Activiti 10分钟教程

最新推荐文章于 2025-06-16 23:23:25 发布

DannyDaiChn

最新推荐文章于 2025-06-16 23:23:25 发布

阅读量1.3k

点赞数

CC 4.0 BY-SA版权

分类专栏： activiti 文章标签： avtiviti h2

本文链接：https://blog.youkuaiyun.com/qq352345425/article/details/47300377

activiti 专栏收录该内容

1 篇文章

订阅专栏

本文详细介绍如何搭建Activiti流程引擎的开发环境，并演示了从创建流程定义到运行流程实例的具体步骤，包括集成H2数据库及使用Eclipse插件。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

一、安装环境

Java JDK SE 1.7.4x
Apache Tomcat7
Activiti 5.13
Eclipse Indigo (activiti插件)
H2 database(建议用1.3.X，太高的在activiti连接的时候会报错)

HB database安装时，直接使用安装包根据安装向导完成。

Eclipse activiti插件安装: 【Help】->【Install New Software...】在弹出的框中点击【Add...】,加入下面的内容:

*Name:*Activiti BPMN 2.0 designer
*Location:*http://activiti.org/designer/update/

如图：

后面再选择全部，往后点【next】直到安装完成。

二、验证环境

1、 activiti-explorer启动

需要jdk是1.7的，所以tomcat也需要7，不然会把NoClassDefFoundException错误，操作：

a、把 activiti-explorer.war拷到webapps目录下，启动tomcat

b、登录 http://localhost:8080/activiti-explorer，用户名/密码 kermit/kermit

登录成功，说明服务正常。

2、H2独立服务

windows通过菜单找到H2 Console (Command Line)，启动H2 数据库。

登录http://localhost:8082，会出现如下登录界面

修改红色区域内容，如果不能登录，则用jdbc:h2:tcp://localhost/activiti，能够登录说明数据库正常。

三、Activiti Explorer 与H2数据库集成

1、关掉数据库服务和Activiti Explorer服务，首先启动数据库服务，

2、再修改Activiti Explorer的db配置文件，文件路径： \webapps\activitiexplorer\WEBINF\classes\db.properties file

把jdbc.url改成jdbc.url=jdbc:h2:tcp://localhost/~/activiti，如果连接数据库的为jdbc:h2:tcp://localhost/activiti，这里就改成一样的。

3、启动Activiti服务器，再登录Activiti，登录成功说明集成成功。到数据库界面可以看到新增加的数据库表。

四、自己创建实例运行

1、在Eclipse中安装插件后，可以新建activiti project，再创建一个*.bpmn20.xml文件，这里直接拷手册中的数据到此文件，如下：

<? xml version = "1.0" encoding = "UTF-8" ?>

< definitions id = "definitions"

   targetNamespace = "http://activiti.org/bpmn20"

   xmlns:activiti = "http://activiti.org/bpmn"

   xmlns = "http://www.omg.org/spec/BPMN/20100524/MODEL" >

         < process id = "financialReport" name = "Monthly financial report reminder process" >

          < startEvent id = "theStart" />

          < sequenceFlow id = 'flow1' sourceRef = 'theStart' targetRef = 'writeReportTask' />

          < userTask id = "writeReportTask" name = "Write monthly financial report" >

            < documentation >

             Write monthly financial report for publication to shareholders.

            </ documentation >

            < potentialOwner >

              < resourceAssignmentExpression >

                < formalExpression > accountancy </ formalExpression >

              </ resourceAssignmentExpression >

            </ potentialOwner >

          </ userTask >

          < sequenceFlow id = 'flow2' sourceRef = 'writeReportTask' targetRef = 'verifyReportTask' />

          < userTask id = "verifyReportTask" name = "Verify monthly financial report" >

            < documentation >

             Verify monthly financial report composed by the accountancy department.

             This financial report is going to be sent to all the company shareholders.

            </ documentation >

            < potentialOwner >

              < resourceAssignmentExpression >

                < formalExpression > management </ formalExpression >

              </ resourceAssignmentExpression >

            </ potentialOwner >

          </ userTask >

          < sequenceFlow id = 'flow3' sourceRef = 'verifyReportTask' targetRef = 'theEnd' />

          < endEvent id = "theEnd" />

         </ process >

</ definitions >

2、新建一个测试的java文件，文件内容可以如下：

public static void main(String[] args ) {

// Create Activiti process engine

ProcessEngine processEngine = ProcessEngineConfiguration

. createStandaloneProcessEngineConfiguration()

.buildProcessEngine();

// Get Activiti services

RepositoryService repositoryService = processEngine .getRepositoryService();

RuntimeService runtimeService = processEngine .getRuntimeService();

// Deploy the process definition

repositoryService .createDeployment()

.addClasspathResource( "myProcess.bpmn20.xml" )

.deploy();

// Start a process instance

String procId = runtimeService .startProcessInstanceByKey( "financialReport" ).getId();

// Get the first task

TaskService taskService = processEngine .getTaskService();

List<Task> tasks = taskService .createTaskQuery().taskCandidateGroup( "accountancy" ).list();

for (Task task : tasks ) {

System. out .println( "Following task is available for accountancy group: " + task .getName());

// claim it

taskService .claim( task .getId(), "fozzie" );

}

// Verify Fozzie can now retrieve the task

tasks = taskService .createTaskQuery().taskAssignee( "fozzie" ).list();

for (Task task : tasks ) {

System. out .println( "Task for fozzie: " + task .getName());

// Complete the task

taskService .complete( task .getId());

}

System. out .println( "Number of tasks for fozzie: "

+ taskService .createTaskQuery().taskAssignee( "fozzie" ).count());

// Retrieve and claim the second task

tasks = taskService .createTaskQuery().taskCandidateGroup( "management" ).list();

for (Task task : tasks ) {

System. out .println( "Following task is available for management group: " + task .getName());

taskService .claim( task .getId(), "kermit" );

}

// Completing the second task ends the process

for (Task task : tasks ) {

taskService .complete( task .getId());

}

// verify that the process is actually finished

HistoryService historyService = processEngine .getHistoryService();

HistoricProcessInstance historicProcessInstance =

historyService .createHistoricProcessInstanceQuery().processInstanceId( procId ).singleResult();

System. out .println( "Process instance end time: " + historicProcessInstance .getEndTime());

}

测试类后完成发布流程，启动流程和完成流程等一系列操作，这个是我们自己项目需要使用的API。

参考： http://www.codeproject.com/Tips/699392/Step-by-Step-your-First-journey-with-Activiti

http://activiti.org/userguide/index.html#_getting_started_10_minute_tutorial