Question

我正在将应用程序从Hibernate 4.3.6.Final迁移到5.0.9.Final，然后再迁移到5.2.0.Final。 Currentley我遇到了HQL查询的问题，这些查询不使用完全限定名。该应用程序在每个对象类的mit hbm.xml映射文件的组合中使用hibernate.cfg.xml配置文件。注释仅用于也使用hibernate-search的类中。对于数据选择，应用程序使用HQL查询，只有少数查询是标准查询。

以下HQL查询在4.3.6中完美运行：

Organization temp = (Organization) session.createQuery("FROM Organization o WHERE o.pid = "+pid).setMaxResults(1).uniqueResult();

在5.0.9.Final中我得到以下异常：

java.lang.IllegalArgumentException: org.hibernate.QueryException: in expected: o [FROM Organization o WHERE o.pid = 5]

如果我按以下方式更改查询，一切都很好：

Organization temp = (Organization) session.createQuery("FROM at.nettania.dev.ntacadmin.core.organization.Organization o WHERE o.pid = "+pid).setMaxResults(1).uniqueResult();

然而，该应用程序有很多查询，这些查询都以相同的方式编写，并且在文档中它们不使用完全限定的类名。因此我可能遇到配置问题，希望有人能给我一个建议。

Organization.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="at.nettania.dev.ntacadmin.core.organization.Organization" table="NTACADMIN_ORGANIZATION">
        <id name="pid" type="int">
            <column name="PID" />
            <generator class="native" />
        </id>
        <property name="creationDate" type="java.util.Date">
            <column name="CREATIONDATE" />
        </property>
        <property name="changeDate" type="java.util.Date">
            <column name="CHANGEDATE" />
        </property>
        <property name="locale" type="java.util.Locale">
            <column name="LOCALE" />
        </property>
        <property name="timeZoneId" type="java.lang.String">
            <column name="TIMEZONEID" />
        </property>
        <property name="deleted" type="boolean">
            <column name="DELETED" />
        </property>
        <property name="enabled" type="boolean">
            <column name="ENABLED" />
        </property>
        <property name="name" type="java.lang.String">
            <column name="NAME" />
        </property>
        <property name="shortcut" type="java.lang.String">
            <column name="SHORTCUT" />
        </property>
</hibernate-mapping>

当前hibernate.cfg.xml文件的最重要设置如何：

<?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 name="">
  <!-- 
  <property name="hibernate.c3p0.min_size">5</property>
  <property name="hibernate.c3p0.max_size">20</property>
  <property name="hibernate.c3p0.timeout">300</property>
  <property name="hibernate.c3p0.max_statements">50</property>
  <property name="hibernate.c3p0.idle_test_period">3000</property>
    -->

  <!-- 
    Database configuration
  -->
  <property name="connection.url">jdbc:mysql://localhost/testing</property>
  <property name="connection.username">root</property>
  <property name="connection.driver_class">com.mysql.jdbc.Driver</property>
  <property name="dialect">org.hibernate.dialect.MySQLDialect</property>
  <property name="connection.password“>****</property>
  <property name="transaction.factory_class">org.hibernate.transaction.JDBCTransactionFactory</property>
  <property name="hibernate.jdbc.batch_size">0</property>
  <property name="hibernate.query.factory_class">org.hibernate.hql.internal.classic.ClassicQueryTranslatorFactory</property>
  <!--  thread is the short name for org.hibernate.context.ThreadLocalSessionContext and let Hibernate bind the session automatically to the thread -->
  <property name="current_session_context_class">thread</property>
  <!-- this will show us all sql statements -->
  <property name="hibernate.show_sql">false</property>
  <!-- automatic creation of tables -->
  <property name="hibernate.hbm2ddl.auto">update</property>
  <property name="hibernate.temp.use_jdbc_metadata_defaults">false</property>
  <!-- JDBC Batch Size -->
  <property name="hibernate.jdbc.batch_size">20</property>

  <!-- Organization mappings -->
  <mapping class="at.nettania.dev.ntacadmin.core.organization.Organization" resource="at/nettania/dev/ntacadmin/core/organization/Organization.hbm.xml"/>

 </session-factory>
</hibernate-configuration>

谢谢你，弗洛里安

Answer 1

我认为您需要从映射标记中删除class属性。资源是指在使用注释时使用xml文件和类。

Hibernate从4.3.6.Final迁移到5.0.9.Final之后的HQL查询问题

1 个答案: