请教高手！！定时从sqlserver2008取数据的问题，困惑许久了！！

请教高手！！定时从sqlserver2008取数据的问题，困惑许久了！！我是定时（每隔2s）从sqlserver2008取数据，运行一段时间之后，就报这个错，服务就停止了。

82298841 [Timer-0] WARN org.hibernate.util.JDBCExceptionReporter - SQL Error: 0,
SQLState: 08S01
82298841 [Timer-0] ERROR org.hibernate.util.JDBCExceptionReporter - I/O Error: C
onnection reset
82298841 [Timer-0] WARN org.hibernate.util.JDBCExceptionReporter - SQL Error: 0,
SQLState: HY010
82298841 [Timer-0] ERROR org.hibernate.util.JDBCExceptionReporter - Invalid stat
e, the Connection object is closed.
82298841 [Timer-0] WARN org.hibernate.util.JDBCExceptionReporter - SQL Error: 0,
SQLState: HY010
82298841 [Timer-0] ERROR org.hibernate.util.JDBCExceptionReporter - Invalid stat
e, the Connection object is closed.
Exception in thread "Timer-0" org.hibernate.exception.JDBCConnectionException: c
ould not execute query
        at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.j
ava:99)
        at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelp
er.java:66)
        at org.hibernate.loader.Loader.doList(Loader.java:2536)
        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:452)
        at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.ja
va:363)
        at org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java
:196)
        at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1268)
        at org.hibernate.impl.QueryImpl.list(QueryImpl.java:102)
        at cn.doconline.sms.dao.SimpleDaoImpl.query(SimpleDaoImpl.java:63)
        at cn.doconline.sms.dao.SimpleDaoImpl$$FastClassByCGLIB$$ec0ba649.invoke
(<generated>)
        at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
        at org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocatio
n.invokeJoinpoint(Cglib2AopProxy.java:688)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(
ReflectiveMethodInvocation.java:150)
        at org.springframework.transaction.interceptor.TransactionInterceptor.in
voke(TransactionInterceptor.java:110)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(
ReflectiveMethodInvocation.java:172)
        at org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterc
eptor.intercept(Cglib2AopProxy.java:621)
        at cn.doconline.sms.dao.SimpleDaoImpl$$EnhancerByCGLIB$$8c403fc6.query(<
generated>)
        at cn.doconline.sms.analyze.engine.MessageReadTask.readMessage(MessageRe
adTask.java:51)
        at cn.doconline.sms.analyze.engine.MessageReadTask.run(MessageReadTask.j
ava:36)
        at java.util.TimerThread.mainLoop(Timer.java:512)
        at java.util.TimerThread.run(Timer.java:462)
Caused by: java.sql.SQLException: I/O Error: Connection reset
        at net.sourceforge.jtds.jdbc.TdsCore.executeSQL(TdsCore.java:1053)
        at net.sourceforge.jtds.jdbc.TdsCore.submitSQL(TdsCore.java:899)
        at net.sourceforge.jtds.jdbc.ConnectionJDBC2.setAutoCommit(ConnectionJDB
C2.java:2259)
        at org.enhydra.jdbc.core.CoreConnection.setAutoCommit(CoreConnection.jav
a:234)
        at org.enhydra.jdbc.standard.StandardXAConnectionHandle.setAutoCommit(St
andardXAConnectionHandle.java:125)
        at org.enhydra.jdbc.standard.StandardXAConnectionHandle.prepareStatement
(StandardXAConnectionHandle.java:287)
        at org.enhydra.jdbc.standard.StandardXAConnectionHandle.prepareStatement
(StandardXAConnectionHandle.java:255)
        at org.hibernate.jdbc.AbstractBatcher.getPreparedStatement(AbstractBatch
er.java:534)
        at org.hibernate.jdbc.AbstractBatcher.getPreparedStatement(AbstractBatch
er.java:452)
        at org.hibernate.jdbc.AbstractBatcher.prepareQueryStatement(AbstractBatc
her.java:161)
        at org.hibernate.loader.Loader.prepareQueryStatement(Loader.java:1700)
        at org.hibernate.loader.Loader.doQuery(Loader.java:801)
        at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Lo
ader.java:274)
        at org.hibernate.loader.Loader.doList(Loader.java:2533)
        ... 20 more
Caused by: java.net.SocketException: Connection reset
        at java.net.SocketInputStream.read(SocketInputStream.java:168)
        at java.io.DataInputStream.readFully(DataInputStream.java:178)
        at java.io.DataInputStream.readFully(DataInputStream.java:152)
        at net.sourceforge.jtds.jdbc.SharedSocket.readPacket(SharedSocket.java:8
42)
        at net.sourceforge.jtds.jdbc.SharedSocket.getNetPacket(SharedSocket.java
:723)
        at net.sourceforge.jtds.jdbc.ResponseStream.getPacket(ResponseStream.jav
a:466)
        at net.sourceforge.jtds.jdbc.ResponseStream.read(ResponseStream.java:103
)
        at net.sourceforge.jtds.jdbc.ResponseStream.peek(ResponseStream.java:88)

        at net.sourceforge.jtds.jdbc.TdsCore.wait(TdsCore.java:3932)
        at net.sourceforge.jtds.jdbc.TdsCore.executeSQL(TdsCore.java:1046)
        ... 33 more