activiti04 | 易学教程

Activiti的使用

1.部署activiti

2.流程定义

3.流程定义部署

4.启动流程实例

5.用户查询代办任务

6.用户办理任务

7.流程结束

请假审批流程

填写请假申请 -->部门经理审批 -->总经理审批

搭建环境

Activiti 7.0.0.Beta1 +jdk1.8 +mysql 5.7

pom.xml

  1  <properties>
  2         <slf4j.version>1.6.6</slf4j.version>
  3         <log4j.version>1.2.12</log4j.version>
  4     </properties>
  5 
  6     <dependencies>
  7 
  8         <dependency>
  9             <groupId>org.activiti</groupId>
 10             <artifactId>activiti-engine</artifactId>
 11             <version>7.0.0.Beta1</version>
 12         </dependency>
 13 
 14         <dependency>
 15             <groupId>org.activiti</groupId>
 16             <artifactId>activiti-spring</artifactId>
 17             <version>7.0.0.Beta1</version>
 18         </dependency>
 19 
 20         <dependency>
 21             <groupId>org.activiti</groupId>
 22             <artifactId>activiti-bpmn-model</artifactId>
 23             <version>7.0.0.Beta1</version>
 24         </dependency>
 25 
 26         <dependency>
 27             <groupId>org.activiti</groupId>
 28             <artifactId>activiti-bpmn-converter</artifactId>
 29             <version>7.0.0.Beta1</version>
 30         </dependency>
 31 
 32         <dependency>
 33             <groupId>org.activiti</groupId>
 34             <artifactId>activiti-json-converter</artifactId>
 35             <version>7.0.0.Beta1</version>
 36         </dependency>
 37 
 38         <dependency>
 39             <groupId>org.activiti</groupId>
 40             <artifactId>activiti-bpmn-layout</artifactId>
 41             <version>7.0.0.Beta1</version>
 42         </dependency>
 43 
 44         <dependency>
 45             <groupId>org.activiti.cloud</groupId>
 46             <artifactId>activiti-cloud-services-api</artifactId>
 47             <version>7.0.0.Beta1</version>
 48         </dependency>
 49 
 50         <dependency>
 51             <groupId>mysql</groupId>
 52             <artifactId>mysql-connector-java</artifactId>
 53             <version>5.1.40</version>
 54         </dependency>
 55 
 56         <dependency>
 57             <groupId>junit</groupId>
 58             <artifactId>junit</artifactId>
 59             <version>4.12</version>
 60         </dependency>
 61 
 62         <!-- log start -->
 63         <dependency>
 64             <groupId>log4j</groupId>
 65             <artifactId>log4j</artifactId>
 66             <version>${log4j.version}</version>
 67         </dependency>
 68         <dependency>
 69             <groupId>org.slf4j</groupId>
 70             <artifactId>slf4j-api</artifactId>
 71             <version>${slf4j.version}</version>
 72         </dependency>
 73         <dependency>
 74             <groupId>org.slf4j</groupId>
 75             <artifactId>slf4j-log4j12</artifactId>
 76             <version>${slf4j.version}</version>
 77         </dependency>
 78         <!-- log end -->
 79 
 80         <dependency>
 81             <groupId>org.mybatis</groupId>
 82             <artifactId>mybatis</artifactId>
 83             <version>3.4.5</version>
 84         </dependency>
 85 
 86         <dependency>
 87             <groupId>commons-dbcp</groupId>
 88             <artifactId>commons-dbcp</artifactId>
 89             <version>1.4</version>
 90         </dependency>
 91 
 92     </dependencies>
 93 
 94 
 95 
 96     <repositories>
 97         <repository>
 98             <id>alfresco</id>
 99             <name>Activiti Releases</name>
100             <url>https://artifacts.alfresco.com/nexus/content/repositories/activiti-releases/</url>
101             <releases>
102                 <enabled>true</enabled>
103             </releases>
104         </repository>
105     </repositories>

activiti.cfg.xml

 1 <?xml version="1.0" encoding="UTF-8"?>
 2 <beans xmlns="http://www.springframework.org/schema/beans"
 3        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 4        xmlns:context="http://www.springframework.org/schema/context"
 5        xmlns:tx="http://www.springframework.org/schema/tx"
 6        xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
 7                         http://www.springframework.org/schema/contex http://www.springframework.org/schema/context/spring-context.xsd
 8                         http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">
 9 
10     <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
11         <property name="driverClassName" value="com.mysql.jdbc.Driver" />
12         <property name="url" value="jdbc:mysql://localhost:3306/activiti" />
13         <property name="username" value="root" />
14         <property name="password" value="root" />
15         <property name="maxActive" value="3" />
16         <property name="maxIdle" value="1" />
17     </bean>
18 
19     <bean id="processEngineConfiguration" class="org.activiti.engine.impl.cfg.StandaloneProcessEngineConfiguration">
20         <property name="dataSource" ref="dataSource"></property>
21         <property name="databaseSchemaUpdate" value="true"/>
22     </bean>
23 
24 
25 </beans>

配置数据源和processEngineConfiguration

processEngineConfiguration 用来创建ProcessEngine

databaseSchemaUpdate 数据表的设计策略

false（默认）：检查数据库表的版本和依赖库的版本，如果版本不匹配就抛出异常。
true: 构建流程引擎时，执行检查，如果需要就执行更新。如果表不存在，就创建。
create-drop: 构建流程引擎时创建数据库表，关闭流程引擎时删除这些表。
drop-create：先删除表再创建表。
create: 构建流程引擎时创建数据库表，关闭流程引擎时不删除这些表

log4j.properties

# Set root category priority to INFO and its only appender to CONSOLE.
#log4j.rootCategory=INFO, CONSOLE            debug   info   warn error fatal
log4j.rootCategory=debug, CONSOLE, LOGFILE

# Set the enterprise logger category to FATAL and its only appender to CONSOLE.
log4j.logger.org.apache.axis.enterprise=FATAL, CONSOLE

# CONSOLE is set to be a ConsoleAppender using a PatternLayout.
log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender
log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout
log4j.appender.CONSOLE.layout.ConversionPattern=%d{ISO8601} %-6r [%15.15t] %-5p %30.30c %x - %m\n

# LOGFILE is set to be a File appender using a PatternLayout.
log4j.appender.LOGFILE=org.apache.log4j.FileAppender
log4j.appender.LOGFILE.File=d:\axis.log
log4j.appender.LOGFILE.Append=true
log4j.appender.LOGFILE.layout=org.apache.log4j.PatternLayout
log4j.appender.LOGFILE.layout.ConversionPattern=%d{ISO8601} %-6r [%15.15t] %-5p %30.30c %x - %m\n

创建数据库

 1     public void testGenTable(){
 2         //创建processEngineConfiguration
 3         ProcessEngineConfiguration configuration =
 4                 ProcessEngineConfiguration.createProcessEngineConfigurationFromResource("activiti.cfg.xml");
 5 
 6         //创建ProcessEngine
 7         ProcessEngine processEngine = configuration.buildProcessEngine();
 8 
 9         System.out.println(processEngine);
10 
11     }

创建25张表

Activiti 的表都以 ACT_开头。第二部分是表示表的用途的两个字母标识。用途也和服务的 API 对
应。
ACT_RE_*: 'RE'表示 repository。这个前缀的表包含了流程定义和流程静态资源（图片，
规则，等等）。
ACT_RU_*: 'RU'表示 runtime。这些运行时的表，包含流程实例，任务，变量，异步任务，
等运行中的数据。 Activiti 只在流程实例执行过程中保存这些数据，在流程结束时就会删
除这些记录。这样运行时表可以一直很小速度很快。
ACT_HI_*: 'HI'表示 history。这些表包含历史数据，比如历史流程实例，变量，任务等
等。
ACT_GE_*: GE 表示 general。通用数据，用于不同场景下

架构图

Service

Service 是工作流引擎提供用于进行工作流部署、执行、管理的服务接口

RepositoryService	activiti 的资源管理类
RuntimeService	activiti 的流程运行管理类
TaskService	activiti 的任务管理类
HistoryService	activiti 的历史管理类
ManagerService	activiti 的引擎管理类

创建bpmn文件

 1 <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
 2 <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="m1540200341676" name="" targetNamespace="http://www.activiti.org/test" typeLanguage="http://www.w3.org/2001/XMLSchema">
 3   <process id="holiday" isClosed="false" isExecutable="true" name="请假流程" processType="None">
 4     <startEvent id="_2" name="StartEvent"/>
 5     <userTask activiti:assignee="zhangsan" activiti:exclusive="true" id="_3" name="填写请假申请单"/>
 6     <userTask activiti:assignee="lishi" activiti:exclusive="true" id="_4" name="部门经理审批"/>
 7     <userTask activiti:assignee="wangwu" activiti:exclusive="true" id="_5" name="总经理审批"/>
 8     <endEvent id="_6" name="EndEvent"/>
 9     <sequenceFlow id="_7" sourceRef="_2" targetRef="_3"/>
10     <sequenceFlow id="_8" sourceRef="_3" targetRef="_4"/>
11     <sequenceFlow id="_9" sourceRef="_4" targetRef="_5"/>
12     <sequenceFlow id="_10" sourceRef="_5" targetRef="_6"/>
13   </process>
14   <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">
15     <bpmndi:BPMNPlane bpmnElement="holiday">
16       <bpmndi:BPMNShape bpmnElement="_2" id="Shape-_2">
17         <omgdc:Bounds height="32.0" width="32.0" x="280.0" y="45.0"/>
18         <bpmndi:BPMNLabel>
19           <omgdc:Bounds height="32.0" width="32.0" x="0.0" y="0.0"/>
20         </bpmndi:BPMNLabel>
21       </bpmndi:BPMNShape>
22       <bpmndi:BPMNShape bpmnElement="_3" id="Shape-_3">
23         <omgdc:Bounds height="55.0" width="85.0" x="255.0" y="140.0"/>
24         <bpmndi:BPMNLabel>
25           <omgdc:Bounds height="55.0" width="85.0" x="0.0" y="0.0"/>
26         </bpmndi:BPMNLabel>
27       </bpmndi:BPMNShape>
28       <bpmndi:BPMNShape bpmnElement="_4" id="Shape-_4">
29         <omgdc:Bounds height="55.0" width="85.0" x="255.0" y="245.0"/>
30         <bpmndi:BPMNLabel>
31           <omgdc:Bounds height="55.0" width="85.0" x="0.0" y="0.0"/>
32         </bpmndi:BPMNLabel>
33       </bpmndi:BPMNShape>
34       <bpmndi:BPMNShape bpmnElement="_5" id="Shape-_5">
35         <omgdc:Bounds height="55.0" width="85.0" x="255.0" y="350.0"/>
36         <bpmndi:BPMNLabel>
37           <omgdc:Bounds height="55.0" width="85.0" x="0.0" y="0.0"/>
38         </bpmndi:BPMNLabel>
39       </bpmndi:BPMNShape>
40       <bpmndi:BPMNShape bpmnElement="_6" id="Shape-_6">
41         <omgdc:Bounds height="32.0" width="32.0" x="275.0" y="455.0"/>
42         <bpmndi:BPMNLabel>
43           <omgdc:Bounds height="32.0" width="32.0" x="0.0" y="0.0"/>
44         </bpmndi:BPMNLabel>
45       </bpmndi:BPMNShape>
46       <bpmndi:BPMNEdge bpmnElement="_7" id="BPMNEdge__7" sourceElement="_2" targetElement="_3">
47         <omgdi:waypoint x="296.0" y="77.0"/>
48         <omgdi:waypoint x="296.0" y="140.0"/>
49         <bpmndi:BPMNLabel>
50           <omgdc:Bounds height="0.0" width="0.0" x="0.0" y="0.0"/>
51         </bpmndi:BPMNLabel>
52       </bpmndi:BPMNEdge>
53       <bpmndi:BPMNEdge bpmnElement="_8" id="BPMNEdge__8" sourceElement="_3" targetElement="_4">
54         <omgdi:waypoint x="297.5" y="195.0"/>
55         <omgdi:waypoint x="297.5" y="245.0"/>
56         <bpmndi:BPMNLabel>
57           <omgdc:Bounds height="0.0" width="0.0" x="0.0" y="0.0"/>
58         </bpmndi:BPMNLabel>
59       </bpmndi:BPMNEdge>
60       <bpmndi:BPMNEdge bpmnElement="_9" id="BPMNEdge__9" sourceElement="_4" targetElement="_5">
61         <omgdi:waypoint x="297.5" y="300.0"/>
62         <omgdi:waypoint x="297.5" y="350.0"/>
63         <bpmndi:BPMNLabel>
64           <omgdc:Bounds height="0.0" width="0.0" x="0.0" y="0.0"/>
65         </bpmndi:BPMNLabel>
66       </bpmndi:BPMNEdge>
67       <bpmndi:BPMNEdge bpmnElement="_10" id="BPMNEdge__10" sourceElement="_5" targetElement="_6">
68         <omgdi:waypoint x="291.0" y="405.0"/>
69         <omgdi:waypoint x="291.0" y="455.0"/>
70         <bpmndi:BPMNLabel>
71           <omgdc:Bounds height="0.0" width="0.0" x="0.0" y="0.0"/>
72         </bpmndi:BPMNLabel>
73       </bpmndi:BPMNEdge>
74     </bpmndi:BPMNPlane>
75   </bpmndi:BPMNDiagram>
76 </definitions>

流程定义

public static void main(String[] args) {
        //1.创建ProcessEngine对象
        ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();

        //2.得到RepositoryService实例
        RepositoryService repositoryService = processEngine.getRepositoryService();

        //3.进行部署
        Deployment deployment = repositoryService.createDeployment()
                .addClasspathResource("diagram/holiday.bpmn")  //添加bpmn资源
                .addClasspathResource("diagram/holiday.png")
                .name("请假申请单流程")
                .deploy();

启动流程实例

 1 /**
 2  * 启动流程实例
 3  * 1.得到ProcessEngine对象
 4  * 2.得到RuntimeService对象
 5  * 3.创建流程实例，需要知道流程定义的key
 6  *
 7  * 背后影响的表
 8  * act_hi_actinst 已完成的活动信息
 9  * act_hi_identifylink 参与者计划
10  * act_hi_procinst 流程实例
11  * act_hi_taskinst 任务实例
12  * act_ru_execution 执行表
13  * act_ru_identitylink 参与者信息
14  * act_ru_task  任务
15  *
16  */
17 public class ActivitiStartInstance {
18 
19     public static void main(String[] args) {
20         ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();
21         RuntimeService runtimeService = processEngine.getRuntimeService();
22         runtimeService.startProcessInstanceByKey("hoilday");
23 
24     }
25 
26 }

任务查询

/**
 * 查询当前用户的任务列表
 * 1.得到ProcessEngine
 * 2.得到taskService对象
 * 3.根据流程定义id的key,负责人assigine来表示当前用户列表查询
 * 4.任务列表的展示
 */
public class TaskQuery {

    public static void main(String[] args) {

        ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();

        TaskService taskService = processEngine.getTaskService();

        Task task = taskService.createTaskQuery()
                .processDefinitionKey("hoilday")
                .taskAssignee("lisi")
                .singleResult();


            System.out.println("流程实例ID"+task.getProcessInstanceId());
            System.out.println("任务ID"+task.getId());
            System.out.println("任务负责人"+task.getAssignee());
            System.out.println("任务名称"+task.getName());
    }
}

任务处理

public class TaskComplete {
        public static void main(String[] args) {
        ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();
        TaskService taskService = processEngine.getTaskService();
        taskService.complete("17502");  //任务查询的ID

    }
}

合并任务查询和处理工作

    /**
     * 合并任务查询和任务处理工作
     * @param args
     */
    public static void main(String[] args) {
        ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();
        TaskService taskService = processEngine.getTaskService();
        Task task = taskService.createTaskQuery().processDefinitionKey("holiday").taskAssignee("wangwu").singleResult();

        //处理任务，结合当前用户任务列表查询操作，任务ID
        taskService.complete(task.getId());

        System.out.println(task.getId());
    }

流程定义部署(压缩包方式)

将 holiday.bpmn 和 holiday.png 压缩成 zip 包

    //流程定义部署  流程制作出来后要上传到服务器 zip文件更便于上传
    public static void main(String[] args) {
        //1.创建ProcessEngine对象
        ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();

        //2.得到RepositoryService实例
        RepositoryService repositoryService = processEngine.getRepositoryService();

        //3.转化出ZipInputStream流对象
        InputStream is = ActivitiDeployment.class.getClassLoader().getResourceAsStream("diagram/bpmn.zip");

        //将 inputstream流转化为ZipInputStream流
        ZipInputStream zipInputStream = new ZipInputStream(is);

        //3.进行部署
        Deployment deployment = repositoryService.createDeployment()
                .addZipInputStream(zipInputStream)
                .name("请假申请单流程")
                .deploy();

        //4.输出部署的一些信息
        System.out.println(deployment.getName());
        System.out.println(deployment.getId());
    }

概述

ProcessEngineConfigiuration类加载activiti.cfg.xml配置文件

ProcessEngine类得到Service接口

Service接口

部署流程定义实例

1.单文件 2.zip包

启动流程实例，RuntimeService startProcessInstanceByKey(" key")

查看任务 taskService.createTaskQuery()

完成任务 taskService.complate(task.getId())

完

来源：https://www.cnblogs.com/quyangyang/p/11330750.html

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