hibernate插入数据出错 Table 'news.hibernate_unique_key' doesn't exist

数据库：
CREATE TABLE `admin` (
          `CID` int(8) NOT NULL default '0',
          `UserName` varchar(20) collate latin1_general_ci NOT NULL,
          `Password` varchar(32) collate latin1_general_ci NOT NULL,
          `UserClass` varchar(32) collate latin1_general_ci NOT NULL,
          `LastDate` datetime default NULL,
          `LastIP` varchar(15) collate latin1_general_ci NOT NULL,
          PRIMARY KEY  (`CID`)
        ) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_general_ci

配置文件

...
    <class name="Admin" table="admin">
        <id name="cid" column="CID" type="java.lang.Integer">
            <generator class="hilo"/>
        </id>
...

hibernate.cfg.xml

...
<session-factory>
<property name="myeclipse.connection.profile">mysql</property>
<property name="connection.url">jdbc:mysql://localhost:3306/news</property>
<property name="connection.username">root</property>
<property name="connection.password">5487635104</property>
<property name="connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="dialect">org.hibernate.dialect.MySQLDialect</property>
    <mapping resource="com/news/struts/bean/Admin.hbm.xml"></mapping>
    <mapping resource="com/news/struts/bean/Adminclass.hbm.xml" />
    <mapping resource="com/news/struts/bean/Newclass.hbm.xml" />
    <mapping resource="com/news/struts/bean/News.hbm.xml" />
    <mapping resource="com/news/struts/bean/Review.hbm.xml" />

</session-factory>
...

//Test.java
package com.news.hibernate;

import org.apache.log4j.PropertyConfigurator;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.cfg.Configuration;

import com.news.struts.bean.Admin;

public class Test {

public static void main(String[] args) {
PropertyConfigurator.configure("log4j.properties");
Configuration cfg = new Configuration();
cfg.configure();
SessionFactory sf = cfg.buildSessionFactory();
Session sess = sf.openSession();
Transaction tra = sess.beginTransaction();
Admin admin = new Admin();
admin.setLastip("100.100.100.100");
admin.setPassword("123456");
admin.setUsername("cq");
admin.setUserclass("0");
sess.save(admin);
tra.commit();
sess.close();
}

}

错误信息：

Exception in thread "main" org.hibernate.exception.SQLGrammarException: could not get or update next value
at org.hibernate.exception.ErrorCodeConverter.convert(ErrorCodeConverter.java:70)
at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)
at org.hibernate.engine.TransactionHelper.doWorkInNewTransaction(TransactionHelper.java:85)
at org.hibernate.id.TableGenerator.generate(TableGenerator.java:94)
at org.hibernate.id.TableHiLoGenerator.generate(TableHiLoGenerator.java:61)
at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:85)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:184)
at org.hibernate.event.def.DefaultSaveEventListener.saveWithGeneratedOrRequestedId(DefaultSaveEventListener.java:33)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:173)
at org.hibernate.event.def.DefaultSaveEventListener.performSaveOrUpdate(DefaultSaveEventListener.java:27)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:69)
at org.hibernate.impl.SessionImpl.save(SessionImpl.java:481)
at org.hibernate.impl.SessionImpl.save(SessionImpl.java:476)
at com.news.hibernate.Test.main(Test.java:29)
Caused by: com.mysql.jdbc.exceptions.MySQLSyntaxErrorException: Table 'news.hibernate_unique_key' doesn't exist
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:936)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2822)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1536)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1626)
at com.mysql.jdbc.Connection.execSQL(Connection.java:3031)
at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:943)
at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:1049)
at org.hibernate.id.TableGenerator.doWorkInCurrentTransaction(TableGenerator.java:133)
at org.hibernate.engine.TransactionHelper.doWorkInNewTransaction(TransactionHelper.java:64)
... 11 more

知道的给小弟指点一下哈！

6 个解决方案

#1

因为Hibernate Tools生成*.hbn.xml工具中包含有catalog="***"（*代表数据库名称）这样的属性，将该属性删除就可以了。

#2

<?xml version="1.0" encoding='UTF-8'?>
<!DOCTYPE hibernate-mapping PUBLIC
                            "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
                            "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd" >




<hibernate-mapping package="com.news.struts.bean">

    <class name="Admin" table="admin">
        <id name="cid" column="CID" type="java.lang.Integer">
            <generator class="hilo"/>
        </id>

        <property name="username" column="UserName" type="java.lang.String"  not-null="true" />
        <property name="password" column="Password" type="java.lang.String"  not-null="true" />
        <property name="userclass" column="UserClass" type="java.lang.String"  not-null="true" />
        <property name="lastdate" column="LastDate" type="java.util.Date" />
        <property name="lastip" column="LastIP" type="java.lang.String"  not-null="true" />
    </class>

</hibernate-mapping>

这是全部内容，没看到楼上的所说的catalog="***"啊！

#3

自己顶起

#4

帮帮忙啊！
在线等！

#5

应该是你主键的生成方式不对.用自增的ID就可以了

#6

你的"hilo"这里出问题了吧，看一下主键生成方法，hilo好象是hibernate维护吧，所以需要一张hibernate_unique_key表。

#1