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S2SH整合

Struts2、Spring、Hibernate三大框架在一个项目中的具体职责分配如下:

三大框架整合,导入各个框架和整合所需的包(本项目采用的是Struts2.3+spring3.0+hibernate)

1.添加Spring框架

1)编写applicationContext-bean.xml文件

<?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:p="http://www.springframework.org/schema/p"    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">        <bean id="date" class="java.util.Date"></bean>    </beans>

2)测试

public class SSHTest {        @Test    public void spring(){        ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext-*.xml");        System.out.println(context.getBean("date"));    }    }

若测试通过,则spring框架添加成功

2.添加Hibernate框架

1)添加hibernate配置文件

<?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>    <property name="dialect">        org.hibernate.dialect.MySQLDialect    </property>    <property name="connection.url">        jdbc:mysql://localhost:3306/shop    </property>    <property name="connection.username">root</property>    <property name="connection.password">123456</property>    <property name="connection.driver_class">        com.mysql.jdbc.Driver    </property>    <property name="c3p0.initialPoolSize">5</property>    <property name="c3p0.minPoolSize">10</property>    <property name="c3p0.maxPoolSize">20</property>    <property name="c3p0.checkoutTimeout">6000</property>    <property name="show_sql">true</property></session-factory></hibernate-configuration>

该配置文件中采用了数据库连接池

2)编写测试工具类

HibernateSessionFactory.java

package cn.lsl.test;import org.hibernate.HibernateException;import org.hibernate.Session;import org.hibernate.cfg.Configuration;public class HibernateSessionFactory {        private static String CONFIG_FILE_LOCATION = "/hibernate.cfg.xml";    private static final ThreadLocal<Session> threadLocal = new ThreadLocal<Session>();    private static Configuration configuration = new Configuration();    private static org.hibernate.SessionFactory sessionFactory;    private static String configFile = CONFIG_FILE_LOCATION;    static {        try {            configuration.configure(configFile);            sessionFactory = configuration.buildSessionFactory();        } catch (Exception e) {            System.err.println("%%%% Error Creating SessionFactory %%%%");            e.printStackTrace();        }    }    private HibernateSessionFactory() {    }    public static Session getSession() throws HibernateException {        Session session = (Session) threadLocal.get();        if (session == null || !session.isOpen()) {            if (sessionFactory == null) {                rebuildSessionFactory();            }            session = (sessionFactory != null) ? sessionFactory.openSession()                    : null;            threadLocal.set(session);        }        return session;    }        public static void rebuildSessionFactory() {        try {            configuration.configure(configFile);            sessionFactory = configuration.buildSessionFactory();        } catch (Exception e) {            System.err.println("%%%% Error Creating SessionFactory %%%%");            e.printStackTrace();        }    }        public static void closeSession() throws HibernateException {        Session session = (Session) threadLocal.get();        threadLocal.set(null);        if (session != null) {            session.close();        }    }        public static org.hibernate.SessionFactory getSessionFactory() {        return sessionFactory;    }        public static void setConfigFile(String configFile) {        HibernateSessionFactory.configFile = configFile;        sessionFactory = null;    }        public static Configuration getConfiguration() {        return configuration;    }}

3)测试

@Test    public void hibernate(){        System.out.println(HibernateSessionFactory.getSessionFactory());    }

若测试通过,则Hibernate框架添加成功

3.Hibernate与Spring框架整合

1)配置LocalSessionFactoryBean

<!--         1: Spring来管理Hibernate配置文件,就是取代了HibernateSessionFactory     -->    <bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">         <!-- 加载hibernate的配置文件 -->         <property name="configLocation" value="classpath:hibernate.cfg.xml" />     </bean>

2)配置hibernateTemplate

<!--          2.通过sessionFactory,返回session,在Spring由HibenrateTemplate封装session      -->      <bean id="hibernateTemplate" class="org.springframework.orm.hibernate3.HibernateTemplate">          <!-- 需要sessionFactory -->          <property name="sessionFactory" ref="sessionFactory" />     </bean>

3)配置事务管理器

 <!--          3.配置事物管理器transactionManager         如果要实现Spring的AOP声明式事务,则需要Spring提供事物管理器,所有session都是从sessionFactory创建的,        事务管理器,需要控制sessionFactory      -->     <bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">         <property name="sessionFactory" ref="sessionFactory" />     </bean>

4)配置事物通知

<!-- 4 配置事务通知: 事务由事务管理器提供 -->     <tx:advice id="advice" transaction-manager="transactionManager">         <tx:attributes>             <tx:method name="save*" propagation="REQUIRED"/>             <tx:method name="delete*" propagation="REQUIRED"/>             <tx:method name="update*" propagation="REQUIRED"/>             <tx:method name="*" propagation="NEVER" read-only="true"/>         </tx:attributes>     </tx:advice>

5)配置切入点表达式

 <!-- 5: 切入表达式: 配置运行的时候*包的*类切入通知 -->     <aop:config>         <aop:pointcut expression="execution(* cn.lsl.shop.service.impl.*.*(..))" id="pointcut"/>         <aop:advisor advice-ref="advice" pointcut-ref="pointcut"/>     </aop:config>

6)编写实体类和映射文件

package cn.lsl.shop.pojo;public class Category implements java.io.Serializable {    private Integer cid;    private String ctype;    private Boolean chot;    private Integer aid;        public Category() {        super();        // TODO Auto-generated constructor stub    }    public Category(String ctype, Boolean chot, Integer aid) {        super();this.ctype = ctype;        this.chot = chot;        this.aid = aid;    }    public Integer getCid() {        return cid;    }    public void setCid(Integer cid) {        this.cid = cid;    }    public String getCtype() {        return ctype;    }    public void setCtype(String ctype) {        this.ctype = ctype;    }    public Boolean getChot() {        return chot;    }    public void setChot(Boolean chot) {        this.chot = chot;    }    public Integer getAid() {        return aid;    }    public void setAid(Integer aid) {        this.aid = aid;    }}

映射文件

<?xml version="1.0" encoding="utf-8"?><!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN""http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd"><hibernate-mapping>    <class name="cn.lsl.shop.pojo.Category" table="category">        <id name="cid" type="java.lang.Integer">            <column name="cid" />            <generator class="native"></generator>        </id>        <property name="ctype" type="java.lang.String">            <column name="ctype" length="20" />        </property>        <property name="chot" type="java.lang.Boolean">            <column name="chot" />        </property>        <property name="aid" type="java.lang.Integer">            <column name="aid" />        </property>    </class></hibernate-mapping>

最后记得在hibernate.cfg.xml文件中添加

<mapping resource="cn/lsl/shop/pojo/Category.hbm.xml" />

7)编写Service层

package cn.lsl.shop.service.impl;import org.springframework.orm.hibernate3.HibernateTemplate;import cn.lsl.shop.pojo.Category;public class CategoryServiceImpl {    private HibernateTemplate hibernateTemplate = null;    public void setHibernateTemplate(HibernateTemplate hibernateTemplate) {        this.hibernateTemplate = hibernateTemplate;    }        public void save(Category category){        hibernateTemplate.save(category);    }}

并纳入Spring容器管理

<bean id="categoryServiceImpl" class="cn.lsl.shop.service.impl.CategoryServiceImpl">        <property name="hibernateTemplate" ref="hibernateTemplate" />    </bean>

8)测试

/*     * Spring管理Hibernate,采用AOP实现声明式事物     *      * 加载Spring与Hibernate整合的jar包     * */    @Test    public void springHibernate(){        ApplicationContext context=new ClassPathXmlApplicationContext("applicationContext-*.xml");        CategoryServiceImpl categoryServiceImpl=(CategoryServiceImpl)context.getBean("categoryServiceImpl");        Category category=new Category("test",false,1);        categoryServiceImpl.save(category);    }

若数据成功插入数据库,则Spring和Hibernate整和成功

4.添加struts2框架

1)编写Action类

package cn.lsl.shop.action;import cn.lsl.shop.service.impl.CategoryServiceImpl;public class TestAction {   public String test(){        System.out.println(categoryServiceImpl);        return "success";    }}

2)编写配置文件

<?xml version="1.0" encoding="UTF-8" ?><!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.1//EN" "http://struts.apache.org/dtds/struts-2.1.dtd"><struts>    <!--             注意:添加jar包的时候要刷新tomcat中项目        Struts 与Spring的整合作用: Spring来管理Action,从而实现Action与Service解耦     -->    <!-- struts-default 使用默认Struts拦截器 -->    <package name="shop" extends="struts-default">        <action name="testAction_*" class="cn.lsl.shop.action.TestAction" method="{1}">            <!-- struts2中 重定向可以忽略工程名 -->            <result name="success" type="redirect">/success.jsp</result>        </action>    </package></struts>  

3)配置web.xml文件

<!-- 配置Struts2的过滤器 -->    <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>*.action</url-pattern>    </filter-mapping>

5.整合Spring和Struts2

1)修改Action类,并纳入spring管理

public class TestAction {        private CategoryServiceImpl categoryServiceImpl=null;        public void setCategoryServiceImpl(CategoryServiceImpl categoryServiceImpl) {        this.categoryServiceImpl = categoryServiceImpl;    }     public String test(){        System.out.println(categoryServiceImpl);        return "success";    }}
<bean id="testAction" class="cn.lsl.shop.action.TestAction">        <property name="categoryServiceImpl" ref="categoryServiceImpl" />    </bean>

2)修改配置文件

<package name="shop" namespace="/" extends="struts-default">        <action name="testAction_*" class="testAction" method="{1}">            <!-- struts2中 重定向可以忽略工程名 -->            <result name="success" type="redirect">/success.jsp</result>        </action>    </package>

3)在web.xml文件中配置Spring监听器

<!-- 配置Spring的ContextLoaderListener监听器 -->    <context-param>        <param-name>contextConfigLocation</param-name>        <param-value>classpath*:applicationContext-*.xml</param-value>    </context-param>        <listener>        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>    </listener>

4)测试

http://localhost:8080/shop/testAction_test.action

 

S2SH整合