Spring学习笔记（七）模拟实际开发过程的调用过程XML版-Setter方式注入

模拟实际开发过程的调用过程XML版-Setter方式注入

源码获取github

[TOC]

1.项目结构

2.jar包跟上个一样

3.重写set方法

UserServiceImpl.java

1 2 3 4 5

private UserDao userDao; public void (UserDao userDao) { this.userDao = userDao; }

beans.xml

1 2 3 4 5 6 7

<bean id="userDaoImpl" class="com.hs.dao.impl.UserDaoImpl"/> <bean id="userServiceImpl" class="com.hs.service.impl.UserServiceImpl"> <property name="userDao"> <ref bean="userDaoImpl"/> </property> </bean>

在set方法里代替完成了，private UserDao userDao = new userDaoImpl();

UserController.java

1 2 3 4 5

private UserService userService; public void setUserService(UserService userService) { this.userService = userService; }

beans.xml

1 2 3 4 5 6 7 8 9 10大专栏  Spring学习笔记（七）模拟实际开发过程的调用过程XML版-Setter方式注入/span> 11

<bean id="userServiceImpl" class="com.hs.service.impl.UserServiceImpl"> <property name="userDao"> <ref bean="userDaoImpl"/> </property> </bean> <!--先UserController = new UserController() 再userService = new userServiceImpl(); --> <bean id="userController" class="com.hs.web.UserController" p:userService-ref="userServiceImpl"> <!--<property name="userService" ref="userServiceImpl"/>--> </bean>

在set方法里代替完成了private UserService userService = new userServiceImpl();

4.测试

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

package com.hs.test; import com.hs.web.UserController; import org.junit.Test; import org.springframework.context.ApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext; public class MethodTest { public void test01() { ApplicationContext applicationContext = new ClassPathXmlApplicationContext("beans.xml"); UserController controller = applicationContext.getBean("userController", UserController.class); controller.add(); } }

控制台输出：

UserController层—>ADD
UserService层的实现类—>ADD
UserDao层的实现类—>ADD