Spring中配置和读取多个Properties文件的方式方法

database.url=jdbc:mysql://localhost/smaple database.driver=com.mysql.jdbc.Driver database.user=root database.password=123 

#congfig of ActiveMQ mq.java.naming.factory.initial=org.apache.activemq.jndi.ActiveMQInitialContextFactory mq.java.naming.provider.url=failover:(tcp://localhost:61616?soTimeout=30000&connectionTimeout=30000)?jms.useAsyncSend=true&timeout=30000 mq.java.naming.security.principal= mq.java.naming.security.credentials= jms.MailNotifyQueue.consumer=5 

remote.ip=localhost remote.port=16800 remote.serviceName=test 

<?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-3.0.xsd">      <!-- 将多个配置文件读取到容器中，交给Spring管理 -->   <bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">     <property name="locations">       <list>        <!-- 这里支持多种寻址方式：classpath和file -->        <value>classpath:/opt/demo/config/demo-db.properties</value>        <!-- 推荐使用file的方式引入，这样可以将配置和代码分离 -->        <value>file:/opt/demo/config/demo-mq.properties</value>        <value>file:/opt/demo/config/demo-remote.properties</value>       </list>     </property>   </bean>      <!-- 使用MQ中的配置 -->   <bean id="MQJndiTemplate" class="org.springframework.jndi.JndiTemplate">     <property name="environment">       <props>         <prop key="java.naming.factory.initial">${mq.java.naming.factory.initial}</prop>         <prop key="java.naming.provider.url">${mq.java.naming.provider.url}</prop>         <prop key="java.naming.security.principal">${mq.java.naming.security.principal}</prop>         <prop key="java.naming.security.credentials">${mq.java.naming.security.credentials}</prop>         <prop key="userName">${mq.java.naming.security.principal}</prop>         <prop key="password">${mq.java.naming.security.credentials}</prop>       </props>     </property>   </bean> </beans> 

<?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-3.0.xsd">      <!-- 将多个配置文件位置放到列表中 -->   <bean id="propertyResources" class="java.util.ArrayList">     <constructor-arg>       <list>        <!-- 这里支持多种寻址方式：classpath和file -->        <value>classpath:/opt/demo/config/demo-db.properties</value>        <!-- 推荐使用file的方式引入，这样可以将配置和代码分离 -->        <value>file:/opt/demo/config/demo-mq.properties</value>        <value>file:/opt/demo/config/demo-remote.properties</value>       </list>     </constructor-arg>   </bean>      <!-- 将配置文件读取到容器中，交给Spring管理 -->   <bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">     <property name="locations" ref="propertyResources" />   </bean>      <!-- 使用MQ中的配置 -->   <bean id="MQJndiTemplate" class="org.springframework.jndi.JndiTemplate">     <property name="environment">       <props>         <prop key="java.naming.factory.initial">${mq.java.naming.factory.initial}</prop>         <prop key="java.naming.provider.url">${mq.java.naming.provider.url}</prop>         <prop key="java.naming.security.principal">${mq.java.naming.security.principal}</prop>         <prop key="java.naming.security.credentials">${mq.java.naming.security.credentials}</prop>         <prop key="userName">${mq.java.naming.security.principal}</prop>         <prop key="password">${mq.java.naming.security.credentials}</prop>       </props>     </property>   </bean> </beans> 

<?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:p="http://www.springframework.org/schema/p"   xsi:schemaLocation="   http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">      <!-- 将DB属性配置文件位置放到列表中 -->   <bean id="dbResources" class="java.util.ArrayList">     <constructor-arg>     <list>       <value>file:/opt/demo/config/demo-db.properties</value>     </list>     </constructor-arg>   </bean>    <!-- 将MQ属性配置文件位置放到列表中 -->   <bean id="mqResources" class="java.util.ArrayList">     <constructor-arg>     <list>       <value>file:/opt/demo/config/demo-mq.properties</value>     </list>     </constructor-arg>   </bean>      <!-- 用Spring加载和管理DB属性配置文件 -->   <bean id="dbPropertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">     <property name="order" value="1" />     <property name="ignoreUnresolvablePlaceholders" value="true" />      <property name="locations" ref="dbResources" />   </bean>      <!-- 用Spring加载和管理MQ属性配置文件 -->   <bean id="mqPropertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">     <property name="order" value="2" />     <property name="ignoreUnresolvablePlaceholders" value="true" />      <property name="locations" ref="mqResources" />   </bean>      <!-- 使用DB中的配置属性 -->   <bean id="rmsDataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"      p:driverClassName="${demo.db.driver}" p:url="${demo.db.url}" p:username="${demo.db.username}"      p:password="${demo.db.password}" pp:maxActive="${demo.db.maxactive}"p:maxWait="${demo.db.maxwait}"      p:poolPreparedStatements="true" p:defaultAutoCommit="false">   </bean>      <!-- 使用MQ中的配置 -->   <bean id="MQJndiTemplate" class="org.springframework.jndi.JndiTemplate">     <property name="environment">       <props>         <prop key="java.naming.factory.initial">${mq.java.naming.factory.initial}</prop>         <prop key="java.naming.provider.url">${mq.java.naming.provider.url}</prop>         <prop key="java.naming.security.principal">${mq.java.naming.security.principal}</prop>         <prop key="java.naming.security.credentials">${mq.java.naming.security.credentials}</prop>         <prop key="userName">${mq.java.naming.security.principal}</prop>         <prop key="password">${mq.java.naming.security.credentials}</prop>       </props>     </property>   </bean> </beans> 

public class Client() {   private String ip;   private String port;   private String service; } 

<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="<a href="http://www.springframework.org/schema/beans" rel="external nofollow" rel="external nofollow" >http://www.springframework.org/schema/beans</a>"  xmlns:xsi="<a href="http://www.w3.org/2001/XMLSchema-instance" rel="external nofollow" >http://www.w3.org/2001/XMLSchema-instance</a>"  xmlns:util="<a href="http://www.springframework.org/schema/util" rel="external nofollow" rel="external nofollow" >http://www.springframework.org/schema/util</a>"  xsi:schemaLocation="  <a href="http://www.springframework.org/schema/beans" rel="external nofollow" rel="external nofollow" >http://www.springframework.org/schema/beans</a> <a href="http://www.springframework.org/schema/beans/spring-beans-3.0.xsd" rel="external nofollow" >http://www.springframework.org/schema/beans/spring-beans-3.0.xsd</a>  <a href="http://www.springframework.org/schema/util" rel="external nofollow" rel="external nofollow" >http://www.springframework.org/schema/util</a> <a href="http://www.springframework.org/schema/util/spring-util-3.0.xsd" rel="external nofollow" >http://www.springframework.org/schema/util/spring-util-3.0.xsd</a>">    <!-- 这种加载方式可以在代码中通过@Value注解进行注入,   可以将配置整体赋给Properties类型的类变量，也可以取出其中的一项赋值给String类型的类变量 -->  <!-- <util:properties/> 标签只能加载一个文件，当多个属性文件需要被加载的时候，可以使用多个该标签 -->  <util:properties id="remoteSettings" location="file:/opt/demo/config/demo-remote.properties" />     <!-- <util:properties/> 标签的实现类是PropertiesFactoryBean，  直接使用该类的bean配置，设置其locations属性可以达到一个和上面一样加载多个配置文件的目的 -->  <bean id="settings"    class="org.springframework.beans.factory.config.PropertiesFactoryBean">   <property name="locations">  <list>   <value>file:/opt/rms/config/rms-mq.properties</value>   <value>file:/opt/rms/config/rms-env.properties</value>  </list>   </property>  </bean> </beans> 

import org.springframework.beans.factory.annotation.Value;  public class Client() {   @Value("#{remoteSettings['remote.ip']}")   private String ip;   @Value("#{remoteSettings['remote.port']}")   private String port;   @Value("#{remoteSettings['remote.serviceName']}")   private String service; } 

import org.springframework.beans.factory.annotation.Value; import org.springframework.beans.factory.annotation.Autowired;  public class Client() {   @Value("#{remoteSettings}")   private Properties remoteSettings; } 

<?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-3.0.xsd">      <!-- 可以使用如下的方式声明Properties类型的FactoryBean来加载配置文件，这种方式就只能当做Properties属性注入，而不能获其中具体的值 -->   <bean id="remoteConfigs" class="org.springframework.beans.factory.config.PropertiesFactoryBean">     <property name="locations">       <list>         <value>file:/opt/demo/config/demo-remote.properties</value>       </list>     </property>   </bean>      <!-- 远端调用客户端类 -->   <bean id="client" class="com.demo.remote.Client">     <property name="properties" ref="remoteConfigs" />   </bean> </beans> 

import org.springframework.beans.factory.annotation.Autowired;  public class Client() {   //@Autowired也可以使用   private Properties remoteSettings;      //getter setter } 

<context:property-placeholder location="file:///${CONFIG_PATH}/*.properties" />

<context:property-placeholder location="classpath*:/*.properties"/>