這篇文章將為大家詳細講解有關Activiti Spring集成的示例分析,小編覺得挺實用的,因此分享給大家做個參考,希望大家閱讀完這篇文章后可以有所收獲。
Activiti版本:5.17.0
Eclipse版本:Kepler Service Release 2
JDK版本:1.7.0_51
Mysql版本:5.5.33
在Eclipse中集成了 Activiti Eclipse Designer 插件后(見《Eclipse 集成Activiti Eclipse Designer 插件》),
File->New->Other->Activiti->Activiti Project
Project Name為activiti-demo
創建項目后,默認是這樣的
已經是maven結構,但是還需要將項目轉換成maven項目
在項目上右鍵->Configure->Conver to Maven Project,見下圖
轉換完成后,編輯pom.xml,添加依賴包,見下
<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>org.activiti.examples</groupId> <artifactId>activiti-examples</artifactId> <version>1.0-SNAPSHOT</version> <packaging>jar</packaging> <name>BPMN 2.0 with Activiti - Examples</name> <properties> <activiti-version>5.17.0</activiti-version> <spring-version>3.2.4.RELEASE</spring-version> <mysql-version>5.1.29</mysql-version> </properties> <dependencies> <!-- junit --> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.11</version> </dependency> <!-- spring --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>${spring-version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>${spring-version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-tx</artifactId> <version>${spring-version}</version> </dependency> <!-- activiti --> <dependency> <groupId>org.activiti</groupId> <artifactId>activiti-engine</artifactId> <version>${activiti-version}</version> </dependency> <dependency> <groupId>org.activiti</groupId> <artifactId>activiti-spring</artifactId> <version>${activiti-version}</version> </dependency> <!-- Mysql --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>${mysql-version}</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-api</artifactId> <version>1.7.2</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-jdk14</artifactId> <version>1.7.2</version> </dependency> </dependencies> </project>
目錄結構如下
至此,準備工作到此結束
在src/main/resources下添加Spring的配置文件,spring-activiti.xml如下
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd"> <bean id="processEngineConfiguration" class="org.activiti.spring.SpringProcessEngineConfiguration"> <property name="dataSource" ref="dataSource" /> <property name="transactionManager" ref="transactionManager" /> <!-- databaseSchemaUpdate: 設置流程引擎啟動和關閉時如何處理數據庫表。 false(默認):檢查數據庫表的版本和依賴庫的版本, 如果版本不匹配就拋出異常。 true: 構建流程引擎時,執行檢查,如果需要就執行更新。 如果表不存在,就創建。 create-drop: 構建流程引擎時創建數據庫表, 關閉流程引擎時刪除這些表。 --> <property name="databaseSchemaUpdate" value="true" /> <property name="jobExecutorActivate" value="false" /> <property name="asyncExecutorEnabled" value="true" /> <property name="asyncExecutorActivate" value="false" /> <property name="mailServerHost" value="mail.my-corp.com" /> <property name="mailServerPort" value="5025" /> </bean> <bean id="processEngine" class="org.activiti.spring.ProcessEngineFactoryBean"> <property name="processEngineConfiguration" ref="processEngineConfiguration" /> </bean> <bean id="repositoryService" factory-bean="processEngine" factory-method="getRepositoryService" /> <bean id="runtimeService" factory-bean="processEngine" factory-method="getRuntimeService" /> <bean id="taskService" factory-bean="processEngine" factory-method="getTaskService" /> <bean id="identityService" factory-bean="processEngine" factory-method="getIdentityService" /> <bean id="historyService" factory-bean="processEngine" factory-method="getHistoryService" /> <bean id="formService" factory-bean="processEngine" factory-method="getFormService" /> <bean id="managementService" factory-bean="processEngine" factory-method="getManagementService" /> <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource" > <property name="driverClassName" value="com.mysql.jdbc.Driver" /> <property name="url" value="jdbc:mysql://192.168.150.63:3306/activiti?autoReconnect=true" /> <property name="username" value="root" /> <property name="password" value="root111111" /> <!-- <property name="defaultAutoCommit" value="false" /> --> </bean> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource" /> </bean> </beans>
各個Activiti的主要bean的作用如下:
processEngineConfiguration Activiti流程引擎
processEngine Activiti的主接口
repositoryService Activiti的資源操作接口
runtimeService 運行時操作接口(大多操作流程實例)
taskService 任務操作接口
identityService 身份操作接口(用戶和用戶組)
historyService 歷史查詢接口
formService 表單數據綁定接口
managementService 管理接口
在src/main/resources/diagrams/下創建一個工作流,命名為DemoProcess.bpmn,如下圖,利用Activiti插件新建流程圖
此時進入Activiti Diagram Editor,在空白處點一下,下邊屬性欄中設置id和name,id就是這個流程的key,后邊啟動流程的時候使用到。
在圖中單機FirstTask,設置其ID為firstTask,同樣方法設置SecondTask的ID為secondTask
設置完畢后,此工作流以xml方式打開是這樣的
<?xml version="1.0">
至此,流程設計完畢
package com.lei.demo.activiti.spring.test; import java.util.List; import org.activiti.engine.HistoryService; import org.activiti.engine.ProcessEngine; import org.activiti.engine.RepositoryService; import org.activiti.engine.RuntimeService; import org.activiti.engine.TaskService; import org.activiti.engine.history.HistoricProcessInstance; import org.activiti.engine.repository.Deployment; import org.activiti.engine.runtime.ProcessInstance; import org.activiti.engine.task.Task; import org.springframework.context.ApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext; public class DemoProcess { private static ApplicationContext context; public static void main(String[] args) { System.out.println( "start" ); context = new ClassPathXmlApplicationContext("spring-activiti.xml"); //創建Activiti流程引擎,Activiti主接口 ProcessEngine processEngine = (ProcessEngine) context.getBean("processEngine"); System.out.println("processEngine Name:"+processEngine.getName()); // 獲得Activiti的資源操作接口 RepositoryService repositoryService = processEngine.getRepositoryService(); //獲得運行時操作接口(大多操作流程實例) RuntimeService runtimeService = processEngine.getRuntimeService(); //部署流程定義,部署后,activiti會根據數據庫配置自動創建表,添加數據 Deployment deployment = repositoryService .createDeployment() .addClasspathResource("diagrams/DemoProcess.bpmn") .deploy(); System.out.println("deployment ID:"+deployment.getId()+" deployment Name:"+deployment.getName()); //啟動流程實例 ,startProcessInstanceByKey參數DemoProcess即DemoProcess.bpmn中的ID ProcessInstance instance = processEngine .getRuntimeService().startProcessInstanceByKey("DemoProcess"); String procId = instance.getId(); System.out.println("procId:"+ procId); //獲得第一個任務 ,taskDefinitionKey參數為流程途中UserTask的ID TaskService taskService = processEngine.getTaskService(); List<Task> tasks = taskService.createTaskQuery().taskDefinitionKey("firstTask").list(); for (Task task : tasks) { System.out.println("Task信息: taskID -" +task.getId()+" taskName -"+ task.getName()); // 認領任務 taskService.claim(task.getId(), "testUser"); } //完成任務前,輸出testUser下的任務數量 System.out.println("完成任務前,testUser認領的task數量: " + taskService.createTaskQuery().taskAssignee("testUser").count()); //查看testUser 現在是否能夠獲取到該任務 tasks = taskService.createTaskQuery().taskAssignee("testUser").list(); for (Task task : tasks) { System.out.println("Task for testUser: " + task.getName()); // 完成任務 taskService.complete(task.getId()); } //完成任務后,輸出testUser下的任務數量 System.out.println("完成任務后,testUser認領的task數量: " + taskService.createTaskQuery().taskAssignee("testUser").count()); // 獲取并認領第二個任務 tasks = taskService.createTaskQuery().taskDefinitionKey("secondTask").list(); for (Task task : tasks) { System.out.println("Task信息: taskID -" +task.getId()+" taskName -"+ task.getName()); taskService.claim(task.getId(), "testUser"); } //完成第二個任務結束結束流程 for (Task task : tasks) { taskService.complete(task.getId()); } // 核實流程是否結束 HistoryService historyService = processEngine.getHistoryService(); HistoricProcessInstance historicProcessInstance = historyService .createHistoricProcessInstanceQuery() .processInstanceId(procId) .singleResult(); System.out.println("流程實例結束時間: " + historicProcessInstance.getEndTime()); System.out.println( "end" ); } }
運行結果截圖
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