jbpm4.4的小小HelloWorld实例

1首先下载:jbpm4.4

2.然后安装MyEclipse jbpm的插件.在MyEclipse Configuration Center 中的Software 中
点击addsite 然后在弹窗中点击add form Archive File然后把下载的jbpm- 4.4\install\src\gpd导入进来.然后继续在softeware中把jbpm4.4下拉框中的所有文件 Add to Profile,然后在窗口右上角可以看到apply. 点击下,插件就安装好了.

3.安装jbpm的数据库脚本 在jbpm4.4下/install/src/db/create 里面.根据你的数据库做选择.
各种表安装后,开始配置.
4.利用jbpm已经给我们弄好的简单的实例配置,全部复制到项目下.在jbpm4.4/example/src下的所有配置文件,不包括org.

5.实例主要用到了jbpm下的state 所以我们要先建立一个 流程图,
这里新建流程图 就用到插件了. 由于懒 就直接


jbpm-4.4\examples\src\org\jbpm\examples\state\sequence下的process.jpdl拷贝到我们的项目中,改个名字叫helloworld.

里面的代码也要有点修改


这里面就是我们设定好了的流程.

6.差点忘记数据库的配置了. 我用的是oracle.连接字符串这些的就自己把握了.



7.建立一个有main方法的类.类中的代码是



import org.jbpm.api.Configuration;

import org.jbpm.api.Execution;

import org.jbpm.api.ExecutionService;

import org.jbpm.api.ProcessEngine;

import org.jbpm.api.ProcessInstance;

import org.jbpm.api.RepositoryService;

public class TestJbpm {



public static RepositoryService repositoryService = null;

public static ProcessEngine processEngine = null;

public static ExecutionService executionServicece = null;

public static void main(String[] args) {

//发布流程

processEngine = Configuration.getProcessEngine();

repositoryService = processEngine.getRepositoryService();

executionServicece = processEngine.getExecutionService();

String processId = repositoryService.createDeployment().addResourceFromClasspath("hellodWorld.jpdl.xml")

.deploy();

System.out.println("发布完成!:processId = " + processId);

//启动流程

ProcessInstance processInstance = executionServicece.startProcessInstanceByKey("StateSequence");

printLocation(processInstance);

//执行流程

Execution executionInA = processInstance.findActiveExecutionIn("a");

processInstance = executionServicece.signalExecutionById(executionInA.getId());

printLocation(processInstance);

Execution executionInB = processInstance.findActiveExecutionIn("b");

processInstance = executionServicece.signalExecutionById(executionInB.getId());

printLocation(processInstance);

Execution executionInE = processInstance.findActiveExecutionIn("helloWorld!");

processInstance = executionServicece.signalExecutionById(executionInE.getId());

}

//输出当前流程的位置！

public static void printLocation(ProcessInstance processInstance){

if(processInstance.isActive("a")){

System.out.println("流程到了a");

}else if(processInstance.isActive("b")){

System.out.println("流程到了b");

}else if(processInstance.isActive("helloWorld!")){

System.out.println("helloWorld!");

}

}

}

8.

public static RepositoryService repositoryService = null;

public static ProcessEngine processEngine = null;

public static ExecutionService executionServicece = null;
这三个类中:第一个是用到发布流程的,第二个是控制全局的,
第三个是用来取得流程实例,且可以执行流程的

processEngine = Configuration.getProcessEngine();

repositoryService = processEngine.getRepositoryService();

executionServicece = processEngine.getExecutionService();


9.效果图: