applicationContext.xml读取properties中属性

applicationContext.xml读取properties中属性

两种方法：

1、

<beans xmlns="http://www.springframework.org/schema/beans"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xmlns:context="http://www.springframework.org/schema/context"
 xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd">
 
 <context:property-placeholder location="classpath:uc.properties" />
 <!-- 
 <bean id="configBean"
     class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
     <property name="locations">
     <value>uc.properties</value>
     </property>
 </bean>
 -->

2、

<bean id="configBean"
    class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
    <property name="location">
     <value>hello.properties</value>
    </property>
</bean>

引用：

<property name="list">
     <list>
      <value>aaa</value>
      <value>${name}</value>
      <ref bean="date" />
     </list>
    </property>

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如果有多个.properties档案，则可以透过locations属性来设定，例如：

• beans-config.xml

<?xml version="1.0" encoding="UTF-8"?> 
<!DOCTYPE beans PUBLIC "-//SPRING/DTD BEAN/EN" 
   "http://www.springframework.org/dtd/spring-beans.dtd"> 

<beans>  
     <bean id="configBean" 
   class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"> 
         <property name="locations"> 
             <list>
                 <value>hello.properties</value> 
                 <value>welcome.properties</value> 
                 <value>other.properties</value> 
    
             </list>
         </property>     
     </bean> 

     <bean id="helloBean" class="onlyfun.caterpillar.HelloBean"> 
         <property name="helloWord"> 
             <value>${onlyfun.caterpillar.helloWord}</value> 
         </property> 
         ...
     </bean>
</beans>