我不明白我的简单Spring MVC项目以及JPA存储库出了什么问题。你能给我一些提示吗?
领域:
领域:
package com.test.app;
@Entity
@Table(name = "foo_table")
public class FooDomain {
@Id
@Column(name = "id", unique = true, nullable = false)
private Integer id;
@Column(name = "text", nullable = false)
private String text;
// getters & setters here...
}
仓库
package com.test.app;
@RepositoryDefinition(domainClass=FooDomain.class, idClass=Long.class)
public interface FooRepository extends CrudRepository<FooDomain, Long> {}
控制器
@Controller
public class HomeController {
@Autowired
private FooRepository fooRepository;
@RequestMapping(value = "/", method = RequestMethod.GET)
public String home(Locale locale, Model model) {
model.addAttribute("rowsNumber", fooRepository.count());
return "home";
}
}
root-context.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns & xsi here...>
<context:annotation-config />
<!-- Defining folders containing bean components (@Component, @Service) -->
<context:component-scan base-package="ru.lexikos.app" />
<import resource="hibernate.xml" />
<import resource="repositories.xml" />
<context:component-scan base-package="com.test.app" />
</beans>
hibernate.xml
<?xml xmlns & xsi here...>
<context:property-placeholder location="classpath:db-connection.properties" />
<bean id="dataSource" class="org.apache.tomcat.dbcp.dbcp.BasicDataSource">
<property name="driverClassName" value="${jdbc.driverClassName}" />
<property name="url" value="${jdbc.url}" />
<property name="username" value="${jdbc.user}" />
<property name="password" value="${jdbc.pass}" />
</bean>
<bean id="sessionFactory"
class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="hibernateProperties">
<props>
<prop key="hibernate.hbm2ddl.auto">update</prop>
<prop key="hibernate.dialect">${hibernate.dialect}</prop>
</props>
</property>
</bean>
</beans>
repositories.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns & xsi here...>
<jpa:repositories base-package="com.test.app"/>
</beans>
异常
ERROR: org.springframework.web.context.ContextLoader - Context initialization failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jpaMapppingContext': Invocation of init method failed; nested exception is ja
va.lang.IllegalArgumentException: At least one JPA metamodel must be present!
Caused by: java.lang.IllegalArgumentException: At least one JPA metamodel must be present!