1、绑定启动流程的当前用户
在启动流程时,先调用 下面的api 来绑定流程启动人
- identityService.setAuthenticatedUserId(user);
2、获取流程实例的启动人
- public String getStartUserId(String taskId) {
- Task task =
- taskService.createTaskQuery()
- .taskId(taskId)
- .singleResult();
- HistoricProcessInstance historicProcessInstance =
- historyService.createHistoricProcessInstanceQuery()
- .processInstanceId(task.getProcessInstanceId())
- .singleResult();
- return historicProcessInstance.getStartUserId();
- }
小结: activiti:initiator属性作用:可以把启动流程实例的操作人以变量名(比如"applyUserId")保存到数据库中,需要配合
identityService.setAuthenticatedUserId(String userId)方法使用来进行赋值
使用Authentication.getAuthenticatedUserId()方法或者
使用HistoricProcessInstance实例的getStartUserId()可以获取一个流程实例由哪个用户启动
3、使用任务id获取formKey,即url
- public String findTaskFormKeyByTaskId(String taskId) {
- TaskFormData taskFormData = formService.getTaskFormData(taskId);
- return taskFormData.getFormKey();
- }
4、使用任务id获取businessKey
- public String findBusinessKeyByTaskId(String taskId) throws Exception {
- ProcessInstance pi =
- activitiUtilServiceI.findProcessInstanceByTaskId(taskId);
- String businessKey = pi.getBusinessKey();
- if(StringUtils.isEmpty(businessKey)){
- throw new Exception("无法找到任务的BusinessKey");
- }
- return businessKey;
- }
5、组任务拾取
- if(StringUtils.isEmpty(task.getAssignee())){
- taskService.claim(taskId, currentAssignee);
- }
6、查询待办任务
(1)等待被签收的任务
- List<Task> list = taskService.createTaskQuery()
- .taskCandidateUser("userId")
- .list();
(2)查询全部任务
- List<Task> list = taskService.createTaskQuery()
- .taskCandidateOrAssigned("userId")
- .list();
(3)更细致查询全部与给定用户相关的任务
- TaskQuery query = taskService.createTaskQuery().taskInvolvedUser("userId");
小结:taskInvolvedUser()与taskCandidateUser()的区别就在于前者包含了参与人、候选人,以及属于某个候选组的人,
而后者只在候选人、候选组范围内查询
7、使用任务id查询该activityImpl节点的信息
- public ActivityImpl findActivitiImpl(String taskId, String activityId)
- throws Exception {
- ProcessDefinitionEntity processDefinition =
- findProcessDefinitionEntityByTaskId(taskId);
- if (StringUtils.isEmpty(activityId)) {
- activityId = findTaskById(taskId).getTaskDefinitionKey();
- }
- ActivityImpl activityImpl =
- ((ProcessDefinitionImpl) processDefinition)
- .findActivity(activityId);
- return activityImpl;
- }
8、查询流程批注信息
- public List<Comment> findCommentByTaskId(String taskId) {
- Task task =
- taskService.createTaskQuery()
- .taskId(taskId)
- .singleResult();
- List<Comment> list = taskService.getProcessInstanceComments(task.getProcessInstanceId());
- return list;
- }
9、添加流程批注信息
- Task task =
- taskService.createTaskQuery()
- .taskId(taskId)
- .singleResult();
- taskService.addComment(taskId, task.getProcessInstanceId(), message);
10、获取表单属性控制
- TaskFormData taskFormData = formService.getTaskFormData(taskId);
- List<FormProperty> formPropertiesList = taskFormData.getFormProperties();
11、获取变量值
- public Object getVariablesByTask(String taskId,String variableName){
- Object variable = taskService.getVariable(taskId, variableName);
- return variable;
- }