Spring定义继承

文件目录

1.导入依赖


           
            
            
                
     
      org.springframework
                 
     
      spring-webmvc
                 
     
      5.2.0.RELEASE
             
            
            
                
     
      junit
                 
     
      junit
                 
     
      4.12
             
            
            
            
                
     
      org.aspectj
                 
     
      aspectjweaver
                 
     
      1.9.4
             
        
       
           
                
                     
      
       src/main/resources
                      
                          
       
        **/*.properties
                           
       
        **/*.xml
                       
                      
      
       false
                  
                 
                     
      
       src/main/java
                      
                          
       
        **/*.properties
                           
       
        **/*.xml
                       
                      
      
       false

2.编写实体类

HelloSpring

package com.qin.pojo;public class HelloSpring {
       private String msg1;    private String msg2;    public String getMsg1() {
           System.out.println("SpringHello 1 msg1 = "+msg1);        return msg1;    }    public void setMsg1(String msg1) {
           this.msg1 = msg1;    }    public String getMsg2() {
           System.out.println("SpringHello 1 msg2 = "+msg2);        return msg2;    }    public void setMsg2(String msg2) {
           this.msg2 = msg2;    }}

HelloSpring2

package com.qin.pojo;public class HelloSpring2 {
       private String msg1;    private String msg2;    private String msg3;    public String getMsg1() {
           System.out.println("SpringHello 2 msg1 = "+msg1);        return msg1;    }    public void setMsg1(String msg1) {
           this.msg1 = msg1;    }    public String getMsg2() {
           System.out.println("SpringHello 2 msg2 = "+msg2);        return msg2;    }    public void setMsg2(String msg2) {
           this.msg2 = msg2;    }    public String getMsg3() {
           System.out.println("SpringHello 2 msg3 = "+msg3);        return msg3;    }    public void setMsg3(String msg3) {
           this.msg3 = msg3;    }}

3.编写Spring核心配置文件（beans）

application-spring.xml

4.编写测试文件

HelloSpringTest

package com.qin.pojo;import org.springframework.context.support.ClassPathXmlApplicationContext;public class HelloSpringTest {
       public static void main(String[] args) {
           //我们需要使用ClassPathXmlApplicationContext类，来帮我们找到Spring的核心配置文件        ClassPathXmlApplicationContext cpx = new ClassPathXmlApplicationContext("application-spring.xml");        //通过getBean方法来获取bean的id 来找到具体的类   helloSpring就是bean的id        HelloSpring helloSpring = cpx.getBean("helloSpring", HelloSpring.class);        //helloSpring就相当于是被HelloSpring类new 出来的对象，只不过spring帮我们做了        //所以我们可以使用HelloSpring类的getMsg()方法        helloSpring.getMsg1();        helloSpring.getMsg2();        HelloSpring2 helloSpring2 = cpx.getBean("helloSpring2", HelloSpring2.class);        helloSpring2.getMsg1();        helloSpring2.getMsg2();        helloSpring2.getMsg3();    }}