请教(Exception in thread "main" org.hibernate.MappingException: Unknown entity)

嘿嘿墨 2011-03-25 03:21:51
请教错误原因？


Exception in thread "main" org.hibernate.MappingException: Unknown entity: sys.model.User

	at org.hibernate.impl.SessionFactoryImpl.getEntityPersister(SessionFactoryImpl.java:580)

	at org.hibernate.event.def.DefaultLoadEventListener.onLoad(DefaultLoadEventListener.java:91)

	at org.hibernate.impl.SessionImpl.fireLoad(SessionImpl.java:905)

	at org.hibernate.impl.SessionImpl.get(SessionImpl.java:842)

	at org.hibernate.impl.SessionImpl.get(SessionImpl.java:835)

	at sys.dao.impl.HibernateDao.get(HibernateDao.java:40)

	at sys.dao.impl.HibernateDao.get(HibernateDao.java:48)

	at sys.dao.impl.HibernateDao$$FastClassByCGLIB$$abf5ef51.invoke(<generated>)

	at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)

	at org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:688)

	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)

	at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:110)

	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)

	at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89)

	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)

	at org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:621)

	at sys.dao.impl.UserDaoImpl$$EnhancerByCGLIB$$6951f724.get(<generated>)

	at sys.service.impl.UserServiceImpl.getUser(UserServiceImpl.java:47)

	at sys.service.impl.UserServiceImpl$$FastClassByCGLIB$$9ff87ad6.invoke(<generated>)

	at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)

	at org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:688)

	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)

	at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:110)

	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)

	at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89)

	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)

	at org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:621)

	at sys.service.impl.UserServiceImpl$$EnhancerByCGLIB$$8317f35e.getUser(<generated>)

	at test.Test.main(Test.java:24)



applicationContext.xm配置文件


<?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:jee="http://www.springframework.org/schema/jee" xmlns:tx="http://www.springframework.org/schema/tx"

	xmlns:context="http://www.springframework.org/schema/context" xmlns:aop="http://www.springframework.org/schema/aop" 

	xsi:schemaLocation="http://www.springframework.org/schema/beans 

	http://www.springframework.org/schema/beans/spring-beans-2.5.xsd 

	http://www.springframework.org/schema/tx 

	http://www.springframework.org/schema/tx/spring-tx-2.5.xsd 

	http://www.springframework.org/schema/jee 

	http://www.springframework.org/schema/jee/spring-jee-2.5.xsd 

	http://www.springframework.org/schema/aop 

	http://www.springframework.org/schema/aop/spring-aop-2.5.xsd 

	http://www.springframework.org/schema/context 

	http://www.springframework.org/schema/context/spring-context-2.5.xsd" 

	default-autowire="byName" default-lazy-init="true">



	<!-- 定义受环境影响易变的变量 -->

	<bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">

		<property name="locations">

			<list>

				<!-- 标准配置 -->

				<value>classpath:jdbc.properties</value>

			</list>

		</property>

	</bean>

	

	<!-- 使用annotation 自动注册bean,并保证@Required,@Autowired的属性被注入 -->

	<context:component-scan base-package="sys" />

	

	<!-- 数据源配置,使用应用内的DBCP数据库连接池 -->

	<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">

		<!-- Connection Info -->

		<property name="driverClassName" value="${jdbc.driver}" />

		<property name="url" value="${jdbc.url}" />

		<property name="username" value="${jdbc.username}" />

		<property name="password" value="${jdbc.password}" />



		<!-- Connection Pooling Info -->

		<property name="initialSize" value="5" />

		<property name="maxActive" value="100" />

		<property name="maxIdle" value="30" />

		<property name="maxWait" value="500" />

		<property name="defaultAutoCommit" value="false" />

	</bean>



	<!-- Hibernate配置 -->

	<bean id="sessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">

		<property name="dataSource" ref="dataSource" />

		<property name="hibernateProperties">

			<props>

				<prop key="hibernate.dialect">${hibernate.dialect}</prop>

				<prop key="hibernate.show_sql">${hibernate.show_sql}</prop>

			</props>

		</property>

		<property name="packagesToScan" value="sys.model.*" />

	</bean>



	<!-- 事务管理器配置,单数据源事务 -->

	<bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">

		<property name="sessionFactory" ref="sessionFactory" />

	</bean>



	<!-- 使用annotation定义事务 -->

  <!--  <tx:annotation-driven transaction-manager="transactionManager" proxy-target-class="true"/> -->



	<aop:config proxy-target-class="true">

		<aop:advisor pointcut="execution(* sys.service..*Service.*(..))" advice-ref="txAdvice" />

		<aop:advisor pointcut="execution(* sys.dao..*Dao.*(..))" advice-ref="txAdvice" />

	</aop:config> 



	<tx:advice id="txAdvice">

		<tx:attributes>

			<tx:method name="get*" read-only="true" />

			<tx:method name="find*" read-only="true" />

			<tx:method name="query*" read-only="true" />

			<tx:method name="is*" read-only="true" />

			<tx:method name="*" propagation="REQUIRED" />

		</tx:attributes>

	</tx:advice>

</beans>


测试类代码


package test;



import org.springframework.context.ApplicationContext;

import org.springframework.context.support.ClassPathXmlApplicationContext;



import sys.model.Role;

import sys.model.User;

import sys.service.RoleService;

import sys.service.UserService;







/**

 * 

 * @author 

 * @version 1.0

 */

public class Test {



	public static void main(String[] args) {

		ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");

		UserService userManager = (UserService)context.getBean("userService");

		RoleService roleManager = (RoleService)context.getBean("roleService");

		User user = userManager.getUser(1);

		System.out.println("ID"+user.getId()+" 111"+user.getName());

		Role role = roleManager.getRole(1);

		System.out.println("ID"+role.getId()+" 222 "+role.getName());

	}

}


目录结构

...全文
247 6 打赏 收藏 转发到动态 举报
写回复
用AI写文章
6 条回复
切换为时间正序
请发表友善的回复…
发表回复
sjlzcj 2011-03-26
  • 打赏
  • 举报
 回复
[Quote=引用 5 楼 msgissatan 的回复:]

引用 4 楼 sjlzcj 的回复:
<property name="packagesToScan" value="sys.model.*" />

改成

<property name="mappingResources" value="sys.model.User" /> 试试呢



sys.model.User 还是不行
不过 改成 sys.* 就可以了 原因我……
[/Quote]
你确定改成我给你那个不行 注意 name 里有变化的

用你那个 name的 value 你改成 sys.model 应该就可以的
嘿嘿墨 2011-03-25
  • 打赏
  • 举报
 回复
[Quote=引用 4 楼 sjlzcj 的回复:]
<property name="packagesToScan" value="sys.model.*" />

改成

<property name="mappingResources" value="sys.model.User" /> 试试呢
[/Quote]


sys.model.User 还是不行
不过 改成 sys.* 就可以了 原因我也不知道 谢谢
sjlzcj 2011-03-25
  • 打赏
  • 举报
 回复

<property name="packagesToScan" value="sys.model.*" />

改成

<property name="mappingResources" value="sys.model.User" /> 试试呢
嘿嘿墨 2011-03-25
  • 打赏
  • 举报
 回复
[Quote=引用 1 楼 sjlzcj 的回复:]
LZ 自己不看 异常信息吗？？？　多练习　自己看

Exception in thread "main" org.hibernate.MappingException: Unknown entity: sys.model.User

这句已经说的很明白了
[/Quote]

有用注解配置呀



package sys.model;



import java.io.Serializable;



import javax.persistence.Column;

import javax.persistence.Entity;

import javax.persistence.Id;

import javax.persistence.JoinColumn;

import javax.persistence.ManyToOne;

import javax.persistence.Table;



/**

 * 人员管理

 * @author 菠萝大象

 */

@Entity

@Table(name = "user")

public class User implements Serializable{



	/**

	 * 

	 */

	private static final long serialVersionUID = 1L;

	

	@Id

	private int id; //主键

	@Column

	private String name; //登录用户

	

	@ManyToOne

	@JoinColumn(name = "role_id")

	private Role role; //角色ID

	



	public int getId() {

		return id;

	}

	public void setId(int id) {

		this.id = id;

	}

	public String getName() {

		return name;

	}

	public void setName(String name) {

		this.name = name;

	}

	public Role getRole() {

		return role;

	}

	public void setRole(Role role) {

		this.role = role;

	}

}
im110 2011-03-25
  • 打赏
  • 举报
 回复
sys.model.User这个类应该有一个User.hbm.xml，将其放到sessionFactory的定义中。
sjlzcj 2011-03-25
  • 打赏
  • 举报
 回复
LZ 自己不看 异常信息吗？？？　多练习　自己看

Exception in thread "main" org.hibernate.MappingException: Unknown entity: sys.model.User

这句已经说的很明白了
Exception in thread "main" org.hibernate.MappingException: Unknown entity: com.mao.PersonSet
Exception in thread "main" org.hibernate.MappingException: Unknown entity: XXX
Hibernate 报错：Exception in thread "main" org.hibernate.MappingException: Unknown entity: cn.hb.entity
起因:尝试写了下hibernate入门环境搭建，运行测试时，创建表成功打印了sql语句，但是发现报错：Exception in thread “main” org.hibernate.MappingException: Unknown entity: cn.hb.entity 网上百度了一些解决...
Hibernate报错 org.hibernate.MappingException: Unknown entity:
Hibernate报错org.hibernate.MappingException: Unknown entity: XXX的原因
hibernate运行报错Exception in thread “main” org.hibernate.MappingException: Unknown entity
hibernate运行报错Exception in thread “main” org.hibernate.MappingException: Unknown entity 我相信有很多人会出现这个错误 1.一定要保证你的hibernate.cfg.xml配置文件一定要映射你的实体类 &...
org.hibernate.MappingException: Unknown entity 该怎么解决
org.hibernate.MappingException: Unknown entity异常是新手学习hibernate的时候经常遇到的问题。 org.hibernate.MappingException: Unknown entity 异常详细信息如下 at org.hibernate.impl.SessionFactoryImpl....
Java EE

67,513

社区成员

225,878

社区内容

发帖
与我相关
我的任务
社区描述
J2EE只是Java企业应用。我们需要一个跨J2SE/WEB/EJB的微容器，保护我们的业务核心组件（中间件），以延续它的生命力，而不是依赖J2SE/J2EE版本。
社区管理员
  • Java EE
加入社区
  • 近7日
  • 近30日
  • 至今

加载中

查看更多榜单
社区公告
暂无公告

试试用AI创作助手写篇文章吧

+ 用AI写文章