<!-- Connection Pooling Info 
			<property name="maxIdle" value="${dbcp.maxIdle}" />
			<property name="maxActive" value="${dbcp.maxActive}" />
			<property name="defaultAutoCommit" value="true" />
			<property name="timeBetweenEvictionRunsMillis" value="3600000" />
			<property name="minEvictableIdleTimeMillis" value="3600000" />
--> 去除数据库连接池