Activiti学习笔记三-开发部署bpmn流程文件

        之前我们学习了Activiti的开发环境的搭建，下面我们开始学习如何在搭建的开发环境中进行Activiti的开发。为了进行一些简单的测试，我们采用Maven工程，然后采用spring-test和junit集成进行测试验证。
第一步：创建Maven工程，加载依赖包，具体的pom.xml文件如下：

<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/xsd/maven-4.0.0.xsd">  <modelVersion>4.0.0</modelVersion>  <groupId>com.dfbhaiou.demo</groupId>  <artifactId>activiti</artifactId>  <version>0.0.1-SNAPSHOT</version>      <!-- 设定除中央仓库(repo1.maven.org/maven2/)外的其他仓库,按设定顺序进行查找. --><properties><jackson.version>2.2.3</jackson.version><activiti.version>5.18.0</activiti.version></properties><repositories><repository><id>oschina</id><name>oschina repository</name><url>http://maven.oschina.net/content/groups/public/</url></repository><repository><id>oschina-thirdparty</id><name>oschina thirdparty repository</name><url>http://maven.oschina.net/content/repositories/thirdparty/</url></repository><repository><id>central</id><name>Central Repository</name><url>http://repo.maven.apache.org/maven2</url></repository><repository><id>org.springframework.maven.milestone</id><name>Spring Framework Maven Milestone Repository</name><url>http://maven.springframework.org/milestone</url></repository><repository><id>Activiti</id><url>https://maven.alfresco.com/nexus/content/groups/public</url></repository></repositories><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>mysql</groupId>  <artifactId>mysql-connector-java</artifactId>  <version>5.1.29</version>  </dependency>  <dependency>  <groupId>org.springframework</groupId>  <artifactId>spring-core</artifactId>  <version>3.2.2.RELEASE</version>  </dependency>  <dependency>  <groupId>org.springframework</groupId>  <artifactId>spring-beans</artifactId>  <version>3.2.2.RELEASE</version>  </dependency>  <dependency>  <groupId>org.springframework</groupId>  <artifactId>spring-test</artifactId>  <version>3.2.2.RELEASE</version>  </dependency>  <dependency>  <groupId>commons-dbcp</groupId>  <artifactId>commons-dbcp</artifactId>  <version>1.4</version>  </dependency>  <dependency>  <groupId>org.springframework</groupId>  <artifactId>spring-context</artifactId>  <version>3.2.2.RELEASE</version>  </dependency>  <dependency>  <groupId>org.springframework</groupId>  <artifactId>spring-context-support</artifactId>  <version>3.2.2.RELEASE</version>  </dependency>  <dependency>  <groupId>org.springframework</groupId>  <artifactId>spring-tx</artifactId>  <version>3.2.2.RELEASE</version>  </dependency>  <dependency>  <groupId>org.springframework</groupId>  <artifactId>spring-orm</artifactId>  <version>3.2.2.RELEASE</version>  </dependency>  <dependency>  <groupId>org.mybatis</groupId>  <artifactId>mybatis</artifactId>  <version>3.2.5</version>  </dependency>    <dependency>  <groupId>junit</groupId>  <artifactId>junit</artifactId>  <version>4.11</version>  </dependency>    <dependency>    <groupId>org.slf4j</groupId>    <artifactId>slf4j-api</artifactId>    <version>1.7.6</version>    </dependency>    <dependency>    <groupId>org.activiti</groupId>    <artifactId>activiti-bpmn-model</artifactId>    <version>${activiti.version}</version>    </dependency>    <dependency>    <groupId>org.activiti</groupId>    <artifactId>activiti-bpmn-converter</artifactId>    <version>${activiti.version}</version>    </dependency>    <dependency>    <groupId>org.activiti</groupId>    <artifactId>activiti-process-validation</artifactId>    <version>${activiti.version}</version>    </dependency>    <dependency>    <groupId>joda-time</groupId>    <artifactId>joda-time</artifactId>    <version>2.1</version>    </dependency>    <dependency>    <groupId>org.slf4j</groupId>    <artifactId>jcl-over-slf4j</artifactId>    <version>1.7.6</version>    </dependency>    <dependency>    <groupId>org.slf4j</groupId>    <artifactId>slf4j-log4j12</artifactId>    <version>1.7.6</version>    </dependency>    <dependency>    <groupId>org.apache.commons</groupId>    <artifactId>commons-lang3</artifactId>    <version>3.1</version>    </dependency>    <dependency>    <groupId>javax.annotation</groupId>    <artifactId>javax.annotation-api</artifactId>    <version>1.2</version>    </dependency>    <dependency>    <groupId>commons-io</groupId>    <artifactId>commons-io</artifactId>    <version>2.4</version>    </dependency><dependency><groupId>c3p0</groupId><artifactId>c3p0</artifactId><version>0.9.1</version></dependency><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><version>5.1.6</version></dependency><!-- jackson --><!-- JSON begin --><dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-core</artifactId><version>${jackson.version}</version></dependency><dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-annotations</artifactId><version>${jackson.version}</version></dependency><dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-databind</artifactId><version>${jackson.version}</version></dependency><!-- JSON end --></dependencies><build><finalName>gtjTelManager</finalName><plugins><plugin><artifactId>maven-compiler-plugin</artifactId><configuration><source>1.6</source><target>1.6</target><encoding>utf-8</encoding></configuration></plugin><plugin><artifactId>maven-assembly-plugin</artifactId><configuration><descriptorRefs><descriptorRef>jar-with-dependencies</descriptorRef></descriptorRefs></configuration></plugin></plugins><!-- 将资源包和src下的*.hbm.xml和*.xml打包 --><resources><resource><directory>src/main/resources</directory></resource><resource><directory>src/main/java</directory><includes><include>**/*.xml</include></includes></resource></resources></build></project>

第二步：配置数据库和activiti（数据库使用activiti-explorer工程的）

数据库的配置文件和activiti的配置文件可以使用activiti-explorer项目下的activiti-standalone-context.xml和db.properties。因为activiti-explorer项目使用的dbcp连接池，而我个人喜好使用c3p0的连接池，所以做了少许的改动，spring的配置文件如下：

<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans-2.0.dtd"><beans><bean id="dataSource-dhcp" class="org.apache.commons.dbcp.BasicDataSource"><property name="driverClassName" value="com.mysql.jdbc.Driver" /><property name="url" value="jdbc:mysql://localhost:3306/activiti" /><property name="username" value="root" /><property name="password" value="123456" /><property name="defaultAutoCommit" value="false" /></bean><!-- 配置数据源 start --><bean id="placeholderConfig"class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"><property name="location"><value>classpath:init.properties</value></property></bean><bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource" destroy-method="close"><property name="driverClass"><value>${datasource.driverClassName}</value></property><property name="jdbcUrl"><value>${datasource.url}</value></property><property name="user"><value>${datasource.username}</value></property><property name="password"><value>${datasource.password}</value></property><property name="acquireIncrement"><value>${c3p0.acquireIncrement}</value></property><property name="initialPoolSize"><value>${c3p0.initialPoolSize}</value></property><property name="minPoolSize"><value>${c3p0.minPoolSize}</value></property><property name="maxPoolSize"><value>${c3p0.maxPoolSize}</value></property><property name="maxIdleTime"><value>${c3p0.maxIdleTime}</value></property><property name="idleConnectionTestPeriod"><value>${c3p0.idleConnectionTestPeriod}</value></property><property name="maxStatements"><value>${c3p0.maxStatements}</value></property><property name="numHelperThreads"><value>${c3p0.numHelperThreads}</value></property></bean><bean id="processEngineConfiguration"class="org.activiti.engine.impl.cfg.StandaloneProcessEngineConfiguration"><property name="dataSource" ref="dataSource" /><property name="databaseType" value="mysql"/><property name="databaseSchemaUpdate" value="true" /><property name="jobExecutorActivate" value="false" /></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="historyService" factory-bean="processEngine" factory-method="getHistoryService" /><bean id="managementService" factory-bean="processEngine" factory-method="getManagementService" /><bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"><property name="dataSource" ref="dataSource" /></bean></beans>

配置好这些后，我们就可以开始编写测试类了。

测试类如下：

@RunWith(SpringJUnit4ClassRunner.class)@ContextConfiguration({"classpath:spring-activiti.xml"})@TransactionConfiguration(transactionManager="transactionManager", defaultRollback=false)@Transactionalpublic class ActivitiTestCase extends AbstractTransactionalJUnit4SpringContextTests{    @Test    public void test(){    System.out.println ("test");     } }

运行上面的单元测试代码，如果在控制台输出ｔｅｓｔ，那代表我们前面的配置都ＯＫ了。

下面我们就开始使用学习二中安装的插件画流程图并部署。

第一步：新建如下结构的目录

建好后，新建一个 activiti Diagram文件，如上图所示的MyProcess.bpmn，建好后，使用Activiti Diagram Editor打开MyProcess.bpmn文件，然后设计一个简单的流程：员工填写年度报告，提交后由主管进行审批，审批通过后，在由经理审批。流程有开始和结束节点，设计好的流程如下；

填写：由sales来进行操作

主管审批和经理审批：由management来进行操作

设计好流程后，如果没有生成对应的流程图片，打开window=>Preferences=>activiti

勾选Save Actions中的Create Process definition image选项：如下图：

保存后，过一会就会在同目录下生成一个图片：

流程设计好后，下面就是部署了，有2种方式，我们这里采用代码的方式进行部署并测试。代码部署方式如下：

<span style="font-family:Microsoft YaHei;font-size:18px;">public class BpmDefinitionTest extends ActivitiTestCase{@Resourceprivate RepositoryService repositoryService;@Resourceprivate RuntimeService runtimeService;@Resource private TaskService taskService;@Resourceprivate HistoryService historyService;@Testpublic void testDeploy(){String filePath="/diagrams/simpleProcess/MyProcess.bpmn";try {InputStream is = Class.class.getClass().getResource(filePath).openStream();/*//读取bpmn文件，并发布Deployment deployment=repositoryService.createDeployment().addInputStream("bpmn20.xml",is).deploy();ProcessDefinition processDefinition = repositoryService.createProcessDefin.itionQuery().deploymentId(deployment.getId()).singleResult();Long businessKey=new Double(1000000*Math.random()).longValue();//启动流程runtimeService.startProcessInstanceById(processDefinition.getId(),businessKey.toString());//查询任务实例List<Task> taskList=taskService.createTaskQuery().processDefinitionId(processDefinition.getId()).list();for(Task task:taskList){System.out.println("task name is " + task.getName() + " ,task key is " + task.getTaskDefinitionKey());}*/// 部署流程定义repositoryService.createDeployment().addInputStream("bpmn20.xml",is).deploy();// 启动流程实例String procId = runtimeService.startProcessInstanceByKey("myProcess").getId();/******************第一个任务开始******************************/List<Task> taskList = taskService.createTaskQuery().taskCandidateGroup("sales").list();for (Task task : taskList) {             System.out.println("Following task is available for sales group: " + task.getName());             // 认领任务这里由foozie认领，因为fozzie是sales组的成员            taskService.claim(task.getId(), "gonzo");        }//查看fozzie是否能够获取该任务taskList = taskService.createTaskQuery().taskAssignee("gonzo").list();System.out.println("fozzie当前的任务数:" + taskList.size());for(Task task : taskList){System.out.println("the task name is :" + task.getName()); // 执行(完成)任务taskService.complete(task.getId());}System.out.println("gonzo当前的任务数:" +  taskService.createTaskQuery().taskAssignee("gonzo").count());/******************第一个任务结束******************************//******************第二个任务开始******************************/taskList = taskService.createTaskQuery().taskCandidateGroup("management").list();for(Task task : taskList){ System.out.println("Following task is available for management group: " + task.getName()); taskService.claim(task.getId(), "kermit");}//查看kermit是否能够获取改任务taskList = taskService.createTaskQuery().taskAssignee("kermit").list();System.out.println("kermit当前任务数：" + taskList.size());for(Task task : taskList){System.out.println("the task name is :" + task.getName());taskService.complete(task.getId());}System.out.println("kermit当前任务数：" +  taskService.createTaskQuery().taskAssignee("kermit").count());/******************第二个任务结束******************************//******************第三个任务开始******************************///获取第三个任务taskList = taskService.createTaskQuery().taskCandidateGroup("management").list();for(Task task : taskList){ System.out.println("Following task is available for management group: " + task.getName()); taskService.claim(task.getId(), "gonzo");}//查看gonzo是否能够获取改任务taskList = taskService.createTaskQuery().taskAssignee("gonzo").list();System.out.println("gonzo当前任务数：" + taskList.size());for(Task task : taskList){System.out.println("the task name is :" + task.getName());taskService.complete(task.getId());}System.out.println("gonzo当前任务数：" +  taskService.createTaskQuery().taskAssignee("gonzo").count());/******************第三个任务结束******************************/ HistoricProcessInstance historicProcessInstance = historyService.createHistoricProcessInstanceQuery()                      .processInstanceId(procId).singleResult(); System.out.println("流程结束时间：" + historicProcessInstance.getEndTime());} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}}}<strong></strong></span>

这里只是简单的使用了activiti的几个api，具体的过程为：部署流程，然后启动流程实例，之后对应节点的用户组用户签收任务并处理直至流程结束。

部署bpmn并测试就到这里了，下一章我们将学习如何部署含有图片的流程实例。