02-jbpm工作流管理

﹏ヽ暗。殇╰゛Y 2022-01-11 03:29 278阅读 0赞

工作流管理：其它参数详见上一篇介绍：[http://blog.csdn.net/zhengyong15984285623/article/details/9282047][http_blog.csdn.net_zhengyong15984285623_article_details_9282047]

package cn.edu.zust.itee;
    
    import java.io.FileOutputStream;
    import java.io.InputStream;
    import java.io.OutputStream;
    import java.util.List;
    import java.util.Set;
    
    import org.jbpm.api.Configuration;
    import org.jbpm.api.ProcessDefinition;
    import org.jbpm.api.ProcessDefinitionQuery;
    import org.jbpm.api.ProcessEngine;
    import org.junit.Test;
    
    /**
     * @author 郑勇
     * 2013-07-09 15:47
     */
    
    //注意：deploymentId对应jbpm4_deployment表中的"DBID_"字段；
    
    public class ProcessDefinitionManage {
    	
    	//单例模式获取流程引擎
    	//singleton = new Configuration().setResource("jbpm.cfg.xml").buildProcessEngine();
    	private ProcessEngine processEngine = Configuration.getProcessEngine(); 
    	
    	//1.部署流程定义(添加)
    	//相关表：jbpm4_deployment,jbpm4_deployprop,jbpm4_lob
    	@Test
    	public void deploy(){
    		String deploymentId = processEngine.getRepositoryService()
    					 .createDeployment()
    					 .addResourceFromClasspath("helloword/test.jpdl.xml")
    					 .addResourceFromClasspath("helloword/test.png")
    					 .deploy();
    		System.out.println(deploymentId);
    	}
    	
    	//2.查询所有流程定义
    	@Test
    	public void findAll(){
    		//查询
    		List<ProcessDefinition> list = processEngine.getRepositoryService()
    													.createProcessDefinitionQuery()
    													.orderAsc(ProcessDefinitionQuery.PROPERTY_KEY)
    													.list();
    		//显示
    		for(ProcessDefinition pd : list){
    			System.out.println("id="+pd.getId()                 //格式{key}-{version}
    			+",name="+pd.getName()      //流程定义"xxx.jpdl.xml"中根元素的name属性的值
    			+",key="+pd.getKey()        //流程定义"xxx.jpdl.xml"中根元素的key属性的值(不写，默认与name属性一致)
    			+",version="+pd.getVersion()//流程定义"xxx.jpdl.xml"中根元素的version属性的值(不写，key一样时，默版本认自增)
    			+",deploymentId="+pd.getDeploymentId());
    		}
    	}
       
    	//3.删除流程定义(其实是删除Deployment)
    	@Test
    	public void delete(){
    		String deploymentId = "1";
    		//删除Deployment，如果有关联信息,就抛异常
    //		processEngine.getRepositoryService().deleteDeployment(deploymentId);
    		//删除Deployment，如果有关联信息,就级联删除
    		processEngine.getRepositoryService().deleteDeploymentCascade(deploymentId);
    		
    	}
    	
    	//4.获取部署时某文件的资源(查看流程图)
    	@Test
    	public void getResourceFromDeployment() throws Exception{
    		String deploymentId = "40001";
    		String resourceName  = "helloword/test.png";
    		
    		//获取某Deployment中所有资源文件的名称
    		Set<String> set = processEngine.getRepositoryService().getResourceNames(deploymentId);
    		for(String flieName : set){
    			System.out.println(flieName);
    		}
    		
    		//获取某Deployment中所有资源文件
    		InputStream in  = processEngine.getRepositoryService().getResourceAsStream(deploymentId, resourceName);
    		//保存在E盘中
    		OutputStream out = new FileOutputStream("E://process.png");
    		for(int b = -1;(b=in.read())!= -1;){
    			out.write(b);
    		}
    		in.close();
    		out.close();
    	}
    }

[http_blog.csdn.net_zhengyong15984285623_article_details_9282047]: http://blog.csdn.net/zhengyong15984285623/article/details/9282047