请问如下的错误是什么原因引起的，有什么解决的方法吗？
（本人是菜鸟，不太明白哈SQLServer 2000 ，现急需高手指点，谢谢了）
java.sql.SQLException: [Microsoft][SQLServer 2000 Driver for JDBC]Object has been closed.
错误:java.sql.SQLException: [Microsoft][SQLServer 2000 Driver for JDBC]Object has been closed.
at com.microsoft.jdbc.base.BaseExceptions.createException(Unknown Source)
at com.microsoft.jdbc.base.BaseExceptions.getException(Unknown Source)
at com.microsoft.jdbc.base.BaseStatement.validateClosedState(Unknown Source)
at com.microsoft.jdbc.base.BaseResultSet.validateClosedState(Unknown Source)
at com.microsoft.jdbc.base.BaseResultSet.commonFetchInitialize(Unknown Source)
at com.microsoft.jdbc.base.BaseResultSet.previous(Unknown Source)
at org.apache.commons.dbcp.DelegatingResultSet.previous(DelegatingResultSet.java:340)
at org.apache.jsp.read.reader_jsp._jspService(reader_jsp.java:154)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)