Spring 以及 Spring MVC Bean元素以及@Bean （Bean 等价于 注解 ??? 没理解错误吧）

Indicates that a method produces a bean to be managed by the Spring container.

<h3>Overview</h3>

<p>The names and semantics of the attributes to this annotation are intentionally

similar to those of the {@code <bean/>} element in the Spring XML schema. For

example:

<pre class = "code" >

@Bean

public MyBean myBean() {

return obj;

}</pre>

package com.edu.fruit;

public interface Fruit<T>{

}

package com.edu.fruit;

@Configuration

public class Apple implements Fruit<Integer>{

}

package com.edu.fruit;

@Configuration

public class GinSeng implements Fruit<String>{

}

package com.edu.service;

@Configuration

public class FruitService {

@Autowired

private Apple apple;

@Autowired

private GinSeng ginseng;

@Bean (name= "getApple" )

public Fruit<?> getApple(){

System.out.println(apple.getClass().getName().hashCode);

System.out.println(ginseng.getClass().getName().hashCode);

return new Apple();

}

}

@RunWith (BlockJUnit4ClassRunner. class )

public class Config {

public Config(){

super ( "classpath:spring-fruit.xml" );

}

@Test

public void test(){

super .getBean( "getApple" );

的是一个Apple类实例对象

}

}