Activiti 环境配置从无到有及学习心得(文档待续...)

Posted 2020-09-23

最近做了个项目需要用到工作流, 工作流引擎有很多, 经比较最终选择了Activity 进行开发;

在使用之前需要搞清楚什么是工作流, 流程引擎, 流程实例 等概念, 以及对应表的含义[注: Activiti工作流共23张表, JBPM共18张表] 使自己快速熟悉工作流的这一套运作流程;

开发工具:

　　Eclipse (我使用的版本是 eclipse-jee-oxygen-M3-win32-x86_64)

1. 下载开发工具:  略...

2. 开发工具安装Activiti插件: 略...

3. 新建maven项目

　　工具栏点击"File-New-Other..." 选择 "Maven-Maven Project" 后点击Next 勾选上 Create a simple project (skip archetype selection)

点击 Next 并填写项目信息

点击Finish创建项目

配置依赖jar包

  1 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  2     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  3     <modelVersion>4.0.0</modelVersion>
  4     <groupId>cn.zjx</groupId>
  5     <artifactId>activiti</artifactId>
  6     <version>0.0.1-SNAPSHOT</version>
  7     <packaging>war</packaging>
  8 
  9     <dependencies>
 10         <!-- junit 依赖jar -->
 11         <dependency>
 12             <groupId>junit</groupId>
 13             <artifactId>junit</artifactId>
 14             <version>4.11</version>
 15         </dependency>
 16         <!-- junit 依赖jar -->
 17         
 18         <!-- mysql JDBC 驱动jar -->
 19         <dependency>
 20             <groupId>mysql</groupId>
 21             <artifactId>mysql-connector-java</artifactId>
 22             <version>5.1.27</version>
 23         </dependency>
 24         <!-- MYSQL JDBC 驱动jar -->
 25 
 26         <!-- spring相关jar -->
 27         <!-- SPRING BEGIN -->
 28         <dependency>
 29             <groupId>org.springframework</groupId>
 30             <artifactId>spring-core</artifactId>
 31             <version>4.1.0.RC2</version>
 32         </dependency>
 33         <dependency>
 34             <groupId>org.springframework</groupId>
 35             <artifactId>spring-beans</artifactId>
 36             <version>4.1.0.RC2</version>
 37         </dependency>
 38         <dependency>
 39             <groupId>org.springframework</groupId>
 40             <artifactId>spring-context</artifactId>
 41             <version>4.1.0.RC2</version>
 42         </dependency>
 43         <dependency>
 44             <groupId>org.springframework</groupId>
 45             <artifactId>spring-context-support</artifactId>
 46             <version>4.1.0.RC2</version>
 47         </dependency>
 48         <dependency>
 49             <groupId>org.springframework</groupId>
 50             <artifactId>spring-aop</artifactId>
 51             <version>4.1.0.RC2</version>
 52         </dependency>
 53         <dependency>
 54             <groupId>org.springframework</groupId>
 55             <artifactId>spring-jdbc</artifactId>
 56             <version>4.1.0.RC2</version>
 57         </dependency>
 58         <dependency>
 59             <groupId>org.springframework</groupId>
 60             <artifactId>spring-orm</artifactId>
 61             <version>4.1.0.RC2</version>
 62         </dependency>
 63         <dependency>
 64             <groupId>org.springframework</groupId>
 65             <artifactId>spring-tx</artifactId>
 66             <version>4.1.0.RC2</version>
 67         </dependency>
 68         <dependency>
 69             <groupId>org.springframework</groupId>
 70             <artifactId>spring-web</artifactId>
 71             <version>4.1.0.RC2</version>
 72         </dependency>
 73         <dependency>
 74             <groupId>org.springframework</groupId>
 75             <artifactId>spring-webmvc</artifactId>
 76             <version>4.1.0.RC2</version>
 77         </dependency>
 78         <dependency>
 79             <groupId>org.springframework</groupId>
 80             <artifactId>spring-expression</artifactId>
 81             <version>4.1.0.RC2</version>
 82         </dependency>
 83         <dependency>
 84             <groupId>org.springframework</groupId>
 85             <artifactId>spring-test</artifactId>
 86             <version>4.1.0.RC2</version>
 87         </dependency>
 88         <!-- SPRING END -->
 89         <!-- spring相关jar -->
 90 
 91         <!-- ACTIVITI 工作流 BEGIN -->
 92         <dependency>
 93             <groupId>org.activiti</groupId>
 94             <artifactId>activiti-engine</artifactId>
 95             <version>5.22.0</version>
 96         </dependency>
 97         <dependency>
 98             <groupId>org.activiti</groupId>
 99             <artifactId>activiti-spring</artifactId>
100             <version>5.22.0</version>
101         </dependency>
102         <dependency>
103             <groupId>org.activiti</groupId>
104             <artifactId>activiti-json-converter</artifactId>
105             <version>5.22.0</version>
106         </dependency>
107         <dependency>
108             <groupId>org.activiti</groupId>
109             <artifactId>activiti-explorer</artifactId>
110             <version>5.22.0</version>
111             <exclusions>
112                 <exclusion>
113                     <artifactId>vaadin</artifactId>
114                     <groupId>com.vaadin</groupId>
115                 </exclusion>
116                 <exclusion>
117                     <artifactId>dcharts-widget</artifactId>
118                     <groupId>org.vaadin.addons</groupId>
119                 </exclusion>
120                 <exclusion>
121                     <artifactId>activiti-simple-workflow</artifactId>
122                     <groupId>org.activiti</groupId>
123                 </exclusion>
124             </exclusions>
125         </dependency>
126         <dependency>
127             <groupId>org.activiti</groupId>
128             <artifactId>activiti-modeler</artifactId>
129             <version>5.22.0</version>
130         </dependency>
131         <dependency>
132             <groupId>org.activiti</groupId>
133             <artifactId>activiti-diagram-rest</artifactId>
134             <version>5.22.0</version>
135         </dependency>
136         <!-- ACTIVITI 工作流 BEGIN -->
137         
138         <!-- JSON 依赖, activiti似乎也是依赖此jar的 -->
139         <dependency>
140             <groupId>com.fasterxml.jackson.core</groupId>
141             <artifactId>jackson-core</artifactId>
142             <version>2.7.5</version>
143         </dependency>
144         <dependency>
145             <groupId>com.fasterxml.jackson.core</groupId>
146             <artifactId>jackson-databind</artifactId>
147             <version>2.7.5</version>
148         </dependency>
149         <dependency>
150             <groupId>com.fasterxml.jackson.core</groupId>
151             <artifactId>jackson-annotations</artifactId>
152             <version>2.7.5</version>
153         </dependency>
154         <!-- JSON 依赖, activiti似乎也是依赖此jar的 -->
155 
156         <!-- 2017年5月31日 17:20:27 zjx 添加dbcp数据源和mybatis依赖jar BEGIN -->
157         <!-- MyBatis -->
158         <dependency>
159             <groupId>org.mybatis</groupId>
160             <artifactId>mybatis</artifactId>
161             <version>3.3.0</version>
162         </dependency>
163         <!--spring只针对ibatis整合依赖 -->
164         <dependency>
165             <groupId>org.mybatis</groupId>
166             <artifactId>mybatis-spring</artifactId>
167             <version>1.2.3</version>
168         </dependency>
169         <!-- 2017年5月31日 17:21:09 zjx 添加dbcp数据源和mybatis依赖jar END -->
170 
171     </dependencies>
172 </project>

通过测试代码自动创建工作流相关的23张表(创建数据库activiti_primary)

CreateTablesTest

 1 package activiti;
 2 
 3 import org.activiti.engine.ProcessEngine;
 4 import org.activiti.engine.ProcessEngineConfiguration;
 5 import org.activiti.engine.impl.cfg.ProcessEngineConfigurationImpl;
 6 import org.junit.Test;
 7 
 8 public class CreateTablesTest {
 9 
10     /**
11      * 测试创建activiti的23张表
12      */
13     @Test
14     public void createActivitiTablesTest() {
15         // 1. 创建流程引擎配置类
16         ProcessEngineConfiguration processEngineConfiguration = ProcessEngineConfigurationImpl.createStandaloneProcessEngineConfiguration();
17         // 设置流程引擎配置类
18         processEngineConfiguration.setJdbcDriver("com.mysql.jdbc.Driver");
19         processEngineConfiguration.setJdbcUrl("jdbc:mysql://127.0.0.1:3306/activiti_primary?useUnicode=true&characterEncoding=utf-8");
20         processEngineConfiguration.setJdbcUsername("root");
21         processEngineConfiguration.setJdbcPassword("root");
22         
23         // 2. 设置是否自动创建表;
24         /**
25          * String DB_SCHEMA_UPDATE_FALSE = "false";不能自动创建表，需要表存在
26          * DB_SCHEMA_UPDATE_CREATE_DROP = "create-drop";先删除表再创建表
27          * DB_SCHEMA_UPDATE_TRUE = "true";如果表不存在，自动创建表
28          */
29         processEngineConfiguration.setDatabaseSchemaUpdate(ProcessEngineConfigurationImpl.DB_SCHEMA_UPDATE_TRUE);
30         
31         // 3. 根据流程引擎配置类构建流程引擎
32         ProcessEngine processEngine = processEngineConfiguration.buildProcessEngine();
33     }
34     
35     /**
36      * 从流程引擎中获取流程的service
37      */
38     @Test
39     public void getServiceFromProcessEngine() {
40         
41     }
42     
43 }

再次查看数据库时发现23张表已经创建完成