스프링 실습 예제(Profile, Environment 사용)

출처 : it-pig.tistory.com/24

- 파일 구조
- resource : appCTX1, appCTX2, appCTX3
- java : ServerInfo, RunConfig, DevConfig, MainClass.java
- Annotation과 xml 방식 포함
- Profile, Environment,  사용(어노테이션, xml)

 

 

 

appCTX1.xml, appCTX2.xml, appCTX3.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd"
	
    profile = "dev">
    
    <!-- 
    profile = "run" --> appCTX1
    profile = "dev" --> appCTX2
    profile = "pej" --> appCTX3
    -->

	<bean id="serverInfo" class = "com.javalec.ex.ServerInfo">
		<property name="ipNum" value="Localhost"/>
		<property name="portNum" value="8181"/>
	</bean>

</beans>

 

 

 

 

ServerInfo.java

package com.javalec.ex;

// Annotation방식으로 의존주입할 데이터 클래스

public class ServerInfo {
	private String ipNum;
	private String portNum;
	
	public String getIpNum() {
		return ipNum;
	}
	public void setIpNum(String ipNum) {
		this.ipNum = ipNum;
	}
	public String getPortNum() {
		return portNum;
	}
	public void setPortNum(String portNum) {
		this.portNum = portNum;
	}
	
	
}

 

 

 

 

RunConfig.java

package com.javalec.ex;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Profile;

@Configuration
@Profile("run")
public class RunConfig {
	
	@Value("199.255.255.255")
	private String ipNum;
	@Value("80")
	private String portNum;
	
	@Bean
	public ServerInfo serverInfo() {
		ServerInfo serverConnection = new ServerInfo();
		serverConnection.setIpNum(ipNum);
		serverConnection.setPortNum(portNum);
		return serverConnection;
	}
	
}

 

 

 

 

DevConfig.java

package com.javalec.ex;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Profile;

@Configuration
@Profile("dev")
public class DevConfig {
	
	@Value("Localhost")
	private String ipNum;
	@Value("8181")
	private String portNum;
	
	@Bean
	public ServerInfo serverInfo() {
		ServerInfo serverConnection = new ServerInfo();
		serverConnection.setIpNum(ipNum);
		serverConnection.setPortNum(portNum);
		return serverConnection;
	}

}

 

 

 

 

MainClass.java

package com.javalec.ex;

import java.util.Scanner;

import org.springframework.context.annotation.AnnotationConfigApplicationContext;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.support.GenericXmlApplicationContext;

public class MainClass {

	public static void main(String[] agrs) {
		String config = null;
		Scanner scanner = new Scanner(System.in);
		String str = scanner.next();

		// 어떤걸 쓸지는 사용자가 맘대로 선택할 수 있음. 코드를 바꾸지 않는상태에서
		if(str.equals("dev")) {
			config = "dev";
		}else if(str.equals("run")) {
			config = "run";
		}else if(str.equals("pej")) {
			config = "pej";
		}

		// XML 로드 방식
		//		GenericXmlApplicationContext ctx = new GenericXmlApplicationContext();
		//		
		//		ctx.getEnvironment().setActiveProfiles(config);
		//		ctx.load("appCTX1.xml","appCTX2.xml","appCTX3.xml");
		//		
		//		ServerInfo info = ctx.getBean("serverInfo",ServerInfo.class);
		//		System.out.println("ip : " + info.getIpNum());
		//		System.out.println("port : " + info.getPortNum());
		
        
        // Annotation, Environment, register
		AnnotationConfigApplicationContext ctx = new AnnotationConfigApplicationContext();
		ctx.getEnvironment().setActiveProfiles(config);
		ctx.register(RunConfig.class, DevConfig.class);
		ctx.refresh();
		
		ServerInfo info = ctx.getBean("serverInfo", ServerInfo.class);
		System.out.println("ip : " + info.getIpNum());
		System.out.println("port : " + info.getPortNum());

		scanner.close();
		ctx.close();
	}
}