<hibernate-configuration>
<session-factory >
<!-- Database connection settings -->
<property name="connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="connection.url">jdbc:mysql://localhost:3306/
databaseName?useSSL=false</property>
<property name="connection.username">root</property>
<property name="connection.password">123456</property>
<property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
<property name="show_sql">true</property>
<!-- Drop and re-create the database schema on startup -->
<property name="hbm2ddl.auto">update</property>
<!-- mapping配置 -->
<!-- 1、xml方式
<mapping resource="model/Student.hbm.xml"/>
-->
<!-- 2、注解方式 -->
<mapping class="model.Student"/>
<mapping class="model.Contact"/>
</session-factory>
</hibernate-configuration>
6.编写初始化SessionFactory和获取Session的代码。
SessionFactory：连接池
Session：连接
public class HibernateUtil {
private static SessionFactory sessionFactory;
private static SessionFactory buildSessionFactory() {
try {
Configuration configuration = new Configuration();
configuration.configure("hibernate.cfg.xml");
ServiceRegistry serviceRegistry = new StandardServiceRegistryBuilder()
.applySettings(configuration.getProperties()).build();
SessionFactory sessionFactory = configuration
.buildSessionFactory(serviceRegistry);
return sessionFactory;
} catch (Throwable ex) {
throw new ExceptionInInitializerError(ex);
}
}
public static SessionFactory getSessionFactory() {
if (sessionFactory == null)
sessionFactory = buildSessionFactory();
return sessionFactory;
}
public static Session openSession() {
return getSessionFactory().openSession();
}
}
7、在JSP页面测试配置
2、配置xml文件
(1) web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app id="WebApp_9" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<display-name>Struts Blank</display-name>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<filter>
<filter-name>struts2</filter-name>
<filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
</welcome-file-list>
</web-app>
(2) struts.xml
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
"http://struts.apache.org/dtds/struts-2.3.dtd">
<struts>
<package name="all" namespace="/" extends="struts-default">
</package>
</struts>
(3) hibernate-cfg.xml
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<!-- Database connection settings -->
<property name="connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="connection.url">jdbc:mysql://localhost:3306/album</property>
<property name="connection.username">root</property>
<property name="connection.password">12345678</property>
<property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
<property name="show_sql">true</property>
<!-- Drop and re-create the database schema on startup -->
<property name="hbm2ddl.auto">update</property>
<mapping class="net.xinqushi.model.User"/>
</session-factory>
</hibernate-configuration>
(4)applicationContext.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"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd">
</beans>
struts.xml和 hibernate-cfg.xml放在src目录下
applicationContext.xml放在 WEB-INF目录下
三、Spring与Hibernate整合
1、加入struts2-spring-plugin-2.3.24.jar插件包，配置文件不需要整合,整合过程比较简单。
web.xml中配置listener：
<listener>
<!-- 启动时会加载，关闭时卸载 -->
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
ContextLoaderListener实现ServletContextListener接口,在服务器启动时加载，
默认自动载入置于WEB-INF目录下的Spring配置文件applicationContext.xml
2、引入申明式事务支持的XML命名空间
xmlns:tx="http://www.springframework.org/schema/tx"
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-4.1.xsd
3、dataSource配置
占位符$
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-
method="close">
<!-- 初始化连接数量； -->
<property name="initialSize" value="0" />
<!-- 最大并发连接数 -->
<property name="maxActive" value="20" />
<!-- 最大空闲连接数 -->
<property name="maxIdle" value="20" />
<!-- 最小空闲连接数 -->
<property name="minIdle" value="0" />
<!-- 最大等待时长 -->
<property name="maxWait" value="60000" />
<!-- 超过时间限制是否回收 -->
<property name="removeAbandoned" value="true" />
<!-- 超过时间限制多长； -->
<property name="removeAbandonedTimeout" value="180"/>
<!-- 数据源连接参数配置； -->
<property name="username" value="${db.username}"/>
<property name="url" value="${db.url}"/>
<property name="password" value="${db.password}"/>
<property name="driverClassName" value="${db.driverClassName}"/>
</bean>
4、读取外部属性文件，获取数据源参数
<context:property-placeholder location="classpath:dataSource.properties/>
在项目src目录下创建
dataSource.properties文件，设置占位符后参数： db.username=root
db.password=123456
db.url=jdbc:mysql://localhost:3306/album?useSSL=false
db.driverClassName=com.mysql.jdbc.Driver
hibernate.dialect=org.hibernate.dialect.MySQLDialect
hibernate.show_sql=true
hibernate.hbm2ddl.auto=update
hibernate.format_sql=true
5、sessionFactory配置
<bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSource"/>
<property name="packagesToScan" value="net.xinqushi.model"/>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">${hibernate.dialect}</prop>
<prop key="hibernate.show_sql">${hibernate.show_sql}</prop>
<prop key="hibernate.hbm2ddl.auto">${hibernate.hbm2ddl.auto}</prop>
<prop key="hibernate.format_sql">${hibernate.format_sql}</prop>
</props>
</property>
</bean>
6、配置事务管理器
<bean id="transactionManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory"/>
</bean>
7、初始化hibernateTemplate
<bean id="hibernateTemplate" class="org.springframework.orm.hibernate4.HibernateTemplate">
<property name="sessionFactory" ref="sessionFactory"></property>
</bean>
8、配置事务管理
<!-- 定义切面 -->
<aop:config>
<aop:pointcut expression="execution(* net.xinqushi.service.impl.*.* (..))" id="txPointCut"/>
<aop:advisor advice-ref="txAdvice" pointcut-ref="txPointCut"/>
</aop:config>
<!-- 声明式事务 -->
<tx:advice id="txAdvice" transaction-manager="transactionManager">
<tx:attributes>
<tx:method name="add*" propagation="REQUIRED"/>
<tx:method name="get*" read-only="true" propagation="REQUIRED"/>
</tx:attributes>
</tx:advice>
