Proxool数据源在Spring中的配置

<?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:context="http://www.springframework.org/schema/context"
  xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd
            http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd">

  <context:property-placeholder
    location="classpath:db-connection.properties" />
  
  <!-- 国际化资源
  <bean id="messageSource"    
                class="org.springframework.context.support.ResourceBundleMessageSource">    
                <property name="basenames">    
                        <value>com/esc/message</value>    
                </property>    
        </bean>-->

  <bean id="dataSource"
    class="org.logicalcobwebs.proxool.ProxoolDataSource" destroy-method="">
    <property name="driver">
      <value>com.mysql.jdbc.Driver</value>
    </property>
    <!-- 这个属性也留到org.logicalcobwebs.proxool.ProxoolDataSource的getDriverUrl里去取了 -->
    <!--
    <property name="driverUrl">
    <value>${db.driverUrl}</value>
    -->
    <!--
    <value>jdbc:oracle:thin:newcrm/newcrm@192.88.88.36:1521:crmtest</value>
      <value>jdbc:oracle:thin:crm/crm@192.88.88.36:1521:crmtest</value>  
      <value>jdbc:oracle:thin:crm/crmdeng1234@(DESCRIPTION =
             (ADDRESS_LIST =
                 (ADDRESS = (PROTOCOL = TCP)(HOST = dddb1)(PORT = 1521))
                 (ADDRESS = (PROTOCOL = TCP)(HOST = dddb2)(PORT = 1521))
                 (LOAD_BALANCE = yes)
             )
                (CONNECT_DATA =
                 (SERVER = DEDICATED)
                 (SERVICE_NAME = ddcrm.domain.com)
                 (FAILOVER_MODE =
                     (TYPE = SELECT)
                     (METHOD = BASIC)
                     (RETRIES = 30)
                     (DELAY = 5)
                     )
                 )
             )
      </value>-->
    <!--
    </property>
    -->

    <property name="user">
      <value>${db.user}</value>
    </property>
    <property name="password">
      <value>${db.password}</value>
    </property>
    <property name="alias">
      <value>${db.alias}</value>
    </property>
    <property name="houseKeepingSleepTime">
      <value type="long">${db.houseKeepingSleepTime}</value>
    </property>
    <property name="prototypeCount">
      <value>${db.prototypeCount}</value>
    </property>
    <property name="maximumConnectionCount">
      <value>${db.maximumConnectionCount}</value>
    </property>
    <property name="minimumConnectionCount">
      <value>${db.minimumConnectionCount}</value>
    </property>
    <property name="trace">
      <value>${db.trace}</value>
    </property>
    <property name="verbose">
      <value>${db.verbose}</value>
    </property>
    <property name="maximumConnectionLifetime">
      <value>${db.maximumConnectionLifetime}</value>
    </property>
    <property name="simultaneousBuildThrottle">
      <value>${db.simultaneousBuildThrottle}</value>
    </property>
    <property name="recentlyStartedThreshold">
      <value>${db.recentlyStartedThreshold}</value>
    </property>
    <property name="overloadWithoutRefusalLifetime">
      <value>${db.overloadWithoutRefusalLifetime}</value>
    </property>
    <property name="statistics">
      <value>${db.statistics}</value>
    </property>
    <property name="statisticsLogLevel">
      <value>${db.statisticsLogLevel}</value>
    </property>
    <property name="maximumActiveTime">
      <value>${db.maximumActiveTime}</value>
    </property>

  </bean>
。。。
。。。

db-connection.properties的部分内容：

db.user=root
db.password=architect
#db.password=123456
db.alias=dataSource
#\u81ea\u52a8\u4fa6\u5bdf\u5404\u4e2a\u8fde\u63a5\u72b6\u6001\u7684\u65f6\u95f4\u95f4\u9694(\u6beb\u79d2),\u4fa6\u5bdf\u5230\u7a7a\u95f2\u7684\u8fde\u63a5\u5c31\u9a6c\u4e0a\u56de\u6536,\u8d85\u65f6\u7684\u9500\u6bc1 \u9ed8\u8ba430\u79d2\uff09
db.houseKeepingSleepTime=90000
#\u6700\u5c11\u4fdd\u6301\u7684\u7a7a\u95f2\u8fde\u63a5\u6570
db.prototypeCount=5
db.maximumConnectionCount=30
db.minimumConnectionCount=10
db.trace=true
db.verbose=true
#\u8fde\u63a5\u6700\u5927\u751f\u547d\u65f6\u95f4 \u9ed8\u8ba44\u5c0f\u65f6
db.maximumConnectionLifetime=14400000
#\u5141\u8bb8\u540c\u65f6\u65b0\u589e\u7684\u8fde\u63a5\u6570
db.simultaneousBuildThrottle=20
db.recentlyStartedThreshold=40000
db.overloadWithoutRefusalLifetime=50000
db.statistics=10s,1m,1d
db.statisticsLogLevel=ERROR
#\u8fde\u63a5\u6700\u5927\u6d3b\u52a8\u65f6\u95f4 \u9ed8\u8ba41\u5c0f\u65f6
db.maximumActiveTime=3600000
db.houseKeepingTestSql=select 1 from dual