JBPM工作流框架应用

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JBPM工作流框架应用

• 导入jar包
  
• jbpm案例中获取配置文件，并配置本地数据库
  
  
• 创建流程，并进行相关修改
  
  
  
  
  
• 流程及流程内任务等的草操作

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.zip.ZipInputStream;

import org.jbpm.api.Configuration;
import org.jbpm.api.NewDeployment;
import org.jbpm.api.ProcessDefinition;
import org.jbpm.api.ProcessDefinitionQuery;
import org.jbpm.api.ProcessEngine;
import org.jbpm.api.ProcessInstance;
import org.jbpm.api.TaskQuery;
import org.jbpm.api.task.Task;
import org.junit.Test;


/**
 * 
 * @Title: HelloWorld
 * @Description: 描述
 * @Company: 山东九点连线信息技术有限公司
 * @ProjectName: JBPMModel
 * @author fupengpeng
 * @date 2017年11月14日 上午10:18:34
 */
public class HelloWorld {
    ProcessEngine processEngine = Configuration.getProcessEngine();
    /**
     * 生成18张表
     */
    @Test
    public void test1(){
        Configuration conf = new Configuration();//获取配置对象
        conf.setResource("jbpm.cfg.xml");//加载配置文件
        ProcessEngine processEngine = conf.buildProcessEngine();//创建流程引擎对象
    }

    /**
     * 创建流程引擎对象的方法
     */
    @Test
    public void test2(){
        //方式一
        /*Configuration conf = new Configuration();
        conf.setResource("jbpm.cfg.xml");
        ProcessEngine processEngine = conf.buildProcessEngine();*/

        //方式二  获得的是单例对象
        ProcessEngine processEngine = Configuration.getProcessEngine();
    }

    /**
     * 部署流程定义
     * @throws Exception 
     */
    @Test
    public void test3() throws Exception{
        // 方式一----从类路径下读取文件
        NewDeployment deployment = processEngine.getRepositoryService().createDeployment();//获取部署对象;
        deployment.addResourceFromClasspath("helloworld2.jpdl.xml");//读取xml配置文件
        deployment.addResourceFromClasspath("helloworld2.png");//读取图片文件
        String id = deployment.deploy();//完成部署
        System.out.println(id);
        //  方式二----读取压缩文件流
//      NewDeployment deployment = processEngine.getRepositoryService().createDeployment();//获取部署对象;
//      deployment.addResourcesFromZipInputStream(new ZipInputStream(new FileInputStream(new File("E:\\MyEclipse\\workspacejavawebtestproject\\JBPMModel\\process\\hello.zip"))));
//      String id = deployment.deploy();
//      System.out.println("id = " + id );
    }

    /**
     * 查询流程定义
     */
    @Test
    public void test5(){
        //获得流程定义查询对象
        ProcessDefinitionQuery query = processEngine.getRepositoryService().createProcessDefinitionQuery();
        long count = query.count();
        System.out.println("当前系统流程定义的数量  == " + count);
        List<ProcessDefinition> list = query.list();
        for (ProcessDefinition processDefinition : list) {
            String id = processDefinition.getId();
            String name = processDefinition.getName();
            String key = processDefinition.getKey();
            String deploymentId = processDefinition.getDeploymentId();
            System.out.println("id = " + id + "   name = " + name + "   key = " + key + "    deploymentId = " + deploymentId);
        }

    }

    /**
     * 删除流程定义
     */
    @Test
    public void test4(){
        String deploymentId = "1";
        processEngine.getRepositoryService().deleteDeployment(deploymentId);
    }


    /**
     * 获取流程定义文件
     * @throws IOException 
     */
    @Test
    public void test6() throws IOException{
        String deploymentId = "10001";
        //获得一次部署对应的文件名
        Set<String> names = processEngine.getRepositoryService().getResourceNames(deploymentId);
        for (String string : names) {
            System.out.println("string = " + string);
        }

        //获得一次部署对应的文件输入流
        String resourceName = "helloworld.jpdl.xml";
        String resourceNameXml = "helloworld.jpdl.xml";
        InputStream in = processEngine.getRepositoryService().getResourceAsStream(deploymentId, resourceName);
        //通过输出流将文件保存到本地磁盘
        OutputStream out = new FileOutputStream(new File("E:\\test\\" + resourceName));
        byte[] b = new byte[1024];
        int len = 0;
        while ((len = in.read(b)) != -1) {
            out.write(b,0,len);
        }
        out.close();
        in.close();
    }

    /**
     * 启动一个流程
     */
    @Test
    public void test7(){
//      String processDefinitionId = "请假流程-2";
//      ProcessInstance processInstance = processEngine.getExecutionService().startProcessInstanceById(processDefinitionId);

        String key = "请假流程";
        //启动流程后，产生流程实例对象
        ProcessInstance processInstance = processEngine.getExecutionService().startProcessInstanceByKey(key);
        String id = processInstance.getId();
        String name = processInstance.getName();
        System.out.println("id = " + id + "   name = " + name + "   key = " + key);

    }

    /**
     * 查询我的任务列表
     */
    @Test
    public void test8(){
        String userId = "李四";
        //启动流程后，产生流程实例对象
        TaskQuery query = processEngine.getTaskService().createTaskQuery();
        query.assignee(userId);  // 添加查询的过滤条件
        List<Task> list = query.list();
        for (Task task : list) {
            String executionId = task.getExecutionId();  //用于特殊情况，不需要李四审批时，查到他的所要执行的任务id，传递给test10，根据传入的id，越过此审批。
            System.out.println("id = " + task.getId() + "   name = " + task.getName()+"  executionId = " + executionId );
            //id = 30002   name = 提交申请
        }
    }

    /**
     * 办理任务
     */
    @Test
    public void test9(){

        String taskId = "90002";
        processEngine.getTaskService().completeTask(taskId);

    }

    /**
     * 直接跳转到下一步，越过此步
     */
    @Test
    public void test10(){
        String executionId = "请假流程.90001";
        processEngine.getExecutionService().signalExecutionById(executionId,"to task3");

        //流程实例查询对象
//      ProcessInstanceQuery query = processEngine.getExecutionService().createProcessInstanceQuery();
//      List<ProcessInstance> list = query.list();


        //部署查询对象
//      DeploymentQuery query = processEngine.getRepositoryService().createDeploymentQuery();
//      List<Deployment> list = query.list();
//      for (Deployment d : list) {
//          System.out.println("d.getId = " + d.getId()   + "    " + d.getName());
//      }

    }

    /**
     * 查询对象的使用方式
     */
    @Test
    public void test11(){
        //创建流程定义查询对象
        ProcessDefinitionQuery query = processEngine.getRepositoryService().createProcessDefinitionQuery();
        //添加过滤条件
        query.processDefinitionKey("请假流程");
        //添加排序条件
        query.orderAsc(ProcessDefinitionQuery.PROPERTY_VERSION);
        //添加分页条件
        query.page(0, 10);
//      query.page(10, 20);
        List<ProcessDefinition> list = query.list();
        for (ProcessDefinition pd : list) {
            System.out.println("pd.getId = " + pd.getId()   + "  name = " + pd.getName() + "   key = " + pd.getKey());
        }

    }

    /**
     * 获取最新版本的流程定义
     */
    @Test
    public void test12(){
        //获取所有的流程定义
        ProcessDefinitionQuery query = processEngine.getRepositoryService().createProcessDefinitionQuery();
        query.orderAsc(ProcessDefinitionQuery.PROPERTY_VERSION);
        List<ProcessDefinition> list = query.list();
        Map<String, ProcessDefinition> map = new HashMap<String, ProcessDefinition>();
        for (ProcessDefinition pd : list) {
            String id = pd.getId();
            String key = pd.getKey();
            String name = pd.getName();
            int version = pd.getVersion();
//          System.out.println("Id = " + id   + "  version = " + version + "   key = " + key);
            map.put(key, pd);
        }

        List<ProcessDefinition> pdList = new ArrayList<ProcessDefinition>(map.values());
        for (ProcessDefinition pd : pdList) {
            String id = pd.getId();
            String key = pd.getKey();
            String name = pd.getName();
            int version = pd.getVersion();
            System.out.println("Id = " + id   + "  version = " + version + "   key = " + key);

        }

    }

}

• 更多关于流程的操作见练习项目
  jbpm流程基础练习

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