JBPM4-实例

1. 创建流程

   

2. 创建Hello执行的操作

package com.spring.hello;

public class Hello {
	private String msg = "Hello";

	public String sayHello() {
		System.out.println(msg+"VerRan ");
		return msg;
	}
}

3.  修改流程文件配置Hello 节点执行 sayHello操作

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

<process name="Hello" xmlns="http://jbpm.org/4.4/jpdl">
	<start g="8,60,48,48" name="start">
      <transition g="-45,-18" name="to say Hello" to="Hello"/>
	</start>
	<end g="358,62,48,48" name="end"/>
   <java class="com.spring.hello.Hello" g="154,46,92,52" method="sayHello" name="Hello">
      <transition g="-36,-18" name="to end" to="end"/>
   </java>
</process>

 

4. 执行操作

    为了检验JBPM4模型，我们分部执行同时查看数据库数据

    JBPM数据表结构清单

   

select * from JBPM4_DEPLOYMENT;
select * from JBPM4_DEPLOYPROP;
select * from JBPM4_EXECUTION;
select * from JBPM4_HIST_ACTINST;
select * from JBPM4_HIST_DETAIL;
select * from JBPM4_HIST_PROCINST;
select * from JBPM4_HIST_TASK;
select * from JBPM4_HIST_VAR;
select * from JBPM4_ID_GROUP;
select * from JBPM4_ID_MEMBERSHIP;
select * from JBPM4_ID_USER;
select * from JBPM4_JOB;
select * from JBPM4_LOB;
select * from JBPM4_PARTICIPATION;
select * from JBPM4_PROPERTY;
select * from JBPM4_SWIMLANE;
select * from JBPM4_TASK;
select * from JBPM4_VARIABLE;

 

  (1) 创建流程引擎并发布此流程

  

package com.spring.hello;

import org.jbpm.api.Configuration;
import org.jbpm.api.ProcessEngine;

public class ProcessEngineLearn {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		ProcessEngine pe = new Configuration().buildProcessEngine();
		String deploymentId = pe.getRepositoryService().createDeployment()
				.addResourceFromClasspath("com\\spring\\hello\\Hello.jpdl.xml")
				.deploy();
		System.out.println("deploymentId="+deploymentId);

	}

}

 

    查看表数据：

   JBPM4_PROPERTY 表记录了一条数据记录JBPM的属性信息，记录下个流程实例的版本信息。

    KEY_           VERSION_    VALUE_
    next.dbid    7                  70001

   JBPM4_DEPLOYMENT   流程实例信息，记录流程实例的基本信息包括流程实例的状态，当前状态为Active

   JBPM4_DEPLOYPROP   流程实例属性信息 ，记录流程实例的属性信息比如流程参考的jpdl版本信息，流程的名称信息，流程的版本信息等。

   JBPM4_LOB   存储流程模板信息 ，记录了我们上面定义的用于描述流程的xml信息

 

(2) 将上面的流程再执行一次

      我们会发现JBPM4_DEPLOYMENT 表增加了一个流程实例ID=70001 的流程实例。

     JBPM4_DEPLOYPROP   对应pdversion 对应的 值=2 上一个 =1.

 (3) 删除流程实例

    

		ProcessEngine pe = new Configuration().buildProcessEngine();
		 pe.getRepositoryService().deleteDeployment("70001");

 数据库中删除了流程实例ID=70001 的相关信息

(4)启动流程实例