[Spring2.5] 외부 설정 프로퍼티 적용하기

 ● Spring2.5에서 설정 프로퍼티 적용할때
<context:property-placeholder location="***" /> 태그를 사용


예)

system.properies

###########################################################
# properties 적용 테스트
###########################################################
jdbc.driverClassName=oracle.jdbc.driver.OracleDriver
jdbc.url=jdbc:oracle:thin:@123.140.245.3:1521:MASATO
jdbc.username=oracle
jdbc.password=wjdqh*
jdbc.initialSize=1
jdbc.maxActive=10
jdbc.maxIdle=10

위의 property 파일을 spring에 설정 파일에서 적용 한다면

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xmlns:aop="http://www.springframework.org/schema/aop"
  xmlns:context="http://www.springframework.org/schema/context"
  xmlns:tx="http://www.springframework.org/schema/tx"
  xmlns:p="http://www.springframework.org/schema/p"
  xmlns:jee="http://www.springframework.org/schema/jee"
  xmlns:util="http://www.springframework.org/schema/util"
  xsi:schemaLocation="http://www.springframework.org/schema/beans
                                 http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
                                 http://www.springframework.org/schema/context 
                           http://www.springframework.org/schema/context/spring-context-2.5.xsd
                                 http://www.springframework.org/schema/aop
                                 http://www.springframework.org/schema/aop/spring-aop-2.5.xsd
                                 http://www.springframework.org/schema/tx
                                 http://www.springframework.org/schema/tx/spring-tx-2.5.xsd
                                 http://www.springframework.org/schema/jee
                                 http://www.springframework.org/schema/jee/spring-jee-2.5.xsd
                                 http://www.springframework.org/schema/util
                                 http://www.springframework.org/schema/util/spring-util-2.5.xsd">
      
 <description>system</description>
 
 <context:component-scan base-package="kr.forhuman.core.web.page" />
  <context:property-placeholder location="classpath:system.properties"/>

 <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
        <property name="driverClassName"><value>${jdbc.driverClassName}</value></property>
        <property name="url"><value>${jdbc.url}</value></property>
        <property name="username"><value>${jdbc.username}</value></property>
        <property name="password"><value>${jdbc.password}</value></property>
        <property name="initialSize"><value>${jdbc.initialSize}</value></property>
        <property name="maxActive"><value>${jdbc.maxActive}</value></property>   
        <property name="maxIdle"><value>${jdbc.maxIdle}</value></property>
 </bean> 
  .............

적용할 프로퍼티 파일이 여러개 일 경우
<context:property-placeholder location="classpath:system.properties,classpath:system2.properties"/>