eclipse-java-activiti工作流-极简例子

作者: 徐如是 | 来源:发表于2018-11-15 14:08 被阅读0次

那么多博客，我总觉都得没说好如何快速在eclipse搭建跑起来。
一、安装插件：
1：Help-》Install New Sofeware-》add
Name:Activiti Designer
Location:http://activiti.org/designer/update/
如图：

image.png

然后安装

image.png

重启eclipse。。。

二、搭建工作流：
1、提供一个mysql
2、新建MAVEN工程：

image.png

3、添加resource文件夹：

image.png

image.png
4、pom.xml引入依赖

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.open</groupId>
  <artifactId>activiti-demo01</artifactId>
  <version>1.0-SNAPSHOT</version>
  <packaging>jar</packaging>
  <name>activiti-demo01</name>
  <properties>
    <activiti-version>5.18.0</activiti-version>
  </properties>
  <dependencies>
    <dependency>
      <groupId>org.activiti</groupId>
      <artifactId>activiti-engine</artifactId>
      <version>${activiti-version}</version>
    </dependency>
    <dependency>
      <groupId>org.activiti</groupId>
      <artifactId>activiti-spring</artifactId>
      <version>${activiti-version}</version>
    </dependency>
    <dependency>
      <groupId>org.codehaus.groovy</groupId>
      <artifactId>groovy-all</artifactId>
      <version>2.4.3</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->
<dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
    <version>8.0.13</version>
</dependency>
    
    <dependency>
      <groupId>com.h2database</groupId>
      <artifactId>h2</artifactId>
      <version>1.3.168</version>
    </dependency>
    <dependency>
      <groupId>org.slf4j</groupId>
      <artifactId>slf4j-api</artifactId>
      <version>1.7.6</version>
    </dependency>
    <dependency>
      <groupId>org.slf4j</groupId>
      <artifactId>slf4j-jdk14</artifactId>
      <version>1.7.6</version>
    </dependency>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.10</version>
    </dependency>
  </dependencies>
     <build>
    <plugins>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-compiler-plugin</artifactId>
           <version>2.3.2</version>
        <configuration>
             <source>1.6</source>
             <target>1.6</target>
           </configuration>
         </plugin>
         <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-eclipse-plugin</artifactId>
        <inherited>true</inherited>
        <configuration>
             <classpathContainers>
               <classpathContainer>org.eclipse.jdt.USER_LIBRARY/Activiti Designer Extensions</classpathContainer>
             </classpathContainers>
           </configuration>
         </plugin>
    </plugins>
     </build>
</project>

4、在resource下面，添加active-digrams

image.png

5、画图

直接导出.gif

然后
6、在resource下面编写配置文件activiti.cfg.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"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:tx="http://www.springframework.org/schema/tx"
    xmlns:jee="http://www.springframework.org/schema/jee"
    xmlns:aop="http://www.springframework.org/schema/aop"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
       http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
       http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
       http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-3.0.xsd
       http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.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/voj?useUnicode=true&amp;characterEncoding=utf8"></property>
        <property name="jdbcUsername" value="root"></property>
        <property name="jdbcPassword" value="root"></property>
        <!-- 没有表创建表 -->
        <property name="databaseSchemaUpdate" value="true"></property>
    </bean>

</beans>

7、java代码测试

package com.open.activeti_demo01;

import java.util.List;

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

/**
 * Hello world!
 *
 */
public class App 
{
    ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();
    /**
     * 部署流程定义
     */
    @Test
    public void deployment() {
        Deployment deployment = processEngine.getRepositoryService()//与流程定义和部署相关的Service
                .createDeployment()//创建一个部署对象
                .name("demoProcess")//添加部署的名称
                .addClasspathResource("MyProcess.bpmn")//从classpath下加载资源，一次一个
                .deploy();//完成部署
        System.out.println("部署ID"+deployment.getId());//1
        System.out.println("部署名称"+deployment.getName());
    }

    /**
     *启动流程实例
     */
    @Test
    public void startProcessInstance() {
        String processDefinitionKey = "myProcess";
        ProcessInstance processInstance = processEngine.getRuntimeService()//与正在执行的流程实例和执行对象相关的Service
                .startProcessInstanceByKey(processDefinitionKey);//根据Key值来查询流程,也可以根据ID
        System.out.println("流程实例ID:"+processInstance.getId());  //2501
        //对应数据库act_ru_execution
        System.out.println("流程定义ID:"+processInstance.getProcessDefinitionId()); //helloword:1:4
        //对应数据库act_re_deployment
    }

    /**
     * 查询当前个人的任务
     */
    @Test
    public void fingByPerson() {
        String assignee = "user1";
        List<Task> list = processEngine.getTaskService()//与正在执行的任务管理相关的Service
                .createTaskQuery()//创建任务查询对象
                .taskAssignee(assignee)//指定个人任务查询，指定代理人
                .list();//以list形式记录对象
        if(list != null && list.size()>0) {
            for(Task task:list) {
                System.out.println("任务ID:"+task.getId());//22504
                System.out.println("任务名称："+task.getName());//提交申请
                System.out.println("任务的创建时间："+task.getCreateTime());//：Wed Nov 14 17:02:43 CST 2018
                System.out.println("任务的代理人："+task.getAssignee());//staff1
                System.out.println("流程实例ID："+task.getProcessInstanceId());//22501
                System.out.println("执行对象ID："+task.getExecutionId());//22501
                System.out.println("流程定义ID："+task.getProcessDefinitionId());//demoProcess:1:20004
            }
        }
    }

    /**
     * 完成个人任务
     */
    @Test
    public void complete() {
        String taskId = "32508";
        processEngine.getTaskService()
        .complete(taskId );
        System.out.println("完成任务ID："+taskId);
    }

}

8、右键执行测试结果

image.png

9、完成工程结构

image.png

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