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hibernate无法持久化数据到数据库

ltshark

发贴: 4
积分: 0

于 2006-10-31 01:49

现象：使用jboss4.0.5+hibernate,使用以下第1点到第5点的配置，可以使用hibernate查询数据库，但是无法保存数据到mysql数据库。已经测试了一个星期，实在是山穷水尽了，请帮忙指教，不胜感激。

1、这是mysql-ds.xml文件
<datasources>
<local-tx-datasource>
<jndi-name>mysqlds</jndi-name>
<connection-url>jdbc:mysql://localhost:3306/test</connection-url>
<driver-class>com.mysql.jdbc.Driver</driver-class>
<user-name>XXXX</user-name>
<password>XXXX</password>
<connection-property name="useUnicode">true</connection-property>
<connection-property name="characterEncoding">utf8</connection-property>
</local-tx-datasource>
</datasources>
2、这是hibernate-service.xml文件
<server>
<mbean code="org.jboss.hibernate.jmx.Hibernate"
name="jboss.har:service=TestHibernate">
<attribute name="DatasourceName">java:/mysqlds</attribute>
<attribute name="Dialect">org.hibernate.dialect.MySQLDialect</attribute>
<attribute name="SessionFactoryName">java:hibernate/TestSessionFactory</attribute>
<attribute name="CacheProviderClass">org.hibernate.cache.HashtableCacheProvider</attribute>
<attribute name="ShowSqlEnabled">true</attribute>
<attribute name="ScanForMappingsEnabled">true</attribute>

</mbean>
</server>
3、这是数据库脚本
CREATE TABLE account
(accid VARCHAR(30) NOT NULL PRIMARY KEY,
accname VARCHAR(30)
);
4、这是对应的Account.hbm.xml文件
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">

<hibernate-mapping>
<class name="com.sxdx.dsc.entity.Account" table="account" catalog="test">
<id name="accid" type="string">
<column name="accid" length="30" />
<generator class="assigned" />
</id>
<property name="accname" type="string">
<column name="accname" length="30" />
</property>
</class>
</hibernate-mapping>
5、这是在Servlet里面调用hibernate试图持久化Account 对象的代码：
Account acc = new Account();
acc.setAccid(accid);
acc.setAccname(accname);
Context ctx = new InitialContext();
SessionFactory sessionFactory = (SessionFactory) ctx.lookup("java:hibernate/TestSessionFactory");
Session hsession = sessionFactory.openSession();
Transaction tx = hsession.beginTransaction();
hsession.save(acc);
tx.commit();
hsession.close();

作者

Re:hibernate无法持久化数据到数据库 [Re:ltshark]

ltshark

发贴: 4
积分: 0

于 2006-10-31 01:50

6、这是出错提示：
01:37:23,118 ERROR [BasicPropertyAccessor] IllegalArgumentException in class: com.sxdx.dsc.entity.Account,

getter method of property: accid
01:37:23,119 ERROR [STDERR] org.hibernate.PropertyAccessException: IllegalArgumentException occurred

calling getter of com.sxdx.dsc.entity.Account.accid
at org.hibernate.property.BasicPropertyAccessor$BasicGetter.get(BasicPropertyAccessor.java:171)
at org.hibernate.tuple.entity.AbstractEntityTuplizer.getIdentifier(AbstractEntityTuplizer.java:183)
at org.hibernate.persister.entity.AbstractEntityPersister.getIdentifier(AbstractEntityPersister.java:3524)
at org.hibernate.id.Assigned.generate(Assigned.java:28)
at

org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:98)
at

org.hibernate.event.def.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrU

pdateEventListener.java:186)
at

org.hibernate.event.def.DefaultSaveEventListener.saveWithGeneratedOrRequestedId(DefaultSaveEventListener

.java:33)
at

org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListene

r.java:175)
at

org.hibernate.event.def.DefaultSaveEventListener.performSaveOrUpdate(DefaultSaveEventListener.java:27)
at

org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListen

er.java:70)
at org.hibernate.impl.SessionImpl.fireSave(SessionImpl.java:535)
at org.hibernate.impl.SessionImpl.save(SessionImpl.java:523)
at org.hibernate.impl.SessionImpl.save(SessionImpl.java:519)
at com.sxdx.dsc.test.HibernateSavServlet.doPost(HibernateSavServlet.java:61)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175)
at org.jboss.web.tomcat.tc5.session.ClusteredSessionValve.invoke(ClusteredSessionValve.java:87)
at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at org.jboss.web.tomcat.tc5.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
at

org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProto

col.java:664)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
at java.lang.Thread.run(Thread.java:595)
Caused by: java.lang.IllegalArgumentException: object is not an instance of declaring class
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.hibernate.property.BasicPropertyAccessor$BasicGetter.get(BasicPropertyAccessor.java:145)
... 35 more
01:37:23,128 ERROR [CachedConnectionValve] Application error: HibernateSav did not complete its

transaction

作者	Re:hibernate无法持久化数据到数据库 [Re:ltshark]
ltshark 发贴: 4 积分: 0	于 2006-10-31 08:30 不知道有没有hibernate配置成功过的，有哪些地方要配置的啊，请指点一下。

作者	Re:hibernate无法持久化数据到数据库 [Re:ltshark]
lixj0571 发贴: 84 积分: 2	于 2006-11-17 21:59 你可以换一种主键生成方式，可以考虑采用guid <generator class="assigned" /> 或都accid是你的业务主键，可以再加一个id作为这个表的主键

作者	Re:hibernate无法持久化数据到数据库 [Re:ltshark]
java大校发贴: 4 积分: 0	于 2006-11-19 13:49 把他细粒度话分呢

作者	Re:hibernate无法持久化数据到数据库 [Re:ltshark]
java大校发贴: 4 积分: 0	于 2006-11-19 13:53 那个get方法和映射的栏位的类型不同啊！所以才有IllegalArgumentException in class: com.sxdx.dsc.entity.Account, getter method of property: accid 不知道我说的对不对，你试一下吧！

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