activiti框架API使用技巧

1. 流程引擎的初始化

ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();

2. 部署流程定义

RepositoryService repositoryService = processEngine.getRepositoryService();
Deployment deployment = repositoryService.createDeployment()
  .addClasspathResource("processes/my-process.bpmn20.xml")
  .deploy();

3. 启动流程实例

RuntimeService runtimeService = processEngine.getRuntimeService();
ProcessInstance processInstance = runtimeService.startProcessInstanceByKey("my-process");

4. 查询任务

TaskService taskService = processEngine.getTaskService();
List<Task> tasks = taskService.createTaskQuery().taskAssignee("kermit").list();

5. 完成任务

taskService.complete(task.getId());

6. 查询流程实例

ProcessInstance processInstance = runtimeService.createProcessInstanceQuery().processInstanceId("my-process-id").singleResult();

7. 查询历史流程实例

HistoryService historyService = processEngine.getHistoryService();
List<HistoricProcessInstance> historicProcessInstances = historyService.createHistoricProcessInstanceQuery().finished().list();

8. 获取流程定义信息

RepositoryService repositoryService = processEngine.getRepositoryService();
ProcessDefinition processDefinition = repositoryService.createProcessDefinitionQuery().processDefinitionId(processInstance.getProcessDefinitionId()).singleResult();

这些是使用Activiti框架API的基本技巧，可以帮助您在实际开发中更好地使用Activiti框架。