Spring使用注解实例化Bean-----Spring框架

╰+哭是因爲堅強的太久メ 2024-03-23 22:10 37阅读 0赞

>     <?xml version="1.0" encoding="UTF-8"?>
>     <beans xmlns="http://www.springframework.org/schema/beans"
>            xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
>            xmlns:context="http://www.springframework.org/schema/context"
>            xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
>                                 http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
>     
>     
>     
>     
>     
>     
>     
>     
>         <context:component-scan base-package="com.powernode.spring6.bean" use-default-filters="true">
>     
>             <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Repository"/>
>         </context:component-scan>
>     </beans>
> 
> <?xml version="1.0" encoding="UTF-8"?>  
> <beans xmlns="http://www.springframework.org/schema/beans"  
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  
> xmlns:context="http://www.springframework.org/schema/context"  
> xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd  
> http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">  
>   
>   
>   
>   
>   
>   
>   
>   
> <context:component-scan base-package="com.powernode.spring6.bean" use-default-filters="true">  
>   
> <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Repository"/>  
> </context:component-scan>  
> </beans>

>     package com.powernode.spring6.bean;
>     
>     import org.slf4j.Logger;
>     import org.slf4j.LoggerFactory;
>     import org.springframework.stereotype.Component;
>     import org.springframework.stereotype.Controller;
>     import org.springframework.stereotype.Repository;
>     import org.springframework.stereotype.Service;
>     
>     @Component
>     public class A
>     {
>         private static final Logger logger = LoggerFactory.getLogger(A.class);
>     
>         public A()
>         {
>             logger.info("A");
>         }
>     }
>     @Controller
>     class B
>     {
>         private static final Logger logger = LoggerFactory.getLogger(B.class);
>     
>         public B()
>         {
>             logger.info("B");
>         }
>     }
>     @Service
>     class C
>     {
>         private static final Logger logger = LoggerFactory.getLogger(C.class);
>     
>         public C()
>         {
>             logger.info("C");
>         }
>     }
>     @Repository
>     class D
>     {
>         private static final Logger logger = LoggerFactory.getLogger(D.class);
>     
>         public D()
>         {
>             logger.info("D");
>         }
>     }
>     @Service
>     class E
>     {
>         private static final Logger logger = LoggerFactory.getLogger(E.class);
>     
>         public E()
>         {
>             logger.info("E");
>         }
>     }
> 
> package com.powernode.spring6.bean;  
>   
> import org.slf4j.Logger;  
> import org.slf4j.LoggerFactory;  
> import org.springframework.stereotype.Component;  
> import org.springframework.stereotype.Controller;  
> import org.springframework.stereotype.Repository;  
> import org.springframework.stereotype.Service;  
>   
> @Component  
> public class A  
> \{  
> private static final Logger logger = LoggerFactory.getLogger(A.class);  
>   
> public A()  
> \{  
> logger.info("A");  
> \}  
> \}  
> @Controller  
> class B  
> \{  
> private static final Logger logger = LoggerFactory.getLogger(B.class);  
>   
> public B()  
> \{  
> logger.info("B");  
> \}  
> \}  
> @Service  
> class C  
> \{  
> private static final Logger logger = LoggerFactory.getLogger(C.class);  
>   
> public C()  
> \{  
> logger.info("C");  
> \}  
> \}  
> @Repository  
> class D  
> \{  
> private static final Logger logger = LoggerFactory.getLogger(D.class);  
>   
> public D()  
> \{  
> logger.info("D");  
> \}  
> \}  
> @Service  
> class E  
> \{  
> private static final Logger logger = LoggerFactory.getLogger(E.class);  
>   
> public E()  
> \{  
> logger.info("E");  
> \}  
> \}

>     package com.powernode.spring6.test;
>     
>     import org.junit.Test;
>     import org.springframework.context.ApplicationContext;
>     import org.springframework.context.support.ClassPathXmlApplicationContext;
>     
>     public class TestAnnotation
>     {
>         @Test
>         public void TestAnnotation()
>         {
>             ApplicationContext applicationContext = new ClassPathXmlApplicationContext("spring.xml");
>         }
>     }
> 
> package com.powernode.spring6.test;  
>   
> import org.junit.Test;  
> import org.springframework.context.ApplicationContext;  
> import org.springframework.context.support.ClassPathXmlApplicationContext;  
>   
> public class TestAnnotation  
> \{  
> @Test  
> public void TestAnnotation()  
> \{  
> ApplicationContext applicationContext = new ClassPathXmlApplicationContext("spring.xml");  
> \}  
> \}