jbpm4之HelloWorld实例

1.新建Java项目，

2.在src目录下加入以下文件：基本可以从jbpm4的下载目录的src目录找到。

 

jbpm.businesscalendar.cfg.xml

jbpm.cfg.png

jbpm.cfg.xml

jbpm.hibernate.cfg.png

jbpm.hibernate.cfg.xml

3.新建流程定义文件：hello.jpdl.xml

其中内容为：

 

<?xml version="1.0" encoding="UTF-8"?>

<process name="hello" xmlns="http://jbpm.org/4.0/jpdl">
	<start name="start1" g="247,64,48,48">
		<transition name="to state1" to="state1" g="-59,-17" />
	</start>
	<state name="state1" g="254,167,92,52">
		<transition name="to end1" to="end1" g="-47,-17" />
	</state>
	<end name="end1" g="244,277,48,48" />
</process>

 

 

4.修改jbpm.hibernate.cfg.xml文件。我使用mysql数据库连接：

 

<?xml version="1.0" encoding="utf-8"?>

<!DOCTYPE hibernate-configuration PUBLIC
          "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
          "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">

<hibernate-configuration>
	<session-factory>

		<!--
			hsqldb <property
			name="hibernate.dialect">org.hibernate.dialect.HSQLDialect</property>
			<property
			name="hibernate.connection.driver_class">org.hsqldb.jdbcDriver</property>
			<property
			name="hibernate.connection.url">jdbc:hsqldb:mem:.</property>
			<property name="hibernate.connection.username">sa</property>
			<property name="hibernate.connection.password"></property>
		-->
		<!-- mysql
		<property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property> -->
		<property name="hibernate.dialect">org.hibernate.dialect.MySQLInnoDBDialect </property>
		<property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
		<property name="hibernate.connection.url">jdbc:mysql://localhost/jbpmdb</property>
		<property name="hibernate.connection.username">root</property>
		<property name="hibernate.connection.password">123456</property>

		<!--
			<property name="hibernate.hbm2ddl.auto">create-drop</property>
		-->
		<property name="hibernate.format_sql">true</property>

		<mapping resource="jbpm.repository.hbm.xml" />
		<mapping resource="jbpm.execution.hbm.xml" />
		<mapping resource="jbpm.history.hbm.xml" />
		<mapping resource="jbpm.task.hbm.xml" />
		<mapping resource="jbpm.identity.hbm.xml" />

	</session-factory>
</hibernate-configuration>

 

5.新建测试java类：

 

public class HelloTest extends TestCase {
	// 定义一个jbpm4的外观接口，所有的功能服务都是从ProcessEngine里获取的
	public static ProcessEngine processEngine = null;
	String deployId = null;
	// 主要是用来发布流程
	public static RepositoryService repositoryService = null;
	// 主要用来启动流程，执行流程
	ExecutionService executionService = null;
	public HelloTest(){
		processEngine = Configuration.getProcessEngine();	
	}
	
	public void testDeploy(){
		repositoryService = processEngine.getRepositoryService();
		String deployMentId = repositoryService.createDeployment().addResourceFromClasspath("hello.jpdl.xml").deploy();
		List<ProcessDefinition> list = repositoryService.createProcessDefinitionQuery().list() ;
		for (ProcessDefinition processDefinition : list) {
			System.out.println(processDefinition.getId());
		}
		
	}
	public static void main(String[] args) {
		HelloTest test = new HelloTest();
		test.repositoryService = test.processEngine.getRepositoryService();
		String deployMentId = repositoryService.createDeployment().addResourceFromClasspath("hello.jpdl.xml").deploy();
		List<ProcessDefinition> list = repositoryService.createProcessDefinitionQuery().list() ;
		for (ProcessDefinition processDefinition : list) {
			System.out.println(processDefinition.getId());
		}
	}
}

 

6.加入jbpm4的依赖包：

在jbpm4的lib目录下所有jar包以及jbpm.jar

如果是使用用户自定义的库路径会报一个什么xml文件不能解析的错误。估计是加载路径的问题。

可以直接配置依赖直接添加jar包到工程中。