我寫了一個映射,如下圖所示:Hibernate映射創建表
<hibernate-mapping auto-import="true" default-lazy="false">
<class name="com.saman.entity.hibernate.EmployeeEntity"
table="Employee" optimistic-lock="version">
<id name="id" type="java.lang.Integer" >
<column name="Id" />
<generator class="identity"/>
</id>
<timestamp name="version" source="db"/>
<property name="firstName">
<column name="FirstName" sql-type="nvarchar(300)"/>
</property>
<property name="lastName">
<column name="LastName" sql-type="nvarchar(300)"/>
</property>
<property name="employeeType">
<column name="EmployeeType" sql-type="nvarchar(300)"/>
</property>
<!--
<set name="shifts" table="Shifts" inverse="true" lazy="true" fetch="select">
<key>
<column name="Id" not-null="true"/>
</key>
<one-to-many class="com.saman.entity.hibernate.ShiftEntity"/>
</set>
-->
<properties name="u1" unique="true">
<property name="firstName"/>
<property name="lastName"/>
<property name="employeeType"/>
</properties>
</class>
</hibernate-mapping>
當我運行我的應用程序時出現錯誤象下面這樣:
2012-05-15 17:12:38651 - WARN - 不成功的模式語句:創建表員工(Id整數不爲空auto_increment,版本日期時間不爲空,名字nvarchar(300),姓氏nvarchar(300),EmployeeType nvarchar(300),主鍵(Id),唯一(firstName,lastName ,employeeType)) com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException:指定的鍵太長;最大的密鑰長度是1000字節 在sun.reflect.NativeConstructorAccessorImpl.newInstance0(本機方法) 在sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39) 在sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27 ) 在java.lang.reflect.Constructor.newInstance(Constructor.java:513) 在com.mysql.jdbc.Util.handleNewInstance(Util.java:411) 在com.mysql.jdbc.Util.getInstance(的Util .java:386) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1052) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3609) at com.mysql.jdbc.MysqlIO .checkErrorPacket(MysqlIO.java:3541) at co m.mysql.jdbc.MysqlIO.sendCommand在com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2163)(MysqlIO.java:2002) 在com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java: 2618) 在com.mysql.jdbc.StatementImpl.executeUpdate(StatementImpl.java:1749) 在com.mysql.jdbc.StatementImpl.executeUpdate(StatementImpl.java:1666) 在com.mchange.v2.c3p0.impl。 NewProxyStatement.executeUpdate(NewProxyStatement.java:64) 在org.springframework.orm.hibernate3.LocalSessionFactoryBean.executeSchemaStatement(LocalSessionFactoryBean.java:1115) 在org.springframework.orm.hibernate3.LocalSessionFactoryBean.executeSchemaScript(LocalSessionFactoryBean.java:1087) at org.springframework.orm.hibernate3.LocalSessionFactoryBean $ 1.doInHibernate(LocalSessionF actoryBean.java:942) 在org.springframework.orm.hibernate3.HibernateTemplate.doExecute(HibernateTemplate.java:406) 在org.springframework.orm.hibernate3.HibernateTemplate.execute(HibernateTemplate.java:339) 在有機springframework.orm.hibernate3.LocalSessionFactoryBean.updateDatabaseSchema(LocalSessionFactoryBean.java:935) 在org.springframework.orm.hibernate3.LocalSessionFactoryBean.afterSessionFactoryCreation(LocalSessionFactoryBean.java:883) 在org.springframework.orm.hibernate3.AbstractSessionFactoryBean.afterPropertiesSet( AbstractSessionFactoryBean.java:213) 在org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1477) 在org.springframework.beans.factory.support.AbstractAut owireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1417) 在org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519) 在org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory。 Java的:456) 在org.springframework.beans.factory.support.AbstractBeanFactory $ 1.getObject(AbstractBeanFactory.java:291) 在org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:288) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:190) at org.springframework。beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:563) 在org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:895) 在org.springframework.context.support.AbstractApplicationContext.refresh( AbstractApplicationContext.java:425) 在org.springframework.context.support.ClassPathXmlApplicationContext。(ClassPathXmlApplicationContext.java:139) 在org.springframework.context.support.ClassPathXmlApplicationContext。(ClassPathXmlApplicationContext.java:83) 在Main.main( Main.java:18)
它有什麼問題嗎?
即時通訊使用MySQL和我在MAMP上運行它。
郵政完整的堆棧跟蹤,以及後期的索引導致此異常的代碼被拋出。 –
我改變了它:D – saman