activiti工作流会签例子

最新推荐文章于 2023-11-21 23:00:18 发布

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最新推荐文章于 2023-11-21 23:00:18 发布

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分类专栏： activiti工作流 java

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本文详细介绍了一个基于BPMN的请假申请流程实现，包括流程图的绘制、Java代码示例及流程变量的设置。通过多实例并行会签、条件判断等特性，实现了灵活的流程控制。

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1.bpmn文件

<?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="applyHoliday2" name="请假申请" isExecutable="true">
    <startEvent id="startevent1" name="Start"></startEvent>
    <userTask id="usertask1" name="申请"></userTask>
    <sequenceFlow id="flow1" sourceRef="startevent1" targetRef="usertask1"></sequenceFlow>
    <userTask id="usertask2" name="会签" activiti:assignee="${signer}">
      <multiInstanceLoopCharacteristics isSequential="false" activiti:collection="${signList}" activiti:elementVariable="signer">
        <completionCondition>${nrOfCompletedInstances==1}</completionCondition>
      </multiInstanceLoopCharacteristics>
    </userTask>
    <sequenceFlow id="flow2" sourceRef="usertask1" targetRef="usertask2"></sequenceFlow>
    <userTask id="usertask3" name="记录"></userTask>
    <endEvent id="endevent1" name="End"></endEvent>
    <sequenceFlow id="flow4" sourceRef="usertask3" targetRef="endevent1"></sequenceFlow>
    <exclusiveGateway id="exclusivegateway1" name="Exclusive Gateway"></exclusiveGateway>
    <sequenceFlow id="flow7" sourceRef="usertask2" targetRef="exclusivegateway1"></sequenceFlow>
    <sequenceFlow id="flow8" name="通过" sourceRef="exclusivegateway1" targetRef="usertask3">
      <conditionExpression xsi:type="tFormalExpression"><![CDATA[${result == "Y"}]]></conditionExpression>
    </sequenceFlow>
    <sequenceFlow id="flow9" name="拒绝" sourceRef="exclusivegateway1" targetRef="usertask1">
      <conditionExpression xsi:type="tFormalExpression"><![CDATA[${result == "N"}]]></conditionExpression>
    </sequenceFlow>
  </process>
  <bpmndi:BPMNDiagram id="BPMNDiagram_applyHoliday2">
    <bpmndi:BPMNPlane bpmnElement="applyHoliday2" id="BPMNPlane_applyHoliday2">
      <bpmndi:BPMNShape bpmnElement="startevent1" id="BPMNShape_startevent1">
        <omgdc:Bounds height="35.0" width="35.0" x="250.0" y="210.0"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="usertask1" id="BPMNShape_usertask1">
        <omgdc:Bounds height="55.0" width="105.0" x="330.0" y="200.0"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="usertask2" id="BPMNShape_usertask2">
        <omgdc:Bounds height="55.0" width="105.0" x="500.0" y="200.0"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="usertask3" id="BPMNShape_usertask3">
        <omgdc:Bounds height="55.0" width="105.0" x="860.0" y="200.0"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="endevent1" id="BPMNShape_endevent1">
        <omgdc:Bounds height="35.0" width="35.0" x="1080.0" y="210.0"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="exclusivegateway1" id="BPMNShape_exclusivegateway1">
        <omgdc:Bounds height="40.0" width="40.0" x="710.0" y="207.0"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNEdge bpmnElement="flow1" id="BPMNEdge_flow1">
        <omgdi:waypoint x="285.0" y="227.0"></omgdi:waypoint>
        <omgdi:waypoint x="330.0" y="227.0"></omgdi:waypoint>
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge bpmnElement="flow2" id="BPMNEdge_flow2">
        <omgdi:waypoint x="435.0" y="227.0"></omgdi:waypoint>
        <omgdi:waypoint x="500.0" y="227.0"></omgdi:waypoint>
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge bpmnElement="flow4" id="BPMNEdge_flow4">
        <omgdi:waypoint x="965.0" y="227.0"></omgdi:waypoint>
        <omgdi:waypoint x="1080.0" y="227.0"></omgdi:waypoint>
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge bpmnElement="flow7" id="BPMNEdge_flow7">
        <omgdi:waypoint x="605.0" y="227.0"></omgdi:waypoint>
        <omgdi:waypoint x="710.0" y="227.0"></omgdi:waypoint>
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge bpmnElement="flow8" id="BPMNEdge_flow8">
        <omgdi:waypoint x="750.0" y="227.0"></omgdi:waypoint>
        <omgdi:waypoint x="860.0" y="227.0"></omgdi:waypoint>
        <bpmndi:BPMNLabel>
          <omgdc:Bounds height="14.0" width="24.0" x="750.0" y="227.0"></omgdc:Bounds>
        </bpmndi:BPMNLabel>
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge bpmnElement="flow9" id="BPMNEdge_flow9">
        <omgdi:waypoint x="730.0" y="247.0"></omgdi:waypoint>
        <omgdi:waypoint x="729.0" y="354.0"></omgdi:waypoint>
        <omgdi:waypoint x="382.0" y="354.0"></omgdi:waypoint>
        <omgdi:waypoint x="382.0" y="255.0"></omgdi:waypoint>
        <bpmndi:BPMNLabel>
          <omgdc:Bounds height="14.0" width="100.0" x="730.0" y="247.0"></omgdc:Bounds>
        </bpmndi:BPMNLabel>
      </bpmndi:BPMNEdge>
    </bpmndi:BPMNPlane>
  </bpmndi:BPMNDiagram>
</definitions>

2.java示例文件

package com.hdkj.activiti;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.activiti.engine.ProcessEngine;
import org.activiti.engine.ProcessEngines;
import org.activiti.engine.RuntimeService;
import org.activiti.engine.repository.Deployment;
import org.activiti.engine.runtime.ProcessInstance;
import org.activiti.engine.runtime.ProcessInstanceQuery;
import org.activiti.engine.task.Task;
import org.junit.Test;
/**
 * @author jh
 * 会签时办理人是否并行在画bpmn图时multi instance中sequential选择false为并行，true为串行
 * 编辑bpmn图，multi instance中completion condition不填为默认所有会签人员全部通过才能完成会签流程，
 * 按比例完成填写如下${nrOfCompletedInstances/nrOfInstances >= 0.5}表示4人中在有人否决前两人通过就完成会签环节
 * 按数量完成填写如下${nrOfCompletedInstances==1}表示4人中在有人否决前一人通过就完成会签环节
 */
public class HuiQian2 {
	
	ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();

	/**部署流程定义*/
	@Test
	public void deploymentProcessDefinition(){
		Deployment deployment = processEngine.getRepositoryService()//与流程定义和部署对象相关的Service
						.createDeployment()//创建一个部署对象
						.name("会签流程测试2")//添加部署的名称
						.addClasspathResource("diagrams/HuiQian2.bpmn")//从classpath的资源中加载，一次只能加载一个文件
						.addClasspathResource("diagrams/HuiQian2.png")//从classpath的资源中加载，一次只能加载一个文件
						.deploy();//完成部署
		System.out.println("部署ID："+deployment.getId());//1
		System.out.println("部署名称："+deployment.getName());//helloworld入门程序  
	}
	
	/**启动流程实例*/
	@Test
	public void startProcessInstance(){
		//流程定义的key
		String processDefinitionKey = "applyHoliday2";
//		List<String> signList=new ArrayList<String>(); //分配任务的人员
//		signList.add("tom");
//		signList.add("jeck");
//		signList.add("mary");
		//设置会签的办理人
		List<String> signList=Arrays.asList("tom", "jeck", "mary", "lily");
		Map<String, Object> vars = new HashMap<String, Object>(); //参数
		vars.put("signList", signList);
		ProcessInstance pi = processEngine.getRuntimeService()//与正在执行的流程实例和执行对象相关的Service
				.startProcessInstanceByKey(processDefinitionKey, "HuiQian220191205", vars);
//		ProcessInstance pi = processEngine.getRuntimeService()//与正在执行的流程实例和执行对象相关的Service
//				.startProcessInstanceByKey(processDefinitionKey, "HuiQian220191205", null);
		System.out.println("流程实例ID:"+pi.getId());//流程实例ID    101
		System.out.println("流程定义ID:"+pi.getProcessDefinitionId());//流程定义ID   helloworld:1:4
	}
	
	
	/**查询当前人的个人任务*/
	@Test
	public void findMyPersonalTask(){
		//sequential选择false时，会签时大家可以同时办理任务，没有先后顺序
		String assignee = "jeck";
		List<Task> list = processEngine.getTaskService()//与正在执行的任务管理相关的Service
						.createTaskQuery()//创建任务查询对象
						//.taskAssignee(assignee)//指定个人任务查询，指定办理人
						.processInstanceId("7701")//使用流程实例ID查询
						//.taskCandidateGroup(assignee)//组的写法
						.list();
		if(list!=null && list.size()>0){
			for(Task task:list){
				System.out.println("任务ID:"+task.getId());
				System.out.println("任务名称:"+task.getName());
				System.out.println("任务的创建时间:"+task.getCreateTime());
				System.out.println("任务的办理人:"+task.getAssignee());
				System.out.println("流程实例ID："+task.getProcessInstanceId());
				System.out.println("执行对象ID:"+task.getExecutionId());
				System.out.println("流程定义ID:"+task.getProcessDefinitionId());
				System.out.println("########################################################");
			}
		}
	}
	
	/**完成我的任务*/
	/**
	 * 任务ID根据上个方法可以查询出来，完成后再执行上面的方法，已经查不出来了，说明任务被执行到下一步
	 */
	@Test
	public void completeMyPersonalTask(){
		//任务ID
		String taskId = "8103";
		processEngine.getTaskService()//与正在执行的任务管理相关的Service
					.complete(taskId);
		System.out.println("完成任务：任务ID："+taskId);
	}
	
	
	/**完成我的任务,message为通过和不通过*/
	@Test
	public void completeMyPersonalTask2(){
		//任务ID
		String taskId = "8012";
		//完成任务的同时，设置流程变量，使用流程变量用来指定完成任务后，下一个连线，对应sequenceFlow.bpmn文件中${message=='不重要'}
		Map<String, Object> variables = new HashMap<String, Object>();
		variables.put("result", "Y");
		processEngine.getTaskService()//与正在执行的任务管理相关的Service
					.complete(taskId,variables);
		System.out.println("完成任务：任务ID："+taskId);
	}
	/**
	 * 查询整个流程是否完成
	 */
	@Test
	public void isEnd(){
		//第二部的流程实例ID
		String processInstance_Id="7701";
		RuntimeService runtimeService = processEngine.getRuntimeService();
		ProcessInstanceQuery createProcessInstanceQuery = runtimeService.createProcessInstanceQuery();
		ProcessInstanceQuery processInstanceId = createProcessInstanceQuery.processInstanceId(processInstance_Id);
		ProcessInstance singleResult = processInstanceId.singleResult();
		if(singleResult==null){
			System.out.println("执行完毕");
		}else{
			System.out.println("正在执行");
		}
	}

}