躺在沙滩上的小猪

一次类型转换的错误

RoomType和RoomState的主键是Integer,在get的时候忘记转换为Integer了:

         this .getHibernateTemplate().execute( new HibernateCallback() {
             public Object doInHibernate(Session session) throws HibernateException {
                room.setType((RoomType) session.get(RoomType. class , typeId));
                room.setState((RoomState) session.get(RoomState. class , stateId));
                session.update(room);
                 return null ;
            }
        });

没想到hibernate居然大动干做,抛出一大堆的exception

java.sql.SQLException: 索引中丢失  IN 或 OUT 参数:: 1
    at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:112)
    at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:146)
    at oracle.jdbc.driver.OraclePreparedStatement.processCompletedBindRow(OraclePreparedStatement.java:1681)
    at oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:3280)
    at oracle.jdbc.driver.OraclePreparedStatement.executeQuery(OraclePreparedStatement.java:3329)
    at org.apache.commons.dbcp.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:92)
    at org.hibernate.jdbc.AbstractBatcher.getResultSet(AbstractBatcher.java:139)
    at org.hibernate.loader.Loader.getResultSet(Loader.java:1669)
    at org.hibernate.loader.Loader.doQuery(Loader.java:662)
    at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:224)
    at org.hibernate.loader.Loader.doList(Loader.java:2145)
    at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2029)
    at org.hibernate.loader.Loader.list(Loader.java:2024)
    at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:375)
    at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:308)
    at org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:153)
    at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1129)
    at org.hibernate.impl.QueryImpl.list(QueryImpl.java:79)
    at org.hibernate.impl.AbstractQueryImpl.uniqueResult(AbstractQueryImpl.java:749)
    at com.phopesoft.hms.room.service.impl.RoomServiceImpl$3.doInHibernate(RoomServiceImpl.java:151)
    at org.springframework.orm.hibernate3.HibernateTemplate.execute(HibernateTemplate.java:366)
    at org.springframework.orm.hibernate3.HibernateTemplate.execute(HibernateTemplate.java:334)

这样的错误真是让我一点莫不着头脑,还好从后台打出的hql看到了错误的信息

org.springframework.jdbc.UncategorizedSQLException: Hibernate operation:
could not execute query; uncategorized SQLException for SQL [
...
SQL state [null]; error code [17041]; 索引中丢失 IN 或 OUT 参数::1;
nested exception is java.sql.SQLException: 索引中丢失 IN 或 OUT 参数:: 1

不就是没找到吗,干嘛要这样呢

将String类型转换为Integer就没事了

        this.getHibernateTemplate().execute(new HibernateCallback() {
            public Object doInHibernate(Session session) throws HibernateException {
                room.setType((RoomType) session.get(RoomType.class, new Integer(typeId)));
                room.setState((RoomState) session.get(RoomState.class, new Integer(stateId)));
                session.update(room);
                return null;
            }
        });

posted @ 2006-05-03 11:16 martin xus| 编辑收藏

JBoss 居然不认识webwork的

在resin和weblogic上跑的很好的程序,今天早上移植到JBoss上 ,页面跑到<ww:if处没法正常运行,报错,换成<c:if 就没有问题了.

一大早的被郁闷了一下

posted @ 2006-05-02 13:35 martin xus| 编辑收藏

小结一下OpenSessionInView

感谢javaeye差沙和cac的回复.

OpenSessionInView默认的FlushMode为

FlushMode.NEVER

可以采用在写保存更新删除代码的时候手动更改FlushMode

        this.getHibernateTemplate().execute(new HibernateCallback() {
            public Object doInHibernate(Session session) throws HibernateException {
                session.setFlushMode(FlushMode.AUTO);
                session.save(user);
                session.flush();
                return null;
            }
        });

但是这样做太繁琐了,第二种方式是采用spring的事务声明

    <bean id="baseTransaction" class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean"
          abstract="true">
        <property name="transactionManager" ref="transactionManager"/>
        <property name="proxyTargetClass" value="true"/>
        <property name="transactionAttributes">
            <props>
                <prop key="get*">PROPAGATION_REQUIRED,readOnly</prop>
                <prop key="find*">PROPAGATION_REQUIRED,readOnly</prop>
                <prop key="load*">PROPAGATION_REQUIRED,readOnly</prop>
                <prop key="save*">PROPAGATION_REQUIRED</prop>
                <prop key="add*">PROPAGATION_REQUIRED</prop>
                <prop key="update*">PROPAGATION_REQUIRED</prop>
                <prop key="remove*">PROPAGATION_REQUIRED</prop>
            </props>
        </property>
    </bean>

posted @ 2006-05-01 11:43 martin xus| 编辑收藏

为何OpenSessionInView不能同时保存和删除,郁闷!

因为lazy的问题,还是采用了OpenSessionInView
一开始我的web.xml配置文件如下:

    <filter>
        <filter-name>opensession</filter-name>
        <filter-class>org.springframework.orm.hibernate3.support.OpenSessionInViewFilter</filter-class>
    </filter>

写了个保存的代码测试了一下,报如下的错误:

org.springframework.dao.InvalidDataAccessApiUsageException: Write operations
are not allowed in read-only mode (FlushMode.NEVER) - turn your Session
into FlushMode.AUTO or remove 'readOnly' marker from transaction definition
        at org.springframework.orm.hibernate3.HibernateTemplate.checkWriteOperationAllowed(HibernateTemplate.java:1076)
        at org.springframework.orm.hibernate3.HibernateTemplate$12.doInHibernate(HibernateTemplate.java:616)
        at org.springframework.orm.hibernate3.HibernateTemplate.execute(HibernateTemplate.java:366)
        at org.springframework.orm.hibernate3.HibernateTemplate.save(HibernateTemplate.java:614)
        at com.phopesoft.security.service.impl.UserServiceImpl.addUser(UserServiceImpl.java:40)
        at com.phopesoft.security.web.UserAction.add(UserAction.java:52)
        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 com.opensymphony.xwork.DefaultActionInvocation.invokeAction(DefaultActionInvocation.java:365)

.

在javaeye中搜索了一下,发现了Readonly的帖子,将web.xml修改为如下:

<filter>
        <filter-name>opensession</filter-name>
        <filter-class>org.springframework.orm.hibernate3.support.OpenSessionInViewFilter</filter-class>
        <init-param>
            <param-name>singleSession</param-name>
            <param-value>false</param-value>
        </init-param>
    </filter>

保存的代码顺利通过测试,但是删除的代码却不能通过了.出现如下的错误:

org.hibernate.HibernateException: Illegal attempt to associate a collection
with two open sessions
        at org.hibernate.collection.AbstractPersistentCollection.setCurrentSession(AbstractPersistentCollection.java:410)
        at org.hibernate.event.def.OnUpdateVisitor.processCollection(OnUpdateVisitor.java:40)
        at org.hibernate.event.def.AbstractVisitor.processValue(AbstractVisitor.java:101)
        at org.hibernate.event.def.AbstractVisitor.processValue(AbstractVisitor.java:61)
        at org.hibernate.event.def.AbstractVisitor.processEntityPropertyValues(AbstractVisitor.java:55)
        at org.hibernate.event.def.AbstractVisitor.process(AbstractVisitor.java:123)
        at org.hibernate.event.def.DefaultDeleteEventListener.onDelete(DefaultDeleteEventListener.java:72)
        at org.hibernate.impl.SessionImpl.fireDelete(SessionImpl.java:790)
        at org.hibernate.impl.SessionImpl.delete(SessionImpl.java:768)
        at org.springframework.orm.hibernate3.HibernateTemplate$25.doInHibernate(HibernateTemplate.java:772)
        at org.springframework.orm.hibernate3.HibernateTemplate.execute(HibernateTemplate.java:366)
        at org.springframework.orm.hibernate3.HibernateTemplate.delete(HibernateTemplate.java:766)
        at org.springframework.orm.hibernate3.HibernateTemplate.delete(HibernateTemplate.java:762)

同样在论坛里面搜索到遇到这个问题的朋友,回帖说去掉singleSession!

迷惑了

posted @ 2006-04-30 15:48 martin xus| 编辑收藏