10 API（5）任务参数与附件

 

1. 任务参数

 

1.1 基本数据类型参数

ACT_RU_VARIABLE

 

代码

package com.study.c10;

import org.activiti.engine.ProcessEngine;
import org.activiti.engine.ProcessEngines;
import org.activiti.engine.TaskService;
import org.activiti.engine.task.Task;

import java.util.UUID;

public class VarTest {

    public static void main(String[] args) {
        ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();
        TaskService taskService = processEngine.getTaskService();
        String taskId = UUID.randomUUID().toString();
        Task task = taskService.newTask(taskId);
        task.setName("test");

        taskService.saveTask(task);
        taskService.setVariable(taskId, "var1", "hello");
        System.out.println(taskService.getVariable(taskId,"var1"));
    }
}

控制台输出：

hello

ACT_RU_VARIABLE新增一条数据，可见值‘hello’保存于TEXT_字段中，

由本表的DDL可看出对于基本数据类型，仅需要保存于ACT_RU_VARIABLE表

CREATE TABLE `ACT_RU_VARIABLE` (
  `ID_` varchar(64) COLLATE utf8_bin NOT NULL,
  `REV_` int(11) DEFAULT NULL,
  `TYPE_` varchar(255) COLLATE utf8_bin NOT NULL,
  `NAME_` varchar(255) COLLATE utf8_bin NOT NULL,
  `EXECUTION_ID_` varchar(64) COLLATE utf8_bin DEFAULT NULL,
  `PROC_INST_ID_` varchar(64) COLLATE utf8_bin DEFAULT NULL,
  `TASK_ID_` varchar(64) COLLATE utf8_bin DEFAULT NULL,
  `BYTEARRAY_ID_` varchar(64) COLLATE utf8_bin DEFAULT NULL,
  `DOUBLE_` double DEFAULT NULL,
  `LONG_` bigint(20) DEFAULT NULL,
  `TEXT_` varchar(4000) COLLATE