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我使用 spring roo 来构建一个 CMS webapp。

这个应用程序当然有用户管理功能。

我的问题是，如果我使用 PhpMyAdmin 将用户信息插入数据库，然后转到我的应用程序来修改这些信息，则错误或出现。（如果我通过应用程序插入用户信息并通过应用程序编辑，它工作正常）

你们中的任何人都可以向我解释为什么会发生以及如何解决它吗？

非常感谢。

添加信息：此错误或仅由用户表发生，其他表（例如新闻或产品）没有问题。下面是我的一些代码。

EndUser.java（实体）

public class EndUser {

    @NotNull
    @Size(min = 1, max = 20)
    @Column(name = "user_id", unique = true, nullable = false)
    private String userId;

    @Column(name = "user_name")
    private String name;

    @NotNull
    @Size(min = 1, max = 40)
    @Column(name = "password", nullable = false)
    private String password;

    @Column(name = "first_name")
    private String firstName;

    @Column(name = "last_name")
    private String lastName;

    @Column(name = "gender")
    private Integer gender;

    @Column(name = "email")
    private String email;

    @Column(name = "last_login")
    @DateTimeFormat(style = "M-")
    private Date lastLogin;

    @Column(name = "created_date")
    @DateTimeFormat(style = "M-")
    private Date createdDate;

    @Column(name = "date_of_birth")
    @DateTimeFormat(style = "M-")
    private Date dateOfBirth;

    @NotNull
    @Column(name = "role")
    private String role;

    @Column(name = "is_deleted")
    private Boolean isDeleted;
}

终端用户控制器.java

@PreAuthorize("hasRole('ROLE_SUPER_ADMIN')")
@RequestMapping(method = RequestMethod.PUT, produces = "text/html")
public String update(@Valid EndUser endUser, BindingResult bindingResult, Model uiModel, HttpServletRequest httpServletRequest) {
    if (bindingResult.hasErrors()) {
        populateEditForm(uiModel, endUser);
        return "admin/user/update";
    }

    endUser.setIsDeleted(false);

    uiModel.asMap().clear();
    endUser.merge();
    return "redirect:/admin/user/" + encodeUrlPathSegment(endUser.getId().toString(), httpServletRequest);
}

如果我更新由 PhpMyAdmin 插入的用户信息，错误或出现

2013-05-08 20:10:58,741 [http-8080-7] DEBUG org.springframework.orm.jpa.JpaTransactionManager - Found thread-bound EntityManager [org.hibernate.ejb.EntityManagerImpl@165f5a4] for JPA transaction
2013-05-08 20:10:58,741 [http-8080-7] DEBUG org.springframework.orm.jpa.JpaTransactionManager - Creating new transaction with name [vn.a2s.lib.db.model.EndUser.merge]: PROPAGATION_REQUIRED,ISOLATION_DEFAULT; ''
2013-05-08 20:10:58,741 [http-8080-7] DEBUG org.springframework.orm.jpa.JpaTransactionManager - Not exposing JPA transaction [org.hibernate.ejb.EntityManagerImpl@165f5a4] as JDBC transaction because JpaDialect [org.springframework.orm.jpa.DefaultJpaDialect@157f3a4] does not support JDBC Connection retrieval
2013-05-08 20:10:58,743 [http-8080-7] DEBUG org.springframework.beans.factory.annotation.InjectionMetadata - Processing injected method of bean 'vn.a2s.lib.db.model.EndUser': PersistenceElement for transient javax.persistence.EntityManager vn.a2s.lib.db.model.EndUser.entityManager
2013-05-08 20:10:58,743 [http-8080-7] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Returning cached instance of singleton bean 'entityManagerFactory'
2013-05-08 20:10:58,752 [http-8080-7] ERROR org.hibernate.engine.jdbc.spi.SqlExceptionHelper - Duplicate entry 'nghi' for key 'user_id'
2013-05-08 20:10:58,752 [http-8080-7] ERROR org.hibernate.engine.jdbc.spi.SqlExceptionHelper - Duplicate entry 'nghi' for key 'user_id'
2013-05-08 20:10:58,752 [http-8080-7] DEBUG org.springframework.orm.jpa.JpaTransactionManager - Initiating transaction rollback
2013-05-08 20:10:58,752 [http-8080-7] DEBUG org.springframework.orm.jpa.JpaTransactionManager - Rolling back JPA transaction on EntityManager [org.hibernate.ejb.EntityManagerImpl@165f5a4]
2013-05-08 20:10:58,753 [http-8080-7] DEBUG org.springframework.orm.jpa.JpaTransactionManager - Not closing pre-bound JPA EntityManager after transaction
2013-05-08 20:10:58,754 [http-8080-7] DEBUG org.springframework.web.servlet.mvc.method.annotation.ExceptionHandlerExceptionResolver - Resolving exception from handler [public java.lang.String vn.a2s.sparepart.web.admin.EndUserController.update(vn.a2s.lib.db.model.EndUser,org.springframework.validation.BindingResult,org.springframework.ui.Model,javax.servlet.http.HttpServletRequest)]: org.springframework.orm.jpa.JpaSystemException: org.hibernate.exception.ConstraintViolationException: Duplicate entry 'nghi' for key 'user_id'; nested exception is javax.persistence.PersistenceException: org.hibernate.exception.ConstraintViolationException: Duplicate entry 'nghi' for key 'user_id'
2013-05-08 20:10:58,754 [http-8080-7] DEBUG org.springframework.web.servlet.mvc.annotation.ResponseStatusExceptionResolver - Resolving exception from handler [public java.lang.String vn.a2s.sparepart.web.admin.EndUserController.update(vn.a2s.lib.db.model.EndUser,org.springframework.validation.BindingResult,org.springframework.ui.Model,javax.servlet.http.HttpServletRequest)]: org.springframework.orm.jpa.JpaSystemException: org.hibernate.exception.ConstraintViolationException: Duplicate entry 'nghi' for key 'user_id'; nested exception is javax.persistence.PersistenceException: org.hibernate.exception.ConstraintViolationException: Duplicate entry 'nghi' for key 'user_id'
2013-05-08 20:10:58,754 [http-8080-7] DEBUG org.springframework.web.servlet.mvc.support.DefaultHandlerExceptionResolver - Resolving exception from handler [public java.lang.String vn.a2s.sparepart.web.admin.EndUserController.update(vn.a2s.lib.db.model.EndUser,org.springframework.validation.BindingResult,org.springframework.ui.Model,javax.servlet.http.HttpServletRequest)]: org.springframework.orm.jpa.JpaSystemException: org.hibernate.exception.ConstraintViolationException: Duplicate entry 'nghi' for key 'user_id'; nested exception is javax.persistence.PersistenceException: org.hibernate.exception.ConstraintViolationException: Duplicate entry 'nghi' for key 'user_id'
2013-05-08 20:10:58,754 [http-8080-7] DEBUG org.springframework.web.servlet.handler.SimpleMappingExceptionResolver - Resolving exception from handler [public java.lang.String vn.a2s.sparepart.web.admin.EndUserController.update(vn.a2s.lib.db.model.EndUser,org.springframework.validation.BindingResult,org.springframework.ui.Model,javax.servlet.http.HttpServletRequest)]: org.springframework.orm.jpa.JpaSystemException: org.hibernate.exception.ConstraintViolationException: Duplicate entry 'nghi' for key 'user_id'; nested exception is javax.persistence.PersistenceException: org.hibernate.exception.ConstraintViolationException: Duplicate entry 'nghi' for key 'user_id'
2013-05-08 20:10:58,754 [http-8080-7] DEBUG org.springframework.web.servlet.handler.SimpleMappingExceptionResolver - Resolving to view 'dataAccessFailure' for exception of type [org.springframework.orm.jpa.JpaSystemException], based on exception mapping [.DataAccessException]
2013-05-08 20:10:58,754 [http-8080-7] DEBUG org.springframework.web.servlet.handler.SimpleMappingExceptionResolver - Exposing Exception as model attribute 'exception'
2013-05-08 20:10:58,754 [http-8080-7] DEBUG org.springframework.web.servlet.DispatcherServlet - Handler execution resulted in exception - forwarding to resolved error view: ModelAndView: reference to view with name 'dataAccessFailure'; model is {exception=org.springframework.orm.jpa.JpaSystemException: org.hibernate.exception.ConstraintViolationException: Duplicate entry 'nghi' for key 'user_id'; nested exception is javax.persistence.PersistenceException: org.hibernate.exception.ConstraintViolationException: Duplicate entry 'nghi' for key 'user_id'}
org.springframework.orm.jpa.JpaSystemException: org.hibernate.exception.ConstraintViolationException: Duplicate entry 'nghi' for key 'user_id'; nested exception is javax.persistence.PersistenceException: org.hibernate.exception.ConstraintViolationException: Duplicate entry 'nghi' for key 'user_id'
    at org.springframework.orm.jpa.EntityManagerFactoryUtils.convertJpaAccessExceptionIfPossible(EntityManagerFactoryUtils.java:318)
    at org.springframework.orm.jpa.aspectj.JpaExceptionTranslatorAspect.ajc$afterThrowing$org_springframework_orm_jpa_aspectj_JpaExceptionTranslatorAspect$1$18a1ac9(JpaExceptionTranslatorAspect.aj:15)
    at vn.a2s.lib.db.model.EndUser_Roo_Jpa_ActiveRecord.ajc$interMethod$vn_a2s_lib_db_model_EndUser_Roo_Jpa_ActiveRecord$vn_a2s_lib_db_model_EndUser$merge(EndUser_Roo_Jpa_ActiveRecord.aj:72)
    at vn.a2s.lib.db.model.EndUser.merge(EndUser.java:1)
    at vn.a2s.lib.db.model.EndUser_Roo_Jpa_ActiveRecord.ajc$interMethodDispatch1$vn_a2s_lib_db_model_EndUser_Roo_Jpa_ActiveRecord$vn_a2s_lib_db_model_EndUser$merge(EndUser_Roo_Jpa_ActiveRecord.aj)
    at vn.a2s.sparepart.web.admin.EndUserController.update(EndUserController.java:87)
    at vn.a2s.sparepart.web.admin.EndUserController$$FastClassByCGLIB$$ed0ea343.invoke(<generated>)
    at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
    at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:698)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
    at org.springframework.security.access.intercept.aopalliance.MethodSecurityInterceptor.invoke(MethodSecurityInterceptor.java:61)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
    at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:631)
    at vn.a2s.sparepart.web.admin.EndUserController$$EnhancerByCGLIB$$48aaf78c.update(<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.invoke(InvocableHandlerMethod.java:219)
    at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)
    at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:746)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:687)
    at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:915)
    at org.springframework.web.servlet.FrameworkServlet.doPut(FrameworkServlet.java:833)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:640)
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:796)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.springframework.orm.jpa.support.OpenEntityManagerInViewFilter.doFilterInternal(OpenEntityManagerInViewFilter.java:180)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:311)
    at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:116)
    at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:83)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
    at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:113)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
    at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:101)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
    at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:113)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
    at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:54)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
    at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:45)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
    at org.springframework.security.web.authentication.www.BasicAuthenticationFilter.doFilter(BasicAuthenticationFilter.java:150)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
    at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:182)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
    at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:105)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
    at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
    at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:173)
    at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346)
    at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:259)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:74)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
    at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:852)
    at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
    at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
    at java.lang.Thread.run(Unknown Source)
4

1 回答 1

1

Hibernate, out of the box, is setup in such a way that it does not support modifying the tables directly. This is because Hibernate is caching the Entities between reads/writes. If you request the same object over and over, Hibernate, if it's doing it's job correctly, should be reading the object once, doing all updates to the cache, and only writing the object when the cache expires.

If you modify the DB behind Hibernate, then the items in the Cache do not match what is in the DB. There is a way to turn this off in Hibernate, but it has performance implications. Unfortunately, it's been quite some time since I had to do this in Hibernate, so how you actually go about doing this I am not 100% sure. You may have to spend some time googling for it.

于 2013-05-17T20:33:01.333 回答