Activiti教程二

大家好，又见面了，我是你们的朋友全栈君。

一搭建环境

1.1 JDK 6+

1.2 Ant 1.8.1+

1.3 Eclipse 3.7+

1.4 Activiti -eclipse designer插件安装

1.4.1 先安装GEF插件

1.4.2 安装SVN插件

1.4.3安装Maven插件

1.4.4 最后安装Activiti -eclipse designer

二开始activiti 5.12.1的第一个demo

2.1 建立activiti-demo工程，选择Activiti Project

2.2 将activiti-demo工程的数据库整合为MySQL

2.3 设计activiti-demo工程的流程

以上详细描述参照Activiti 简易教程一 version5.10（http://blog.csdn.net/yangyi22/article/details/9225849）

测试类代码 DemoProcessTest.java

[java]
view plain
copy

package main.java;
import java.io.FileInputStream;
import java.util.List;
import org.activiti.engine.HistoryService;
import org.activiti.engine.ProcessEngine;
import org.activiti.engine.ProcessEngines;
import org.activiti.engine.RepositoryService;
import org.activiti.engine.RuntimeService;
import org.activiti.engine.TaskService;
import org.activiti.engine.history.HistoricProcessInstance;
import org.activiti.engine.runtime.ProcessInstance;
import org.activiti.engine.task.Task;
public class DemoProcessTest {
// diagrams实际路径
private static String realPath =
“D:\\Java~coding~site\\J2EE-IDE\\Workspace\\workspace[indigo-jee]” +
“\\activiti-512demo\\src\\main\\resources\\diagrams”;
public static void main(String[] args) throws Exception {
// 创建 Activiti流程引擎
//方式一自动寻找activiti.cfg.xml
ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();
//方式二指定加载activiti.cfg.xml
// ProcessEngine processEngine = ProcessEngineConfiguration
// .createProcessEngineConfigurationFromResource(“activiti.cfg.xml”)
// .buildProcessEngine();
// 取得 Activiti 服务
RepositoryService repositoryService = processEngine.getRepositoryService();
RuntimeService runtimeService = processEngine.getRuntimeService();
// 部署流程定义
repositoryService
.createDeployment()
.addInputStream(“DemoProcess.bpmn”,new FileInputStream(realPath + “\\DemoProcess.bpmn”))
.addInputStream(“DemoProcess.png”, new FileInputStream(realPath + “\\DemoProcess.png”))
.deploy();
// 启动流程实例
ProcessInstance instance = processEngine
.getRuntimeService().startProcessInstanceByKey(“DemoProcess”);
String procId = instance.getId();
System.out.println(“procId:”+ procId);
// 获得第一个任务
TaskService taskService = processEngine.getTaskService();
List<Task> tasks = taskService.createTaskQuery().taskDefinitionKey(“firstTask”).list();
for (Task task : tasks) {
System.out.println(“Following task is: taskID -“ +task.getId()+” taskName -“+ task.getName());
// 认领任务
taskService.claim(task.getId(), “testUser”);
}
// 查看testUser 现在是否能够获取到该任务
tasks = taskService.createTaskQuery().taskAssignee(“testUser”).list();
for (Task task : tasks) {
System.out.println(“Task for testUser: “ + task.getName());
// 完成任务
taskService.complete(task.getId());
}
System.out.println(“Number of tasks for testUser: “
+ taskService.createTaskQuery().taskAssignee(“testUser”).count());
// 获取并认领第二个任务
tasks = taskService.createTaskQuery().taskDefinitionKey(“secondTask”).list();
for (Task task : tasks) {
System.out.println(“Following task is : taskID -“ +task.getId()+” taskName -“+ task.getName());
taskService.claim(task.getId(), “testUser”);
}
//完成第二个任务结束结束流程
for (Task task : tasks) {
taskService.complete(task.getId());
}
// 核实流程是否结束
HistoryService historyService = processEngine.getHistoryService();
HistoricProcessInstance historicProcessInstance = historyService.createHistoricProcessInstanceQuery().processInstanceId(procId).singleResult();
System.out.println(“Process instance end time: “ + historicProcessInstance.getEndTime());
}
}