Activiti(二)

1.压缩包流程部署

 将这两个文件压缩成zip格式的压缩包

import org.activiti.engine.ProcessEngine;
import org.activiti.engine.ProcessEngines;
import org.activiti.engine.RepositoryService;
import org.activiti.engine.repository.Deployment;
import org.junit.Test;

import java.io.InputStream;
import java.util.zip.ZipInputStream;

public class Test2 {

    @Test
    public void deploymentByZip(){
        //获取processEngine对象
        ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();
        //获取一个RepositoryService对象
        RepositoryService repositoryService = processEngine.getRepositoryService();
        //定义一个输入流，加载Zip文件
        InputStream inputStream=this.getClass().getClassLoader().getResourceAsStream("bpmn/holiday.zip");
        //定义一个ZIPInputStream对象
        ZipInputStream zipInputStream=new ZipInputStream(inputStream);
        //流程部署
        Deployment deploy = repositoryService.createDeployment()
                .addZipInputStream(zipInputStream)
                .name("请求审批流程")
                .key("holidayKey")
                .deploy();
        System.out.println("流程名称："+deploy.getName());

    }
}

二:启动流程实例

    @Test
    //启动流程实例
    public void startProcessInstance() {
        RuntimeService runtimeService = processEngine.getRuntimeService();
        ProcessInstance processInstance = runtimeService.startProcessInstanceByKey("myProcess_1");
        System.out.println(processInstance.getName());
        System.out.println(processInstance.getDeploymentId());
        System.out.println(processInstance.getActivityId());
    }

三:流程定义的查看

 
            @Test
            public void getProDef(){
                //获取processEngine对象
                ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();
                //获取一个RepositoryService对象
                RepositoryService repositoryService = processEngine.getRepositoryService();
                //得到流程定义查看对象ProcessDefinitionQuery
                ProcessDefinitionQuery processDefinitionQuery = repositoryService.createProcessDefinitionQuery();
                //指定查看的流程   processDefinitionKey()指定流程定义的key值   orderByProcessDefinitionVersion根据流程定义版本号排序
                List<ProcessDefinition> holiday = processDefinitionQuery.processDefinitionKey("holiday").orderByProcessDefinitionVersion().desc().list();
                for (ProcessDefinition proDef:holiday) {
                    System.out.println("流程定义ID："+proDef.getId());
                    System.out.println("流程定义的名称："+proDef.getName());
                    System.out.println("流程定义的Key："+proDef.getKey());
                    System.out.println("流程定义的版本号："+proDef.getVersion());
                }
            }

 四:删除流程

    /**
     * 删除流程：
     * 假设在删除时，当前正在有该流程实例执行，那么会导致删除失败
     * 如果强制要求，则可以使用repositoryService.deleteDeployment("1",true); true代表级联删除
     */
    @Test
    public void deleteDeployment(){
        //获取processEngine对象
        ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();
        //获取一个RepositoryService对象
        RepositoryService repositoryService = processEngine.getRepositoryService();
        //删除流程
        repositoryService.deleteDeployment("32501",true);
    }

五:从数据库读取资源

 /**
     * 从数据中读取资源文件到本地
     */
    @Test
    public void getResource() throws IOException {
        //获取processEngine对象
        ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();
        //获取一个RepositoryService对象
        RepositoryService repositoryService = processEngine.getRepositoryService();
        //获取到流程查询对象
        ProcessDefinitionQuery processDefinitionQuery = repositoryService.createProcessDefinitionQuery();
        //获取到流程资源
        processDefinitionQuery.processDefinitionKey("myProcess_1");
        //获取单一结果
        ProcessDefinition processDefinition = processDefinitionQuery.singleResult();
        //流程部署的ID
        String deploymentId = processDefinition.getDeploymentId();
        //获取到bpmnResource
        InputStream bpmnStream = repositoryService.getResourceAsStream(deploymentId, processDefinition.getResourceName());
        //获取到png
        InputStream pngStream = repositoryService.getResourceAsStream(deploymentId, processDefinition.getDiagramResourceName());
        //构建输出流
        OutputStream bpmnOut = new FileOutputStream("F:\study\IDEAY2\MyTest\Active\Active\Day01\src\main\resources\" + processDefinition.getResourceName());
        OutputStream pngOut = new FileOutputStream("F:\study\IDEAY2\MyTest\Active\Active\Day01\src\main\resources\" + processDefinition.getDiagramResourceName());
        //将数据输出到磁盘当中
        IOUtils.copy(bpmnStream,bpmnOut);
        IOUtils.copy(pngStream,pngOut);
        //关流
        pngOut.close();
        bpmnOut.close();
        pngStream.close();
        bpmnStream.close();
    }

六:启动流程实例和业务系统关联

 /**
     * 启动流程实例和业务系统关联
     * 正常应该先添加数据到业务表当中，拿到当前添加数据的主键ID，通过启动流程实例，将主键ID交给BuessniessKkey
     * 代表和流程系统进行关联
     */
    @Test
    public void startInstance(){
        //获取processEngine对象
        ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();
        RuntimeService runtimeService = processEngine.getRuntimeService();
        //生成流程
        ProcessInstance holiday = runtimeService.startProcessInstanceByKey("myProcess_1","2");
        //获取一个TaskService对象
        TaskService taskService = processEngine.getTaskService();
        List<Task> list = taskService.createTaskQuery().taskAssignee("ty").processDefinitionKey("myProcess_1").list();
        //任务审批
        for (Task task:list){
            taskService.complete(task.getId());

        }
    } 

七:流程挂起

/**
     * 所有流程定义的挂起
     */
    @Test
    public void allSuspend(){
        //获取processEngine对象
        ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();
        //获取repositoryService对象
        RepositoryService repositoryService = processEngine.getRepositoryService();
        //获取流程定义
        ProcessDefinition holiday = repositoryService.createProcessDefinitionQuery().processDefinitionKey("myProcess_1").singleResult();
        //获取到当前流程定义是否为暂停状态   suspended方法为true代表为暂停   false就是运行的
        boolean suspended = holiday.isSuspended();
        if(suspended){
            repositoryService.activateProcessDefinitionById(holiday.getId(),true,null);
            System.out.println("该流程定义激活");
        }else{
            repositoryService.suspendProcessDefinitionById(holiday.getId(),true,null);
            System.out.println("该流程定义暂停");
        }
    }

八:单个流程的挂起

 /**
     * 单个流程实例的挂起
     */
    @Test
    public void singleSuspend(){
        //获取processEngine对象
        ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();
        //获取RuntimeService对象
        RuntimeService runtimeService = processEngine.getRuntimeService();
        ProcessInstance processInstance = runtimeService.createProcessInstanceQuery().processInstanceId("7501").singleResult();
        //获取到当前流程定义是否为暂停状态   suspended方法为true代表为暂停   false就是运行的
        boolean suspended = processInstance.isSuspended();
        if(suspended){
            runtimeService.activateProcessInstanceById("7501");
            System.out.println("xx的请假流程激活");
        }else{
            runtimeService.suspendProcessInstanceById("7501");
            System.out.println("xx的请假流程挂起");
        }
    }