Activiti6：模拟钉钉上面的请假流程(使用web画图并导出xml然后使用java执行流程)

1.声明

当前内容主要为本人学习和测试Activiti6这个工作流的基本操作，模拟钉钉上面的请假流程(简单版)

当前内容主要有：

使用官方的web-app方式画图
将当前流程图导出为xml配置
将xml配置导入项目，并使用java方式加载并实现流程执行

2.画出请假执行流程图

其中都是使用最简单的元素

重要点：
1.启动当前流程需要三个：员工名称，请假时间，请假类型

例如下面参数：

此时发起流程就必须这些参数，注意required设置为true

流程发起后，通过审核人，此时审核人需要一个参数来执行后面是否允许请假通过，同样的设置为approve，设置为boolean类型

之后流程到了条件判断，这里其实就是判断当前的定义的变量approve==true或者approve==false

然后后面的审核人和判断就和这个一样即可完成条件判断(所以这里省略后面的userTask和条件判断)

之后到达抄送人

此时流程执行结束

保存后(上面的请假类型是枚举所以需要在生成的xml中修改)

3.将画出的图导出为xml文件

导出内容如下

<?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/processdef"><process id="OffWork" name="OffWork" isExecutable="true"><documentation>钉钉上的请假流程</documentation><startEvent id="offWorkStart" name="发起请求"><extensionElements><activiti:formProperty id="username" name="员工名称" type="string" required="true"></activiti:formProperty><activiti:formProperty id="offwork_type" name="请假类型" type="enum" required="true"></activiti:formProperty><activiti:formProperty id="offwork_day" name="请假天数" type="long" required="true"></activiti:formProperty></extensionElements></startEvent><userTask id="sp_1" name="审批人：人事部" activiti:candidateGroups="management"><extensionElements><activiti:formProperty id="approve" name="是否同意" type="boolean" required="true"></activiti:formProperty></extensionElements></userTask><userTask id="sp_2" name="审批人：人事部主管" activiti:candidateGroups="management"><extensionElements><activiti:formProperty id="approve" name="是否同意" type="boolean" required="true"></activiti:formProperty></extensionElements></userTask><endEvent id="offWorkEnd" name="结束"></endEvent><exclusiveGateway id="sp_1_check" name="判断"></exclusiveGateway><exclusiveGateway id="sp_2_check" name="判断"></exclusiveGateway><userTask id="send_person" name="抄送人" activiti:candidateGroups="system"></userTask><sequenceFlow id="sd_boss" name="抄送给总经理" sourceRef="send_person" targetRef="mail_to_boss"></sequenceFlow><sequenceFlow id="diapatcher_to_csr" name="转发" sourceRef="sp_2" targetRef="sp_2_check"></sequenceFlow><sequenceFlow id="cs_ms_end" name="抄送结束" sourceRef="mail_to_ms" targetRef="offWorkEnd"></sequenceFlow><sequenceFlow id="cs_boss_end" name="抄送结束" sourceRef="mail_to_boss" targetRef="offWorkEnd"></sequenceFlow><sequenceFlow id="sp_1_disapprove" name="不同意" sourceRef="sp_1_check" targetRef="offWorkEnd"><conditionExpression xsi:type="tFormalExpression"><![CDATA[${approve=='false'}]]></conditionExpression></sequenceFlow><sequenceFlow id="sp_2_approve" name="同意" sourceRef="sp_2_check" targetRef="send_person"><conditionExpression xsi:type="tFormalExpression"><![CDATA[${approve=='true'}]]></conditionExpression></sequenceFlow><sequenceFlow id="sp_2_disapprove" name="不同意" sourceRef="sp_2_check" targetRef="offWorkEnd"><conditionExpression xsi:type="tFormalExpression"><![CDATA[${approve=='false'}]]></conditionExpression></sequenceFlow><sequenceFlow id="dispatcher_to_zg" name="转发" sourceRef="sp_1" targetRef="sp_1_check"></sequenceFlow><sequenceFlow id="sp_1_approve" name="同意" sourceRef="sp_1_check" targetRef="sp_2"><conditionExpression xsi:type="tFormalExpression"><![CDATA[${approve=='true'}]]></conditionExpression></sequenceFlow><manualTask id="mail_to_ms" name="发送邮件给秘书"></manualTask><manualTask id="mail_to_boss" name="发送邮件给总经理"></manualTask><sequenceFlow id="sd_ms" name="抄送给秘书" sourceRef="send_person" targetRef="mail_to_ms"></sequenceFlow><sequenceFlow id="submit_offwork" name="提交请假请求" sourceRef="offWorkStart" targetRef="sp_1"></sequenceFlow></process><bpmndi:BPMNDiagram id="BPMNDiagram_OffWork"><bpmndi:BPMNPlane bpmnElement="OffWork" id="BPMNPlane_OffWork"><bpmndi:BPMNShape bpmnElement="offWorkStart" id="BPMNShape_offWorkStart"><omgdc:Bounds height="30.0" width="30.0" x="120.0" y="163.0"></omgdc:Bounds></bpmndi:BPMNShape><bpmndi:BPMNShape bpmnElement="sp_1" id="BPMNShape_sp_1"><omgdc:Bounds height="80.0" width="100.0" x="240.0" y="138.0"></omgdc:Bounds></bpmndi:BPMNShape><bpmndi:BPMNShape bpmnElement="sp_2" id="BPMNShape_sp_2"><omgdc:Bounds height="80.0" width="100.0" x="480.0" y="138.0"></omgdc:Bounds></bpmndi:BPMNShape><bpmndi:BPMNShape bpmnElement="offWorkEnd" id="BPMNShape_offWorkEnd"><omgdc:Bounds height="28.0" width="28.0" x="1050.0" y="330.0"></omgdc:Bounds></bpmndi:BPMNShape><bpmndi:BPMNShape bpmnElement="sp_1_check" id="BPMNShape_sp_1_check"><omgdc:Bounds height="40.0" width="40.0" x="390.0" y="158.0"></omgdc:Bounds></bpmndi:BPMNShape><bpmndi:BPMNShape bpmnElement="sp_2_check" id="BPMNShape_sp_2_check"><omgdc:Bounds height="40.0" width="40.0" x="625.0" y="158.0"></omgdc:Bounds></bpmndi:BPMNShape><bpmndi:BPMNShape bpmnElement="send_person" id="BPMNShape_send_person"><omgdc:Bounds height="80.0" width="100.0" x="720.0" y="138.0"></omgdc:Bounds></bpmndi:BPMNShape><bpmndi:BPMNShape bpmnElement="mail_to_ms" id="BPMNShape_mail_to_ms"><omgdc:Bounds height="80.0" width="100.0" x="930.0" y="75.0"></omgdc:Bounds></bpmndi:BPMNShape><bpmndi:BPMNShape bpmnElement="mail_to_boss" id="BPMNShape_mail_to_boss"><omgdc:Bounds height="80.0" width="100.0" x="930.0" y="180.0"></omgdc:Bounds></bpmndi:BPMNShape><bpmndi:BPMNEdge bpmnElement="sd_boss" id="BPMNEdge_sd_boss"><omgdi:waypoint x="820.0" y="178.375"></omgdi:waypoint><omgdi:waypoint x="930.0" y="219.625"></omgdi:waypoint></bpmndi:BPMNEdge><bpmndi:BPMNEdge bpmnElement="cs_boss_end" id="BPMNEdge_cs_boss_end"><omgdi:waypoint x="980.0" y="260.0"></omgdi:waypoint><omgdi:waypoint x="980.0" y="344.0"></omgdi:waypoint><omgdi:waypoint x="1050.0" y="344.0"></omgdi:waypoint></bpmndi:BPMNEdge><bpmndi:BPMNEdge bpmnElement="diapatcher_to_csr" id="BPMNEdge_diapatcher_to_csr"><omgdi:waypoint x="580.0" y="178.2164502164502"></omgdi:waypoint><omgdi:waypoint x="625.4130434782609" y="178.41304347826087"></omgdi:waypoint></bpmndi:BPMNEdge><bpmndi:BPMNEdge bpmnElement="sp_2_disapprove" id="BPMNEdge_sp_2_disapprove"><omgdi:waypoint x="645.5" y="197.5"></omgdi:waypoint><omgdi:waypoint x="645.5" y="344.0"></omgdi:waypoint><omgdi:waypoint x="1050.0" y="344.0"></omgdi:waypoint></bpmndi:BPMNEdge><bpmndi:BPMNEdge bpmnElement="sp_1_disapprove" id="BPMNEdge_sp_1_disapprove"><omgdi:waypoint x="410.5" y="197.5"></omgdi:waypoint><omgdi:waypoint x="410.5" y="344.0"></omgdi:waypoint><omgdi:waypoint x="1050.0" y="344.0"></omgdi:waypoint></bpmndi:BPMNEdge><bpmndi:BPMNEdge bpmnElement="submit_offwork" id="BPMNEdge_submit_offwork"><omgdi:waypoint x="150.0" y="178.0"></omgdi:waypoint><omgdi:waypoint x="240.0" y="178.0"></omgdi:waypoint></bpmndi:BPMNEdge><bpmndi:BPMNEdge bpmnElement="sd_ms" id="BPMNEdge_sd_ms"><omgdi:waypoint x="820.0" y="157.61607142857144"></omgdi:waypoint><omgdi:waypoint x="930.0" y="115.38392857142857"></omgdi:waypoint></bpmndi:BPMNEdge><bpmndi:BPMNEdge bpmnElement="sp_2_approve" id="BPMNEdge_sp_2_approve"><omgdi:waypoint x="664.5766129032259" y="178.4233870967742"></omgdi:waypoint><omgdi:waypoint x="720.0" y="178.2008032128514"></omgdi:waypoint></bpmndi:BPMNEdge><bpmndi:BPMNEdge bpmnElement="dispatcher_to_zg" id="BPMNEdge_dispatcher_to_zg"><omgdi:waypoint x="340.0" y="178.20746887966806"></omgdi:waypoint><omgdi:waypoint x="390.4166666666667" y="178.41666666666666"></omgdi:waypoint></bpmndi:BPMNEdge><bpmndi:BPMNEdge bpmnElement="sp_1_approve" id="BPMNEdge_sp_1_approve"><omgdi:waypoint x="429.6357142857143" y="178.36428571428573"></omgdi:waypoint><omgdi:waypoint x="480.0" y="178.00709219858157"></omgdi:waypoint></bpmndi:BPMNEdge><bpmndi:BPMNEdge bpmnElement="cs_ms_end" id="BPMNEdge_cs_ms_end"><omgdi:waypoint x="1030.0" y="115.0"></omgdi:waypoint><omgdi:waypoint x="1064.0" y="115.0"></omgdi:waypoint><omgdi:waypoint x="1064.0" y="330.0"></omgdi:waypoint></bpmndi:BPMNEdge></bpmndi:BPMNPlane></bpmndi:BPMNDiagram>
</definitions>

4.开始补充部分内容

直接将该xml拷贝到项目中，然后找到enum这个请假类型的地方开始补充

<activiti:formProperty id="offwork_type" name="请假类型" type="enum" required="true"><activiti:value id="illVacation" name="病假"></activiti:value><activiti:value id="birthVacation" name="产假"></activiti:value><activiti:value id="ownerVacation" name="个人假"></activiti:value>
</activiti:formProperty>

5.执行java测试

import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.activiti.engine.ProcessEngine;
import org.activiti.engine.ProcessEngineConfiguration;
import org.activiti.engine.ProcessEngines;
import org.activiti.engine.RepositoryService;
import org.activiti.engine.RuntimeService;
import org.activiti.engine.TaskService;
import org.activiti.engine.runtime.ProcessInstance;
import org.activiti.engine.task.Task;public class OffWorkActiviti6Test {public static void main(String[] args) {/*ProcessEngine processEngine = ProcessEngineConfiguration.createStandaloneInMemProcessEngineConfiguration()* .setDatabaseSchemaUpdate(ProcessEngineConfiguration.DB_SCHEMA_UPDATE_FALSE)* .setJdbcUrl("jdbc:h2:mem:my-own-db;DB_CLOSE_DELAY=1000")* .setAsyncExecutorActivate(false) .buildProcessEngine();*/// 1. 加载对应的activiti的xml配置文件// ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();ProcessEngine processEngine = ProcessEngineConfiguration.createStandaloneInMemProcessEngineConfiguration().setDatabaseSchemaUpdate(ProcessEngineConfiguration.DB_SCHEMA_UPDATE_TRUE).setJdbcUrl("jdbc:mysql://localhost:3306/hy_activiti6").setJdbcDriver("com.mysql.jdbc.Driver").setJdbcUsername("root").setJdbcPassword("root").setAsyncExecutorActivate(false).buildProcessEngine();RepositoryService repositoryService = processEngine.getRepositoryService();repositoryService.createDeployment().addClasspathResource("OffWork.bpmn20.xml").deploy();System.out .println("Number of process definitions: " + repositoryService.createProcessDefinitionQuery().count());// 创建一个雇员的名称为：Kermit发起一个请假流程，请1天病假String username = "Kermit";Map<String, Object> variables = new HashMap<String, Object>();variables.put("username", username);variables.put("type", "illVacation");variables.put("offWorkDays", 1);RuntimeService runtimeService = processEngine.getRuntimeService();// 这里为发起实际的请假请求ProcessInstance processInstance = runtimeService.startProcessInstanceByKey("OffWork", variables);// Verify that we started a new process instanceSystem.out.println("Number of process instances: " + runtimeService.createProcessInstanceQuery().count());System.out.println("员工：" + username + ",发起" + 1 + "天病假的请求");// 管理组获取所有的任务请求(包括请假等事项)// Fetch all tasks for the management groupTaskService taskService = processEngine.getTaskService();List<Task> tasks = taskService.createTaskQuery().taskCandidateGroup("management").list();for (Task task : tasks) {System.out.println("Task available: " + task.getName());}// 同意请求,让下一位进行处理Task offWorkTask = tasks.get(0);variables = new HashMap<String, Object>();variables.put("approve", true);taskService.complete(offWorkTask.getId(), variables);System.out.println("人事部人员同意请假请求....");// 再次获取,下一个人的执行流程tasks = taskService.createTaskQuery().taskCandidateGroup("management").list();for (Task task : tasks) {System.out.println("Task available: " + task.getName());}// 人事部主管同意请求offWorkTask = tasks.get(0);variables = new HashMap<String, Object>();variables.put("approve", true);taskService.complete(offWorkTask.getId(), variables);System.out.println("人事部主管同意请假请求....");//系统执行抄送任务给当前的经理和秘书        tasks = taskService.createTaskQuery().taskCandidateGroup("system").list();for (Task task : tasks) {System.out.println("Task available: " + task.getName());}// 任务完成offWorkTask = tasks.get(0);taskService.complete(offWorkTask.getId());System.out.println("系统自动转发当前的请假给总经理和秘书....");}
}

执行结果：

查看数据库结果

整个流程执行成功！

6.总结

使用官方的web app的流程设计器和下载xml方式简化了开发步骤，和流程xml的编写，很容易编写(但是要小心传递的参数问题和判断条件问题)