * @Repository("personDao")相当于
 * <bean id="personDao" class="......PersonDaoImpl"></bean>
 */
@Repository("personDao")
public class PersonDaoImpl implements PersonDao{
    public void savePerson() {
        System.out.println("save Person...");
    }
}

【PersonService.java】

package com.HigginCui.annotation;

public interface PersonService {
    public void savePerson();
}

【PersonServiceImpl.java】

package com.HigginCui.annotation;

import javax.annotation.Resource;
import org.springframework.stereotype.Service;

@Service("personService")
public class PersonServiceImpl implements PersonService{
    @Resource(name="personDao")
    private PersonDao personDao;
    public void setPersonDao(PersonDao personDao) {
        this.personDao = personDao;
    }
    @Override
    public void savePerson() {
        this.personDao.savePerson();
    } 
}

【PersonAction.java】

package com.HigginCui.annotation;

import javax.annotation.Resource;
import org.springframework.stereotype.Controller;

@Controller("personAction")
public class PersonAction {
    @Resource(name="personService")
    private PersonService personService;

    public void setPersonService(PersonService personService) {
        this.personService = personService;
    }
    
    public void savePerson(){
        this.personService.savePerson();
    }
}

【applicationContext.xml】

<?xml version= "1.0" encoding ="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
        xmlns:context="http://www.springframework.org/schema/context"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
           http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
           http://www.springframework.org/schema/context
           http://www.springframework.org/schema/context/spring-context-2.5.xsd">

    <!-- 把一个类放入到Spring容器中，该类就是一个component，此时不需要声明对应的bean -->
    <context:component-scan base-package="com.HigginCui.annotation"></context:component-scan>
</beans>

【testPerson.java】

save Person...