手把手搭建SSH+Activiti（附加源码）

               

  

 1.前言

     本篇博客，来为大家分享一下SSH+Activiti框架的搭建。其实整个过程并不是很复杂，就是引用一些jar包和配置一些属性文件而已。没有什么神奇的东西，都是给封装好的，我们只不过来个整合就可以了。整体的目录结构如下所示

 2.环境准备

1）JDK1.6或者更高版本

2）数据库为MySql

3）Activiti为5.1.3版本的jar包

4）开发环境工具为Eclipse，需要安装流程设计器插件

有网的情况下，只需要搜索插件地址，然后全部安装即可，如下图所示

 

没网络的情况下，直接下载插件activiti—eclipse_plugin.zip，把压缩包中的内容放入elicpse根目录的dropins文件夹下即可

 3.jar包准备

Struts2相关jar包

基本jar包(11个)

从struts-2.3.7-all.zip资源包中获取apps目录下对应jar包apps\struts2-blank\WEB-INF\lib\*.jar

相关jar包(2+1个)

struts2整合Spring(需要使用)

struts2-spring-plugin-2.3.7.jar

struts2整合Ajax(通常需要使用)

struts2-json-plugin-2.3.7.jar

struts2使用注解开发(根据需求开启)

struts2-convention-plugin-2.3.7.jar

Spring3相关jar包

核心jar包(4个)

spring-beans-3.2.0.RELEASE.jar

spring-context-3.2.0.RELEASE.jar

spring-core-3.2.0.RELEASE.jar

spring-expression-3.2.0.RELEASE.jar

日志包(2个)

com.springsource.org.apache.commons.logging-1.1.1.jar

com.springsource.org.apache.log4j-1.2.15.jar

AOP包(4个)

spring-aop-3.2.0.RELEASE.jar

spring-aspects-3.2.0.RELEASE.jar

com.springsource.org.aopalliance-1.0.0.jar

com.springsource.org.aspectj.weaver-1.6.8.RELEASE.jar

JDBC包(2个)

spring-jdbc-3.2.0.RELEASE.jar

spring-tx-3.2.0.RELEASE.jar

事务管理(1个)

整合ORM框架(1个)

spring-orm-3.2.0.RELEASE.jar

WEB集成(1个)

spring-web-3.2.0.RELEASE.jar

整合JUnit(1个)

spring-test-3.2.0.RELEASE.jar

Hibernate相关jar包

核心jar包(1个)

hibernate3.jar

必须的jar包(6个)

lib\required\目录下的所有包

•antlr-2.7.6.jar

•commons-collections-3.1.jar

•dom4j-1.6.1.jar

•javassist-3.12.0.GA.jar

•jta-1.1.jar

•slf4j-api-1.6.1.jar

jpa的jar包(1个)

•hibernate-jpa-2.0-api-1.0.1.Final.jar

lslf4j整合log4j的jar包(1个) (log4j在spring中已导入)

•slf4j-log4j12-1.7.2.jar

lc3p0连接池jar包(1个)

•c3p0-0.9.1.jar

数据库驱动jar包(N个)(按需求导入)

Activiti相关jar包

1.activiti-5.13\libs下所有包

2.activiti-5.13\wars\activiti-rest\WEB-INF\lib下mybatis-3.2.2

3.activiti-5.13\wars\activiti-rest\WEB-INF\lib下joda-time-2.1.jar

 4.配置文件配置

Struts2相关配置

1.web.xml加入Struts2核心过滤器

<span style="font-family:Comic Sans MS;font-size:18px;"><!-- 配置spring启动的监听器，用来初始化Spring中的配置文件 -->  <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>  <!-- 配置struts2启动的过滤器 -->  <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>/*</url-pattern>  </filter-mapping></span>

 2.Struts.xml配置

在此配置中需要配置控制器以及拦截器的相关信息

<span style="font-family:Comic Sans MS;font-size:18px;"><?xml version="1.0" encoding="UTF-8" ?><!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN" "http://struts.apache.org/dtds/struts-2.3.dtd"><struts>    <!-- 配置模式为开发模式，自动加载struts.xml和显示错误提示信息 -->    <constant name="struts.devMode" value="true" />    <!-- 设置页面主题为简单主题，去掉struts2开发提供的样式 -->    <constant name="struts.ui.theme" value="simple" />    <package name="default" namespace="/" extends="struts-default">     <!-- 拦截器配置 -->     <interceptors>      <!-- 定义了一个用于拦截器登录的拦截器 -->      <interceptor name="loginInterceptor" class="cn.itcast.ssh.utils.LoginInteceptor">             </interceptor>      <!-- 定义一个拦截器栈 -->      <interceptor-stack name="systemStack">    <interceptor-ref name="defaultStack" />    <interceptor-ref name="loginInterceptor" />   </interceptor-stack>     </interceptors>        <!-- 定义系统默认拦截器 全局 -->  <default-interceptor-ref name="systemStack" />      <!-- 全局结果视图 -->     <global-results>      <result name="login" type="redirect">       login.jsp      </result>     </global-results>          <action name="loginAction_*" class="loginAction" method="{1}">         <result name="success">WEB-INF/views/main.jsp</result>         <result name="top">WEB-INF/views/top.jsp</result>         <result name="left">WEB-INF/views/left.jsp</result>         <result name="welcome">WEB-INF/views/welcome.jsp</result>        </action>                <action name="leaveBillAction_*" class="leaveBillAction" method="{1}">            <result name="home">WEB-INF/views/leaveBill/list.jsp</result>            <result name="input">WEB-INF/views/leaveBill/input.jsp</result>            <result name="save" type="redirectAction">          <param name="actionName">leaveBillAction_home.action</param>         </result>        </action>          <action name="workflowAction_*" class="workflowAction" method="{1}">         <result name="list" type="redirectAction">          <param name="actionName">workflowAction_deployHome.action</param>         </result>         <result name="deployHome">WEB-INF/views/workflow/workflow.jsp</result>         <result name="task">WEB-INF/views/workflow/task.jsp</result>         <result name="image">WEB-INF/views/workflow/image.jsp</result>         <result name="listTask" type="redirectAction">       <param name="actionName">workflowAction_listTask.action</param>            </result>         <result name="viewTaskForm" type="redirectAction">          <param name="actionName">${#formKey}</param>         </result>         <result name="taskForm">WEB-INF/views/workflow/taskForm.jsp</result>            <result name="viewHisComment">WEB-INF/views/workflow/taskFormHis.jsp</result>        </action>    </package></struts></span>

log4j.properties配置

用来配置控制台打印的一些warn、error等类型信息，也可以输出到外部文件中。

<span style="font-family:Comic Sans MS;font-size:18px;">log4j.rootLogger=WARN, CA# ConsoleAppenderlog4j.appender.CA=org.apache.log4j.ConsoleAppenderlog4j.appender.CA.layout=org.apache.log4j.PatternLayoutlog4j.appender.CA.layout.ConversionPattern= %d{hh:mm:ss,SSS} [%t] %-5p %c %x - %m%n</span>

db.properties中放置的是连接数据库的一些信息

<span style="font-family:Comic Sans MS;font-size:18px;">jdbc.url=jdbc:mysql://192.168.24.82:3306/test?useUnicode=true&characterEncoding=UTF-8&autoReconnect=true&failOverReadOnly=falsejdbc.driverClassName=com.mysql.jdbc.Driverjdbc.username=rootjdbc.password=123456</span>

activiti-context.xml中放置的是流程实例对象相关信息

<span style="font-family:Comic Sans MS;font-size:18px;"><?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"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.xsdhttp://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsdhttp://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd"> <!-- spring负责创建流程引擎的配置文件 --> <bean id="processEngineConfiguration" class="org.activiti.spring.SpringProcessEngineConfiguration">  <!-- 数据源 -->  <property name="dataSource" ref="dataSource" />  <!-- 配置事务管理器，统一事务 -->  <property name="transactionManager" ref="transManager" />  <!-- 设置建表策略，如果没有表，自动创建表 -->  <property name="databaseSchemaUpdate" value="true" /> </bean> <!-- 创建流程引擎对象 --> <bean id="processEngine" class="org.activiti.spring.ProcessEngineFactoryBean">  <property name="processEngineConfiguration" ref="processEngineConfiguration" /> </bean>  <!--  相当于下面的代码 RepositoryServicie repositoryService = processEngine.getRepositoryService(); RuntimeServicie repositoryService = processEngine.getRuntimeServicie(); TaskServicie taskServicie = processEngine.getTaskServicie(); HistoryServicie historyServicie = processEngine.getHistoryServicie();  --> <!-- 由流程引擎对象，提供的方法，创建项目中使用的Activiti工作流的Service --> <bean id="repositoryService" factory-bean="processEngine" factory-method="getRepositoryService" /> <bean id="runtimeService" factory-bean="processEngine" factory-method="getRuntimeService" /> <bean id="taskService" factory-bean="processEngine" factory-method="getTaskService" /> <bean id="historyService" factory-bean="processEngine" factory-method="getHistoryService" /> <bean id="formService" factory-bean="processEngine" factory-method="getFormService" /> </beans></span>

而Hibernate与Spring的整合，以及Activiti与Spring的整合，都放置在applicationContext.xml

<span style="font-family:Comic Sans MS;font-size:18px;"><?xml version="1.0" encoding="UTF-8"?><beans  xmlns="http://www.springframework.org/schema/beans"        xmlns:context="http://www.springframework.org/schema/context"        xmlns:aop="http://www.springframework.org/schema/aop"        xmlns:tx="http://www.springframework.org/schema/tx"  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-3.0.xsd                      http://www.springframework.org/schema/context                       http://www.springframework.org/schema/context/spring-context-3.0.xsd                      http://www.springframework.org/schema/tx                       http://www.springframework.org/schema/tx/spring-tx-3.0.xsd                      http://www.springframework.org/schema/aop                       http://www.springframework.org/schema/aop/spring-aop-3.0.xsd">  <!-- 配置数据源 --> <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">  <property name="url" value="${jdbc.url}" />  <property name="driverClassName" value="${jdbc.driverClassName}" />  <property name="username" value="${jdbc.username}" />  <property name="password" value="${jdbc.password}" /> </bean> <!-- 配置外部数据库连接信息--> <context:property-placeholder location="classpath:db.properties"/> <!-- 创建SessionFactory，这是spring整合hibernate的核心 --> <bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">  <!-- 1.配置datasource -->  <property name="dataSource" ref="dataSource"></property>  <!-- 2.配置Hibernate属性 -->  <property name="hibernateProperties">   <value>    hibernate.hbm2ddl.auto=update    hibernate.show_sql=true    hibernate.dialect=org.hibernate.dialect.MySQL5Dialect   </value>  </property>  <!-- 3.配置映射文件 -->  <property name="mappingLocations">   <list>    <value>classpath:cn/itcast/ssh/domain/*.hbm.xml</value>   </list>  </property> </bean>  <!--  配置事务  --> <!-- 1.配置事务管理器 --> <bean id="transManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">  <property name="sessionFactory" ref="sessionFactory"></property> </bean>  <!-- 2.配置事务通知 --> <tx:advice id="txAdvice" transaction-manager="transManager">  <tx:attributes>   <tx:method name="save*" isolation="DEFAULT" propagation="REQUIRED" read-only="false"/>   <tx:method name="update*" isolation="DEFAULT" propagation="REQUIRED" read-only="false"/>   <tx:method name="delete*" isolation="DEFAULT" propagation="REQUIRED" read-only="false"/>   <tx:method name="*" read-only="true" />  </tx:attributes> </tx:advice>  <!-- 3.配置切面 --> <aop:config>  <aop:pointcut expression="execution(* cn.itcast.ssh.service..*.*(..))" id="aopPointcut"/>  <aop:advisor advice-ref="txAdvice" pointcut-ref="aopPointcut" /> </aop:config>  <!--  配置基础的Dao，在其他的DAO中只需要继承即可 --> <bean id="baseDao" abstract="true">  <property name="sessionFactory" ref="sessionFactory"></property> </bean> <!-- 导入相关配置 --> <import resource="classpath:applicationContext-dao.xml"/> <import resource="classpath:applicationContext-service.xml"/> <import resource="classpath:applicationContext-action.xml"/> <import resource="classpath:activiti-context.xml"/>    </beans>                    </span>

其余的applicationContext-*.xml中的配置文件配置的就是相关的依赖注入的信息

 5.Dao层

而在Dao层，引入了HibernateDaoSupport模板，具体如下

<span style="font-family:Comic Sans MS;font-size:18px;">import java.util.List;import org.springframework.orm.hibernate3.support.HibernateDaoSupport;import cn.itcast.ssh.dao.IEmployeeDao;import cn.itcast.ssh.domain.Employee;public class EmployeeDaoImpl extends HibernateDaoSupport implements IEmployeeDao {  /**使用用户名称查询用户的集合*/ @Override public List<Employee> findEmployeeByName(String name) {  List<Employee> list = this.getHibernateTemplate().find("from Employee where name=?",new Object[]{name});  return list; }}</span>

其实可以再向上抽象一层，主要是看自己如何分层了。本篇就是为了展示SSH框架，顾没有划分那么细致。

 6.Service层

相关的业务逻辑，需要在Service层中，而Activiti中的Dao数据引擎对象，也在Service中进行注入

<span style="font-family:Comic Sans MS;font-size:18px;">public class LeaveBillServiceImpl implements ILeaveBillService { private ILeaveBillDao leaveBillDao; public void setLeaveBillDao(ILeaveBillDao leaveBillDao) {  this.leaveBillDao = leaveBillDao; } /**查询所有的请假单列表*/ @Override public List<LeaveBill> findLeaveBillList() {  List<LeaveBill> list = leaveBillDao.findLeaveBillList();  return list; } /**保存/更新请假单*/ @Override public void saveLeaveBill(LeaveBill leaveBill) {  //获取请假申请单的ID，判断执行的是新增的操作还是修改的操作  Long id = leaveBill.getId();  //执行新增  if(id==null){   //获取页面的表单值，从Session中获取当前用户的对象，建立多对一的关联关系，直接执行保存   Employee employee = SessionContext.get();   //组织PO对象   //leaveBill.setState(0);//设置状态，0表示初始状态   leaveBill.setUser(employee);//建立多对一的关联关系   leaveBillDao.save(leaveBill);  }  //执行编辑  else{   leaveBillDao.update(leaveBill);  }   } /**使用主键ID，查询请假申请单的对象*/ @Override public LeaveBill findLeaveBillByID(Long id) {  LeaveBill bill = leaveBillDao.findLeaveBillByID(id);  return bill; }  /**使用ID，删除请假单*/ @Override public void deleteLeaveBillByID(Long id) {  leaveBillDao.deleteLeaveBillByID(id); }}</span>

 7.Controller层

Controller是Struts2中的Action，在此继承了ActionSupport和实现了ModelDriven接口

<span style="font-family:Comic Sans MS;font-size:18px;">@SuppressWarnings("serial")public class LeaveBillAction extends ActionSupport implements ModelDriven<LeaveBill> { private LeaveBill leaveBill = new LeaveBill();  @Override public LeaveBill getModel() {  return leaveBill; }  private ILeaveBillService leaveBillService; public void setLeaveBillService(ILeaveBillService leaveBillService) {  this.leaveBillService = leaveBillService; } /**  * 请假管理首页显示  * @return  */ public String home(){  //1：查询请假单申请表，返回List<LeaveBill>  List<LeaveBill> leaveList = leaveBillService.findLeaveBillList();  ValueContext.putValueContext("leaveList", leaveList);  return "home"; }  /**  * 添加请假申请  * @return  */ public String input(){  //获取请假ID  Long id = leaveBill.getId();  //跳转到编辑页面  if(id!=null){   //1：获取请假单ID，使用请假单ID作为条件，查询请假单LeaveBill对象   LeaveBill bill = leaveBillService.findLeaveBillByID(id);   //2：将LeaveBill对象放置到栈顶   ValueContext.putValueStack(bill);  }  return "input"; }  /**  * 保存/更新，请假申请  *   * */ public String save() {  //执行保存  leaveBillService.saveLeaveBill(leaveBill);  return "save"; }  /**  * 删除，请假申请  *   * */ public String delete(){  //获取请假申请单ID  Long id = leaveBill.getId();  leaveBillService.deleteLeaveBillByID(id);  return "save"; } }</span>

 8.小结

以上就是整个SSH+Activiti的框架搭建，其实很简单，就是做一些配置而已。

源码下载：SSH+Activiti

           

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