Spring hibernate mysql No operations allowed after statement closed
sessionFactory spring中配置的sessionfactory代码 

<bean id="sessionFactory"

		class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">

		<property name="dataSource" ref="dataSource" />

		<property name="packagesToScan">

			<list>

				<value>com.wds.registration.model</value>

				<value>com.jmy.essay.model</value>

				<value>com.jmy.picture.model</value>

			</list>

		</property>

		<property name="hibernateProperties">

			<props>

				<prop key="hibernate.dialect">

					org.hibernate.dialect.MySQLDialect

				</prop>

				<prop key="hibernate.show_sql">true</prop>

				<prop key="hibernate.hbm2ddl.auto">update</prop>

			</props>

		</property>

	</bean>

后台有个调用

	public class JEssayLogic {

	

	private SessionFactory sessionFactory;



	

	public E_ML find(E_ML e_ML) {

		

		Session session = sessionFactory.openSession();

		

				Query query = session.createQuery("SQL...................");

				

				List l = query.list();

				

		session.close();

		sessionFactory.close();

		return e_ML;

	}



	

	}

 但是web程序连接长了  程序就会报

com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operations allowed after statement closed.

	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)

	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)

	at java.lang.reflect.Constructor.newInstance(Constructor.java:513)

	at com.mysql.jdbc.Util.handleNewInstance(Util.java:411)

	at com.mysql.jdbc.Util.getInstance(Util.java:386)

	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1015)

	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:989)

	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:975)

	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:920)

	at com.mysql.jdbc.StatementImpl.checkClosed(StatementImpl.java:461)

	at com.mysql.jdbc.StatementImpl.getMaxRows(StatementImpl.java:2216)

	at org.apache.commons.dbcp.DelegatingStatement.getMaxRows(DelegatingStatement.java:237)

	at org.hibernate.jdbc.AbstractBatcher.closeQueryStatement(AbstractBatcher.java:298)

	at org.hibernate.jdbc.AbstractBatcher.closeQueryStatement(AbstractBatcher.java:234)

	at org.hibernate.loader.Loader.getResultSet(Loader.java:1967)

	at org.hibernate.loader.Loader.doQuery(Loader.java:802)

	at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:274)

	at org.hibernate.loader.Loader.doList(Loader.java:2542)

	at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2276)

	at org.hibernate.loader.Loader.list(Loader.java:2271)

	at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:459)

	at org.hibernate.hql.ast.QueryTransla