05-jbpm工作流的流转Transition

素颜马尾好姑娘i 2022-01-11 00:09 218阅读 0赞

工作流图:

![SouthEast][]

test.jpdl.xml:

<?xml version="1.0" encoding="UTF-8"?>
    
    <process name="test" xmlns="http://jbpm.org/4.4/jpdl">
       <start g="207,6,48,48" name="start1">
          <transition name="to 部门经理审批" to="部门经理审批" g="-93,-22"/>
       </start>
       <task assignee="部门经理" g="189,107,92,52" name="部门经理审批">
          <transition name="to 总经理审批" to="总经理审批" g="-81,-22"/>
          <transition name="to end1" to="end1" g="-50,-22"/>
       </task>
       <task assignee="总经理" g="336,183,92,52" name="总经理审批">
          <transition g="-50,-22" name="to end1" to="end1"/>
       </task>
       <end g="201,304,48,48" name="end1"/>
    </process>

java Code:

package cn.edu.zust.itee.transition;
    
    import java.io.InputStream;
    
    import org.jbpm.api.Configuration;
    import org.jbpm.api.ProcessEngine;
    import org.jbpm.api.ProcessInstance;
    import org.junit.Test;
    
    /**
     * @author 郑勇
     * 2013-07-10 12:43 
     * 流转(Transition)即：连线（单向箭头）:
     *   1.开始活动只能有一个Transition
     *   2.结束活动中没有Transition
     *   3.其它活动中都是可以有1个或多个Transition，需要指定不同的名称
     */
    public class ProcessTransition {
    
    	ProcessEngine processEngine = Configuration.getProcessEngine();
    	
    	@Test
    	public void testTransition(){
    		
    		//部署流程定义
    		//获得当前包中的文件
    		InputStream in = this.getClass().getResourceAsStream("test.jpdl.xml");
    		processEngine.getRepositoryService()
    		             .createDeployment()
    		             .addResourceFromInputStream("test.jpdl.xml", in)
    		             .deploy();
    											
    		
    		//启动流程实例
    		ProcessInstance pi = processEngine.getExecutionService()
    					 .startProcessInstanceByKey("test");
    		
    		
    		//完成"部门经理任务"，并使用指定连线离开当前活动
    		String taskId = processEngine.getTaskService().createTaskQuery() //查询出该流程实例中仅有的一个任务
    									  .processInstanceId(pi.getId())
    									  .uniqueResult()
    									  .getId();
    		//活动中都是可以有1个或多个Transition，需要指定不同的名称
    		processEngine.getTaskService().completeTask(taskId,"to 总经理审批");
    	}
    }

[SouthEast]: /images/20220110/96aacb598c7641748f4da1bc622ce490.png