（十）Activitivi5之啟動流程/完成任務的時候設置流程變量

一、啟動流程的時候設置流程變量

　　1.1 案例

    /**
     * 啟動流程實例
     */
    @Test
    public void start() {
        Student student=new Student();
        student.setId(1);
        student.setName("張三");

        Map<String, Object> variables=new HashMap<String,Object>();
        variables.put("days", 2);
        variables.put("date", new Date());
        variables.put("reason", "發燒");
        variables.put("student", student);
        
        ProcessInstance instance=processEngine.getRuntimeService() // 運行時Service
            .startProcessInstanceByKey("StudentLeaveProcess",variables);   // 流程定義表act_re_procdef的KEY字段值
        
        System.out.println("流程實例ID:"+instance.getId());
        System.out.println("流程定義ID:"+instance.getProcessDefinitionId()); 
    }
    

• 如上述例子流程啟動之后，任何任務節點都可以通過excutionId獲取到流程變量的值。
• 

   

    /**
     * 獲取流程變量數據
     */
    @Test
    public void getVariableValues(){
        RuntimeService runtimeService=processEngine.getRuntimeService();
        String excutionId="52501";
        Integer days=(Integer) runtimeService.getVariable(excutionId, "days");
         Date date=(Date) runtimeService.getVariableLocal(excutionId, "date");
        String reason=(String) runtimeService.getVariable(excutionId, "reason");
        Student student=(Student) runtimeService.getVariable(excutionId, "student"); 
        System.out.println("請假天數："+days);
        System.out.println("請假日期："+date);
        System.out.println("請假原因："+reason);
        System.out.println("請假對象："+student.getId()+","+student.getName());
    }

 

 

 二、完成任務的時候設置流程變量

 　　2.1　　需求

• 在完成某個任務節點之后設置流程變量，接下來的任務節點都可以使用這個流程變量。

 比如，當完成“學生請假”任務節點之后設置流程變量，然后在“班長審批”和“班主任審批”節點就可以獲取該流程變量。

 

　　2.2　　案例

 

/**
     * 完成任務
     */
    @Test
    public void test_completeTask2() {
        
        Student student=new Student();
        student.setId(1);
        student.setName("張三");

        Map<String, Object> variables=new HashMap<String,Object>();
        variables.put("days", 2);
        variables.put("date", new Date());
        variables.put("reason", "發燒");
        variables.put("student", student);
        
       processEngine.getTaskService().complete("62504",variables);
    }
    

    /**
     * 獲取流程變量數據
     */
    @Test
    public void getVariableValues(){
        RuntimeService runtimeService=processEngine.getRuntimeService();
        String excutionId="62501";
        Integer days=(Integer) runtimeService.getVariable(excutionId, "days");
         Date date=(Date) runtimeService.getVariableLocal(excutionId, "date");
        String reason=(String) runtimeService.getVariable(excutionId, "reason");
        Student student=(Student) runtimeService.getVariable(excutionId, "student"); 
        System.out.println("請假天數："+days);
        System.out.println("請假日期："+date);
        System.out.println("請假原因："+reason);
        System.out.println("請假對象："+student.getId()+","+student.getName());
    }