Activiti创建流程引擎(23张表)

Activiti创建流程引擎(23张表)

引入activiti依赖

 <dependency>
      <groupId>org.activiti</groupId>
      <artifactId>activiti-spring</artifactId>
      <version>5.18.0</version>
    </dependency>

    <dependency>
      <groupId>org.activiti</groupId>
      <artifactId>activiti-engine</artifactId>
      <version>5.18.0</version>
      <exclusions>
        <exclusion>
          <artifactId>slf4j-api</artifactId>
          <groupId>org.slf4j</groupId>
        </exclusion>
        <exclusion>
          <artifactId>spring-beans</artifactId>
          <groupId>org.springframework</groupId>
        </exclusion>
        <exclusion>
          <artifactId>jackson-core-asl</artifactId>
          <groupId>org.codehaus.jackson</groupId>
        </exclusion>
        <exclusion>
          <artifactId>commons-lang3</artifactId>
          <groupId>org.apache.commons</groupId>
        </exclusion>
        <exclusion>
          <artifactId>commons-lang3</artifactId>
          <groupId>org.apache.commons</groupId>
        </exclusion>
      </exclusions>
    </dependency>

创建activiticfg.xml

<?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">

    <bean id="processEngineConfiguration" class="org.activiti.engine.impl.cfg.StandaloneProcessEngineConfiguration">
        <property name="jdbcDriver" value="com.mysql.jdbc.Driver"></property>
        <property name="jdbcUrl" value="jdbc:mysql://localhost:3306/test?useUnicode=true&amp;characterEncoding=UTF-8"></property>
        <property name="jdbcUsername" value="root"></property>
        <property name="jdbcPassword" value="123456"></property>
        <property name="databaseSchemaUpdate" value="true"></property>
    </bean>
</beans>

工具类

package com.liu.util;

import org.activiti.engine.*;
import org.activiti.engine.repository.DeploymentBuilder;
import org.activiti.engine.task.Task;
import org.junit.Test;

import java.util.List;

/**
 * Created by Administrator on 2020-02-08.
 */
public class ActivitiUtil {

    /**
     * 会默认按照Resources目录下的activiti.cfg.xml创建流程引擎
     */
    ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();

    public void test() { //以下两种方式选择一种创建引擎方式：1.配置写在程序里 2.读对应的配置文件
        //1
        testCreateProcessEngine();
        //2
        testCreateProcessEngineByCfgXml();
        deployProcess();
        startProcess();
        queryTask();
//handleTask();
    }

    /**
     * 测试activiti环境
     */
    @Test
    public void testCreateProcessEngine() {
        ProcessEngineConfiguration cfg = ProcessEngineConfiguration.createStandaloneProcessEngineConfiguration();
        cfg.setJdbcDriver("com.mysql.jdbc.Driver");
        cfg.setJdbcUrl("jdbc:mysql://127.0.0.1:3306/test");
        cfg.setJdbcUsername("root");
        cfg.setJdbcPassword("123456"); //配置建表策略
        cfg.setDatabaseSchemaUpdate(ProcessEngineConfiguration.DB_SCHEMA_UPDATE_TRUE);
        ProcessEngine engine = cfg.buildProcessEngine();
    }

    /**
     * 根据配置文件activiticfg.xml创建ProcessEngine
     */
    @Test
    public void testCreateProcessEngineByCfgXml() {
        ProcessEngineConfiguration cfg = ProcessEngineConfiguration.createProcessEngineConfigurationFromResource("activiti/activiticfg.xml");
        ProcessEngine engine = cfg.buildProcessEngine();
    }

    /**
     * 发布流程
     * RepositoryService
     */
    @Test
    public void deployProcess() {
        RepositoryService repositoryService = processEngine.getRepositoryService();
        DeploymentBuilder builder = repositoryService.createDeployment();
        builder.addClasspathResource("hello.bpmn");
        builder.deploy();
    }

    /**
     * 启动流程
     * <p>
     * RuntimeService
     */
    @Test
    public void startProcess() {
        RuntimeService runtimeService = processEngine.getRuntimeService();
//可根据id、key、message启动流程
        runtimeService.startProcessInstanceByKey("myProcess_1");
    }

    /**
     * 查看任务
     * TaskService
     */
    @Test
    public void queryTask() {
        TaskService taskService = processEngine.getTaskService(); //根据assignee(代理人)查询任务
        String assignee = "emp";
        List<Task> tasks = taskService.createTaskQuery().taskAssignee(assignee).list();
        int size = tasks.size();
        for (int i = 0; i < size; i++) {
            Task task = tasks.get(i);
        }
        for (Task task : tasks) {
            System.out.println("taskId:" + task.getId() + ",taskName:" + task.getName() + ",assignee:" + task.getAssignee() + ",createTime:" + task.getCreateTime());
        }
    }

    /**
     * 办理任务
     */
    @Test
    public void handleTask() {
        TaskService taskService = processEngine.getTaskService(); //根据上一步生成的taskId执行任务
        String taskId = "2504";
        taskService.complete(taskId);
    }

}

执行testCreateProcessEngineByCfgXml（）测试方法
执行结果

来源：CSDN

作者：桀骜浮沉

链接：https://blog.csdn.net/weixin_45742032/article/details/104219875