org.hibernate.MappingException: Unknown entity: FROM Role
<?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>
<!-- 数据库连接信息 -->
<property name="dialect">
org.hibernate.dialect.MySQL5InnoDBDialect
</property>
<!-- <property name="connection.url">jdbc:mysql://localhost/oa</property>
<property name="connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="connection.username">root</property> <property name="connection.password">leibin</property>
<property name="dialect">org.hibernate.dialect.MySQLDialect</property> <property
name="connection.driver_class">oracle.jdbc.driver.OracleDriver</property>
<property name="connection.url">jdbc:oracle:thin:@localhost:1521:SXT</property>
<property name="connection.username">scott</property> <property name="connection.password">tiger</property>
<property name="dialect">org.hibernate.dialect.OracleDialect</property> -->
<!-- 2.其他配置 -->
<property name="hbm2ddl.auto">update</property>
<!-- Echo all executed SQL to stdout -->
<property name="show_sql">true</property>
<!-- 3.导入映射文件 -->
<mapping resource="com/leibin/oa/domain/User.hbm.xml" />
<mapping resource="com/leibin/oa/domain/Role.hbm.xml" />
</session-factory>
</hibernate-configuration>
<?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: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-2.5.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd">
<context:component-scan base-package="com.leibin.oa"></context:component-scan>
<context:property-placeholder location="classpath:jdbc.properties"/>
<bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="configLocation" value="classpath:hibernate.cfg.xml"></property>
<property name="dataSource">
<bean class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="jdbcUrl" value="${jdbcUrl}"></property>
<property name="driverClass" value="${driverClass}"></property>
<property name="user" value="${user}"></property>
<property name="password" value="${password}"></property>
<!-- 其他配置 -->
<!--初始化时获取三个连接，取值应在minPoolSize与maxPoolSize之间。Default: 3 -->
<property name="initialPoolSize" value="3"></property>
<!--连接池中保留的最小连接数。Default: 3 -->
<property name="minPoolSize" value="3"></property>
<!--连接池中保留的最大连接数。Default: 15 -->
<property name="maxPoolSize" value="5"></property>
<!--当连接池中的连接耗尽的时候c3p0一次同时获取的连接数。Default: 3 -->
<property name="acquireIncrement" value="3"></property>
<!-- 控制数据源内加载的PreparedStatements数量。如果maxStatements与maxStatementsPerConnection均为0，则缓存被关闭。Default: 0 -->
<property name="maxStatements" value="8"></property>
<!--maxStatementsPerConnection定义了连接池内单个连接所拥有的最大缓存statements数。Default: 0 -->
<property name="maxStatementsPerConnection" value="5"></property>
<!--最大空闲时间,1800秒内未使用则连接被丢弃。若为0则永不丢弃。Default: 0 -->
<property name="maxIdleTime" value="1800"></property>
</bean>
</property>
</bean>
<bean id="txManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory"></property>
</bean>
<tx:annotation-driven transaction-manager="txManager"/>
</beans>
package com.leibin.oa.domain;
public class Role {
private Long id;
private String name;
private String description;
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
}
<?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 package="com.leibin.oa.domain">
<class name="Role" table="oa_role">
<id name="id">
<generator class="native"></generator>
</id>
<property name="name"></property>
<property name="description"></property>
</class>
</hibernate-mapping>
