Activiti工作流学习笔记入门（五）——流程变量

末蓝、 2022-04-16 02:00 242阅读 0赞

package com.java1234.activiti.variable;
    
    
    import java.util.Date;
    import java.util.HashMap;
    import java.util.List;
    import java.util.Map;
    
    import org.activiti.engine.ProcessEngine;
    import org.activiti.engine.ProcessEngines;
    import org.activiti.engine.TaskService;
    import org.activiti.engine.repository.Deployment;
    import org.activiti.engine.runtime.ProcessInstance;
    import org.activiti.engine.task.Task;
    import org.junit.Test;
    
    import com.java1234.model.Student;
    
    /**
     * 流程变量测试
     * @author user
     *
     */
    public class VariableTest {
    
    	/**
    	 * 获取默认流程引擎实例，会自动读取activiti.cfg.xml文件
    	 */
    	private ProcessEngine processEngine=ProcessEngines.getDefaultProcessEngine();
    	
    	/**
    	 * 部署流程定义
    	 */
    	@Test
    	public void deploy(){
    		Deployment deployment=processEngine.getRepositoryService() // 获取部署相关Service
    				.createDeployment() // 创建部署
    				.addClasspathResource("diagrams/StudentLeaveProcess.bpmn") // 加载资源文件
    				.addClasspathResource("diagrams/StudentLeaveProcess.png") // 加载资源文件
    				.name("学生请假流程") // 流程名称
    				.deploy(); // 部署
    		System.out.println("流程部署ID:"+deployment.getId()); 
    		System.out.println("流程部署Name:"+deployment.getName());
    	}
    	
    	/**
    	 * 启动流程实例
    	 */
    	@Test
    	public void start(){
    		ProcessInstance pi=processEngine.getRuntimeService() // 运行时Service
    			.startProcessInstanceByKey("studentLevaeProcess"); // 流程定义表的KEY字段值
    		System.out.println("流程实例ID:"+pi.getId());
    		System.out.println("流程定义ID:"+pi.getProcessDefinitionId()); 
    	}
    	
    	
    	/**
    	 * 查看任务
    	 */
    	@Test
    	public void findTask(){
    		List<Task> taskList=processEngine.getTaskService() // 任务相关Service
    			.createTaskQuery() // 创建任务查询
    			.taskAssignee("李四") // 指定某个人
    			.list();
    		for(Task task:taskList){
    			System.out.println("任务ID:"+task.getId()); 
    			System.out.println("任务名称:"+task.getName());
    			System.out.println("任务创建时间:"+task.getCreateTime());
    			System.out.println("任务委派人:"+task.getAssignee());
    			System.out.println("流程实例ID:"+task.getProcessInstanceId());
    		}
    	}
    	
    	
    	/**
    	 * 完成任务
    	 */
    	@Test
    	public void completeTask(){
    		processEngine.getTaskService() // 任务相关Service
    			.complete("80002");
    	}
    	
    	/**
    	 * 设置流程变量数据
    	 */
    	@Test
    	public void setVariableValues(){
    		TaskService taskService=processEngine.getTaskService(); // 任务Service
    		String taskId="72504";
    		taskService.setVariable(taskId, "days", 2);
    		// taskService.setVariable(taskId, "date", new Date());
    		taskService.setVariableLocal(taskId,"date", new Date());
    		taskService.setVariable(taskId, "reason", "发烧");
    		Student student=new Student();
    		student.setId(1);
    		student.setName("张三");
    		taskService.setVariable(taskId, "student", student); // 存序列化对象
    	}
    	
    	/**
    	 * 获取流程变量数据
    	 */
    	@Test
    	public void getVariableValues(){
    		TaskService taskService=processEngine.getTaskService(); // 任务Service
    		String taskId="80002";
    		Integer days=(Integer) taskService.getVariable(taskId, "days");
    		// Date date=(Date) taskService.getVariable(taskId, "date");
    		Date date=(Date) taskService.getVariableLocal(taskId, "date");
    		String reason=(String) taskService.getVariable(taskId, "reason");
    		Student student=(Student) taskService.getVariable(taskId, "student"); 
    		System.out.println("请假天数："+days);
    		System.out.println("请假日期："+date);
    		System.out.println("请假原因："+reason);
    		System.out.println("请假对象："+student.getId()+","+student.getName());
    	}
    	
    	
    	
    	/**
    	 * 设置流程变量数据
    	 */
    	@Test
    	public void setVariableValues2(){
    		TaskService taskService=processEngine.getTaskService(); // 任务Service
    		String taskId="60004";
    		Student student=new Student();
    		student.setId(1);
    		student.setName("张三");
    
    		Map<String, Object> variables=new HashMap<String,Object>();
    		variables.put("days", 2);
    		variables.put("date", new Date());
    		variables.put("reason", "发烧");
    		variables.put("student", student);
    		taskService.setVariables(taskId, variables);
    	}
    	
    	/**
    	 * 获取流程变量数据
    	 */
    	@Test
    	public void getVariableValues2(){
    		TaskService taskService=processEngine.getTaskService(); // 任务Service
    		String taskId="65002";
    		Map<String,Object> variables=taskService.getVariables(taskId);
    		Integer days=(Integer) variables.get("days");
    		Date date=(Date) variables.get("date");
    		String reason=(String) variables.get("reason");
    		Student student=(Student)variables.get("student"); 
    		System.out.println("请假天数："+days);
    		System.out.println("请假日期："+date);
    		System.out.println("请假原因："+reason);
    		System.out.println("请假对象："+student.getId()+","+student.getName());
    	}
    
    }

**设置任务流程变量**

@Test  
    public void setVariableValues()\{

TaskService taskService=processEngine.getTaskService();

**设置执行对象变量**

@Test  
    public void setVariableValues()\{  
        RuntimeService runtimeService=processEngine.getRuntimeService(); // 任务Service  
        String executionId="90001";  
        runtimeService.setVariable(executionId, "days", 2);  
        runtimeService.setVariable(executionId, "date", new Date());  
        runtimeService.setVariable(executionId, "reason", "发烧");  
        Student student=new Student();  
        student.setId(1);  
        student.setName("张三");  
        runtimeService.setVariable(executionId, "student", student); // 存序列化对象  
    \}

**启动流程实设置流程变量**

@Test  
    public void start()\{  
        Student student=new Student();  
        student.setId(1);  
        student.setName("张三");

Map<String, Object> variables=new HashMap<String,Object>();  
        variables.put("days", 2);  
        variables.put("date", new Date());  
        variables.put("reason", "发烧");  
        variables.put("student", student);  
          
        ProcessInstance pi=processEngine.getRuntimeService() // 运行时Service  
            .startProcessInstanceByKey("studentLevaeProcess", variables); // 启动流程的时候，设置流程变量

System.out.println("流程实例ID:"+pi.getId());  
        System.out.println("流程定义ID:"+pi.getProcessDefinitionId());  
    \}