这一章节我们来讨论一下基于java的标准注解装配标签@Inject是如何通过通过set方法或者其它方法注入？

在使用@Inject标签之前。我们须要在pom文件中面增加以下的代码：

     			
      
       javax.inject
      			
      
       javax.inject
      			
      
       1
      		
     

上面是j2ee里面标准的inject标签依赖。

1.domain

蛋糕类：（不变）

package com.raylee.my_new_spring.my_new_spring.ch02.topic_1_14;public class Cake {	private String name = "";	public String getName() {		return name;	}	public void setName(String name) {		this.name = name;	}}

厨师类：

通过set方法注入

package com.raylee.my_new_spring.my_new_spring.ch02.topic_1_14;import javax.inject.Inject;public class Chief {	private Cake cake = null;	public Cake getCake() {		return cake;	}	@Inject	public void setCake(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;	}}

通过其它方法注入：

package com.raylee.my_new_spring.my_new_spring.ch02.topic_1_14;import javax.inject.Inject;public class Chief {	private Cake cake = null;	public Cake getCake() {		return cake;	}	@Inject	public void injectCake(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;	}}

这里须要注意的是。尽管我们的cake属性域是赋值为null。可是当spring容器启动时，通过@Inject标签在set方法或者其它方法的地方注入cake对象

2.測试类：

package com.raylee.my_new_spring.my_new_spring.ch02.topic_1_14;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_14/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：

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是如何通过set方法或者其它方法注入。

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