原文地址：http://www.iteye.com/magazines/90

  <property name="url"value="${jdbc_url}" />

  <property name="username"value="${jdbc_user}" />

  <property name="password"value="${jdbc_password}" />

   

  <property name="filters"value="stat" />

  <property name="maxActive"value="20" />

  <property name="initialSize"value="1" />

  <property name="maxWait"value="60000" />

  <property name="minIdle"value="1" />

  <propertyname="timeBetweenEvictionRunsMillis" value="60000"/>

  <propertyname="minEvictableIdleTimeMillis" value="300000"/>

  <property name="validationQuery"value="SELECT 'x'" />

  <property name="testWhileIdle"value="true" />

  <property name="testOnBorrow"value="false" />

  <property name="testOnReturn"value="false" />

   

  <propertyname="poolPreparedStatements" value="true" />

  <propertyname="maxPoolPreparedStatementPerConnectionSize" value="50"/>

</bean>

http://code.alibabatech.com/wiki/display/Druid/Documentation