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Activiti7工作流引擎：实战篇(一) 准备工作_工作流引擎实战

作者：我家自动化 | 2024-05-30 00:51:09

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工作流引擎实战

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本来我是想买块肉的，但是现在我只能买块豆腐。

请添加图片描述

1. pom.xml

引入最新版本 activiti-spring-boot-starter依赖和spring-boot-starter-security。

<dependency>
    <groupId>org.activiti</groupId>
    <artifactId>activiti-spring-boot-starter</artifactId>
    <version>7.1.0.M6</version>
</dependency>
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-security</artifactId>
    <version>2.2.0.RELEASE</version>
</dependency>
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
    <groupId>org.mybatis.spring.boot</groupId>
    <artifactId>mybatis-spring-boot-starter</artifactId>
    <version>2.2.0</version>
</dependency>

<dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
    <scope>runtime</scope>
</dependency>
<dependency>
    <groupId>org.projectlombok</groupId>
    <artifactId>lombok</artifactId>
    <optional>true</optional>
</dependency>
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-test</artifactId>
    <scope>test</scope>
</dependency>

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2. application.yml

spring:
  datasource:
    url: jdbc:mysql://localhost:3306/activiti?useUnicode=true&characterEncoding=utf8&serverTimezone=GMT
    username: root
    password: root123
    driver-class-name: com.mysql.cj.jdbc.Driver
  activiti:
    #1.flase： 默认值。activiti在启动时，会对比数据库表中保存的版本，如果没有表或者版本不匹配，将抛出异常
    #2.true： activiti会对数据库中所有表进行更新操作。如果表不存在，则自动创建
    #3.create_drop： 在activiti启动时创建表，在关闭时删除表（必须手动关闭引擎，才能删除表）
    #4.drop-create： 在activiti启动时删除原来的旧表，然后在创建新表（不需要手动关闭引擎）
    database-schema-update: true
    #检测历史表是否存在 activiti7默认没有开启数据库历史记录 启动数据库历史记录
    db-history-used: true
    #记录历史等级 可配置的历史级别有none, activity, audit, full
    history-level: full
    #校验流程文件，默认校验resources下的processes文件夹里的流程文件
    check-process-definitions: false

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3. database

-- 用户表，用于登录和Spring Security集成, 密码: 123456
CREATE TABLE `tb_user` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `age` int(40) DEFAULT NULL,
  `username` varchar(100) DEFAULT NULL,
  `password` varchar(100) DEFAULT NULL,
  `email` varchar(100) DEFAULT NULL,
  `gender` int(40) DEFAULT NULL,
  `role` varchar(100) DEFAULT NULL,
  `rolegroup` varchar(100) DEFAULT NULL,
  PRIMARY KEY (`id`) USING BTREE
) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8 ROW_FORMAT=COMPACT;

INSERT INTO `tb_user` VALUES (1, 20, 'jack', '$2a$10$9FIX76XUZgIyiOTjy5iswe9fJrWuaxAwTLsJb0QFJAcu5OqTb/TJS', '123@123.com', 1, 'ADMIN', 'activiti_user');
INSERT INTO `tb_user` VALUES (2, 25, 'rose', '$2a$10$9FIX76XUZgIyiOTjy5iswe9fJrWuaxAwTLsJb0QFJAcu5OqTb/TJS', '234@234.com', 2, 'ADMIN', 'activiti_user');
INSERT INTO `tb_user` VALUES (3, 22, 'tom', '$2a$10$9FIX76XUZgIyiOTjy5iswe9fJrWuaxAwTLsJb0QFJAcu5OqTb/TJS', '345@35.com', 1, 'ADMIN', 'activiti_user');
INSERT INTO `tb_user` VALUES (4, 30, 'jerry', '$2a$10$9FIX76XUZgIyiOTjy5iswe9fJrWuaxAwTLsJb0QFJAcu5OqTb/TJS', '456@456.com', 2, 'ADMIN', 'activiti_user');

-- 出差表：保存业务相关数据
CREATE TABLE `tb_evection` (
  `id` int(10) NOT NULL AUTO_INCREMENT,
  `evectionName` varchar(100) DEFAULT NULL,
  `num` double DEFAULT NULL,
  `destination` varchar(100) DEFAULT NULL,
  `begindate` date DEFAULT NULL,
  `enddate` date DEFAULT NULL,
  `reson` varchar(100) DEFAULT NULL,
  `state` int(4) DEFAULT NULL,
  `userid` int(20) DEFAULT NULL,
  PRIMARY KEY (`id`) USING BTREE
) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8 ROW_FORMAT=COMPACT;

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4. entity

需要实现SpringSecurity中的UserDetails接口。

@Data
public class User implements Serializable, UserDetails {
    private Long id;
    private String username;
    private String password;
    private String email;
    private Integer gender;
    private Integer age;
    private String role;

    @Override
    public Collection<? extends GrantedAuthority> getAuthorities() {
        return null;
    }

    @Override
    public String getPassword() {
        return password;
    }

    @Override
    public String getUsername() {
        return username;
    }

    @Override
    public boolean isAccountNonExpired() {
        return false;
    }

    @Override
    public boolean isAccountNonLocked() {
        return false;
    }

    @Override
    public boolean isCredentialsNonExpired() {
        return false;
    }

    @Override
    public boolean isEnabled() {
        return false;
    }
}

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/**
 * 出差申请
 */
@Data
public class Evection implements Serializable {

    private Long id;

    private Long userid;
    /** 出差申请单名称 */
    private String evectionName;
    /** 出差天数 */
    private Double num;
    /** 预计开始时间 */
    private Date beginDate;
    /** 预计结束时间 */
    private Date endDate;
    /** 目的地 */
    private String destination;
    /** 出差事由 */
    private String reson;
    /** 0-初始录入，1-开始审批，2-审批完成 */
    private int state;
}

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@Data
@AllArgsConstructor
@NoArgsConstructor
public class Result {
    private Integer status;
    private String message;
}

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5. bpmn

在这里插入图片描述
evection.bpmn

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<definitions xmlns="http://www.omg.org/spec/BPMN/20100524/MODEL" 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" xmlns:tns="http://www.activiti.org/test" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" expressionLanguage="http://www.w3.org/1999/XPath" id="m1585999805036" name="" targetNamespace="http://www.activiti.org/test" typeLanguage="http://www.w3.org/2001/XMLSchema">
  <process id="evection" isClosed="false" isExecutable="true" name="出差申请" processType="None">
    <startEvent id="_2" name="StartEvent"/>
    <userTask activiti:assignee="${assignee0}" activiti:exclusive="true" id="_3" name="创建出差申请">
      <extensionElements>
        <activiti:taskListener class="com.itheima.listener.MyTaskListener" event="assignment"/>
      </extensionElements>
    </userTask>
    <userTask activiti:assignee="${assignee1}" activiti:exclusive="true" id="_4" name="部门经理审核">
      <extensionElements>
        <activiti:taskListener class="com.itheima.listener.MyTaskListener" event="assignment"/>
      </extensionElements>
    </userTask>
    <userTask activiti:assignee="${assignee2}" activiti:exclusive="true" id="_5" name="总经理审批">
      <extensionElements>
        <activiti:taskListener class="com.itheima.listener.MyTaskListener" event="assignment"/>
      </extensionElements>
    </userTask>
    <userTask activiti:assignee="${assignee3}" activiti:exclusive="true" id="_6" name="财务审批">
      <extensionElements>
        <activiti:taskListener class="com.itheima.listener.MyTaskListener" event="assignment"/>
      </extensionElements>
    </userTask>
    <endEvent id="_7" name="EndEvent">
      <extensionElements>
        <activiti:executionListener class="com.itheima.listener.MyExecutionListener" event="end"/>
      </extensionElements>
    </endEvent>
    <sequenceFlow id="_8" sourceRef="_2" targetRef="_3"/>
    <sequenceFlow id="_9" sourceRef="_3" targetRef="_4"/>
    <sequenceFlow id="_10" sourceRef="_4" targetRef="_6">
      <conditionExpression xsi:type="tFormalExpression">
        <![CDATA[${evection.num<3}]]>
      </conditionExpression>
    </sequenceFlow>
    <sequenceFlow id="_11" sourceRef="_4" targetRef="_5">
      <conditionExpression xsi:type="tFormalExpression">
        <![CDATA[${evection.num>=3}]]>
      </conditionExpression>
    </sequenceFlow>
    <sequenceFlow id="_12" sourceRef="_5" targetRef="_6"/>
    <sequenceFlow id="_13" sourceRef="_6" targetRef="_7"/>
  </process>
  <bpmndi:BPMNDiagram documentation="background=#FFFFFF;count=1;horizontalcount=1;orientation=0;width=842.4;height=1195.2;imageableWidth=832.4;imageableHeight=1185.2;imageableX=5.0;imageableY=5.0" id="Diagram-_1" name="New Diagram">
    <bpmndi:BPMNPlane bpmnElement="evection">
      <bpmndi:BPMNShape bpmnElement="_2" id="Shape-_2">
        <omgdc:Bounds height="32.0" width="32.0" x="5.0" y="160.0"/>
        <bpmndi:BPMNLabel>
          <omgdc:Bounds height="32.0" width="32.0" x="0.0" y="0.0"/>
        </bpmndi:BPMNLabel>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="_3" id="Shape-_3">
        <omgdc:Bounds height="55.0" width="85.0" x="100.0" y="150.0"/>
        <bpmndi:BPMNLabel>
          <omgdc:Bounds height="55.0" width="85.0" x="0.0" y="0.0"/>
        </bpmndi:BPMNLabel>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="_4" id="Shape-_4">
        <omgdc:Bounds height="55.0" width="85.0" x="265.0" y="150.0"/>
        <bpmndi:BPMNLabel>
          <omgdc:Bounds height="55.0" width="85.0" x="0.0" y="0.0"/>
        </bpmndi:BPMNLabel>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="_5" id="Shape-_5">
        <omgdc:Bounds height="55.0" width="85.0" x="480.0" y="115.0"/>
        <bpmndi:BPMNLabel>
          <omgdc:Bounds height="55.0" width="85.0" x="0.0" y="0.0"/>
        </bpmndi:BPMNLabel>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="_6" id="Shape-_6">
        <omgdc:Bounds height="55.0" width="85.0" x="485.0" y="260.0"/>
        <bpmndi:BPMNLabel>
          <omgdc:Bounds height="55.0" width="85.0" x="0.0" y="0.0"/>
        </bpmndi:BPMNLabel>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="_7" id="Shape-_7">
        <omgdc:Bounds height="32.0" width="32.0" x="655.0" y="265.0"/>
        <bpmndi:BPMNLabel>
          <omgdc:Bounds height="32.0" width="32.0" x="0.0" y="0.0"/>
        </bpmndi:BPMNLabel>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNEdge bpmnElement="_13" id="BPMNEdge__13" sourceElement="_6" targetElement="_7">
        <omgdi:waypoint x="570.0" y="287.5"/>
        <omgdi:waypoint x="655.0" y="281.0"/>
        <bpmndi:BPMNLabel>
          <omgdc:Bounds height="0.0" width="0.0" x="0.0" y="0.0"/>
        </bpmndi:BPMNLabel>
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge bpmnElement="_12" id="BPMNEdge__12" sourceElement="_5" targetElement="_6">
        <omgdi:waypoint x="525.0" y="170.0"/>
        <omgdi:waypoint x="525.0" y="260.0"/>
        <bpmndi:BPMNLabel>
          <omgdc:Bounds height="0.0" width="0.0" x="0.0" y="0.0"/>
        </bpmndi:BPMNLabel>
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge bpmnElement="_8" id="BPMNEdge__8" sourceElement="_2" targetElement="_3">
        <omgdi:waypoint x="37.0" y="176.0"/>
        <omgdi:waypoint x="100.0" y="177.5"/>
        <bpmndi:BPMNLabel>
          <omgdc:Bounds height="0.0" width="0.0" x="0.0" y="0.0"/>
        </bpmndi:BPMNLabel>
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge bpmnElement="_9" id="BPMNEdge__9" sourceElement="_3" targetElement="_4">
        <omgdi:waypoint x="185.0" y="177.5"/>
        <omgdi:waypoint x="265.0" y="177.5"/>
        <bpmndi:BPMNLabel>
          <omgdc:Bounds height="0.0" width="0.0" x="0.0" y="0.0"/>
        </bpmndi:BPMNLabel>
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge bpmnElement="_11" id="BPMNEdge__11" sourceElement="_4" targetElement="_5">
        <omgdi:waypoint x="350.0" y="177.5"/>
        <omgdi:waypoint x="480.0" y="142.5"/>
        <bpmndi:BPMNLabel>
          <omgdc:Bounds height="0.0" width="0.0" x="0.0" y="0.0"/>
        </bpmndi:BPMNLabel>
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge bpmnElement="_10" id="BPMNEdge__10" sourceElement="_4" targetElement="_6">
        <omgdi:waypoint x="350.0" y="177.5"/>
        <omgdi:waypoint x="485.0" y="287.5"/>
        <bpmndi:BPMNLabel>
          <omgdc:Bounds height="0.0" width="0.0" x="0.0" y="0.0"/>
        </bpmndi:BPMNLabel>
      </bpmndi:BPMNEdge>
    </bpmndi:BPMNPlane>
  </bpmndi:BPMNDiagram>
</definitions>


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6. main

配置Mapper扫描包。

@SpringBootApplication
@MapperScan("com.example.demo.mapper")
public class SpringbootActivitiApplication {

    public static void main(String[] args) {
        SpringApplication.run(SpringbootActivitiApplication.class, args);
    }
}

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知识传送门 》》》》》》》》》》》》》》》》》》》

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