2、添加配置文件。
E:\JBPM\jbpm-4.3\examples\src下的配置文件拷贝到自己java工程的src下。

---------------------------------------------------------------
管理流程定义：发布流程定义、查看流程定义、删除流程定义。
RepositoryService repositoryService = processEngine.getRepositoryService();

String deploymentId = repositoryService.createDeployment().addResourceFromClasspath

("helloworld.jpdl.xml").deploy();
List<ProcessDefinition> list = repositoryService.createProcessDefinitionQuery().list();  
repositoryService.deleteDeploymentCascade(deploymentId);
---------------------------------------------------------------

管理流程实例：发起新流程、执行等待的流程、查看流程实例、终止流程实例、删除流程实例。
ExecutionService executionService = processEngine.getExecutionService();

ProcessInstance pi = executionService.startProcessInstanceByKey("helloworld");
ProcessInstance pi = executionService.signalExecutionById(pi.getId()); //执行等待的流程.
List<ProcessInstance> list = executionService.createProcessInstanceQuery().list();
executionService.endProcessInstance(pi.getId(), "cancel");
executionService.deleteProcessInstanceCascade(pi.getId());

TaskService taskService = processEngine.getTaskService();
taskService.completeTask(taskId, map);

控制流程的活动：Start、End、Decision、Fork、Join、Sub-process、State、task.
原子活动：java、script、sql、hql、email。

2、eclipse3.5版本以上 : http://www.eclipse.org/downloads/ 下选择 Eclipse IDE for Java EE  190M

3、GPD (Graphical Process Designer)插件，路径：E:\jbpm-4.3\install\src\gpd\jbpm-gpd-site.zip。
通过Eclipse-->help-->Install New Software-->Add-->Archive到插件所在路径。

import junit.framework.TestCase;
import org.jbpm.graph.def.ProcessDefinition;
import org.jbpm.graph.exe.ProcessInstance;
import org.jbpm.graph.exe.Token;

public class HelloWorldTest extends TestCase {
      
  public void testHelloWorldProcess() {
        ProcessDefinition processDefinition = ProcessDefinition.parseXmlResource("helloWorld.xml");
        /* 从这里可以看出，是对流程定义的XML进行解析*/
   
    ProcessInstance processInstance =  new ProcessInstance(processDefinition);
    Token token = processInstance.getRootToken();
     assertSame(processDefinition.getStartState(), token.getNode()); 
     token.signal();
     assertSame(processDefinition.getNode("s"), token.getNode());
     token.signal();
     assertSame(processDefinition.getNode("end"), token.getNode());
  }