Hibernate的一个异常，朋友们进来帮忙

org.hibernate.QueryParameterException: could not locate named parameter [limit]
at org.hibernate.engine.query.ParameterMetadata.getNamedParameterDescriptor(ParameterMetadata.java:99)
at org.hibernate.engine.query.ParameterMetadata.getNamedParameterExpectedType(ParameterMetadata.java:105)
at org.hibernate.impl.AbstractQueryImpl.determineType(AbstractQueryImpl.java:437)
at org.hibernate.impl.AbstractQueryImpl.setParameter(AbstractQueryImpl.java:407)
at org.springframework.orm.hibernate3.HibernateTemplate.applyNamedParameterToQuery(HibernateTemplate.java:1246)
at org.springframework.orm.hibernate3.HibernateTemplate$31.doInHibernate(HibernateTemplate.java:944)
at org.springframework.orm.hibernate3.HibernateTemplate$31.doInHibernate(HibernateTemplate.java:1)
at org.springframework.orm.hibernate3.HibernateTemplate.doExecute(HibernateTemplate.java:406)
at org.springframework.orm.hibernate3.HibernateTemplate.executeWithNativeSession(HibernateTemplate.java:374)
at org.springframework.orm.hibernate3.HibernateTemplate.findByNamedParam(HibernateTemplate.java:938)
at com.unis.contract.dao.ShouwenDao.getShouwen(ShouwenDao.java:42)
at com.unis.contract.service.ShouwenManager.getShouwen(ShouwenManager.java:30)
at com.unis.contract.service.ShouwenManager$$FastClassByCGLIB$$68c1221f.invoke(<generated>)
at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)
at org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:692)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:107)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:625)
at com.unis.contract.service.ShouwenManager$$EnhancerByCGLIB$$40b3cb6.getShouwen(<generated>)
at com.unis.contract.controller.ShouwenController.findShouwen(ShouwenController.java:45)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.springframework.web.servlet.mvc.multiaction.MultiActionController.invokeNamedMethod(MultiActionController.java:471)
at org.springframework.web.servlet.mvc.multiaction.MultiActionController.handleRequestInternal(MultiActionController.java:408)
at org.springframework.web.servlet.mvc.AbstractController.handleRequest(AbstractController.java:153)
at org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:48)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:771)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:716)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:647)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:563)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
at org.extremecomponents.table.filter.AbstractExportFilter.doFilter(AbstractExportFilter.java:49)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
at org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:198)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:874)
at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
at java.lang.Thread.run(Unknown Source)
2010-3-11 9:21:15 org.apache.catalina.core.StandardContext reload
信息: Reloading this Context has started
2010-3-11 9:21:16 org.apache.catalina.loader.WebappClassLoader validateJarFile
信息: validateJarFile(D:\Eclipse workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp1\wtpwebapps\framework\WEB-INF\lib\jsp-api.jar) - jar not loaded. See Servlet Spec 2.3, section 9.7.2. Offending class: javax/servlet/jsp/JspPage.class
2010-3-11 9:21:16 org.apache.catalina.loader.WebappClassLoader validateJarFile
信息: validateJarFile(D:\Eclipse workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp1\wtpwebapps\framework\WEB-INF\lib\servlet-api.jar) - jar not loaded. See Servlet Spec 2.3, section 9.7.2. Offending class: javax/servlet/Servlet.class
以上是异常信息，下面是我的dao 里写的方法，请高手指点一下，先谢谢了
public List<ShouwenBean> getShouwen(Map filters){
filters.put("id", "abcdefghijklmnopqrstuvwxyz");
filters.put("doctype", "r");
filters.put("userid", "zhangsan");
filters.put("adminid", "huoyj");
ShouwenBean sb = new ShouwenBean();
StringBuffer xsql = sb.getSearchSQL(getHibernateTemplate(), sb);
int size = filters.size();
String[] param = new String[size];
Object[] values = new Object[size];
Set<String> keySet = filters.keySet();
int i = 0;
for (String key : keySet) {
param[i] = key;
values[i] = filters.get(key);
++i;
}
String hql = Util.execSQL(xsql, filters);
System.out.println("ShouwenDao----"+hql);
if(size > 0){
return getHibernateTemplate().findByNamedParam(hql, param, values);
}else{
return getHibernateTemplate().find(hql);
}