[英]org.hibernate.MappingException: Unknown entity hibernate4 spring4
I am getting the exception org.hibernate.MappingException: Unknown entity com.pro.entity.User 我收到异常org.hibernate.MappingException:未知实体com.pro.entity.User
I have seen similar posts but almost all of them provides solution to change @Entity annotation to javax.persistence instead of hibernate. 我见过类似的文章,但是几乎所有文章都提供了将@Entity注释更改为javax.persistence而不是休眠的解决方案。 Which in my case wasn't useful as I am using correct annotation since the beginning.
对于我来说这没有用,因为从一开始我就使用正确的注释。 Here's the code for entity class dao and servlet context.
这是实体类dao和servlet上下文的代码。
package com.pro.entity;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Table;
@Entity
@Table(name="user")
public class User {
private static final long serialVersionUID = 1L;
@Id
@Column(name="userid")
@GeneratedValue(strategy=GenerationType.IDENTITY)
private String id;
@Column(name="password")
private String password;
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
}
Dao class code: 道类代码:
public User getUser(String userid)
{
Session session = this.sessionFactory.getCurrentSession();
User user = (User)session.load(User.class, userid);
return user;
}
context.xml context.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans:beans xmlns="http://www.springframework.org/schema/mvc"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:beans="http://www.springframework.org/schema/beans"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:context="http://www.springframework.org/schema/context"
xmlns:jdbc="http://www.springframework.org/schema/jdbc"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.0.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
http://www.springframework.org/schema/orm
http://www.springframework.org/schema/orm/spring-orm-4.0.xsd
http://www.springframework.org/schema/jdbc
http://www.springframework.org/schema/jdbc/spring-jdbc-4.0.xsd">
<beans:bean
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<beans:property name="prefix" value="/WEB-INF/views/" />
<beans:property name="suffix" value=".jsp" />
</beans:bean>
<beans:bean id="dataSource"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<beans:property name="driverClassName" value="com.mysql.jdbc.Driver" />
<beans:property name="url"
value="jdbc:mysql://localhost:3306/pro?useSSL=false" />
<beans:property name="username" value="user" />
<beans:property name="password" value="password" />
</beans:bean>
<beans:bean id="sessionFactory"
class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<beans:property name="dataSource" ref="dataSource"/>
<beans:property name="hibernateProperties">
<beans:props>
<beans:prop key="hibernate.dialect">${hibernate.dialect}</beans:prop>
<beans:prop key="hibernate.show_sql">${hibernate.show_sql}</beans:prop>
</beans:props>
</beans:property>
</beans:bean>
<beans:bean id="transactionManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager">
<beans:property name="sessionFactory" ref="sessionFactory"></beans:property>
</beans:bean>
<tx:annotation-driven transaction-manager="transactionManager"/><tx:annotation-driven/>
<beans:bean id="persistenceExceptionTranslationPostProcessor" class="org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor"></beans:bean>
<context:component-scan base-package="com.pro.controller" />
<mvc:resources mapping="/resources/**" location="/resources/" />
<mvc:annotation-driven />
</beans:beans>
chnage <context:component-scan base-package="com.pro.controller" />
to <context:component-scan base-package="com.pro" />
in context.xml 将
<context:component-scan base-package="com.pro.controller" />
更改为context.xml中的<context:component-scan base-package="com.pro" />
it should work then 然后它应该工作
Thank you guys. 感谢大伙们。 I got the solution.... just needed to add following in my context.xml file
我得到了解决方案...。只需在我的context.xml文件中添加以下内容
<beans:property name="annotatedClasses">
<beans:list>
<beans:value>com.pro.User</beans:value>
</beans:list>
</beans:property>
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.