Introduction: write your own an interface and an implementation class, an instance of this class USES the Spring framework

CodePudding user response:

 package com. The add. Config. 

The import org.springframework.context.annotation.Com ponentScan; 

@ ComponentScan (value="https://bbs.csdn.net/topics/com.add") 
Public class AddConfig 
{

} 

 package com. The add. Impl; 

The import org.springframework.stereotype.Com ponent; 

The import com. The add. Pojo. Adder; 
The import com. The add. Service. The AddService; 

@ Component 
Public class AddImpl implements the AddService 
{

@ Override 
Public int the sum (Adder a, Adder b) 
{
The return of al-qeada etE () + b.g etE (); 
} 

} 

 package com. The add. Pojo; 

The import org.springframework.stereotype.Com ponent; 

@ Component 
Public class Adder 
{
Private int e; 

Public int getE () 
{
return e; 
} 

Public void setE (int) e 
{
This. E=e; 
} 

} 

 package com. The add. Service; 

The import com. The add. Pojo. Adder; 

Public interface the AddService 
{
Public int the sum (Adder a, Adder b); 
} 

 package com. The add. Main; 

The import org. Springframework. Context. ApplicationContext; 
The import org. Springframework. Context. The annotation. AnnotationConfigApplicationContext; 

The import com. The add. Config. AddConfig; 
The import com. The add. Impl. AddImpl; 
The import com. The add. Pojo. Adder; 
The import com. The add. Service. The AddService; 

Public class AddMain 
{

Public static void main (String [] args) 
{
ApplicationContext CTX=new AnnotationConfigApplicationContext (AddConfig. Class); 
The AddService the AddService=CTX. GetBean (AddImpl. Class); 

Adder a=new Adder (); 
Adder b=new Adder (); 

A.s etE (6); 
B.s etE (5); 

System. The out. Println (the addService. Sum (a, b));//11 
(CTX) (AnnotationConfigApplicationContext). The close (); 
} 

}