ssh的整合主要是spring与hibernate + spring与struts的整合，struts的逻辑中使用业务层的对象只需使用spring的ioc得到需要的依赖对象。
一、spring与hibernate
spring与hibernate的整合有2种方式，一种是把hibernate的配置放在spring的配置中，一种是独立在spring外
hibernate独立在外：
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" xmlns:aop="http://www.springframework.org/schema/aop" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd"> <bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean"> <property name="configLocations"> <value>classpath:hibernate.cfg.xml</value> </property> </bean> </bean> </beans>
使用注解：
<!-- sessionFactory定义 -->
<bean id="sessionFactory"
class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean"><!--使用注解-->
<property name="configLocation" value="classpath:hibernate.cfg.xml"></property>
<property name="packagesToScan">
<list>
<value>cn.jiabeis.s2shstudy.model</value>
</list>
</property>hibernate.cfg.xml
<?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>
<!-- Database connection settings -->
<property name="connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="connection.url">jdbc:mysql://localhost:3306/hibernate</property>
<property name="connection.username">root</property>
<property name="connection.password">***</property>
<!-- JDBC connection pool (use the built-in) -->
<property name="connection.pool_size">10</property>
<!-- SQL dialect -->
<property name="dialect">org.hibernate.dialect.MySQLDialect</property>
<!-- Enable Hibernate's automatic session context management -->
<property name="current_session_context_class">thread</property>
<!-- Disable the second-level cache -->
<property name="cache.provider_class">org.hibernate.cache.NoCacheProvider</property>
<!-- Echo all executed SQL to stdout -->
<property name="show_sql">true</property>
<property name="format_sql">true</property>
<!-- Drop and re-create the database schema on startup -->
<property name="hbm2ddl.auto">update</property>
<mapping resource="com/model/User.hbm.xml"/>
<!-- <mapping class="com.model.User"/>-->
</session-factory>
</hibernate-configuration>
hibernate的配置整合在spring中：
<bean id="dataSource"
class="org.apache.commons.dbcp.BasicDataSource"
destroy-method="close">
<property name="driverClassName" value="${jdbc.driverClassName}"></property>
<property name="url" value="${jdbc.url}"></property>
<property name="username" value="${jdbc.username}"></property>
<property name="password" value="${jdbc.password}"></property>
</bean>
<!-- 配置 hibernate sessionFactory -->
<bean id="sessionFactory"
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="dataSource"> <!--可使用proxool等来作为数据源-->
<ref bean="dataSource" />
</property>
<property name="mappingDirectoryLocations"> <!--可使用mappingResources直接写出配置文件的位置-->
<list>
<value>classpath:/config/hbm/</value>
</list>
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
<prop key="hibernate.connection.release_mode">auto</prop>
<prop key="hibernate.show_sql">true</prop>
<prop key="connection.useUnicode">true</prop>
<prop key="connection.characterEncoding">gbk</prop>
<!--出现中文乱码的问题 -->
<prop key="hibernate.query.factory_class">
org.hibernate.hql.classic.ClassicQueryTranslatorFactory</prop>
</props>
</property>
</bean>
数据源的配置还可通过属性文件来获得：
<context:property-placeholder location="classpath:jdbc.properties"/>
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
destroy-method="close">
<property name="driverClassName" value="${jdbc.driverClassName}" />
<property name="url" value="${jdbc.url}" />
<property name="username" value="${jdbc.username}" />
<property name="password" value="${jdbc.password}" />
</bean>jdbc.driverClassName=com.mysql.jdbc.Driver jdbc.url=jdbc/:mysql/://localhost/:3306/spring jdbc.username=root jdbc.password=31415926
通过Spring提供的HibernateTemplate操作数据库：
<bean id="hibernateTemplate" class="org.springframework.orm.hibernate3.HibernateTemplate">
<property name="sessionFactory" ref="sessionFactory"></property>
</bean>
事务管理：
<!-- 事务处理 -->
<bean id ="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name ="sessionFactory">
<ref local ="sessionFactory" />
</property >
</bean >
<!-- 自动创建事务代理 -->
<bean id ="transactionInterceptor" class="org.springframework.transaction.interceptor.TransactionInterceptor">
<property name ="transactionManager" ref ="transactionManager" />
<property name ="transactionAttributes">
<props >
<prop key ="delete*"> PROPAGATION_REQUIRED</prop >
<prop key ="add*"> PROPAGATION_REQUIRED</prop >
<prop key ="update*"> PROPAGATION_REQUIRED</prop >
<prop key ="save*"> PROPAGATION_REQUIRED</prop >
<prop key ="find*"> PROPAGATION_REQUIRED,readOnly</prop >
<prop key ="*"> PROPAGATION_REQUIRED</prop >
</props >
</property >
</bean >使用HibernateDaoSupport类：
@Component("logDAO")
public class LogDAOImpl extends HibernateDaoSupport implements LogDAO {
public void save(Log log) {
this.getHibernateTemplate().save(log);
}
}<bean id="hibernateTemplate" class="org.springframework.orm.hibernate3.HibernateTemplate"> <property name="sessionFactory" ref="sessionFactory"></property> </bean> <bean id="logDao" class="com.zchen.spring.LogDaoImpl"> <property name="hibernateTemplate" ref="hibernateTemplate"></property> </bean>
