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  • (十)Activitivi5之启动流程/完成任务的时候设置流程变量

    一、启动流程的时候设置流程变量

      1.1 案例

        /**
         * 启动流程实例
         */
        @Test
        public void start() {
            Student student=new Student();
            student.setId(1);
            student.setName("张三");
    
            Map<String, Object> variables=new HashMap<String,Object>();
            variables.put("days", 2);
            variables.put("date", new Date());
            variables.put("reason", "发烧");
            variables.put("student", student);
            
            ProcessInstance instance=processEngine.getRuntimeService() // 运行时Service
                .startProcessInstanceByKey("StudentLeaveProcess",variables);   // 流程定义表act_re_procdef的KEY字段值
            
            System.out.println("流程实例ID:"+instance.getId());
            System.out.println("流程定义ID:"+instance.getProcessDefinitionId()); 
        }
        
    • 如上述例子流程启动之后,任何任务节点都可以通过excutionId获取到流程变量的值。
        /**
         * 获取流程变量数据
         */
        @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("请假天数:"+days);
            System.out.println("请假日期:"+date);
            System.out.println("请假原因:"+reason);
            System.out.println("请假对象:"+student.getId()+","+student.getName());
        }

     二、完成任务的时候设置流程变量

       2.1  需求

    • 在完成某个任务节点之后设置流程变量,接下来的任务节点都可以使用这个流程变量。

     比如,当完成“学生请假”任务节点之后设置流程变量,然后在“班长审批”和“班主任审批”节点就可以获取该流程变量。

      2.2  案例

    /**
         * 完成任务
         */
        @Test
        public void test_completeTask2() {
            
            Student student=new Student();
            student.setId(1);
            student.setName("张三");
    
            Map<String, Object> variables=new HashMap<String,Object>();
            variables.put("days", 2);
            variables.put("date", new Date());
            variables.put("reason", "发烧");
            variables.put("student", student);
            
            processEngine.getTaskService().complete("62504",variables);
        }
        
        /**
         * 获取流程变量数据
         */
        @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("请假天数:"+days);
            System.out.println("请假日期:"+date);
            System.out.println("请假原因:"+reason);
            System.out.println("请假对象:"+student.getId()+","+student.getName());
        }
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  • 原文地址:https://www.cnblogs.com/shyroke/p/8000757.html
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