【发布时间】：2015-04-23 11:42:13
【问题描述】：
我已经使用 maven 配置了多模块项目，所以我正在构建将在整个项目中使用的通用模块。
现在的问题是我在 META-INF/domain/orm 目录中有我的Category.orm.xml 文件，当我尝试从中读取命名查询BC_READ_ALL_CATEGORIES 时，它会抛出以下错误。
如果我尝试从注释中读取相同的命名查询，则没有问题发生。
请看看我在哪里弄错了谢谢...
Exception in thread "main" java.lang.IllegalArgumentException: No query defined for that name [BC_READ_ALL_CATEGORIES]
at org.hibernate.jpa.spi.AbstractEntityManagerImpl.buildQueryFromName(AbstractEntityManagerImpl.java:788)
at org.hibernate.jpa.spi.AbstractEntityManagerImpl.createNamedQuery(AbstractEntityManagerImpl.java:925)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.invoke(SharedEntityManagerCreator.java:291)
at com.sun.proxy.$Proxy36.createNamedQuery(Unknown Source)
at com.ornamentbazzar.common.catalog.dao.CategoryDaoImpl.readAllCategories(CategoryDaoImpl.java:53)
目录结构
这是 applicationContext-persistent.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd">
<context:component-scan
base-package="com.ornamentbazzar.*" />
<!-- this is also used we can used this also -->
<bean id="dataSource"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="com.mysql.jdbc.Driver" />
<property name="url" value="jdbc:mysql://localhost:3306/retailer" />
<property name="username" value="root" />
<property name="password" value="root" />
</bean>
<tx:annotation-driven transaction-manager="transactionManager" />
<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="entityManagerFactory" ref="entityManagerFactory" />
</bean>
<bean id="entityManagerFactory"
class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="persistenceXmlLocation" value="classpath:* META-INF/persistence.xml" />
<property name="dataSource" ref="dataSource" />
<property name="persistenceUnitName" value="ornament" />
<property name="packagesToScan" value="com.ornamentbazzar.*" />
<property name="jpaVendorAdapter">
<bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
<property name="showSql" value="true" />
<property name="databasePlatform" value="org.hibernate.dialect.MySQLDialect" />
</bean>
</property>
</bean>
<bean id="category" class="com.ornamentbazzar.common.catalog.dao.CategoryDaoImpl"></bean>
</beans>
persistent.xml
<?xml version="1.0" encoding="UTF-8"?>
<persistence xmlns="http://java.sun.com/xml/ns/persistence"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence
http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd"
version="2.0">
<persistence-unit name="ornament" transaction-type="RESOURCE_LOCAL">
<mapping-file>META-INF/domain/orm/Category.orm.xml</mapping-file>
<!-- <mapping-file>META-INF/product.orm.xml</mapping-file> -->
<class>com.ornamentbazzar.common.catalog.entity.Category</class>
<class>com.ornamentbazzar.common.catalog.entity.CategoryMapper</class>
<class>com.ornamentbazzar.common.catalog.entity.CategoryMapperPK</class>
<class>com.ornamentbazzar.common.catalog.entity.CategoryAttribute</class>
<class>com.ornamentbazzar.common.catalog.entity.CategoryMapper</class>
<properties>
<property name="hibernate.dialect" value="org.hibernate.dialect.MySQLDialect"></property>
<property name="hibernate.transaction.flush_before_completion"
value="false" />
<property name="hibernate.connection.autocommit" value="true" />
<property name="hibernate.cache.region.factory_class"
value="org.hibernate.cache.ehcache.SingletonEhCacheRegionFactory" />
<property name="hibernate.dialect" value="org.hibernate.dialect.MySQLDialect" />
<property name="hibernate.id.new_generator_mappings" value="true" />
<property name="hibernate.hbm2ddl.auto" value="create-drop" />
</properties>
</persistence-unit>
</persistence>
category.orm.xml
<?xml version="1.0" encoding="UTF-8"?>
<entity-mappings xmlns="http://java.sun.com/xml/ns/persistence/orm"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence/orm http://java.sun.com/xml/ns/persistence/orm_2_0.xsd"
version="2.0">
<named-query name="BC_READ_ALL_CATEGORIES">
<query>SELECT category FROM com.ornamentbazzar.common.catalog.entity.Category category ORDER BY category.id</query>
</named-query>
</entity-mappings>
测试应用
public class Test {
public static void main(String[] args) {
ApplicationContext applicationContext = new ClassPathXmlApplicationContext(
"applicationContext-persistence.xml");
CategoryDao categoryDao = (CategoryDao) applicationContext.getBean("category");
System.out.println(categoryDao.readAllCategories().size());
}
}
【问题讨论】：
标签： spring hibernate maven-3 jpa-2.0 persistence.xml