java.lang.ClassCastException:java.lang.Long不能转换为java.lang.Integer(在hibernate中获取计数时)
我想在某种情况下使用hibernate获取行数,所以我尝试在下面的查询中获取行数java.lang.ClassCastException:java.lang.Long不能转换为java.lang.Integer(在hibernate中获取计数时),hibernate,count,Hibernate,Count,我想在某种情况下使用hibernate获取行数,所以我尝试在下面的查询中获取行数 public int getBirthDayNotificationsCount() { int birthDayCount=0; try { currentSession = sessionFactory.getCurrentSession(); query = currentSession.createQuery(" SELEC
public int getBirthDayNotificationsCount() {
int birthDayCount=0;
try {
currentSession = sessionFactory.getCurrentSession();
query = currentSession.createQuery(" SELECT count(*) FROM StudentDetails WHERE DATE_FORMAT(dateOfBirth,'%m-%d') = DATE_FORMAT(NOW(),'%m-%d')");
birthDayCount= (int) query.uniqueResult();
}catch (Exception e) {
e.printStackTrace();
}
return birthDayCount;
}
当我将对象强制转换为整数时,上面的查询返回该对象,我得到以下异常
java.lang.ClassCastException: java.lang.Long cannot be cast to java.lang.Integer
at com.rasvek.cms.dao.MasterDaoImpl.getBirthDayNotificationsCount(MasterDaoImpl.java:3852)
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.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:333)
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
at org.springframework.aop.framework.adapter.MethodBeforeAdviceInterceptor.invoke(MethodBeforeAdviceInterceptor.java:52)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.framework.adapter.AfterReturningAdviceInterceptor.invoke(AfterReturningAdviceInterceptor.java:52)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:213)
at com.sun.proxy.$Proxy1675.getBirthDayNotificationsCount(Unknown Source)
at com.rasvek.cms.service.MasterSeviceImpl.getBirthDayNotificationsCount(MasterSeviceImpl.java:898)
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.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:333)
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
at org.springframework.aop.framework.adapter.MethodBeforeAdviceInterceptor.invoke(MethodBeforeAdviceInterceptor.java:52)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.framework.adapter.AfterReturningAdviceInterceptor.invoke(AfterReturningAdviceInterceptor.java:52)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99)
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:282)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:213)
at com.sun.proxy.$Proxy1676.getBirthDayNotificationsCount(Unknown Source)
at com.rasvek.cms.controller.StudentController.getNotificationsCount(StudentController.java:1971)
at com.rasvek.cms.controller.StudentController$$FastClassBySpringCGLIB$$cb2af793.invoke(<generated>)
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:738)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
at org.springframework.aop.framework.adapter.MethodBeforeAdviceInterceptor.invoke(MethodBeforeAdviceInterceptor.java:52)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.framework.adapter.AfterReturningAdviceInterceptor.invoke(AfterReturningAdviceInterceptor.java:52)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:673)
at com.rasvek.cms.controller.StudentController$$EnhancerBySpringCGLIB$$e70eb432.getNotificationsCount(<generated>)
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.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:133)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:97)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:967)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:292)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:528)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1100)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:687)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1520)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1476)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Unknown Source)
java.lang.ClassCastException:java.lang.Long不能转换为java.lang.Integer
位于com.rasvek.cms.dao.MasterDaoImpl.getBirthDayNotificationsCount(MasterDaoImpl.java:3852)
在sun.reflect.NativeMethodAccessorImpl.invoke0(本机方法)处
位于sun.reflect.NativeMethodAccessorImpl.invoke(未知源)
在sun.reflect.DelegatingMethodAccessorImpl.invoke处(未知源)
位于java.lang.reflect.Method.invoke(未知源)
位于org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:333)
位于org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190)
在org.springframework.aop.framework.ReflectiveMethodInvocation.procedue(ReflectiveMethodInvocation.java:157)上
位于org.springframework.aop.framework.adapter.MethodBeforeAdviceInterceptor.invoke(MethodBeforeAdviceInterceptor.java:52)
在org.springframework.aop.framework.ReflectiveMethodInvocation.procedue(ReflectiveMethodInvocation.java:179)上
位于org.springframework.aop.framework.adapter.AfterReturningAdviceInterceptor.invoke(AfterReturningAdviceInterceptor.java:52)
在org.springframework.aop.framework.ReflectiveMethodInvocation.procedue(ReflectiveMethodInvocation.java:179)上
位于org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92)
在org.springframework.aop.framework.ReflectiveMethodInvocation.procedue(ReflectiveMethodInvocation.java:179)上
位于org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:213)
在com.sun.proxy.$Proxy1675.getbirthdaynotificationscont(未知来源)
在com.rasvek.cms.service.MasterSeviceImpl.getbirthdaynotificationscont(MasterSeviceImpl.java:898)
在sun.reflect.NativeMethodAccessorImpl.invoke0(本机方法)处
位于sun.reflect.NativeMethodAccessorImpl.invoke(未知源)
在sun.reflect.DelegatingMethodAccessorImpl.invoke处(未知源)
位于java.lang.reflect.Method.invoke(未知源)
位于org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:333)
位于org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190)
在org.springframework.aop.framework.ReflectiveMethodInvocation.procedue(ReflectiveMethodInvocation.java:157)上
位于org.springframework.aop.framework.adapter.MethodBeforeAdviceInterceptor.invoke(MethodBeforeAdviceInterceptor.java:52)
在org.springframework.aop.framework.ReflectiveMethodInvocation.procedue(ReflectiveMethodInvocation.java:179)上
位于org.springframework.aop.framework.adapter.AfterReturningAdviceInterceptor.invoke(AfterReturningAdviceInterceptor.java:52)
在org.springframework.aop.framework.ReflectiveMethodInvocation.procedue(ReflectiveMethodInvocation.java:179)上
位于org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99)
位于org.springframework.transaction.interceptor.TransactionSpectSupport.invokeWithinTransaction(TransactionSpectSupport.java:282)
位于org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)
在org.springframework.aop.framework.ReflectiveMethodInvocation.procedue(ReflectiveMethodInvocation.java:179)上
位于org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92)
在org.springframework.aop.framework.ReflectiveMethodInvocation.procedue(ReflectiveMethodInvocation.java:179)上
位于org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:213)
在com.sun.proxy.$Proxy1676.getbirthdaynotificationscont(未知来源)
位于com.rasvek.cms.controller.StudentController.getNotificationsCount(StudentController.java:1971)
在com.rasvek.cms.controller.StudentController$$FastClassBySpringCGLIB$$cb2af793.invoke()上
位于org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
位于org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:738)
在org.springframework.aop.framework.ReflectiveMethodInvocation.procedue(ReflectiveMethodInvocation.java:157)上
位于org.springframework.aop.framework.adapter.MethodBeforeAdviceInterceptor.invoke(MethodBeforeAdviceInterceptor.java:52)
在org.springframework.aop.framework.ReflectiveMethodInvocation.procedue(ReflectiveMethodInvocation.java:179)上
位于org.springframework.aop.framework.adapter.AfterReturningAdviceInterceptor.invoke(AfterReturningAdviceInterceptor.java:52)
在org.springframework.aop.framework.ReflectiveMethodInvocation.procedue(ReflectiveMethodInvocation.java:179)上
位于org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92)
在org.springframework.aop.framework.ReflectiveMethodInvocation.procedue(ReflectiveMethodInvocation.java:179)上
位于org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:673)
在com.rasvek.cms.controller.StudentController$$EnhancerBySpringCGLIB$$e70eb432.getnotificationscont()上
在sun.reflect.NativeMethodAccessorImpl.invoke0(本机方法)处
位于sun.reflect.NativeMethodAccessorImpl.invoke(未知源)
在sun.reflect.DelegatingMethodAccessorImpl.invoke处(未知源)
位于java.lang.reflect.Method.invoke(未知源)
位于org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205)
位于org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethodo