(三)Activiti之第一个程序以及Activiti插件的使用和Activiti表的解释

 

一、案例

  1.1  建立Activiti Diagram图

  • new -》 activiti -》Activiti Diagram,创建一个HelloWorld文件,后缀自动为bpmn,如下图定义好流程之后,保存该bpmn文件就会生成下图中的png图片

  • 用xml打开该bmpn文件,有
<?xml version="1.0" encoding="UTF-8"?>
<definitions xmlns="http://www.omg.org/spec/BPMN/20100524/MODEL" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:activiti="http://activiti.org/bpmn" xmlns:bpmndi="http://www.omg.org/spec/BPMN/20100524/DI" xmlns:omgdc="http://www.omg.org/spec/DD/20100524/DC" xmlns:omgdi="http://www.omg.org/spec/DD/20100524/DI" typeLanguage="http://www.w3.org/2001/XMLSchema" expressionLanguage="http://www.w3.org/1999/XPath" targetNamespace="http://www.activiti.org/test">
  <process id="myFirstProcess" name="My  First process" isExecutable="true">
    <startEvent id="startevent1" name="Start"></startEvent>
    <userTask id="usertask1" name="用户节点" activiti:assignee="shyroke"></userTask>
    <endEvent id="endevent1" name="End"></endEvent>
    <sequenceFlow id="flow1" sourceRef="startevent1" targetRef="usertask1"></sequenceFlow>
    <sequenceFlow id="flow2" sourceRef="usertask1" targetRef="endevent1"></sequenceFlow>
  </process>
  <bpmndi:BPMNDiagram id="BPMNDiagram_myFirstProcess">
    <bpmndi:BPMNPlane bpmnElement="myFirstProcess" id="BPMNPlane_myFirstProcess">
      <bpmndi:BPMNShape bpmnElement="startevent1" id="BPMNShape_startevent1">
        <omgdc:Bounds height="35.0" width="35.0" x="340.0" y="40.0"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="usertask1" id="BPMNShape_usertask1">
        <omgdc:Bounds height="55.0" width="105.0" x="310.0" y="140.0"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="endevent1" id="BPMNShape_endevent1">
        <omgdc:Bounds height="35.0" width="35.0" x="340.0" y="280.0"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNEdge bpmnElement="flow1" id="BPMNEdge_flow1">
        <omgdi:waypoint x="357.0" y="75.0"></omgdi:waypoint>
        <omgdi:waypoint x="362.0" y="140.0"></omgdi:waypoint>
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge bpmnElement="flow2" id="BPMNEdge_flow2">
        <omgdi:waypoint x="362.0" y="195.0"></omgdi:waypoint>
        <omgdi:waypoint x="357.0" y="280.0"></omgdi:waypoint>
      </bpmndi:BPMNEdge>
    </bpmndi:BPMNPlane>
  </bpmndi:BPMNDiagram>
</definitions>

 

   1.2  部署流程定义

package com.shyroke.activiti.firstActiviti;

import org.activiti.engine.ProcessEngine;
import org.activiti.engine.ProcessEngines;
import org.activiti.engine.repository.Deployment;
import org.junit.Test;

/**
 * HelloWorld 工作流
 * 
 * @author 半颗柠檬、
 *
 */
public class HelloWorldProcess {

    /**
     * 获取默认流程引擎实例,会自动读取activiti.cfg.xml文件
     */
    private ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();

    /**
     * 部署流程定义
     */
    @Test
    public void test_Deploy() {
        Deployment deployment=processEngine.getRepositoryService() // 获取部署相关Service
        .createDeployment()   //// 创建部署
        .addClasspathResource("diagrams/HelloWorld.bpmn") // 加载资源文件
        .addClasspathResource("diagrams/HelloWorld.png") // 加载资源文件
        .name("HelloWorld流程") //流程名称
        .deploy();   //部署
        
        System.out.println("流程部署ID:"+deployment.getId()); 
        System.out.println("流程部署Name:"+deployment.getName());
    }

}
  • 结果:

  • 执行完这步之后,act_re_deployment表会新增一条部署记录

  • 也会新增act_re_procdef流程定义表(processDefine)

  • 新增资源文件表act_ge_bytearray

  • 更新系统配置表 act_ge_property

 

 

   1.3  启动流程实例

 

package com.shyroke.activiti.firstActiviti;

import org.activiti.engine.ProcessEngine;
import org.activiti.engine.ProcessEngines;
import org.activiti.engine.repository.Deployment;
import org.activiti.engine.runtime.ProcessInstance;
import org.junit.Test;

/**
 * HelloWorld 工作流
 * 
 * @author 半颗柠檬、
 *
 */
public class HelloWorldProcess {

    /**
     * 获取默认流程引擎实例,会自动读取activiti.cfg.xml文件
     */
    private ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();
/**
     * 启动流程实例
     */
    @Test
    public void test_proceinst() {
        ProcessInstance instance=processEngine.getRuntimeService() // 运行时Service
            .startProcessInstanceByKey("myFirstProcess");   // 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()); 
    }
}
  • 执行用例结果:

这里的id是系统配置表 act_ge_property中id生成的。

  • 执行完这步之后,流程实例运行时 执行对象表act_ru_execution

 

  • 流程实例运行时 身份联系表act_ru_identitylink

 

  • 流程实例运行时 用户任务表act_ru_task

  • 活动节点历史表act_hi_actinst:

  • 身份联系表 历史act_hi_identitylink

 

  • 流程实例表 历史act_hi_procinst

  • 历史任务表act_hi_taskinst

 

 

   1.4  查看任务

package com.shyroke.activiti.firstActiviti;

import java.util.List;

import org.activiti.engine.ProcessEngine;
import org.activiti.engine.ProcessEngines;
import org.activiti.engine.repository.Deployment;
import org.activiti.engine.runtime.ProcessInstance;
import org.activiti.engine.task.Task;
import org.junit.Test;

/**
 * HelloWorld 工作流
 * 
 * @author 半颗柠檬、
 *
 */
public class HelloWorldProcess {

    /**
     * 获取默认流程引擎实例,会自动读取activiti.cfg.xml文件
     */
    private ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();/**
     * 查看任务
     */
    @Test
    public void find_task() {
        
        List<Task> taskList=processEngine.getTaskService().createTaskQuery().taskAssignee("shyroke").list();
        for(Task task:taskList){
            System.out.println("任务ID:"+task.getId()); 
            System.out.println("任务名称:"+task.getName());
            System.out.println("任务创建时间:"+task.getCreateTime());
            System.out.println("任务委派人:"+task.getAssignee());
            System.out.println("流程实例ID:"+task.getProcessInstanceId());
        }
    }
    
}
  • 执行测试用例及结果

 

   1.5  完成任务

 

package com.shyroke.activiti.firstActiviti;

import java.util.List;

import org.activiti.engine.ProcessEngine;
import org.activiti.engine.ProcessEngines;
import org.activiti.engine.repository.Deployment;
import org.activiti.engine.runtime.ProcessInstance;
import org.activiti.engine.task.Task;
import org.junit.Test;

/**
 * HelloWorld 工作流
 * 
 * @author 半颗柠檬、
 *
 */
public class HelloWorldProcess {

    /**
     * 获取默认流程引擎实例,会自动读取activiti.cfg.xml文件
     */
    private ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();

    
    /**
     * 完成任务
     */
    @Test
    public void test_completeTask() {
        processEngine.getTaskService().complete("2504");
    }
    
}
  • 执行测试用例,结果

 

  •  #运行时的表以act_ru开头的表(如下图)的数据全部清空

  • # 历史表以act_hi开头的表表数据修改 或者增加了数据

 

 

posted @ 2017-12-05 21:52  shyroke、  阅读(1641)  评论(0编辑  收藏  举报
作者:shyroke 博客地址:http://www.cnblogs.com/shyroke/ 转载注明来源~