jbpm开发(2)(转贴) -优快云博客

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 >

< bean id = "transactionManager"

class = "org.springframework.orm.hibernate3.HibernateTransactionManager" >

< property name = "sessionFactory" >

< ref local = "sessionFactory" />

</ property >

</ bean >

< 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 >

< prop key = "*" > PROPAGATION_REQUIRED,readOnly </ prop >

</ props >

</ property >

</ bean >

< bean id = "websaleWorkflow1"

class = "org.springmodules.workflow.jbpm31.definition.ProcessDefinitionFactoryBean" >

< property name = "definitionLocation"

value = "classpath:/com/jpdl/simple/processdefinition.xml" />

</ bean >

< 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