Struts+Spring+Hibernate整合

1.导入jar包

Struts的jar包：

Spring的jar包：

Hibernate的jar包：

注意：只保留一个高版本的common-logging.jar包，Struts的jar包中struts2-spring-plugin-2.1.8.jar是必须要导入的，因为其是整合Struts和Spring的一个关键性jar包

2.Hibernate和Spring的整合

建议先整合Spring和Hibernate。

2.1方法一 保留hibernate.cfg.xml文件

Hibernate的hibernate.cfg.xml代码不变，如下示例：

1. <!DOCTYPE hibernate-configuration PUBLIC

2. "-//Hibernate/Hibernate Configuration DTD 3.0//EN"

3. "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">

4.  

5. <!-- Generated by MyEclipse Hibernate Tools. -->

6. <hibernate-configuration>

7.  

8. <session-factory>

9. <property name="connection.driver_class">

10. oracle.jdbc.driver.OracleDriver

11. </property>

12. <property name="connection.url">

13. jdbc:oracle:thin:@localhost:1521:orcl

14. </property>

15. <property name="connection.username">admin</property>

16. <property name="connection.password">admin</property>

17.  

18. <property name="hibernate.c3p0.max_size">20</property>

19. <property name="hibernate.c3p0.max_statements">1</property>

20. <property name="hibernate.c3p0.timeout">1800</property>

21. <property name="hibernate.c3p0.max_statements">50</property>

22.  

23. <property name="hibernate.dialect">

24. org.hibernate.dialect.Oracle10gDialect

25. </property>

26. <property name="show_sql">true</property>

27. <property name="hibernate.hbm2ddl.auto">update</property>

28.  

29. <mapping resource="com/wzm/bean/User.hbm.xml"/>

30.  

31. </session-factory>

32.  

33. </hibernate-configuration>

Spring的application.xml文件整合Hibernate代码如下：

1. <beans

2. xmlns="http://www.springframework.org/schema/beans"

3. xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

4. xmlns:p="http://www.springframework.org/schema/p"

5. xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd">

6.  

7. <bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">

8. <property name="configLocation" value="classpath:hibernate.cfg.xml">

9. </property>

10. </bean>

11. </beans>

2.2 方法二 废弃使用hibernate.cfg.xml文件

将数据库的配置放在Spring的配置文件application.xml文件中，代码如下：

1. <beans

2. xmlns="http://www.springframework.org/schema/beans"

3. xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

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

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

6. xmlns:tx="http://www.springframework.org/schema/tx"

7. xmlns:p="http://www.springframework.org/schema/p"

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

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

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

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

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

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

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

15. http://www.springframework.org/schema/aop/spring-aop-3.0.xsd">

16.  

17. <context:component-scan base-package="com.wzm"/>

18.  

19. <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource" destroy-method="close">

20. <property name="driverClass" value="oracle.jdbc.driver.OracleDriver"/>

21. <property name="jdbcUrl" value="jdbc:oracle:thin:@localhost:1521:orcl"/>

22. <property name="user" value="admin"/>

23. <property name="password" value="admin"/>

24. <property name="maxPoolSize" value="20"/>

25. <property name="minPoolSize" value="1"/>

26. <property name="initialPoolSize" value="1"/>

27. <property name="maxIdleTime" value="20"/>

28. </bean>

29. <bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">

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

31. <property name="mappingResources">

32. <list>

33. <value>com/wzm/bean/User.hbm.xml</value>

34. </list>

35. </property>

36. <property name="hibernateProperties">

37. <value>

38. hibernate.dialect=org.hibernate.dialect.Oracle10gDialect

39. hibernate.hbm2ddl.auto=update

40. hibernate.show_sql=true

41. </value>

42. </property>

43. </bean>

44. </beans>

2.3 使用properties文件提供数据库接口

这里的接口并非Java中的接口，而是指提供可扩展的接入点，properties文件中的代码如下：

1. URL=jdbc:oracle:thin:@localhost:1521:orcl

2. DRIVER=oracle.jdbc.driver.OracleDriver

3. USERNAME=admin

4. PASSWORD=admin

5.  

6. #URL=jdbc:jtds:sqlserver://localhost:1433/qhit02

7. #DRIVER=net.sourceforge.jtds.jdbc.Driver

8. #USERNAME=sa

9. #PASSWORD=sa1234

该文件中提供了Oracle11g和SQL Server两种数据库接口（接入点），甚至可以写入更多的数据库的信息，“#”是注销，即其后的代码不可用。
Spring的application.xml中的配置代码如下：

1. <beans

2. xmlns="http://www.springframework.org/schema/beans"

3. xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

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

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

6. xmlns:tx="http://www.springframework.org/schema/tx"

7. xmlns:p="http://www.springframework.org/schema/p"

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

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

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

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

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

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

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

15. http://www.springframework.org/schema/aop/spring-aop-3.0.xsd">

16.  

17. <context:component-scan base-package="com.wzm"/>

18. <context:property-placeholder location="classpath:DBOption.properties"/>

19.  

20. <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource" destroy-method="close">

21. <property name="driverClass" value="${DRIVER}"/>

22. <property name="jdbcUrl" value="${URL}"/>

23. <property name="user" value="${USERNAME}"/>

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

25. <property name="maxPoolSize" value="20"/>

26. <property name="minPoolSize" value="1"/>

27. <property name="initialPoolSize" value="1"/>

28. <property name="maxIdleTime" value="20"/>

29. </bean>

30. <bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">

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

32. <property name="mappingResources">

33. <list>

34. <value>com/wzm/persistence/entiy/User.hbm.xml</value>

35. </list>

36. </property>

37. <property name="hibernateProperties">

38. <value>

39. hibernate.dialect=org.hibernate.dialect.Oracle10gDialect

40. hibernate.hbm2ddl.auto=update

41. hibernate.show_sql=true

42. </value>

43. </property>

44. </bean>

45. </beans>

3.整合Struts和Spring

整合Struts和Spring时，只需在WebRoot\WEB-INF\web.xml文件中加入Struts的过滤器和Spring的监听器即可，代码如下：

1. <filter>

2. <filter-name>struts2</filter-name>

3. <filter-class>

4. org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter

5. </filter-class>

6. </filter>

7. <filter-mapping>

8. <filter-name>struts2</filter-name>

9. <url-pattern>/*</url-pattern>

10. </filter-mapping>

11.  

12. <!-- 配置监听器 -->

13. <context-param>

14. <param-name>contextConfigLocation</param-name>

15. <param-value>

16. classpath:application.xml

17. <span style="background-color: rgb(255, 0, 0);">（注意：配置多个Spring Bean文件时，这样写classpath:applicationContext.xml,classpath:bean.xml）</span>

18. </param-value>

19. </context-param>

20. <listener>

21. <listener-class>

22. org.springframework.web.context.ContextLoaderListener

23. </listener-class>

• </listener>