@Profile的作用是把一些meta-data进行分类，分成Active和InActive这两种状态，然后你可以选择在active 和在Inactive这两种状态 下配置bean,
在Inactive状态通常的注解有一个！操作符，通常写为：@Profile("!p"),这里的p是Profile的名字。
下面demo中AppProfileConfig的bean在active状态下被IOC容器创建，而AppProfileConfig2是在Inactive状态下被IOC容器创建：
demo的思路是：先定义两个domain类，再写两个配置类即上面提的AppProfileConfig和AppProfileConfig2这两个类，最后写一个测试类：
示例代码如下：
第一个domain类：Alarm类的代码如下：
package com.timo.profile.domain;
public class Alarm {
private String name;
private Integer alarmSeverity;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Integer getAlarmSeverity() {
return alarmSeverity;
}
public void setAlarmSeverity(Integer alarmSeverity) {
this.alarmSeverity = alarmSeverity;
}
}第二个domain类：ouyangfeng的代码如下：
package com.timo.profile.domain;
public class Ouyangfeng {
private String name;
private Integer age;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Integer getAge() {
return age;
}
public void setAge(Integer age) {
this.age = age;
}
}第一个配置类：AppProfileConfig的代码如下：
package com.timo.profile; import com.timo.profile.domain.Alarm;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Profile; @Configuration
@Profile("sixi")
public class AppProfileConfig {
@Bean
public Alarm alarm(){
Alarm alarm = new Alarm();
alarm.setAlarmSeverity();
alarm.setName("历史告警");
return alarm;
}
}
第二个配置类AppProfileConfig2的代码如下：
package com.timo.profile; import com.timo.profile.domain.Ouyangfeng;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Profile; @Configuration
@Profile("!flower")
public class AppProfileConfig2 {
@Bean
public Ouyangfeng ouyangfeng(){
Ouyangfeng ouyangfeng = new Ouyangfeng();
ouyangfeng.setAge();
ouyangfeng.setName("欧阳");
return ouyangfeng;
}
}
测试类的代码如下：
package com.timo.profile; import com.timo.profile.domain.Alarm;
import com.timo.profile.domain.Ouyangfeng;
import org.springframework.context.annotation.AnnotationConfigApplicationContext; public class Test {
public static void main(String[] args) {
AnnotationConfigApplicationContext ctx = new AnnotationConfigApplicationContext();
//激活@Profile中name为sixi的类：
ctx.getEnvironment().setActiveProfiles("sixi");
ctx.register(AppProfileConfig.class,AppProfileConfig2.class);
ctx.refresh();
Alarm alarm = ctx.getBean(Alarm.class);
Ouyangfeng ouyangfeng = ctx.getBean(Ouyangfeng.class);
System.out.println("alarm="+alarm);
System.out.println("ouyangfeng="+ouyangfeng); }
}