错误在Hibernate查询

我的hibernate.cfg.xml是这样的：错误在Hibernate查询

<?xml version="1.0" encoding="UTF-8"?> 
<!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd"> 
<hibernate-configuration> 
<session-factory> 
<property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property> 
<property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property> 
<property name="hibernate.connection.url">jdbc:mysql://localhost:3306/****</property> 
<property name="hibernate.connection.username">***</property> 
<property name="hibernate.connection.password">*****</property> 

<property name="hibernate.query.factory_class">org.hibernate.hql.classic.ClassicQueryTranslatorFactor y</property> 
<property name="connection.pool_size">1</property> 
<property name="dialect">org.hibernate.dialect.MySQLDialect</property> 
<property name="show_sql">false</property> 
<property name="hbm2ddl.auto">create</property> 
<!-- Enable Hibernate's automatic session context management --> 
    <property name="current_session_context_class">thread</property> 
<!-- JDBC connection pool (use the built-in) --> 
    <property name="connection.pool_size">1</property> 

<mapping class="entities.MisurazioneOraria"/> 
<mapping class=.... 
    ....> 
<listener type="post-insert" class="MisurazioneOrariaInsertListener"/> 

</session-factory> 

</hibernate-configuration>

我试着做从这一行代码，听众询问：

ArrayList<MisurazioneOraria> mis = (ArrayList<MisurazioneOraria>) session.createQuery("from (misurazione_oraria) where sensore_idsensore = :idsensore").setParameter("idsensore", m.getSensore().getIdSensore()).list();

和错误之处在于：

mag 27, 2012 6:30:33 PM org.hibernate.event.def.AbstractFlushingEventListener performExecutions 
Grave: Could not synchronize database state with session 
org.hibernate.QueryException: in expected: misurazione_oraria [from (misurazione_oraria) where sensore_idsensore = :idsensore]

我的mysql版本是5.5.23。谢谢您的帮助。

来源

2012-05-27 blink89

我在这里看到的空间“org.hibernate.hql.classic.ClassicQueryTranslatorFactor Y”ü可以检查一次.. –

您的实体班名为MisurazioneOraria，而不是misurazione_oraria。 HQL使用实体和字段/属性。它不使用表和列名称。

阅读HQL documentation。

此外，Query.list()返回一个列表，而不一定是一个ArrayList。您不应该将查询的结果强制转换为ArrayList。！

来源

2012-05-27 17:25:10

由于现在它的工作原理：d – blink89

将其更改为

List<MisurazioneOraria> mis = session.createQuery("from MisurazioneOraria where idSensore = :idsensore").setParameter("idsensore", m.getSensore().getIdSensore()).list();

来源

2012-05-27 17:31:10

错误在Hibernate查询

回答

相关问题