这一章节我们来讨论一下基于java的标准注解装配标签@Inject的限定器@Named。
1.domain
蛋糕类：
package com.raylee.my_new_spring.my_new_spring.ch02.topic_1_16;import javax.inject.Named;@Named("myCake")public class Cake { private String name = ""; public String getName() { return name; } public void setName(String name) { this.name = name; }} 这里须要注意的是：在Cake类上面须要标注@Named这个标签，标注他是myCake类型 厨师类：
package com.raylee.my_new_spring.my_new_spring.ch02.topic_1_16;import javax.inject.Inject;import javax.inject.Named;public class Chief { private Cake cake = null; @Inject @Named("myCake") public Chief(Cake cake) { this.cake = cake; } private String name = ""; public String getName() { return name; } public Cake makeOneCake() { System.out.println(getName() + " make " + cake.getName()); return cake; } public void setName(String name) { this.name = name; }} 相同，在厨师类这里注入也须要@Named这个标签来标注注入myCake这个类型。 2.測试类：
package com.raylee.my_new_spring.my_new_spring.ch02.topic_1_16;import org.junit.Test;import org.junit.runner.RunWith;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.context.ApplicationContext;import org.springframework.test.context.ContextConfiguration;import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;@RunWith(SpringJUnit4ClassRunner.class)@ContextConfiguration(locations = { "/com/raylee/my_new_spring/my_new_spring/ch02/topic_1_16/ApplicationContext-test.xml" })public class ChiefTest { @Autowired private ApplicationContext applicationContext; @Test public void testChief() { Chief jack = applicationContext.getBean(Chief.class); jack.makeOneCake(); }} 3.配置文件
> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:util="http://www.springframework.org/schema/util" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-2.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.1.xsd http://www.springframework.org/schema/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa-1.0.xsd http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd"> <bean class="com.raylee.my_new_spring.my_new_spring.ch02.topic_1_16.Cake" p:name="blueberryCheeseCake" scope="prototype" /> <bean id="jack" class="com.raylee.my_new_spring.my_new_spring.ch02.topic_1_16.Chief" p:name="jack" /> </beans>
为了測试。我们去掉了bean的id測试输出：
jack make blueberryCheeseCake
总结：这一章节主要介绍基于java的标准注解装配标签@Inject的限定器@Named。
文件夹：
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