【弄nèng - Activiti6】Activiti6入门篇（八）—— 手动任务与接收任务

手动任务表示不需要任何程序或者流程引擎的驱动会自动执行的任务，当执行流到达该任务时，会自动离开，只是简单的记录相关流程历史。
接受任务总是等待外界的通知，流程才会向下执行。

*后台服务基于Springboot2 + Activiti6，整合文章请参考：https://blog.csdn.net/yy756127197/article/details/101211510 不需要流程设计器就排除3,4步骤 *

1. 手动任务与接受任务

1.1 流程设计

设置
两个节点都添加执行监听器

流程图

流程文件bpmn

<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="receiveTask" name="手动任务和接受任务测试" isExecutable="true">
    <documentation>test1documentation>
    <startEvent id="startEvent1">startEvent>
    <manualTask id="task1" name="手动任务">
      <extensionElements>
        <activiti:executionListener event="start" class="com.it.cloud.activiti.task.delegate.ManualTaskDelegate">activiti:executionListener>
      extensionElements>
    manualTask>
    <receiveTask id="receiveTask1" name="接受任务">
      <extensionElements>
        <activiti:executionListener event="end" class="com.it.cloud.activiti.task.delegate.ReceiveTaskDelegate">activiti:executionListener>
      extensionElements>
    receiveTask>
    <sequenceFlow id="sid-993409E8-F4EE-4930-A861-88ADD748FD43" sourceRef="startEvent1" targetRef="task1">sequenceFlow>
    <sequenceFlow id="sid-DEFED826-A04E-4C60-9011-9016B9D8915F" sourceRef="task1" targetRef="receiveTask1">sequenceFlow>
    <endEvent id="sid-30028C56-D269-49A6-9788-D433FF282D3E">endEvent>
    <sequenceFlow id="sid-ED869DD7-01E0-47B6-8473-DBF6E7C5EC0F" sourceRef="receiveTask1" targetRef="sid-30028C56-D269-49A6-9788-D433FF282D3E">sequenceFlow>
  process>
  <bpmndi:BPMNDiagram id="BPMNDiagram_receiveTask">
    <bpmndi:BPMNPlane bpmnElement="receiveTask" id="BPMNPlane_receiveTask">
      <bpmndi:BPMNShape bpmnElement="startEvent1" id="BPMNShape_startEvent1">
        <omgdc:Bounds height="30.0" width="30.0" x="120.0" y="170.0">omgdc:Bounds>
      bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="task1" id="BPMNShape_task1">
        <omgdc:Bounds height="80.0" width="100.0" x="255.0" y="145.0">omgdc:Bounds>
      bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="receiveTask1" id="BPMNShape_receiveTask1">
        <omgdc:Bounds height="80.0" width="100.0" x="465.0" y="145.0">omgdc:Bounds>
      bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="sid-30028C56-D269-49A6-9788-D433FF282D3E" id="BPMNShape_sid-30028C56-D269-49A6-9788-D433FF282D3E">
        <omgdc:Bounds height="28.0" width="28.0" x="630.0" y="171.0">omgdc:Bounds>
      bpmndi:BPMNShape>
      <bpmndi:BPMNEdge bpmnElement="sid-DEFED826-A04E-4C60-9011-9016B9D8915F" id="BPMNEdge_sid-DEFED826-A04E-4C60-9011-9016B9D8915F">
        <omgdi:waypoint x="355.0" y="185.0">omgdi:waypoint>
        <omgdi:waypoint x="465.0" y="185.0">omgdi:waypoint>
      bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge bpmnElement="sid-993409E8-F4EE-4930-A861-88ADD748FD43" id="BPMNEdge_sid-993409E8-F4EE-4930-A861-88ADD748FD43">
        <omgdi:waypoint x="150.0" y="185.0">omgdi:waypoint>
        <omgdi:waypoint x="255.0" y="185.0">omgdi:waypoint>
      bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge bpmnElement="sid-ED869DD7-01E0-47B6-8473-DBF6E7C5EC0F" id="BPMNEdge_sid-ED869DD7-01E0-47B6-8473-DBF6E7C5EC0F">
        <omgdi:waypoint x="565.0" y="185.0">omgdi:waypoint>
        <omgdi:waypoint x="630.0" y="185.0">omgdi:waypoint>
      bpmndi:BPMNEdge>
    bpmndi:BPMNPlane>
  bpmndi:BPMNDiagram>
definitions>

1.2 定义DeleGate类

配置在流程文件中
ManualTaskDelegate.java

import org.activiti.engine.delegate.DelegateExecution;
import org.activiti.engine.delegate.JavaDelegate;
import java.io.Serializable;

/**
 * @author 司马缸砸缸了
 * @description
 * @date 2019/9/28 16:34
 */

public class ManualTaskDelegate implements JavaDelegate, Serializable {

    @Override
    public void execute(DelegateExecution execution) {
        System.out.println("ManualTaskDelegate 运行开始");
    }
}

ManualTaskDelegate.java

import org.activiti.engine.delegate.DelegateExecution;
import org.activiti.engine.delegate.JavaDelegate;
import java.io.Serializable;

/**
 * @author 司马缸砸缸了
 * @description
 * @date 2019/9/28 16:34
 */

public class ReceiveTaskDelegate implements JavaDelegate, Serializable {

    @Override
    public void execute(DelegateExecution execution) {
        System.out.println("ReceiveTaskDelegate  运行结束");
    }
}

1.2 测试类

ServiceTaskTest.java

import com.it.cloud.modules.activiti.service.IActReModelService;
import org.activiti.engine.HistoryService;
import org.activiti.engine.RepositoryService;
import org.activiti.engine.RuntimeService;
import org.activiti.engine.TaskService;
import org.activiti.engine.repository.Deployment;
import org.activiti.engine.runtime.Execution;
import org.activiti.engine.runtime.ProcessInstance;
import org.activiti.engine.task.Task;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * 手动和接收任务测试
 */
@RunWith(SpringRunner.class)
@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.DEFINED_PORT)
public class ReceiveTaskTest {

    @Autowired
    private IActReModelService actReModelService;

    @Autowired
    private RuntimeService runtimeService;

    @Autowired
    private RepositoryService repositoryService;

    @Autowired
    private TaskService taskService;

    @Autowired
    private HistoryService historyService;

    /**
     * 部署流程定义
     */
    @Test
    public void deploy() {
        Deployment deployment = repositoryService.createDeployment() // 创建部署
                .addClasspathResource("diagrams/receiveTask.bpmn20.xml") // 加载流程资源文件
                .name("serviceTask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());
    }

    /**
     * 启动流程实例
     */
    @Test
    public void start() {
        ProcessInstance pi = runtimeService.startProcessInstanceByKey("receiveTask"); // 流程定义表的KEY字段值
        System.out.println("流程实例ID:" + pi.getId());
        System.out.println("流程定义ID:" + pi.getProcessDefinitionId());
    }

    /**
     * 查看任务
     */
    @Test
    public void queryTask() {
        List<Task> taskList = taskService.createTaskQuery() // 创建任务查询
                .processInstanceBusinessKey("receiveTask")
                .list();

        System.out.println("任务数量:" + taskList.size());
    }

    /**
     * 查看流程
     */
    @Test
    public void queryExecution() {
        Execution execution = runtimeService.createExecutionQuery()
                .processInstanceId("192501")
                .onlyChildExecutions()
                .singleResult();

        System.out.println("执行ID:" + execution.getId());
        System.out.println("执行NAME:" + execution.getName());
    }

    /**
     * 完成任务
     */
    @Test
    public void completeTask() {
        // 触发
        runtimeService.trigger("192502");
    } 
}

1.3 运行

运行deploy()

1.3.1 启动任务

运行start()，流程经过手动任务，到达接收任务

效果：

1.3.2 查询任务

运行queryTask()，手动任务和接收任务是不产生任务的，无法用taskservice查询

效果：

1.3.3 查询执行流

运行queryExecution()

效果：

数据表ACT_RU_EXECUTION

1.3.4 完成任务

运行completeTask()，接收任务通过trigger()触发，向下执行

效果：

---

源码地址

IT-CLOUD-ACTIVITI6
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