完成任務需要用到TaskService.


常用的方法有：
1，
void     complete(String taskId)
Called when the task is successfully executed.

2，
void     complete(String taskId, Map<String,Object> variables)
Called when the task is successfully executed, and the required task parameters are given by the end-user.

3，
void     complete(String taskId, Map<String,Object> variables, boolean localScope)
Called when the task is successfully executed, and the required task paramaters are given by the end-user.




另外，獲取特定使用者的所有待辦任務的方法為：
taskService.createTaskQuery().taskCandidateOrAssigned(user.getId()).active();

排序：
taskService.createTaskQuery().taskCandidateOrAssigned(user.getId()).active().orderByTaskId().desc().list();