Java 请求处理失败；嵌套异常为org.hibernate.exception.ConstraintViolationException:无法执行JDBC批处理更新_Java_Hibernate_H2

Java 请求处理失败；嵌套异常为org.hibernate.exception.ConstraintViolationException:无法执行JDBC批处理更新

java hibernate

Java 请求处理失败；嵌套异常为org.hibernate.exception.ConstraintViolationException:无法执行JDBC批处理更新,java,hibernate,h2,Java,Hibernate,H2,这是我关于stackoverflow的第一篇文章！但我是UIO的硕士生，所以我不是在得到很多帮助（如果你愿意的话）之后，而是一个指向我可以更好地理解问题的方向的指针！如果你不喜欢我展示问题的方式，那么请评论一下，下次会更好 HTTP Status 500 - Request processing failed; nested exception is org.hibernate.exception.ConstraintViolationException: Could not execute J

这是我关于stackoverflow的第一篇文章！但我是UIO的硕士生，所以我不是在得到很多帮助（如果你愿意的话）之后，而是一个指向我可以更好地理解问题的方向的指针！如果你不喜欢我展示问题的方式，那么请评论一下，下次会更好

HTTP Status 500 - Request processing failed; nested exception is org.hibernate.exception.ConstraintViolationException: Could not execute JDBC batch update

type Exception report

message Request processing failed; nested exception is org.hibernate.exception.ConstraintViolationException: Could not execute JDBC batch update

description The server encountered an internal error that prevented it from fulfilling this request.

exception

org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.hibernate.exception.ConstraintViolationException: Could not execute JDBC batch update
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:948)
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:827)
javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)
javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)
org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:233)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)

root cause

org.hibernate.exception.ConstraintViolationException: Could not execute JDBC batch update
org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:96)
org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66)
org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:275)
org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:263)
org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:180)
org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:321)
org.hibernate.event.def.DefaultAutoFlushEventListener.onAutoFlush(DefaultAutoFlushEventListener.java:64)
org.hibernate.impl.SessionImpl.autoFlushIfRequired(SessionImpl.java:1175)
org.hibernate.impl.SessionImpl.list(SessionImpl.java:1251)
org.hibernate.impl.QueryImpl.list(QueryImpl.java:102)
no.uio.inf5750.assignment2.dao.hibernate.HibernateStudentDao.getAllStudents(HibernateStudentDao.java:54)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
java.lang.reflect.Method.invoke(Method.java:606)
org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)
org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:96)
org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:260)
org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:94)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
com.sun.proxy.$Proxy13.getAllStudents(Unknown Source)
no.uio.inf5750.assignment2.service.impl.DefaultStudentSystem.getAllStudents(DefaultStudentSystem.java:168)
no.uio.inf5750.assignment2.gui.controller.ApiController.jsonAddLocation(ApiController.java:40)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
java.lang.reflect.Method.invoke(Method.java:606)
org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)
org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)
org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)
org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:827)
javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)
javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)
org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:233)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)

root cause

org.h2.jdbc.JdbcBatchUpdateException: Unique index or primary key violation: "CONSTRAINT_INDEX_BA ON PUBLIC.STUDENT(LATITUDE)"; SQL statement:
update student set name=?, latitude=?, longitude=? where student_id=? [23001-136]
    org.h2.jdbc.JdbcPreparedStatement.executeBatch(JdbcPreparedStatement.java:1098)
 com.mchange.v2.c3p0.impl.NewProxyPreparedStatement.executeBatch(NewProxyPreparedStatement.java:1723)
org.hibernate.jdbc.BatchingBatcher.doExecuteBatch(BatchingBatcher.java:70)
org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:268)
org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:263)
org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:180)
  org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:321)
 org.hibernate.event.def.DefaultAutoFlushEventListener.onAutoFlush(DefaultAutoFlushEventListener.java:64)
org.hibernate.impl.SessionImpl.autoFlushIfRequired(SessionImpl.java:1175)
org.hibernate.impl.SessionImpl.list(SessionImpl.java:1251)
org.hibernate.impl.QueryImpl.list(QueryImpl.java:102)
 no.uio.inf5750.assignment2.dao.hibernate.HibernateStudentDao.getAllStudents(HibernateStudentDao.java:54)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
java.lang.reflect.Method.invoke(Method.java:606)
 org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)
 org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)
 org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
 org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:96)
 org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:260)
org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:94)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
com.sun.proxy.$Proxy13.getAllStudents(Unknown Source)
no.uio.inf5750.assignment2.service.impl.DefaultStudentSystem.getAllStudents(DefaultStudentSystem.java:168)
no.uio.inf5750.assignment2.gui.controller.ApiController.jsonAddLocation(ApiController.java:40)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
java.lang.reflect.Method.invoke(Method.java:606)
org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)
org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)
org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)
org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:827)
javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)
javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)
org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:233)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)

从stacktrace：

no.uio.inf5750.assignment2.dao.hibernate.HibernateStudentDao.getAllStudents（HibernateStudentDao.java:54）

守则：

public Collection<Student> getAllStudents() {    
    Session session = sessionFactory.getCurrentSession();    
    String hql = "from Student";    
    Query query = session.createQuery(hql);    
    return (Collection<Student>)query.list();    <- java:54
}

公共集合getAllStudents（）{
Session Session=sessionFactory.getCurrentSession（）；
字符串hql=“来自学生”；
Query=session.createQuery（hql）；
return（Collection）query.list（）；当您试图向表行中插入数据时，如果数据的值违反了其中的任何设置约束，则通常会发生约束冲突异常
请确保插入列中的值未违反约束集
e、 g如果列具有唯一索引，则确保该值与其他记录是唯一的。
您的查询正在触发刷新，这将导致您的ConstraintViolationException。不幸的是，您在保存时没有收到此错误，但您的错误肯定与此查询无关
在此查询之前调查您的插入。请在保存（.saveAndFlush（）/.save（flush:true））的同时尝试刷新若要立即尝试识别错误插入，希望Hibernate和JDBC会给您一条正确的错误消息，告诉您错误的地方，而不是这种不明确的约束冲突。
我的目标是能够更改纬度和经度，但我无法更改约束。然后将这些值更改为：Fixed t这是一个很好的例子，说明了许多人不喜欢Hibernate的原因之一。如果你不理解Hibernate是怎么想的，你的错误会出现在不明显的地方，可能会浪费很多时间在错误的地方搜索你的错误。