properties 파일 읽어서 SP EL로 표현하기

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properties 파일 읽어서 SP EL로 표현하기

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1. util 태그를 사용하기 위해 spring-util 스키마 선언

<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:util="http://www.springframework.org/schema/util"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
                        http://www.springframework.org/schema/jdbc  http://www.springframework.org/schema/jdbc/spring-jdbc-3.0.xsd
                        http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.0.xsd">
    
	<!-- property configurer -->
	<util:properties id="jdbc" location="classpath:properties/jdbc.properties"/>
	<util:properties id="upload" location="classpath:properties/upload.properties"/>
    
</beans>

# jdbc.properties
jdbc.driver=oracle.jdbc.driver.OracleDriver
jdbc.url=jdbc:oracle:thin:@localhost:1521:moviestar
jdbc.username=scott
jdbc.password=tiger

#upload.properties
upload.path=D:/tomcat7/webapps/upload/

위와같이 util:properties만 설정해주면 xml, JAVA , JSP에서 속성값을 가져다 쓸 수 있음.

1. xml 사용

<!-- dataSource -->
<bean id="dataSourceSpied" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
     <property name="driverClassName" value="#{jdbc['jdbc.driver']}"/>
     <property name="url" value="#{jdbc['jdbc.url']}"/>
     <property name="username" value="#{jdbc['jdbc.username']}"/>
     <property name="password" value="#{jdbc['jdbc.password']}"/>
</bean>

2. JAVA 사용

@Value("#{upload['upload.path']}")
private String filePath;

3. JSP 사용

<%@ taglib prefix="spring" uri="http://www.springframework.org/tags"%>

<spring:eval var="uploadPath" expression="@upload['upload.path']"/>
${uploadPath}