Jboss-jbpm介绍及简单例子

jbpm是一个工作流框架,现已加入了Jboss组织。

下载地址：http://labs.jboss.com/projects/download/

下面是一个网上收罗过来的个人感觉非常简单的例子，在这里做一个笔记。

本文使用的jbpm版本：3.1.4。

文件结构如下：

processdefinition.xml文件：

<? xml version="1.0" encoding="UTF-8" ?>
< process-definition  xmlns ="urn:jbpm.org:jpdl-3.1"  name ="example_5" >
     < start-state  name ="开始" >
         < event  type ="node-leave" >
             < action  name ="action1" ></ action >
         </ event >
         < transition  name ="tr1"  to ="工作中" ></ transition >
         < transition  name ="tr2"  to ="求学中" ></ transition >
     </ start-state >
     < state  name ="工作中" >
         < event  type ="node-enter" >
             < action  name ="工作"  class ="com.wide.example5.WorkAction" ></ action >
         </ event >
         < transition  name =""  to ="终成正果" ></ transition >
     </ state >
     < state  name ="求学中" >
         < event  type ="node-enter" >
             < action  name ="学习"  class ="com.wide.example5.StudyAction" ></ action >
         </ event >
         < transition  name =""  to ="终成正果" ></ transition >
     </ state >
     < end-state  name ="终成正果" >
         < event  type ="node-enter" >
             < action  name ="圆满"  class ="com.wide.example5.EndAction" ></ action >
         </ event >
     </ end-state >
</ process-definition >

StartAction.java文件：

package  com.wide.example5;

import  org.apache.commons.logging.Log;
import  org.apache.commons.logging.LogFactory;
import  org.jbpm.graph.def.ActionHandler;
import  org.jbpm.graph.exe.ExecutionContext;

public   class  StartAction  implements  ActionHandler  ... {

    private static final long serialVersionUID = 7004254907848592166L;
    
    private static final Log logger = LogFactory.getLog(StartAction.class);

    public void execute(ExecutionContext executionContext) throws Exception ...{
        
        logger.info("刚开始前途未卜...");
    }
}

StudyAction.java文件：

package  com.wide.example5;

import  org.apache.commons.logging.Log;
import  org.apache.commons.logging.LogFactory;
import  org.jbpm.graph.def.ActionHandler;
import  org.jbpm.graph.exe.ExecutionContext;

public   class  StudyAction  implements  ActionHandler  ... {

    private static final long serialVersionUID = -4927790934014966410L;

    private static final Log logger = LogFactory.getLog(StudyAction.class);

    public void execute(ExecutionContext executionContext) throws Exception ...{
        
        logger.info("努力学习本领...");
    }
}

WorkAction.java文件：

package  com.wide.example5;

import  org.apache.commons.logging.Log;
import  org.apache.commons.logging.LogFactory;
import  org.jbpm.graph.def.ActionHandler;
import  org.jbpm.graph.exe.ExecutionContext;

public   class  WorkAction  implements  ActionHandler  ... {

    private static final long serialVersionUID = 9112792586877839879L;

    private static final Log logger = LogFactory.getLog(WorkAction.class);
   
    public void execute(ExecutionContext executionContext) throws Exception ...{
        
        logger.info("努力工作赚钱...");
    }
}

EndAction.java文件：

package  com.wide.example5;

import  org.apache.commons.logging.Log;
import  org.apache.commons.logging.LogFactory;
import  org.jbpm.graph.def.ActionHandler;
import  org.jbpm.graph.exe.ExecutionContext;

public   class  EndAction  implements  ActionHandler  ... {

    private static final long serialVersionUID = -3161235991642461706L;

    private static final Log logger = LogFactory.getLog(EndAction.class);

    public void execute(ExecutionContext executionContext) throws Exception ...{
        
        logger.info("善哉,终成正果,往生极乐!");
    }
}

Example5.java测试代码：

package  com.wide;

import  org.jbpm.graph.def.ProcessDefinition;
import  org.jbpm.graph.exe.ProcessInstance;
import  org.jbpm.graph.exe.Token;

public   class  Example5  ... {
    
    public static void main(String[] argv)...{
        
        ProcessDefinition processDefinition = ProcessDefinition.parseXmlResource("processdefinition.xml");
        ProcessInstance ProcessInstance = new ProcessInstance(processDefinition);

        Token token = ProcessInstance.getRootToken();
        
        System.out.println(token.getNode().getName());
        token.signal("tr2");
        System.out.println(token.getNode().getName());
        token.signal();
        System.out.println(token.getNode().getName());
    }
}

更多资源：

http://jbpm-x.javaeye.com/category/19561

http://www.blogjava.net/chengang/category/12967.html