스프링 설정 파일 분리
applicationContext.xml 파일 이름은 자신이 원하는 대로 적어도 되지만, 상징적인 의미로 여기서는
IOC 컨테이너의 핵심 인터페이스인 applicationContext 이름을 따서 지었습니다. 이 applicationContext.xml 파일이
커질 수 있기 때문에 분리하여 관리하는 방법을 배워 봅시다.
즉, 빈(Bean, 객체)을 관리하는 IOC 컨테이너를 역할 분담방식으로 분리하겠다는 의미입니다.
다시말해, 1개 였던 IOC 컨테이너를 여러개로 쪼개는 것입니다.
파일을 분리하게 되면 기존에 GenericXmlApplicationContext를 하나만 사용했는 파일이 3개 이므로
배열로 classpath를 받아서 GenericXmlApplicationContext 생성자에 배열 참조 변수를 넣어서 사용하면 됩니다.
- 기존 코드
GenericXmlApplicationContext ctx =
new GenericXmlApplicationContext("classpath:applicationContext.xml");
- 변경 코드
String[] appCtxs = {"classpath:appCtx1.xml", "classpath:appCtx2.xml", "classpath:appCtx3.xml"};
GenericXmlApplicationContext ctx = new GenericXmlApplicationContext(appCtxs);
- import를 사용 했을 때의 코드
GenericXmlApplicationContext ctx =
new GenericXmlApplicationContext("classpath:appCtxImport.xml");
분리 방법
분리하는 방법은 개발자가 자신이 마음대로 분리하면 되긴 하지만, 일반적으로는 기능 단위로 구분지어서
분리하면 됩니다.
EXAMPLE
기존 IOC 컨테이너가 1개인 applicationContext.xml을 3개로 쪼개는 과정입니다.
생성자 부분, 데이터베이스 관련 부분, 그 외 부분으로 분리한 코드 입니다.
분리한 파일명은 기능에 알맞게 지어주면 됩니다.
- applicationContext.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">
<bean id="studentDao" class="ems.member.dao.StudentDao" ></bean>
<bean id="registerService" class="ems.member.service.StudentRegisterService">
<constructor-arg ref="studentDao" ></constructor-arg>
</bean>
<bean id="modifyService" class="ems.member.service.StudentModifyService">
<constructor-arg ref="studentDao" ></constructor-arg>
</bean>
<bean id="deleteService" class="ems.member.service.StudentDeleteService">
<constructor-arg ref="studentDao" ></constructor-arg>
</bean>
<bean id="selectService" class="ems.member.service.StudentSelectService">
<constructor-arg ref="studentDao" ></constructor-arg>
</bean>
<bean id="allSelectService" class="ems.member.service.StudentAllSelectService">
<constructor-arg ref="studentDao" ></constructor-arg>
</bean>
<bean id="dataBaseConnectionInfoDev" class="ems.member.DataBaseConnectionInfo">
<property name="jdbcUrl" value="jdbc:oracle:thin:@localhost:1521:xe" />
<property name="userId" value="scott" />
<property name="userPw" value="tiger" />
</bean>
<bean id="dataBaseConnectionInfoReal" class="ems.member.DataBaseConnectionInfo">
<property name="jdbcUrl" value="jdbc:oracle:thin:@192.168.0.1:1521:xe" />
<property name="userId" value="masterid" />
<property name="userPw" value="masterpw" />
</bean>
<bean id="informationService" class="ems.member.service.EMSInformationService">
<property name="info">
<value>Education Management System program was developed in 2015.</value>
</property>
<property name="copyRight">
<value>COPYRIGHT(C) 2015 EMS CO., LTD. ALL RIGHT RESERVED. CONTACT MASTER FOR MORE INFORMATION.</value>
</property>
<property name="ver">
<value>The version is 1.0</value>
</property>
<property name="sYear">
<value>2015</value>
</property>
<property name="sMonth">
<value>1</value>
</property>
<property name="sDay">
<value>1</value>
</property>
<property name="eYear" value="2015" />
<property name="eMonth" value="2" />
<property name="eDay" value="28" />
<property name="developers">
<list>
<value>Cheney.</value>
<value>Eloy.</value>
<value>Jasper.</value>
<value>Dillon.</value>
<value>Kian.</value>
</list>
</property>
<property name="administrators">
<map>
<entry>
<key>
<value>Cheney</value>
</key>
<value>[email protected]</value>
</entry>
<entry>
<key>
<value>Jasper</value>
</key>
<value>[email protected]</value>
</entry>
</map>
</property>
<property name="dbInfos">
<map>
<entry>
<key>
<value>dev</value>
</key>
<ref bean="dataBaseConnectionInfoDev"/>
</entry>
<entry>
<key>
<value>real</value>
</key>
<ref bean="dataBaseConnectionInfoReal"/>
</entry>
</map>
</property>
</bean>
</beans>
- appService.xml(appCtx1)
<?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">
<bean id="studentDao" class="ems.member.dao.StudentDao" ></bean>
<bean id="registerService" class="ems.member.service.StudentRegisterService">
<constructor-arg ref="studentDao" ></constructor-arg>
</bean>
<bean id="modifyService" class="ems.member.service.StudentModifyService">
<constructor-arg ref="studentDao" ></constructor-arg>
</bean>
<bean id="deleteService" class="ems.member.service.StudentDeleteService">
<constructor-arg ref="studentDao" ></constructor-arg>
</bean>
<bean id="selectService" class="ems.member.service.StudentSelectService">
<constructor-arg ref="studentDao" ></constructor-arg>
</bean>
<bean id="allSelectService" class="ems.member.service.StudentAllSelectService">
<constructor-arg ref="studentDao" ></constructor-arg>
</bean>
</beans>
- appDatabase.xml(appCtx2)
<?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">
<bean id="dataBaseConnectionInfoDev" class="ems.member.DataBaseConnectionInfo">
<property name="jdbcUrl" value="jdbc:oracle:thin:@localhost:1521:xe" />
<property name="userId" value="scott" />
<property name="userPw" value="tiger" />
</bean>
<bean id="dataBaseConnectionInfoReal" class="ems.member.DataBaseConnectionInfo">
<property name="jdbcUrl" value="jdbc:oracle:thin:@192.168.0.1:1521:xe" />
<property name="userId" value="masterid" />
<property name="userPw" value="masterpw" />
</bean>
</beans>
- appInformation.xml(appCtx3)
<?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">
<bean id="informationService" class="ems.member.service.EMSInformationService">
<property name="info">
<value>Education Management System program was developed in 2015.</value>
</property>
<property name="copyRight">
<value>COPYRIGHT(C) 2015 EMS CO., LTD. ALL RIGHT RESERVED. CONTACT MASTER FOR MORE INFORMATION.</value>
</property>
<property name="ver">
<value>The version is 1.0</value>
</property>
<property name="sYear">
<value>2015</value>
</property>
<property name="sMonth">
<value>1</value>
</property>
<property name="sDay">
<value>1</value>
</property>
<property name="eYear" value="2015" />
<property name="eMonth" value="2" />
<property name="eDay" value="28" />
<property name="developers">
<list>
<value>Cheney.</value>
<value>Eloy.</value>
<value>Jasper.</value>
<value>Dillon.</value>
<value>Kian.</value>
</list>
</property>
<property name="administrators">
<map>
<entry>
<key>
<value>Cheney</value>
</key>
<value>[email protected]</value>
</entry>
<entry>
<key>
<value>Jasper</value>
</key>
<value>[email protected]</value>
</entry>
</map>
</property>
<property name="dbInfos">
<map>
<entry>
<key>
<value>dev</value>
</key>
<ref bean="dataBaseConnectionInfoDev"/>
</entry>
<entry>
<key>
<value>real</value>
</key>
<ref bean="dataBaseConnectionInfoReal"/>
</entry>
</map>
</property>
</bean>
</beans>
import
import를 사용해서 3개로 분리한 appCtx1, appCtx2, appCtx3 파일을 appCtx1 파일에서 appCtx2와 appCtx3파일을 import 하면 하나의 IOC 컨테이너인 xml 파일이 완성 됩니다.
- 추가 해야 하는 소스
<import resource="classpath:appCtx2.xml"/>
<import resource="classpath:appCtx3.xml"/>
- appCtx1에서 appCtx2와 appCtx3을 import한 하나의 IOC 컨테이너 XML 파일
<?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">
<import resource="classpath:appCtx2.xml"/>
<import resource="classpath:appCtx3.xml"/>
<bean id="studentDao" class="ems.member.dao.StudentDao" ></bean>
<bean id="registerService" class="ems.member.service.StudentRegisterService">
<constructor-arg ref="studentDao" ></constructor-arg>
</bean>
<bean id="modifyService" class="ems.member.service.StudentModifyService">
<constructor-arg ref="studentDao" ></constructor-arg>
</bean>
<bean id="deleteService" class="ems.member.service.StudentDeleteService">
<constructor-arg ref="studentDao" ></constructor-arg>
</bean>
<bean id="selectService" class="ems.member.service.StudentSelectService">
<constructor-arg ref="studentDao" ></constructor-arg>
</bean>
<bean id="allSelectService" class="ems.member.service.StudentAllSelectService">
<constructor-arg ref="studentDao" ></constructor-arg>
</bean>
</beans>
- 메인 클래스에서 GenericXmlApplicationContext 사용하는 방법
GenericXmlApplicationContext ctx =
new GenericXmlApplicationContext("classpath:appCtxImport.xml");
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