Flowable初体验

package org.minos;
 
import junit.framework.TestCase;
import junit.framework.TestSuite;
import org.flowable.bpmn.model.BpmnModel;
import org.flowable.engine.*;
import org.flowable.engine.history.HistoricActivityInstance;
import org.flowable.engine.impl.cfg.StandaloneProcessEngineConfiguration;
import org.flowable.engine.repository.Deployment;
import org.flowable.engine.repository.ProcessDefinition;
import org.flowable.engine.runtime.Execution;
import org.flowable.engine.runtime.ProcessInstance;
import org.flowable.image.ProcessDiagramGenerator;
import org.flowable.task.api.Task;
import org.junit.Before;
import org.junit.Test;
 
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;
 
/**
 * Unit test for simple App.
 */
public class AppTest {
 
    private ProcessEngineConfiguration configuration;
 
    /**
     * 获取流程引擎对象
     */
    @Test
    public void testProcessEngine() {
        //获取ProcessEngineConfiguration对象
        ProcessEngineConfiguration configuration = new StandaloneProcessEngineConfiguration();
        //配置相关数据库的连接信息
        configuration.setJdbcDriver("com.mysql.cj.jdbc.Driver");
        configuration.setJdbcUsername("root");
        configuration.setJdbcPassword("123456");
        configuration.setJdbcUrl("jdbc:mysql://localhost:3306/flowable?serverTimezone=UTC");
        //如果书库中的表结构不存在就新建
        configuration.setDatabaseSchemaUpdate(ProcessEngineConfiguration.DB_SCHEMA_UPDATE_TRUE);
        //通过ProcessEngineConfiguration构建ProcessEngine对象
        ProcessEngine processEngine = configuration.buildProcessEngine();
    }
 
    ProcessEngineConfiguration configurati = null;
 
    @Before
    public void before() {
        //获取ProcessEngineConfiguration对象
        configuration = new StandaloneProcessEngineConfiguration();
        //配置相关数据库的连接信息
        configuration.setJdbcDriver("com.mysql.cj.jdbc.Driver");
        configuration.setJdbcUsername("root");
        configuration.setJdbcPassword("123456");
        configuration.setJdbcUrl("jdbc:mysql://localhost:3306/flowable?serverTimezone=UTC");
        configuration.setActivityFontName("宋体");
        configuration.setLabelFontName("宋体");
        configuration.setAnnotationFontName("宋体");
        //如果书库中的表结构不存在就新建
        configuration.setDatabaseSchemaUpdate(ProcessEngineConfiguration.DB_SCHEMA_UPDATE_TRUE);
    }
 
    /**
     * 流程部署
     */
    @Test
    public void testDeploy() {
        //1.获取ProcessEngine对象
        ProcessEngine processEngine = configuration.buildProcessEngine();
        //2、获取RepositoryService
        RepositoryService repositoryService = processEngine.getRepositoryService();
        //3.完成流程部署操作
        Deployment deployed = repositoryService.createDeployment()
                .addClasspathResource("demo.bpmn20.xml")
                .name("请假流程")
                .deploy();
 
        System.out.println("deployed.getId()=" + deployed.getId());
 
        System.out.println("deployed.getName()=" + deployed.getName());
    }
 
    /**
     * 查询流程定义信息
     */
    @Test
    public void testDeployQuery() {
        ProcessEngine processEngine = configuration.buildProcessEngine();
 
        RepositoryService repositoryService = processEngine.getRepositoryService();
 
        ProcessDefinition processDefinition = repositoryService.createProcessDefinitionQuery()
                .deploymentId("1")
                .singleResult();
 
        System.out.println("processDefinition.getId() = " + processDefinition.getId());
        System.out.println("processDefinition.getName() = " + processDefinition.getName());
        System.out.println("processDefinition.getDescription() = " + processDefinition.getDescription());
    }
 
    /**
     * 删除部署流程
     */
    @Test
    public void testDeleteDeploy() {
        ProcessEngine processEngine = configuration.buildProcessEngine();
 
        RepositoryService repositoryService = processEngine.getRepositoryService();
        //删除部署ID为1的流程，如果已经启动，删除失败
        //repositoryService.deleteDeployment("1");
        //删除部署ID为1的流程，如果已经启动，启动实例也删除
        repositoryService.deleteDeployment("2501", true);
    }
 
    /**
     * 启动流程实例
     */
    @Test
    public void testRunProcess() {
        ProcessEngine processEngine = configuration.buildProcessEngine();
        //获取RunTimeService
        RuntimeService runtimeService = processEngine.getRuntimeService();
        //构建流程变量
        Map<String, Object> variables = new HashMap<String, Object>();
        variables.put("employee", "zhangsan");
        variables.put("nrOfHolidays", 3);
        variables.put("desciption", "work hard");
        //启动流程实例
        ProcessInstance holidayRequest = runtimeService.startProcessInstanceByKey("holidayRequest", variables);
 
        System.out.println("holidayRequest.getProcessDefinitionId() = " + holidayRequest.getProcessDefinitionId());
        System.out.println("holidayRequest.getActivityId() = " + holidayRequest.getActivityId());
        System.out.println("holidayRequest.getId() = " + holidayRequest.getId());
    }
 
    /**
     * 查询任务
     */
    @Test
    public void testQueryProcess() {
        ProcessEngine processEngine = configuration.buildProcessEngine();
 
        TaskService taskService = processEngine.getTaskService();
 
        List<Task> list = taskService.createTaskQuery()
                .processDefinitionKey("holidayRequest")//指定查询的流程key
                .taskAssignee("zhangsan")//查询任务的处理人
                .list();
 
        for (Task task : list) {
            System.out.println("task.getProcessDefinitionId() = " + task.getProcessDefinitionId());
            System.out.println("task.getName() = " + task.getName());
            System.out.println("task.getAssignee() = " + task.getAssignee());
            System.out.println("task.getDescription() = " + task.getDescription());
            System.out.println("task.getId() = " + task.getId());
        }
    }
 
    /**
     * 完成当前任务
     */
 
    @Test
    public void testCompleteTask() {
        ProcessEngine processEngine = configuration.buildProcessEngine();
 
        TaskService taskService = processEngine.getTaskService();
 
        List<Task> list = taskService.createTaskQuery()
                .processDefinitionKey("holidayRequest")
                .taskAssignee("zhangsan")
                .list();
        //创建流程变量
        Map<String, Object> variables = new HashMap<String, Object>();
        variables.put("approved", false);
        for (Task task : list) {
            taskService.complete(task.getId(), variables);
        }
    }
 
    /**
     * 获取流程任务的历史数据
     */
    @Test
    public void testHistroy() {
        ProcessEngine processEngine = configuration.buildProcessEngine();
 
        HistoryService historyService = processEngine.getHistoryService();
 
        List<HistoricActivityInstance> list = historyService.createHistoricActivityInstanceQuery()
                .processDefinitionId("holidayRequest:1:7503")
                .finished() //查询的历史记录的状态已完成
                .orderByHistoricActivityInstanceEndTime().asc() //指定排序字段和顺序
                .list();
        for (HistoricActivityInstance item : list) {
            System.out.print("item.getActivityName() = " + item.getActivityName());
            System.out.print("item.getAssignee() = " + item.getAssignee());
            System.out.print("item.getActivityId() = " + item.getActivityId());
            System.out.println("item.getDurationInMillis() = " + item.getDurationInMillis() + "毫秒");
        }
    }
 
}