一.简单案例   打印hello  spring

1.导包

               
                   
        
         org.springframework
                    
        
         spring-beans
                    
        
         4.2.3.RELEASE
                
               
               
                   
        
         org.springframework
                    
        
         spring-context
                    
        
         4.2.2.RELEASE
                
       

 

 

2.创建HappyService类

public class HappyService {    private String info;    public void work(){        System.out.println("Hello "+info);    }    public String getInfo() {        return info;    }    public void setInfo(String info) {        this.info = info;    }}

 

3.创建applicationContext.xml文件

4.测试类

@Test    public void test01(){        ApplicationContext ac=new ClassPathXmlApplicationContext("applicationContext.xml");        HappyService service=(HappyService)ac.getBean("HappyService");        service.work();    }