Activiti学习-2

5.12乱码问题解决：

<!-- Activiti 配置  begin-->
    <bean id="processEngineConfiguration" class="org.activiti.spring.SpringProcessEngineConfiguration">
        <property name="dataSource" ref="dataSource" />
        <property name="transactionManager" ref="transactionManager" />
        <property name="databaseSchemaUpdate" value="true" />
        <property name="jobExecutorActivate" value="false" />
        <property name="history" value="full" />
        <property name="processDefinitionCacheLimit" value="10" />
        <!-- 节点乱码问题配置 -->
        <property name="activityFontName" value="微软雅黑"/>
    </bean>

流程图当前节点加亮

/**
	 * 
	 * @author test
	 * @createDate 2014-6-8下午05:46:34
	 * @params 
	 * @return byte[]
	 * @useFor 获得流程图加亮
	 */
	public byte[] getActivitiPngBytes(ProcessInstance processInstance)
			throws IOException {
		byte[] result = null;
		try {
			BpmnModel bpmnModel = repositoryService
					.getBpmnModel(processInstance.getProcessDefinitionId());
			List<String> activeActivityIds = runtimeService
					.getActiveActivityIds(processInstance.getId());
			ProcessEngineImpl defaultProcessEngine = (ProcessEngineImpl) ProcessEngines
					.getDefaultProcessEngine();
			Context.setProcessEngineConfiguration(defaultProcessEngine
					.getProcessEngineConfiguration());
			/** 得到图片输出流 **/
			InputStream imageStream = ProcessDiagramGenerator.generateDiagram(
					bpmnModel, "png", activeActivityIds);
			result = new byte[imageStream.available()];
			imageStream.read(result);
		} catch (IOException e) {
			e.printStackTrace();
		}
		return result;
	}

签收了的：

taskService.delegateTask(taskId, userId);

有一个节点的Id怎么得到这个节点的Activity：

processDefinitionEntity.findExctivity(activitiyId)  ;

获得当前任务的所有节点：

		ProcessDefinitionEntity processDefinition1 = (ProcessDefinitionEntity) ((RepositoryServiceImpl) repositoryService)
				.getDeployedProcessDefinition(processInstance.getProcessDefinitionId());
		List<ActivityImpl> activitiList = processDefinition1.getActivities();//获得当前任务的所有节点

获取历史节点信息：

     List<HistoricActivityInstance>  hiaciList = getHistoryService().createHistoricActivityInstanceQuery().processInstanceId(processInstanceId).finished().orderByHistoricActivityInstanceEndTime().asc().list();

 HistoricProcessInstance historicProcessInstance =	historyService.createHistoricProcessInstanceQuery().processInstanceId(processInstanceId).singleResult();
       lastActivitiHandleUserName=historicProcessInstance.getStartUserId();

获取activiti变量：

List<HistoricVariableInstance> list = historyService.createHistoricVariableInstanceQuery().processInstanceId("6310").list();
		for (HistoricVariableInstance variableInstance : list) {
		  System.out.println("variable: " + variableInstance.getVariableName() + " = " + variableInstance.getValue());
		}

获取当前任务，通过processinstanceId:

		Task task11=	taskService.createTaskQuery().processInstanceId(processinstanceId).singleResult();

删除流程：

 //流程没有结束
 runtimeService.deleteProcessInstance(processInstanceId,""); 
 historyService.deleteHistoricProcessInstance(procesInstanceId);(顺序不能换) 
 //流程已经结束
 historyService.deleteHistoricProcessInstance(procesInstanceId);