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  • 工作流学习之入门demo

      1 /**
      2  * Copyright (C), 2015-2018, XXX有限公司
      3  * FileName: DemoMain
      4  * Author:   happy
      5  * Date:     2018/6/23 16:33
      6  * Description:
      7  * History:
      8  * <author>          <time>          <version>          <desc>
      9  * 作者姓名           修改时间           版本号              描述
     10  */
     11 package com.imooc.activiti.helloworld;
     12 
     13 import com.google.common.collect.Maps;
     14 import org.activiti.engine.*;
     15 import org.activiti.engine.form.FormProperty;
     16 import org.activiti.engine.form.TaskFormData;
     17 import org.activiti.engine.impl.form.DateFormType;
     18 import org.activiti.engine.impl.form.StringFormType;
     19 import org.activiti.engine.repository.Deployment;
     20 import org.activiti.engine.repository.DeploymentBuilder;
     21 import org.activiti.engine.repository.ProcessDefinition;
     22 import org.activiti.engine.runtime.ProcessInstance;
     23 import org.activiti.engine.task.Task;
     24 import org.slf4j.Logger;
     25 import org.slf4j.LoggerFactory;
     26 
     27 import java.text.ParseException;
     28 import java.text.SimpleDateFormat;
     29 import java.util.Date;
     30 import java.util.List;
     31 import java.util.Map;
     32 import java.util.Scanner;
     33 
     34 /**
     35  * 〈一句话功能简述〉<br>
     36  * 〈〉
     37  *
     38  * @author happy
     39  * @create 2018/6/23
     40  * @since 1.0.0
     41  */
     42 public class DemoMain {
     43 
     44     public static final Logger log = LoggerFactory.getLogger(DemoMain.class);
     45 
     46     public static void main(String[] args) {
     47 
     48         log.info("启动我们的程序");
     49 
     50         //创建流程引擎
     51         ProcessEngine processEngine = getProcessEngine();
     52 
     53         //部署流程定义文件
     54         ProcessDefinition processDefinition = getProcessDefinition(processEngine);
     55 
     56         //启动运行流程
     57         final ProcessInstance[] processInstance = {getProcessInstance(processEngine, processDefinition)};
     58 
     59         //处理流程任务
     60         Scanner scanner = new Scanner(System.in);
     61 
     62         while (processInstance[0] != null && !processInstance[0].isEnded()) {
     63 
     64             TaskService taskService = processEngine.getTaskService();
     65             List<Task> taskList = taskService.createTaskQuery().list();
     66             log.info("待处理任务数量 [{}]", taskList.size());
     67             taskList.stream().forEach(task -> {
     68                 log.info("待处理任务 [{}]", task.getName());
     69                 FormService formService = processEngine.getFormService();
     70                 TaskFormData taskFormData = formService.getTaskFormData(task.getId());
     71                 List<FormProperty> formProperties = taskFormData.getFormProperties();
     72                 Map<String, Object> variables = Maps.newHashMap();
     73                 formProperties.stream().forEach(property -> {
     74                     String line = null;
     75                     if (StringFormType.class.isInstance(property.getType())) {
     76                         log.info("请输入 {} ?", property.getName());
     77                         line = scanner.nextLine();
     78                         variables.put(property.getId(), line);
     79                     } else if (DateFormType.class.isInstance(property.getType())) {
     80                         log.info("请输入 {} ? 格式 (yyyy-MM-dd)", property.getName());
     81                         line = scanner.nextLine();
     82                         SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");
     83                         Date date = null;
     84                         try {
     85                             date = dateFormat.parse(line);
     86                         } catch (ParseException e) {
     87                             e.printStackTrace();
     88                         }
     89                         variables.put(property.getId(), date);
     90                     } else {
     91                         log.info("类型暂不支持 {}", property.getType());
     92                     }
     93                     log.info("您输入的内容是 [{}]", line);
     94                 });
     95                 taskService.complete(task.getId(), variables);
     96                     //Variable used in lambda expression should be final or effectively final
    //(解决参考
    https://www.jianshu.com/p/d957dd5560e8) 97 processInstance[0] = processEngine.getRuntimeService().createProcessInstanceQuery(). 98 processInstanceId(processInstance[0].getId()).singleResult(); 99 }); 100 101 } 102 103 log.info("结束我们的程序"); 104 105 } 106 107 private static ProcessInstance getProcessInstance(ProcessEngine processEngine, ProcessDefinition processDefinition) { 108 RuntimeService runtimeService = processEngine.getRuntimeService(); 109 ProcessInstance processInstance = runtimeService.startProcessInstanceById(processDefinition.getId()); 110 log.info("启动流程 {}", processInstance.getProcessDefinitionKey()); 111 return processInstance; 112 } 113 114 private static ProcessDefinition getProcessDefinition(ProcessEngine processEngine) { 115 RepositoryService repositoryService = processEngine.getRepositoryService(); 116 DeploymentBuilder deploymentBuilder = repositoryService.createDeployment(); 117 deploymentBuilder.addClasspathResource("second_approve.bpmn20.xml"); 118 Deployment deployment = deploymentBuilder.deploy(); 119 String deploymentId = deployment.getId(); 120 ProcessDefinition processDefinition = repositoryService.createProcessDefinitionQuery() 121 .deploymentId(deploymentId) 122 .singleResult(); 123 124 log.info("流程定义文件 {},id {}", processDefinition.getName(), processDefinition.getId()); 125 return processDefinition; 126 } 127 128 private static ProcessEngine getProcessEngine() { 129 ProcessEngineConfiguration cfg = ProcessEngineConfiguration.createStandaloneInMemProcessEngineConfiguration(); 130 ProcessEngine processEngine = cfg.buildProcessEngine(); 131 String name = processEngine.getName(); 132 String version = ProcessEngine.VERSION; 133 134 log.info("流程引擎的名称 {},版本号 {}", name, version); 135 return processEngine; 136 } 137 138 }


    <?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="second_approve" name="二级审批流程" isExecutable="true">
        <startEvent id="startEvent" name="开始"></startEvent>
        <userTask id="submitForm" name="填写审批信息">
          <extensionElements>
            <activiti:formProperty id="message" name="申请信息" type="string" required="true"></activiti:formProperty>
            <activiti:formProperty id="name" name="申请人姓名" type="string" required="true"></activiti:formProperty>
            <activiti:formProperty id="submitTime" name="提交时间" type="date" datePattern="yyyy-MM-dd" required="true"></activiti:formProperty>
            <activiti:formProperty id="submitType" name="确认申请" type="string" required="true"></activiti:formProperty>
          </extensionElements>
        </userTask>
        <sequenceFlow id="flow1" sourceRef="startEvent" targetRef="submitForm"></sequenceFlow>
        <exclusiveGateway id="decideSubmit" name="提交or取消"></exclusiveGateway>
        <sequenceFlow id="flow2" sourceRef="submitForm" targetRef="decideSubmit"></sequenceFlow>
        <endEvent id="endEventCancle" name="结束"></endEvent>
        <sequenceFlow id="flow3" sourceRef="decideSubmit" targetRef="endEventCancle">
          <conditionExpression xsi:type="tFormalExpression"><![CDATA[${submitType=="N" || submitType=="n"}]]></conditionExpression>
        </sequenceFlow>
        <userTask id="tlApprove" name="主管审批">
          <extensionElements>
            <activiti:formProperty id="tlApprove" name="主管审批结果" type="string" required="true"></activiti:formProperty>
            <activiti:formProperty id="tlMessage" name="主管备注" type="string" required="true"></activiti:formProperty>
          </extensionElements>
        </userTask>
        <sequenceFlow id="flow4" sourceRef="decideSubmit" targetRef="tlApprove">
          <conditionExpression xsi:type="tFormalExpression"><![CDATA[${submitType=="Y" || submitType=="y"}]]></conditionExpression>
        </sequenceFlow>
        <exclusiveGateway id="decideTlApprove" name="主管审批校验"></exclusiveGateway>
        <sequenceFlow id="flow5" sourceRef="tlApprove" targetRef="decideTlApprove"></sequenceFlow>
        <userTask id="hr_approve" name="人事审批">
          <extensionElements>
            <activiti:formProperty id="hrApprove" name="人事审批结果" type="string" required="true"></activiti:formProperty>
            <activiti:formProperty id="hrMessage" name="人事审批备注" type="string" required="true"></activiti:formProperty>
          </extensionElements>
        </userTask>
        <sequenceFlow id="flow6" sourceRef="decideTlApprove" targetRef="hr_approve">
          <conditionExpression xsi:type="tFormalExpression"><![CDATA[${tlApprove=="Y" || tlApprove=="y"}]]></conditionExpression>
        </sequenceFlow>
        <sequenceFlow id="flow10" sourceRef="decideTlApprove" targetRef="submitForm">
          <conditionExpression xsi:type="tFormalExpression"><![CDATA[${tlApprove=="N" || tlApprove=="n"}]]></conditionExpression>
        </sequenceFlow>
        <exclusiveGateway id="decideHrApprove" name="人事审批校验"></exclusiveGateway>
        <sequenceFlow id="flow11" sourceRef="hr_approve" targetRef="decideHrApprove"></sequenceFlow>
        <endEvent id="endEvent" name="结束"></endEvent>
        <sequenceFlow id="flow12" sourceRef="decideHrApprove" targetRef="endEvent">
          <conditionExpression xsi:type="tFormalExpression"><![CDATA[${hrApprove=="Y" ||hrApprove=="y"}]]></conditionExpression>
        </sequenceFlow>
        <sequenceFlow id="flow13" sourceRef="decideHrApprove" targetRef="submitForm">
          <conditionExpression xsi:type="tFormalExpression"><![CDATA[${hrApprove=="N" ||hrApprove=="n"}]]></conditionExpression>
        </sequenceFlow>
      </process>
      <bpmndi:BPMNDiagram id="BPMNDiagram_second_approve">
        <bpmndi:BPMNPlane bpmnElement="second_approve" id="BPMNPlane_second_approve">
          <bpmndi:BPMNShape bpmnElement="startEvent" id="BPMNShape_startEvent">
            <omgdc:Bounds height="35.0" width="35.0" x="50.0" y="130.0"></omgdc:Bounds>
          </bpmndi:BPMNShape>
          <bpmndi:BPMNShape bpmnElement="submitForm" id="BPMNShape_submitForm">
            <omgdc:Bounds height="55.0" width="105.0" x="130.0" y="120.0"></omgdc:Bounds>
          </bpmndi:BPMNShape>
          <bpmndi:BPMNShape bpmnElement="decideSubmit" id="BPMNShape_decideSubmit">
            <omgdc:Bounds height="40.0" width="40.0" x="280.0" y="128.0"></omgdc:Bounds>
          </bpmndi:BPMNShape>
          <bpmndi:BPMNShape bpmnElement="endEventCancle" id="BPMNShape_endEventCancle">
            <omgdc:Bounds height="35.0" width="35.0" x="400.0" y="230.0"></omgdc:Bounds>
          </bpmndi:BPMNShape>
          <bpmndi:BPMNShape bpmnElement="tlApprove" id="BPMNShape_tlApprove">
            <omgdc:Bounds height="55.0" width="105.0" x="365.0" y="121.0"></omgdc:Bounds>
          </bpmndi:BPMNShape>
          <bpmndi:BPMNShape bpmnElement="decideTlApprove" id="BPMNShape_decideTlApprove">
            <omgdc:Bounds height="40.0" width="40.0" x="515.0" y="129.0"></omgdc:Bounds>
          </bpmndi:BPMNShape>
          <bpmndi:BPMNShape bpmnElement="hr_approve" id="BPMNShape_hr_approve">
            <omgdc:Bounds height="55.0" width="105.0" x="601.0" y="123.0"></omgdc:Bounds>
          </bpmndi:BPMNShape>
          <bpmndi:BPMNShape bpmnElement="decideHrApprove" id="BPMNShape_decideHrApprove">
            <omgdc:Bounds height="40.0" width="40.0" x="751.0" y="131.0"></omgdc:Bounds>
          </bpmndi:BPMNShape>
          <bpmndi:BPMNShape bpmnElement="endEvent" id="BPMNShape_endEvent">
            <omgdc:Bounds height="35.0" width="35.0" x="836.0" y="134.0"></omgdc:Bounds>
          </bpmndi:BPMNShape>
          <bpmndi:BPMNEdge bpmnElement="flow1" id="BPMNEdge_flow1">
            <omgdi:waypoint x="85.0" y="147.0"></omgdi:waypoint>
            <omgdi:waypoint x="130.0" y="147.0"></omgdi:waypoint>
          </bpmndi:BPMNEdge>
          <bpmndi:BPMNEdge bpmnElement="flow2" id="BPMNEdge_flow2">
            <omgdi:waypoint x="235.0" y="147.0"></omgdi:waypoint>
            <omgdi:waypoint x="280.0" y="148.0"></omgdi:waypoint>
          </bpmndi:BPMNEdge>
          <bpmndi:BPMNEdge bpmnElement="flow3" id="BPMNEdge_flow3">
            <omgdi:waypoint x="300.0" y="168.0"></omgdi:waypoint>
            <omgdi:waypoint x="299.0" y="247.0"></omgdi:waypoint>
            <omgdi:waypoint x="400.0" y="247.0"></omgdi:waypoint>
          </bpmndi:BPMNEdge>
          <bpmndi:BPMNEdge bpmnElement="flow4" id="BPMNEdge_flow4">
            <omgdi:waypoint x="320.0" y="148.0"></omgdi:waypoint>
            <omgdi:waypoint x="365.0" y="148.0"></omgdi:waypoint>
          </bpmndi:BPMNEdge>
          <bpmndi:BPMNEdge bpmnElement="flow5" id="BPMNEdge_flow5">
            <omgdi:waypoint x="470.0" y="148.0"></omgdi:waypoint>
            <omgdi:waypoint x="515.0" y="149.0"></omgdi:waypoint>
          </bpmndi:BPMNEdge>
          <bpmndi:BPMNEdge bpmnElement="flow6" id="BPMNEdge_flow6">
            <omgdi:waypoint x="555.0" y="149.0"></omgdi:waypoint>
            <omgdi:waypoint x="601.0" y="150.0"></omgdi:waypoint>
          </bpmndi:BPMNEdge>
          <bpmndi:BPMNEdge bpmnElement="flow10" id="BPMNEdge_flow10">
            <omgdi:waypoint x="535.0" y="169.0"></omgdi:waypoint>
            <omgdi:waypoint x="535.0" y="296.0"></omgdi:waypoint>
            <omgdi:waypoint x="182.0" y="296.0"></omgdi:waypoint>
            <omgdi:waypoint x="182.0" y="175.0"></omgdi:waypoint>
          </bpmndi:BPMNEdge>
          <bpmndi:BPMNEdge bpmnElement="flow11" id="BPMNEdge_flow11">
            <omgdi:waypoint x="706.0" y="150.0"></omgdi:waypoint>
            <omgdi:waypoint x="751.0" y="151.0"></omgdi:waypoint>
          </bpmndi:BPMNEdge>
          <bpmndi:BPMNEdge bpmnElement="flow12" id="BPMNEdge_flow12">
            <omgdi:waypoint x="791.0" y="151.0"></omgdi:waypoint>
            <omgdi:waypoint x="836.0" y="151.0"></omgdi:waypoint>
          </bpmndi:BPMNEdge>
          <bpmndi:BPMNEdge bpmnElement="flow13" id="BPMNEdge_flow13">
            <omgdi:waypoint x="771.0" y="131.0"></omgdi:waypoint>
            <omgdi:waypoint x="770.0" y="50.0"></omgdi:waypoint>
            <omgdi:waypoint x="182.0" y="50.0"></omgdi:waypoint>
            <omgdi:waypoint x="182.0" y="120.0"></omgdi:waypoint>
          </bpmndi:BPMNEdge>
        </bpmndi:BPMNPlane>
      </bpmndi:BPMNDiagram>
    </definitions>
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  • 原文地址:https://www.cnblogs.com/java-le/p/9219191.html
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