activiti基本使用

1、安装activiti插件

进入idea设置
点击Plugins
找到Install plugin from disk选中本地插件jar包（actibpm.jar）
重启idea

新建文件有bpmn的文件选项则安装成功

2、导依赖

 <properties>
     <slf4j.version>1.7.2</slf4j.version>
     <log4j.version>1.2.17</log4j.version>
 </properties>
<!-- activiti start -->
<dependency>
    <groupId>org.activiti</groupId>
    <artifactId>activiti-bpmn-converter</artifactId>
    <version>5.21.0</version>
</dependency>
<dependency>
    <groupId>org.activiti</groupId>
    <artifactId>activiti-engine</artifactId>
    <version>5.21.0</version>
</dependency>
<dependency>
    <groupId>org.activiti</groupId>
    <artifactId>activiti-image-generator</artifactId>
    <version>5.21.0</version>
</dependency>
<dependency>
    <groupId>org.activiti</groupId>
    <artifactId>activiti-process-validation</artifactId>
    <version>5.21.0</version>
</dependency>
<dependency>
    <groupId>org.activiti</groupId>
    <artifactId>activiti-spring</artifactId>
    <version>5.21.0</version>
    <exclusions>
        <exclusion>
            <artifactId>commons-dbcp</artifactId>
            <groupId>commons-dbcp</groupId>
        </exclusion>
    </exclusions>
</dependency>
<dependency>
    <groupId>org.activiti</groupId>
    <artifactId>activiti-diagram-rest</artifactId>
    <version>5.21.0</version>
</dependency>
<dependency>
    <groupId>org.activiti</groupId>
    <artifactId>activiti-json-converter</artifactId>
    <version>5.21.0</version>
    <exclusions>
        <exclusion>
            <artifactId>commons-collections</artifactId>
            <groupId>commons-collections</groupId>
        </exclusion>
    </exclusions>
</dependency>
<!-- LOGGING begin -->
<dependency>
    <groupId>org.slf4j</groupId>
    <artifactId>slf4j-api</artifactId>
    <version>${slf4j.version}</version>
</dependency>
<dependency>
    <groupId>org.slf4j</groupId>
    <artifactId>slf4j-log4j12</artifactId>
    <version>${slf4j.version}</version>
</dependency>
<dependency>
    <groupId>org.slf4j</groupId>
    <artifactId>jcl-over-slf4j</artifactId>
    <version>${slf4j.version}</version>
</dependency>
<dependency>
    <groupId>log4j</groupId>
    <artifactId>log4j</artifactId>
    <version>${log4j.version}</version>
</dependency>
<!-- LOGGING end -->

<dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
    <version>8.0.11</version>
</dependency>

3、在resources资源目录下创建bpmn文件

4、新建activiti.cfg.xml配置文件

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans.xsd">
    <!-- 流程引擎配置的bean -->
    <bean id="processEngineConfiguration" class="org.activiti.engine.impl.cfg.StandaloneProcessEngineConfiguration">
        <property name="jdbcUrl" value="jdbc:mysql://localhost:3306/activiti?characterEncoding=utf8&amp;serverTimezone=GMT%2B8"/>
        <property name="jdbcDriver" value="com.mysql.cj.jdbc.Driver"/>
        <property name="jdbcUsername" value="root"/>
        <property name="jdbcPassword" value="123456"/>
        <!--关闭Deployment时删除表，第一次部署流程文件时开启，部署完毕后关闭-->
        <property name="databaseSchemaUpdate" value="create-drop"/>
    </bean>
</beans>e

5、导入log4j配置文件

# Global logging configuration
log4j.rootLogger=ERROR, stdout

# MyBatis logging configuration...
log4j.logger.com.gec.bookinfo.dao.BookInfoDao=DEBUG

# Console output...
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%5p [%t] - %m%n

6、测试

package com.yl;

import org.activiti.engine.*;
import org.activiti.engine.repository.Deployment;
import org.activiti.engine.runtime.ProcessInstance;
import org.activiti.engine.task.Task;
import org.junit.Test;

public class ActivitiTest {
    //创建工作流引擎
    ProcessEngine processEngine= ProcessEngines.getDefaultProcessEngine();
    //管理流程文件的对象
    RepositoryService repositoryService=processEngine.getRepositoryService();
    //管理流程实例的对象
    RuntimeService runtimeService=processEngine.getRuntimeService();
    //管理任务节点的对象
    TaskService taskService=processEngine.getTaskService();

    /**
     * 部署流程文件
     */
    @Test
    public void deployment() {
        //部署bpmn文件到数据库表
        Deployment deployment=repositoryService.createDeployment().addClasspathResource("hello.bpmn").deploy();

        System.out.println("部署文件id="+deployment.getId());
    }

    /**
     * 删除流程文件
     */
    @Test
    public void delete(){
        repositoryService.deleteDeployment("1");
    }

    /**
     * 启动流程实例
     */
    @Test
    public void start(){
        ProcessInstance processInstance=runtimeService.startProcessInstanceByKey("myProcess_1");

        System.out.println("流程实例id="+processInstance.getId());
    }

    /**
     * 获取当前任务节点对象及完成此任务节点
     */
    @Test
    public void complete(){
        //获取当前流程实例id=2501的当前任务节点对象
        Task task= taskService.createTaskQuery().processInstanceId("2501").singleResult();

        System.out.println(task.getName());

        //完成此任务节点
        taskService.complete(task.getId());
    }

    /**
     * 判断流程实例是否结束
     */
    @Test
    public void endOrNot(){
        //获取当前流程实例id=2501的当前任务节点对象
        Task task= taskService.createTaskQuery().processInstanceId("2501").singleResult();

        if (task==null){
            System.out.println("当前实例已经结束");
        }else {
            System.out.println("当前实例还没有结束");
        }
    }

    
}

记得快乐