@Configuration Java파일로 설정파일 만들기

https://www.inflearn.com/course/%EC%8A%A4%ED%94%84%EB%A7%81-%ED%94%84%EB%A0%88%EC%9E%84%EC%9B%8C%ED%81%AC_renew/dashboard

을 통해서 학습했으며, 아래 자료는 위의 자료로부터 가져온 것임을 밝힙니다.

 

이전 시간까지 xml파일을 이용해서 스프링 설정파일을 만들었다.

스프링에서는 java파일로도 스프링 설정을 할 수가 있다.

 

 

@Configuration이라는 어노테이션을 사용하면 된다.

 

<?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>cheney@springPjt.org</value>
				</entry>
				<entry>
					<key>
						<value>Jasper</value>
					</key>
					<value>jasper@springPjt.org</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>

 

이랬던 코드를

 

package ems.member.configration;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import ems.member.DataBaseConnectionInfo;
import ems.member.dao.StudentDao;
import ems.member.service.EMSInformationService;
import ems.member.service.StudentAllSelectService;
import ems.member.service.StudentDeleteService;
import ems.member.service.StudentModifyService;
import ems.member.service.StudentRegisterService;
import ems.member.service.StudentSelectService;

@Configuration
public class MemberConfig {

	@Bean
	public StudentDao studentDao() {
		return new StudentDao();
	}
	
	@Bean
	public StudentRegisterService registerService() {
		return new StudentRegisterService(studentDao());
	}
	
	@Bean
	public StudentModifyService modifyService() {
		return new StudentModifyService(studentDao());
	}
	
	@Bean
	public StudentSelectService selectService() {
		return new StudentSelectService(studentDao());
	}
	
	@Bean
	public StudentDeleteService deleteService() {
		return new StudentDeleteService(studentDao());
	}
	
	@Bean
	public StudentAllSelectService allSelectService() {
		return new StudentAllSelectService(studentDao());
	}
	
	@Bean
	public DataBaseConnectionInfo dataBaseConnectionInfoDev() {
		DataBaseConnectionInfo infoDev = new DataBaseConnectionInfo();
		infoDev.setJdbcUrl("jdbc:oracle:thin:@localhost:1521:xe");
		infoDev.setUserId("scott");
		infoDev.setUserPw("tiger");
		
		return infoDev;
	}
	
	@Bean
	public DataBaseConnectionInfo dataBaseConnectionInfoReal() {
		DataBaseConnectionInfo infoReal = new DataBaseConnectionInfo();
		infoReal.setJdbcUrl("jdbc:oracle:thin:@192.168.0.1:1521:xe");
		infoReal.setUserId("masterid");
		infoReal.setUserPw("masterpw");
		
		return infoReal;
	}
	
	@Bean
	public EMSInformationService informationService() {
		EMSInformationService info = new EMSInformationService();
		info.setInfo("Education Management System program was developed in 2015.");
		info.setCopyRight("COPYRIGHT(C) 2015 EMS CO., LTD. ALL RIGHT RESERVED. CONTACT MASTER FOR MORE INFORMATION.");
		info.setVer("The version is 1.0");
		info.setsYear(2015);
		info.setsMonth(1);
		info.setsDay(1);
		info.seteYear(2015);
		info.seteMonth(2);
		info.seteDay(28);
		
		ArrayList<String> developers = new ArrayList<String>();
		developers.add("Cheney.");
		developers.add("Eloy.");
		developers.add("Jasper.");
		developers.add("Dillon.");
		developers.add("Kian.");
		info.setDevelopers(developers);
		
		Map<String, String> administrators = new HashMap<String, String>();
		administrators.put("Cheney", "cheney@springPjt.org");
		administrators.put("Jasper", "jasper@springPjt.org");
		info.setAdministrators(administrators);
		
		Map<String, DataBaseConnectionInfo> dbInfos = new HashMap<String, DataBaseConnectionInfo>();
		dbInfos.put("dev", dataBaseConnectionInfoDev());
		dbInfos.put("real", dataBaseConnectionInfoReal());
		info.setDbInfos(dbInfos);
		
		return info;
	}
	
}

 

이렇게 바꿀 수가 있다.

 

보통 XML파일에서

id=" A " class " ~~.~~.~~.B"를

 

public B A() {
	return new B();
}

의 형태로 작성한다.

 

 

 

 

 

 

당연히 

 

//main

// GenericXmlApplicationContext ctx = new GenericXmlApplicationContext("classpath:applicationContext.xml");
AnnotationConfigApplicationContext ctx = new AnnotationConfigApplicationContext(MemberConfig.class);

 

main문이 포함된 코드에서도 GenericXml이 아니라 AnnotationCofig로 바꿔줘야 한다.

 

 

 

 

 

 

 

 

 

 

 

 

개발 환경 : eclipse 2019-12, Oracle, tomcat

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