SSH
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SSH:顾名思义(spring,struts2,hirbernate)
Struts(表示层)+Spring(业务层)+Hibernate(持久层)
Struts是一个表示层框架,主要作用是界面展示,接收请求,分发请求。在MVC框架中,Struts属于VC层次,负责界面表现,负责MVC关系的分发。(View:沿用JSP,HTTP,Form,Tag,Resourse ;Controller:ActionServlet,struts-config.xml,Action) Hibernate: Hibernate是一个持久层框架,它只负责与关系数据库的操作。
Spring: Spring是一个业务层框架,是一个整合的框架,能够很好地黏合表示层与持久层。
前提条件:(引入三大框架的jar包)
第一步:搭建分层(以购买股票为案例)
1.搭建beans层,构建实体类,以及hirbernate的小配置文件(.hbm.xml)
2.搭建dao层以及dao的实现
3.构建service进行业务的处理以及dao的植入
第二步:构架配置文件applicationContext.xml(关联hirbernate以及struts的配置)
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<?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:aop= "http://www.springframework.org/schema/aop" xmlns:tx= "http://www.springframework.org/schema/tx" xsi:schemaLocation=" http: //www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http: //www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http: //www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd http: //www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd"> <!-- 配置dao --> <bean id= "stockdao" class = "cn.hq.dao.impl.StockDaoImpl" > <property name= "sessionFactory" ref= "sessionFactory" ></property> </bean> <!-- 配置service --> <bean id= "service" class = "cn.hq.service.impl.StockServiceImpl" > <property name= "stockDao" ref= "stockdao" ></property> </bean> <!-- 配置jdbc连接 --> <context:property-placeholder location= "classpath:jdb.properties" /> <!-- 配置数据源 --> <bean id= "dataSource" class = "com.mchange.v2.c3p0.ComboPooledDataSource" > <property name= "driverClass" value= "${jdbc.driver}" ></property> <property name= "jdbcUrl" value= "${jdbc.url}" ></property> <property name= "user" value= "${jdbc.user}" ></property> <property name= "password" value= "${jdbc.password}" ></property> </bean> |
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<!--hirbernate SessionFactory配置 --> <bean class = "org.springframework.orm.hibernate3.LocalSessionFactoryBean" id= "sessionFactory" > <!-- 数据源 --> <property ref= "dataSource" name= "dataSource" ></property> <!--各种hibernate属性 --> <property name= "hibernateProperties" > <props> <!-- 方言 --> <prop key= "hibernate.dialect" >org.hibernate.dialect.Oracle10gDialect</prop> <prop key= "hibernate.show_sql" > true </prop> <prop key= "hibernate.format_sql" > true </prop> <prop key= "hibernate.current_session_context_class" >org.springframework.orm.hibernate3.SpringSessionContext</prop> </props> </property> <!-- 引入小配置 --> <!-- <property name= "mappingResources" value= "cn/hq/beans/Stock.hbm.xml" ></property> --> <property name= "mappingDirectoryLocations" value= "classpath:cn/hq/beans" ></property> </bean> |
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<!-- struts2 配置action scope 范围--> <bean class = "cn.hq.action.AddStockAction" id= "addStock" scope= "prototype" > <property ref= "service" name= "service" ></property> </bean> <!-- 事务配置 --> <!-- 注册事务管理器 --> <bean class = "org.springframework.orm.hibernate3.HibernateTransactionManager" id= "transactionManager" > <property ref= "sessionFactory" name= "sessionFactory" ></property> </bean> <tx:advice id= "txAdive" transaction-manager= "transactionManager" > <tx:attributes> <!-- 指定方法的事务隔离机制以及传播行为 --> <tx:method name= "addStock" propagation= "REQUIRED" isolation= "DEFAULT" ></tx:method> </tx:attributes> </tx:advice> <aop:config> <aop:pointcut id= "stockpointcut" expression= "execution(* *..service.*.*(..))" ></aop:pointcut> <aop:advisor pointcut-ref= "stockpointcut" advice-ref= "txAdive" ></aop:advisor> </aop:config> |
构建jdb.properties,连接数据库。
测试类:
首先测试hirbernate整合
struts2整合:
前提: 必须在Web应用启动时,创建Spring的ApplicationContext实例
步骤: 采用ContextLoaderListener来创建ApplicationContext: contextConfigLocation /WEB-INF/spring-config/applicationContext.xml org.springframework.web.context.ContextLoaderListener
构建action类
struts.xml配置文件:
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<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN" "http://struts.apache.org/dtds/struts-2.3.dtd" > <struts> < package name= "default" extends = "struts-default" > <!-- 定义action节点 指定action 指定方法 --> <action name= "addaction" class = "cn.hq.action.AddStockAction" method= "add" > <result name= "success" >/index.jsp</result> </action> </ package > </struts> |
applicationContext.xml中配置:
web.xml的配置:
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<!--?xml version= "1.0" encoding= "UTF-8" ?--> <web-app xsi:schemalocation= "http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xmlns:xsi= "http://www.w3.org/2001/XMLSchema-instance" xmlns= "http://java.sun.com/xml/ns/javaee" version= "2.5" > <display-name></display-name> <!--指定配置文件的位置和名称 --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:applicationContext.xml</param-value> </context-param> <!-- 监听器:作用是在整个网站运行的时候,获取到ServletContext(application)初始化的时候,自动 注入Spring容器 --> <listener> <listener- class >org.springframework.web.context.ContextLoaderListener</listener- class > </listener> <filter> <filter-name>struts</filter-name> <filter- class >org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter- class > </filter> <filter-mapping> <filter-name>struts</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> </web-app> |
测试页面:
add.jsp
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