S2SH项目搭建流程
S2SH项目搭建流程 08年年底开始，公司新项目开始采用struts2了。往后大部分项目采用Strust2，Hibernate，Spring架构。项目中忙里偷闲，整理点东西供分享(如有不完善之处将尽快修补)：
1) 准备好如下jar包: Oracle数据库的jar: Ojdbc14.jar struts2的jar: commons-pool.jar freemarker-2.3.8.jar ognl-2.6.11.jar struts2-core-2.0.11.jar xwork-2.0.4.jar struts2整合spring的jar: struts2-spring-plugin-2.0.9.jar Hibernate整合需要的jar: commons-logging-1.0.4.jar
2) Jndi连接池配置(以Tomcat为例)
<resource name="jdbc/test" auth="Container" type="javax.sql.DataSource" maxactive="100" maxidle="30" maxwait="10000" username="EHT" password="eht" driverclassname="oracle.jdbc.driver.OracleDriver" url="jdbc:oracle:thin:@localhost:1521:Orcl">
3) 创建工程,加入准备好的jar包, 通过IDE自动导入Spring,Hibernate框架, 删除asm-2.2.3.jar这个冲突的Jar 创建model,dao,service,action,inteceptor包, 建立相应的类: model类,dao类(继承HibernateDaoSupport),service类,Action类(继承ActionSupport), interceptor类(依据拦截方式实现不同接口,常用的是实现MethodInteceptor环绕拦截接口);
4) 修改web.xml,加入Spring的装载器与Struts2.0的过滤器,编码过滤器:
<!---->
<listener> <listener-class> org.springframework.web.context.ContextLoaderListener </listener-class> </listener>
<!----><context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:/applicationContext.xml</param-value> </context-param>
<!----><filter> <filter-name>struts2</filter-name> <filter-class> org.apache.struts2.dispatcher.FilterDispatcher </filter-class> </filter> <filter-mapping> <filter-name>struts2</filter-name> <url-pattern>/*</url-pattern> </filter-mapping>
<!----><filter> <filter-name>encodingFilter</filter-name> <filter-class> org.springframework.web.filter.CharacterEncodingFilter </filter-class> <init-param> <param-name>encoding</param-name> <param-value>gbk</param-value> </init-param> </filter> <filter-mapping> <filter-name>encodingFilter</filter-name> <url-pattern>*.action</url-pattern> </filter-mapping>
5) 创建struts.xml文档;
6) 在根目录下创建daoContext.xml,strutsContext.xml,serviceContext.xml,aopContext.xml;
7) 为上步创建的4个文档引入如下申明:
<!---->
<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-2.0.xsd"></beans>
8) 创建JSP界面,建立表单,定义好表单的action属性
(与下一步的<action>配置的name属性匹配); 若要使用struts2标签,可引入
<%@ taglib prefix="s" uri="/struts-tags" %>
9) 配置struts.xml:
<struts>
<!----><constant name="struts.i18n.encoding" value="GBK">
<!----><constant name="struts.objectFactory" value="spring"> <package name="default" extends="struts-default"> <action name="user" class="loginAction"> <result name="input">/login.jsp</result> <result name="error">/login.jsp</result> <result name="success">/index.jsp</result> <interceptor-ref name="params"></interceptor-ref> </action> </package> </struts> 1
0) 配置strutsContext.xml:
<!---->
<bean id="loginAction" class="com.company.action.LoginAction" scope="prototype"> <property name="userService" ref="userService"> </bean>
11) 配置serviceContext.xml:
<!---->
<bean id="userService" class="com.company.service.UserService"> <property name="userDao" ref="userDao"> </bean>
12) 配置daoContext.xml:
<!---->
<bean id="dataSource" class="org.springframework.jndi.JndiObjectFactoryBean"> <property name="jndiName" value="java:comp/env/jdbc/test"> <property name="lookupOnStartup" value="false"> <property name="cache" value="true"> <property name="proxyInterface" value="javax.sql.DataSource"> </bean>
<!----><bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean"> <property name="dataSource"> <ref bean="dataSource"> </property> <property name="hibernateProperties"> <props> <prop key="hibernate.dialect"> org.hibernate.dialect.Oracle9Dialect </prop> <prop key="hibernate.show_sql">true</prop> </props> </property> <property name="mappingDirectoryLocations"> <list> <value>classpath:/com/company /model/User.hbm.xml</value> </list> </property> </bean> <bean id="userDao" class="com.company.dao.UserDao"> <property name="sessionFactory" ref="sessionFactory"> </bean>
13) 修改自动生成的applicationContext.xml:
<!---->
<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-2.0.xsd"> <import resource="aopContext.xml"> <import resource="daoContext.xml"> <import resource="serviceContext.xml"> <import resource="strutsContext.xml"> </beans>
14) src下加入Log4J资源文件:
log4j.properties
15) 可以开始写业务逻辑与数据库操作方法了. Action类中获得各范围对象的方法：
1.获得Session对象:
Map sessionMap = ActionContext.getContext().getSession(); //将信息放入session中 sessionMap.put("user", "valid");
2.获得request对象
HttpServletRequest request = ServletActionContext.getRequest(); request.setAttribute("username", "helloworld");
3.获得response对象
HttpServletResponse response = ServletActionContext.getResponse(); Cookie cookie = new Cookie("username",this.getUsername()); //如果设置为负数,则为会话Cookie; cookie.setMaxAge(1000); response.addCookie(cookie); 字段驱动: 本例采用字段驱动, 它一般用在页面表单比较简单的情况使用.界面表单文本框的name属性必须采用user.username形式 模型驱动: 界面表单文本框比较复杂, 用普通java对象充当模型部分 struts.xml的action配置加上<interceptor-ref name="model-driven"> 并且让Action类实现ModelDriven接口,重写getModel()方法 public Object getModel(){ return user; } 将JSP界面表单文本框的name属性的user.去掉 附加过滤器:
<!----><filter> <filter-name>hibernateFilter</filter-name> <filter-class> org.springframework.orm.hibernate3.support.OpenSessionInViewFilter </filter-class>
<!----><init-param> <param-name>singleSession</param-name> <param-value>true</param-value> </init-param> </filter> <filter-mapping> <filter-name>hibernateFilter</filter-name> <url-pattern>*.action</url-pattern> </filter-mapping>