activiti框架

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本文深入探讨了Activiti流程引擎的使用方法，包括流程变量的传递、流程实例的开启、任务的查询与办理，以及与Spring框架的整合配置。通过具体代码示例，读者可以详细了解如何在实际项目中应用Activiti。

流程变量：流程变量所起到的作用是传递参数

设置流程的四种方式：①启动设置 ②任务完成设置 ③ runtimeService.setvars...() ④taskservice.setvars...()

获取流程变量的两种方式：①runtimeService.getvars..,(); ②taskservice.getvars...()

获取流程引擎：

public class ActivitiTest {
//方式一:ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();
   //方式二:
public void test1() {
ProcessEngineConfiguration config = ProcessEngineConfiguration
.createProcessEngineConfigurationFromResource(
"activiti-context.xml", "processEngineConfiguration");
ProcessEngine processEngine = config.buildProcessEngine();
}
}

部署流程开启流程实例，办理任务

/**
* 部署流程
*/
public void test2() {
RepositoryService repositoryService = processEngine
.getRepositoryService();
DeploymentBuilder deploymentBuilder = repositoryService
.createDeployment();
deploymentBuilder.addClasspathResource("test.bpmn");
deploymentBuilder.addClasspathResource("test.png");
Deployment deployment = deploymentBuilder.deploy();
}
/**
* 开启流程实例
*/
public void test3() {
ProcessInstance processInstance = processEngine.getRuntimeService()
.startProcessInstanceById("test:1:104");
String instanceId = processInstance.getProcessInstanceId();
System.out.println(instanceId);
}
/**
* 查询和办理任务
*/
public void test4() {
//查询任务
TaskQuery taskQuery = processEngine.getTaskService().createTaskQuery();
//添加查询条件
taskQuery.taskAssignee("user");
Task task = taskQuery.singleResult();
//办理任务
processEngine.getTaskService().complete(task.getId());
}

activiti与Spring的整合

<!-- 整合activity工作流框架 -->
<bean id="processEngineConfiguration" class="org.activiti.spring.SpringProcessEngineConfiguration">
<property name="dataSource" ref="dataSource"/>
<property name="transactionManager" ref="txManager"/>
<property name="databaseSchemaUpdate" value="true"/>
</bean>
<bean id="processEngine" class="org.activiti.spring.ProcessEngineFactoryBean">
<property name="processEngineConfiguration" ref="processEngineConfiguration" />
</bean>
<bean id="repService" factory-method="getRepositoryService" factory-bean="processEngine"/>