insert error! Hibernate: select max(id) from st是什么问题???

Question

还是不行啊  郁闷了   id在我数据库里是bigint(8)
错误还是:Hibernate: select max(id) from st
st是我的表
我可以查询,但就不能插入.
请高手帮帮忙

Answer 1

我的id已经是主键了的.
用jb运行后没有别的错误提示,除了tomcat启动时的那些信息外就这一行:
Hibernate: select max(id) from st

Answer 2

现在多出现了两行信息:
Hibernate: select max(id) from stu
12:19:25,083 ERROR BasicPropertyAccessor:94 - IllegalArgumentException in class: dbtest2.Student, setter method of property: id
12:19:25,083 ERROR BasicPropertyAccessor:98 - expected type: int, actual value: java.lang.Long
请帮忙看看  谢谢

Answer 3

刚才有个小错误,改过后变这样了:
12:27:20,316 ERROR [debugjsp]:253 - Servlet.service() for servlet debugjsp threw exception
java.lang.NoSuchMethodError: dbtest2.Student.setId(I)V
at org.apache.jsp.jsp1_jsp._jspService(org.apache.jsp.jsp1_jsp:87)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:322)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:291)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:744)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
at java.lang.Thread.run(Thread.java:595)