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我正在使用 spring 3.1 和 hibernate 3.6 制作分类广告网站。我有四个实体(User
、UserRole
、Advertisement
和 Category
)。我为每个类(class)使用一个单独的 dao。 User
和 UserRoles
在 Daos 中的所有操作都可以正常工作。但是在 Advertisement
和 Category
的 daos 中,保存/更新会抛出一个 SQLGrammarException
。
广告类
@Entity
@Table(name="ads")
public class Advertisement implements Serializable {
private static final long serialVersionUID = 1L;
@Id
@GeneratedValue
@Column(name = "AD_ID")
private String adId;
@ManyToOne(cascade = CascadeType.ALL)
@JoinColumn(name="CAT_ID" )
private Category category;
@ManyToOne(cascade = CascadeType.ALL)
@JoinColumn(name="USER_ID" )
private User user;
@Column(name = "TITLE")
private String title;
@Column(name = "DESC", nullable = true)
private String desc;
@Column(name = "PRICE")
private double price;
@Column(name ="IMG1" , nullable = true)
private String imageOne;
@Column(name ="IMG2" , nullable = true)
private String imageTwo;
@Column(name ="IMG3" , nullable = true)
private String imageThree;
@Temporal(TemporalType.TIMESTAMP)
@Column(name ="CREATED")
private Date createdOn;
//Getters and setters
}
类别类
@Entity
@Table(name="cats")
public class Category implements Serializable {
private static final long serialVersionUID = 1L;
@Id
@GeneratedValue
@Column(name = "CAT_ID")
private String catId;
@Column(name = "CAT_NAME", unique=true)
private String catName;
@Column(name ="DESC" , nullable = true)
private String desc;
@OneToMany(mappedBy="category", fetch=FetchType.LAZY)
private List<Advertisement> allAds;
//getters and setters
}
广告道
@Repository
@Transactional
public class AdvertisementDaoImpl implements AdvertisementDao {
private HibernateTemplate hibernateTemplate;
@Autowired
public void setSessionFactory(SessionFactory sessionFactory)
{
this.hibernateTemplate = new HibernateTemplate(sessionFactory);
}
@Override
public void save(Advertisement ad)
{
hibernateTemplate.save(ad);
}
@Override
public void update(Advertisement ad) {
hibernateTemplate.update(ad);
}
@Override
public void delete(Advertisement ad) {
hibernateTemplate.delete(ad);
}
@Override
public Advertisement getAdById(String adId) {
Advertisement ad = (Advertisement) hibernateTemplate.get(Advertisement.class, adId);
return ad;
}
@SuppressWarnings("unchecked")
@Override
public List<Advertisement> getAdsByUserId(String userId) {
String sql = "SELECT * FROM ads USER_ID = :uID";
List <Advertisement> adList= new ArrayList<Advertisement>();
Query qry = hibernateTemplate.getSessionFactory().getCurrentSession().
createSQLQuery(sql)
.addEntity(Advertisement.class)
.setParameter("uID", userId);
adList = ( List <Advertisement> ) qry.list();
return adList;
}
}
表格
CREATE TABLE IF NOT EXISTS `ads` (
`AD_ID` int(10) unsigned NOT NULL AUTO_INCREMENT,
`CAT_ID` int(10) unsigned NOT NULL,
`USER_ID` int(10) unsigned NOT NULL,
`TITLE` varchar(200) NOT NULL,
`PRICE` double unsigned NOT NULL,
`DESC` varchar(2000) DEFAULT NULL,
`IMG1` varchar(400) DEFAULT NULL,
`IMG2` varchar(400) DEFAULT NULL,
`IMG3` varchar(400) DEFAULT NULL,
`CREATED` timestamp NOT NULL,
PRIMARY KEY (`AD_ID`),
KEY `CAT_ID` (`CAT_ID`),
KEY `USER_ID` (`USER_ID`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=1 ;
ALTER TABLE `ads`
ADD CONSTRAINT `ads_ibfk_2` FOREIGN KEY (`USER_ID`) REFERENCES `users` (`USER_ID`) ON DELETE CASCADE ON UPDATE CASCADE,
ADD CONSTRAINT `ads_ibfk_1` FOREIGN KEY (`CAT_ID`) REFERENCES `categories` (`CAT_ID`) ON DELETE CASCADE ON UPDATE CASCADE;
调用保存方法
Advertisement ad2= new Advertisement();
ad2.setCategory(categoryDao.getAllCategories().get(2));
ad2.setUser(UserService.getCurrentUser());
ad2.setImageOne(null);
ad2.setImageTwo(null);
ad2.setImageThree(null);
ad2.setCreatedOn(new Date());
ad2.setPrice(102.0);
ad2.setTitle("New ad");
ad2.setDesc("descriptions");
advertisementDao.save(ad2);
这是错误
HTTP Status 500 - Request processing failed; nested exception is org.springframework.dao.InvalidDataAccessResourceUsageException: could not insert: [com.slclassifieds.adsonline.model.Advertisement]; SQL [insert into ads (CAT_ID, CREATED, DESC, IMG1, IMG3, IMG2, PRICE, TITLE, USER_ID) values (?, ?, ?, ?, ?, ?, ?, ?, ?)]; nested exception is org.hibernate.exception.SQLGrammarException: could not insert: [com.slclassifieds.adsonline.model.Advertisement]
type Exception report
message Request processing failed; nested exception is org.springframework.dao.InvalidDataAccessResourceUsageException: could not insert: [com.slclassifieds.adsonline.model.Advertisement]; SQL [insert into ads (CAT_ID, CREATED, DESC, IMG1, IMG3, IMG2, PRICE, TITLE, USER_ID) values (?, ?, ?, ?, ?, ?, ?, ?, ?)]; nested exception is org.hibernate.exception.SQLGrammarException: could not insert: [com.slclassifieds.adsonline.model.Advertisement]
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.springframework.dao.InvalidDataAccessResourceUsageException: could not insert: [com.slclassifieds.adsonline.model.Advertisement]; SQL [insert into ads (CAT_ID, CREATED, DESC, IMG1, IMG3, IMG2, PRICE, TITLE, USER_ID) values (?, ?, ?, ?, ?, ?, ?, ?, ?)]; nested exception is org.hibernate.exception.SQLGrammarException: could not insert: [com.slclassifieds.adsonline.model.Advertisement]
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:894)
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:778)
javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:118)
org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:84)
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:113)
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:103)
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:113)
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:54)
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:45)
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
org.springframework.security.web.authentication.www.BasicAuthenticationFilter.doFilter(BasicAuthenticationFilter.java:150)
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:183)
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:105)
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87)
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:192)
org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:160)
org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346)
org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:259)
root cause
org.springframework.dao.InvalidDataAccessResourceUsageException: could not insert: [com.slclassifieds.adsonline.model.Advertisement]; SQL [insert into ads (CAT_ID, CREATED, DESC, IMG1, IMG3, IMG2, PRICE, TITLE, USER_ID) values (?, ?, ?, ?, ?, ?, ?, ?, ?)]; nested exception is org.hibernate.exception.SQLGrammarException: could not insert: [com.slclassifieds.adsonline.model.Advertisement]
org.springframework.orm.hibernate3.SessionFactoryUtils.convertHibernateAccessException(SessionFactoryUtils.java:635)
org.springframework.orm.hibernate3.HibernateAccessor.convertHibernateAccessException(HibernateAccessor.java:412)
org.springframework.orm.hibernate3.HibernateTemplate.doExecute(HibernateTemplate.java:411)
org.springframework.orm.hibernate3.HibernateTemplate.executeWithNativeSession(HibernateTemplate.java:374)
org.springframework.orm.hibernate3.HibernateTemplate.saveOrUpdate(HibernateTemplate.java:737)
com.slclassifieds.adsonline.dao.AdvertisementDaoImpl.save(AdvertisementDaoImpl.java:32)
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:601)
org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:319)
org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:110)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
$Proxy27.save(Unknown Source)
com.slclassifieds.adsonline.web.AdController.viewAdDetails(AdController.java:66)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
java.lang.reflect.Method.invoke(Method.java:601)
org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:213)
org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:126)
org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:96)
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:617)
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:578)
org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:923)
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:852)
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:882)
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:778)
javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:118)
org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:84)
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:113)
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:103)
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:113)
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:54)
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:45)
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
org.springframework.security.web.authentication.www.BasicAuthenticationFilter.doFilter(BasicAuthenticationFilter.java:150)
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:183)
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:105)
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87)
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:192)
org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:160)
org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346)
org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:259)
root cause
org.hibernate.exception.SQLGrammarException: could not insert: [com.slclassifieds.adsonline.model.Advertisement]
org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:92)
org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66)
org.hibernate.id.insert.AbstractReturningDelegate.performInsert(AbstractReturningDelegate.java:63)
org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2346)
org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2853)
org.hibernate.action.EntityIdentityInsertAction.execute(EntityIdentityInsertAction.java:71)
org.hibernate.engine.ActionQueue.execute(ActionQueue.java:273)
org.hibernate.event.def.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:320)
org.hibernate.event.def.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:203)
org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:129)
org.hibernate.event.def.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:210)
org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:195)
org.hibernate.event.def.DefaultSaveOrUpdateEventListener.performSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:117)
org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:93)
org.hibernate.impl.SessionImpl.fireSaveOrUpdate(SessionImpl.java:685)
org.hibernate.impl.SessionImpl.saveOrUpdate(SessionImpl.java:677)
org.hibernate.impl.SessionImpl.saveOrUpdate(SessionImpl.java:673)
org.springframework.orm.hibernate3.HibernateTemplate$16.doInHibernate(HibernateTemplate.java:740)
org.springframework.orm.hibernate3.HibernateTemplate.doExecute(HibernateTemplate.java:406)
org.springframework.orm.hibernate3.HibernateTemplate.executeWithNativeSession(HibernateTemplate.java:374)
org.springframework.orm.hibernate3.HibernateTemplate.saveOrUpdate(HibernateTemplate.java:737)
com.slclassifieds.adsonline.dao.AdvertisementDaoImpl.save(AdvertisementDaoImpl.java:32)
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:601)
org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:319)
org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:110)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
$Proxy27.save(Unknown Source)
com.slclassifieds.adsonline.web.AdController.viewAdDetails(AdController.java:66)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
java.lang.reflect.Method.invoke(Method.java:601)
org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:213)
org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:126)
org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:96)
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:617)
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:578)
org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:923)
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:852)
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:882)
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:778)
javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:118)
org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:84)
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:113)
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:103)
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:113)
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:54)
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:45)
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
org.springframework.security.web.authentication.www.BasicAuthenticationFilter.doFilter(BasicAuthenticationFilter.java:150)
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:183)
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:105)
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87)
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:192)
org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:160)
org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346)
org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:259)
root cause
com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'DESC, IMG1, IMG3, IMG2, PRICE, TITLE, USER_ID) values ('3', '2013-01-01 19:09:30' at line 1
我尝试删除 ManytoOne 关联(删除 USER_ID 和 CAT_ID FK),但我无法保存到这两个表。但是我可以通过调用 advertisementDao.getAdById(id)
来获取 Advertisement 类的对象,它还会自动加载相关的 Category 对象和 User 对象。我还将所有四个类添加到 hibernate 配置文件中。
我看不出是什么导致了这个错误。最后,我尝试通过从 session 中获取查询对象以传统方式创建 SQL 插入查询。它也给出了同样的错误。请帮我。谢谢
最佳答案
DESC
是 MySQL 中的保留字,因此不能将其用作列名。您应该重命名您的列以使插入工作。
关于mysql - 尝试更新/保存某些实体时,Spring + Hibernate + Mysql 抛出 SQLGrammarExeception。阅读效果很好,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/14111022/
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我正在努力解决这个问题:如何判断一个概念是聚合根还是只是一个实体(属于 AR 的一部分)? : 他们都有 ID 它们都是由实体或值对象组成 也许如果我需要引用其他 AR 中的实体,那么我需要将其设为
我已经尝试在 HTML 中包含以下代码,用于附加文件符号。但它显示一个空的白框。 📎 📎 📎 是否有替代的 HTML 附加文件符号实体? 如果没有,我们可以手动创建
如何在我的实体中以 14-04-2017 格式存储日期? 但我必须从字符串中解析它。 SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-
我需要从两个连接表中获取数据。数据集是什么类型?我是否需要创建一个包含这两个表中的属性的类以用于数据集类型,或者我可以使用实体模式中的类型。我如何修改我的方法才能正常工作? public static
好的,我们正在尝试建立一个中央站点来查看来自销售我们产品的多个供应商的数据。这些多个供应商使用不同的销售系统(确切地说是两个不同的系统),因此每个数据库看起来完全不同。我们与他们的数据库同步,因此数据
我是 backbone 的新手。但是当我研究模型实体时,我不明白一些事情。如果我们可以像 java 或 C# 这样的标准语言一样定义模型属性,那就太好了。有没有可能是这样的。所以我的想法是这样的: M
我想获取存储在可绘制的 xml 文件中的形状的颜色。 我来到了将 Drawable 存储在 Drawable 变量中的步骤,所以,现在我想获取形状的颜色(纯色标签)。 有什么建议吗? 最佳答案 Gra
实体是直接映射到我们的数据库(我们用于 Hibernate)的类。 在调用 DAO 之前,我们的服务类包含这些实体的业务逻辑。 我们还有命令对象,它们是与特定 View 相关的 POJO。有人告诉我实
在我的应用程序中,我需要显示不同存储过程返回的记录列表。每个存储过程返回不同类型的记录(即列数和列类型不同)。 我最初的想法是为每种类型的记录创建一个类,并创建一个函数来执行相应的存储过程并返回 Li
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