spring究极复习笔记

    org.springframework
    spring-context
    5.3.1



    junit
    junit
    4.12
    test

创建POJO
 

@Data
@AllArgsConstructor
@NoArgsConstructor
public class Employee {
    private Integer id;
    private String lastName;
    private String email;
    private Double salary;
    private Dept dept;

编写核心配置文件
   配置文件名字applicationContext.xml【beans.xml或spring.xml】
  位置在src/main/resources
  实例代码
 

使用核心类库【容器对象】

@Test
public void testSpringHw(){
    //创建Spring容器对象
    ApplicationContext ioc =
            new ClassPathXmlApplicationContext("applicationContext.xml");

    //通过容器对象，获取需要对象
    Employee empCui = (Employee) ioc.getBean("emp2");
    System.out.println("empCui = " + empCui);

}