（十）Activitivi5之启动流程/完成任务的时候设置流程变量_processinstance instance = activitiprocessenginefa-优快云博客

本文链接：https://blog.youkuaiyun.com/xiamaocheng/article/details/120983256

本文详细介绍了在Activiti中如何在启动流程和完成任务时设置流程变量，并展示了相应的代码示例。启动流程时通过RuntimeService设置变量，完成任务时通过TaskService设置变量，并提供了获取流程变量的方法。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

LD is tigger forever，CG are not brothers forever， throw the pot and shine forever.
Modesty is not false, solid is not naive, treacherous but not deceitful, stay with good people, and stay away from poor people.
talk is cheap, show others the code and KPI， Keep progress，make a better result.
Survive during the day and develop at night。

 /**
     * 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()); 
    }

 /**
     * 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

 @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());
    }