jbpm开发(2)(转贴)
1 概述
本文主要介绍如何将JBPM+Struts+Spring+Hibernate整合在一块。并通过一个简单实例来说明。此实例为一个申请审批的简单流程，并将申请人和审批人记录到数据库中，流程为start----申请----审批----end，中间无退回，无分支，只是看一下jbpm的流程设计，本文将jbpm和struts/spring/hibernate结合在一块做为一个完整的项目来叙述。
通过processdefinition.xml的可视图，可了解一下流程图：
2 环境
tomcat6.0+jdk1.5+eclips3.2
jbpm3.1.4
spring2.0
hibernate3
数据库：postgreSql8.1
jbpm提供了在eclipse下的一个可视化插件，通过它我们可以方便的定义工作流,介绍一下eclipse如何添加该插件？
打开jbpm-starters-kit-3.1.4\jbpm-designer\jbpm-gpd-feature目录，我们可以看到下面有一个eclipse文件夹，这里我们通过link的方式为eclipse添加该插件。
在{eclipse_home}/link文件夹下新建jbpm-designer.link文件，用记事本打开该文件加入如下一行：
path=D:\\jbpm-starters-kit-3.1.4\\jbpm-designer\\jbpm-gpd-feature
后面的路径即为该插件的存放路径，根据个人情况修改。注意，这里的分隔符使用双斜杠\\或者用单斜杠/。
3 项目总体结构
src部分
WebRoot部分：
4 要引入的jar包
很多jar包是从jbpm-starters-kit-3.1.4\jbpm-starters-kit-3.1.4\jbpm\build
和jbpm-starters-kit-3.1.4\jbpm-starters-kit-3.1.4\jbpm\lib中得到的
其中spring-modules-jbpm31.jar、postgresql-8.1-405.jdbc2.jar要下载
以下是myeclips需要引入的包
5 web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="2.4" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<context-param>
<param-name>webAppRootKey</param-name>
<param-value>/jbpm/</param-value>
</context-param>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/classes/applicationContext.xml</param-value>
</context-param>
<context-param>
<param-name>log4jConfigLocation</param-name>
<param-value>/WEB-INF/classes/log4j.properties</param-value>
</context-param>
<context-param>
<param-name>log4jRefreshInterval</param-name>
<param-value>60000</param-value>
</context-param>
<filter>
<filter-name>Set Character Encoding</filter-name>
<filter-class>com.binghe.pub.SetCharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>GBK</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>Set Character Encoding</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<listener>
<listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>
</listener>
<servlet>
<servlet-name>action</servlet-name>
<servlet-class>org.apache.struts.action.ActionServlet</servlet-class>
<init-param>
<param-name>config</param-name>
<param-value>/WEB-INF/struts-config.xml</param-value>
</init-param>
<init-param>
<param-name>debug</param-name>
<param-value>3</param-value>
</init-param>
<init-param>
<param-name>detail</param-name>
<param-value>3</param-value>
</init-param>
<load-on-startup>0</load-on-startup>
</servlet>
<servlet>
<servlet-name>imageServlet</servlet-name>
<servlet-class>com.binghe.pub.ImageServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>action</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>imageServlet</servlet-name>
<url-pattern>/servlet/imageServlet</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>/apply.jsp</welcome-file>
</welcome-file-list>
</web-app>
6 applicationContext.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">
<beans>
<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName">
<value>org.postgresql.Driver</value>
</property>
<property name="url">
<value>jdbc:postgresql://localhost:5432/jbpmtest</value>
</property>
<property name="username">
<value>admin</value>
</property>
<property name="password">
<value>admin</value>
</property>
</bean>
<bean id="sessionFactory"
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="dataSource">
<ref bean="dataSource" />
</property>
<property name="mappingLocations">
<value>classpath*:/org/jbpm/**/*.hbm.xml</value>
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">
org.hibernate.dialect.PostgreSQLDialect
</prop>
<prop key="jdbc.fetch_size">50</prop>
<prop key="jdbc.batch_size">30</prop>
<prop key="hibernate.show_sql">true</prop>
<prop key="hibernate.use_outer_join">true</prop>
<prop key="hibernate.cglib.use_reflection_optimizer">
true
</prop>
</props>
</property>
</bean>
<!-- Transaction Manager -->
<bean id="transactionManager"
class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory">
<ref local="sessionFactory" />
</property>
</bean>
<!-- Transaction Interceptor -->
<bean id="transactionInterceptor"
class="org.springframework.transaction.interceptor.TransactionInterceptor"
dependency-check="none">
<property name="transactionManager">
<ref bean="transactionManager" />
</property>
<property name="transactionAttributes">
<props>
<prop key="save*">PROPAGATION_REQUIRED</prop>
<prop key="update*">PROPAGATION_REQUIRED</prop>
<prop key="attachDirty*">PROPAGATION_REQUIRED</prop>
<prop key="delete*">PROPAGATION_REQUIRED</prop>
<!-- default, readOnly -->
<prop key="*">PROPAGATION_REQUIRED,readOnly</prop>
</props>
</property>
</bean>
<!-- reading jBPM process definitions -->
<bean id="websaleWorkflow1"
class="org.springmodules.workflow.jbpm31.definition.ProcessDefinitionFactoryBean">
<property name="definitionLocation"
value="classpath:/com/jpdl/simple/processdefinition.xml" />
</bean>
<!-- jBPM configuration-->
<bean id="jbpmConfiguration"
class="org.springmodules.workflow.jbpm31.LocalJbpmConfigurationFactoryBean">
<property name="sessionFactory" ref="sessionFactory" />
<property name="configuration" value="classpath:/jbpm.cfg.xml" />
<property name="processDefinitions">
<list