MySQLNonTransientConnectionException: No operations allowed after connection closed

<Context>

<!-- Default set of monitored resources -->
<WatchedResource>WEB-INF/web.xml</WatchedResource>

<!-- Uncomment this to disable session persistence across Tomcat restarts -->
<!--
<Manager pathname="" />
-->

<!-- Uncomment this to enable Comet connection tacking (provides events
on session expiration as well as webapp lifecycle) -->
<!--
<Valve className="org.apache.catalina.valves.CometConnectionManagerValve" />
-->
<Resource name="jndi/mysql"
auth="Container"
type="javax.sql.DataSource"
driverClassName="com.mysql.jdbc.Driver"
url="jdbc:mysql://10.10.140.219:3306/cims_sit?useUnicode=true&amp;characterEncoding=UTF-8&amp;useOldAliasMetadataBehavior=true&amp;autoReconnect=true"
username="ceshi"
password="anbang@3008"
maxActive="50"
maxIdle="20"
minIdle="5"
maxWait="10000"/>

</Context>