继承和接口的注入应用继承和接口的注入应用

关于注入和装配的应用 1.需求背景
【继承和接口的注入应用】总体要求：员工发送信息
分解需求：用注入的方式将员工发消息的类描述清晰

员工对象(Employee)
消息接口(IInfoManage)
员工消息注入操作(EmployeeSendInfo)
解决思路：通过员工实现消息接口，增加员工消息注入操作类。
开始解决问题：
根据需求创建相应的对象

员工对象(Employee)

文章图片
image.png 父类：Person

@Entity public class Person {private String Name; private String Phone; private Date Birthday; public String getName() { return Name; } public void setName(String name) { Name = name; } public String getPhone() { return Phone; } public void setPhone(String phone) { Phone = phone; } public Date getBirthday() { return Birthday; } public void setBirthday(Date birthday) { Birthday = birthday; } }

信息操作接口：IInfoManage

public interface IInfoManage {/** * 信息发送 */ public void MessageSend(); /** * 信息删除 */ public void MessageDel(); }

员工类：Employee

@Component //继承Person实现InfoManage方法 public class Employee extends Person implements IInfoManage {private String Department; private String Station; /** * 所属部门 * @return */ public String getDepartment() { return Department; } public void setDepartment(String department) { Department = department; } /** * 所属岗位 * @return */ public String getStation() { return Station; } public void setStation(String station) { Station = station; } @Override public void MessageSend() { // TODO Auto-generated method stub System.out.println("Employee MessageSend"); } @Override public void MessageDel() { // TODO Auto-generated method stub System.out.println("Employee Del"); } }

EmployeeSendInfo

//用户发送消息 @Component public class EmployeeSendInfo {private IInfoManage infoManage; @Autowired public EmployeeSendInfo(IInfoManage infoManage){ this.infoManage=infoManage; }public void SendInfo(){ this.infoManage.MessageSend(); } }

自动配置类 config.java

@Configuration @ComponentScan public class CDConfig {}

测试

public class test { ApplicationContext context=new AnnotationConfigApplicationContext(CDConfig.class); @Test public void EmployeeSendTest(){ context.getBean(EmployeeSendInfo.class).SendInfo(); } }

最后结果：