介绍 & lt; ? xml version=?.0“,编码=癠TF-8" ?比;
http://www.springframework.org/schema/beans" & lt; beans xmlns=?;
xmlns: xsi=癶ttp://www.w3.org/2001/XMLSchema-instance", xmlns: aop=癶ttp://www.springframework.org/schema/aop"
xmlns: tx=癶ttp://www.springframework.org/schema/tx", xmlns: p=癶ttp://www.springframework.org/schema/p"
xmlns:上下文=癶ttp://www.springframework.org/schema/context"
xsi: schemaLocation=?
http://www.springframework.org/schema/beans , http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
http://www.springframework.org/schema/aop , http://www.springframework.org/schema/aop/spring-aop-3.2.xsd
http://www.springframework.org/schema/tx , http://www.springframework.org/schema/tx/spring-tx-3.2.xsd
,http://www.springframework.org/schema/context , http://www.springframework.org/schema/context/spring-context-3.2.xsd"的在
& lt;上下文:component-scan 基础包=癝pringStudy.Model"比;
& lt;/背景:component-scan>
& lt;/beans> package SpringStudy;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import SpringStudy.Model.Counter;
import SpringStudy.Model.Piano;
@ configuration
public class SpringConfig {
@ bean
public Piano 钢琴(){
return new 钢琴();
}
@ bean (=name “counter"),
public Counter 计数器(){
return new 计数器(12日“Shake it Off",钢琴());
}
} package SpringStudy.Model;
public class Counter {
public 计数器(),{
}
public 计数器(double 乘数,String 歌,Instrument 仪器),{
时间=this.multiplier 乘数;
时间=this.song 歌;
this.instrument=仪器;
}
private double 乘数;
private String 歌;
@
private Instrument 乐器;
public double getMultiplier (), {
return 乘数;
}
public void setMultiplier (double 乘数),{
时间=this.multiplier 乘数;
}
public String getSong (), {
return 歌;
}
public void setSong (String 歌),{
时间=this.song 歌;
}
public Instrument getInstrument (), {
return 乐器;
}
public void setInstrument (Instrument 仪器),{
时间=this.instrument 乐器;
}
} package SpringStudy.Model;
public class Piano {
private String name=癙iano";
private String 声音;
public String getName (), {
return 名称;
}
public void setName (String 名称),{
this.name =,名称;
}
public String getSound (), {
return 声音;
}
public void setSound (String 声音),{
时间=this.sound 声音;
}
} package webMyBatis;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;
import SpringStudy.Model.Counter;
public class SpringTest {
public static void main (String [], args), {//ApplicationContext ctx =, new ClassPathXmlApplicationContext(“春/bean.xml");//,读取bean.xml中的内容
ApplicationContext annotationContext =, new 所(“SpringStudy");
Counter c =, annotationContext.getBean (“counter",, Counter.class);//,创建bean的引用对象
System.out.println (c.getMultiplier ());
System.out.println (c.isEquals ());
System.out.println (c.getSong ());
System.out.println (c.getInstrument () . getname ());
}
}
怎么在春天中利用Java配置@ configuration和@ bean ?针对这个问题,这篇文章详细介绍了相对应的分析和解答,希望可以帮助更多想解决这个问题的小伙伴找到更简单易行的方法。
<强>一,首先,需要xml中进行少量的配置来启动Java配置:
<强>二、定义一个配置类
用@ configuration注解该类,等价与XML中配置豆类;用@ bean标注方法等价于XML中配置bean。
代码如下:
<强>三、基础类代码
<强>计数器:
<>强钢琴类
<强>四、调用测试类
