5、Activiti 流程变量 Variables

public class ProcessVariablesTest { ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();
/** * 部署流程定义 * this.getClass().getClassLoader().getResourceAsStream("diagrams/variables.bpmn") 从classpath根目录下加载文件 * this.getClass().getResourceAsStream("variables.bpmn") 从但前包下加载指定文件 * this.getClass().getResourceAsStream("/diagrams/variables.bpmn") 从classpath根目录下加载文件 */ @Test public void depolymentProcessDefinition_InputStream() { InputStream inbpmn = this.getClass().getClassLoader().getResourceAsStream("diagrams/variables.bpmn"); InputStream inpng = this.getClass().getResourceAsStream("/diagrams/variables.png"); Deployment deploy = processEngine.getRepositoryService() .createDeployment() .name("变量流程") .addInputStream("variables.bpmn", inbpmn) .addInputStream("variables.png", inpng) .deploy();
System.out.println(deploy.getId()); System.out.println(deploy.getName()); }
/** * 启动流程 */ @Test public void startProcessDefinition() { String key = "variables"; ProcessInstance processInstance = processEngine.getRuntimeService() .startProcessInstanceByKey(key);
System.out.println(processInstance.getId()); System.out.println(processInstance.getProcessDefinitionId()); System.out.println(processInstance.getProcessDefinitionKey()); System.out.println(processInstance.getProcessDefinitionName()); System.out.println(processInstance.getProcessInstanceId()); }
/** * 完成任务 */ @Test public void complteTask() { String taskId = "65002"; processEngine.getTaskService().complete(taskId); System.out.println("任务完成"); }
/** * 设置变量 */ @Test public void setVariables() { String taskId = "70004"; TaskService taskService = processEngine.getTaskService(); // taskService.setVariableLocal(taskId, "请假天数", 2); // 与任务ID绑定，绑定任务ID，存储变量的表和 历史表不会覆盖 // taskService.setVariable(taskId, "请假原因", "探亲111"); // taskService.setVariable(taskId, "请假日期", new Date());
/** * 实体类要求 * 1、序列化 implements Serializable * 2、添加固定版本信息 private static final long serialVersionUID = -6638629184599698536L; * 不序列化 无法设置 * 不添加固定版本信息，如果实体类属性变化获取时出现异常 */ Hostiry s = new Hostiry(); s.setDate(new Date()); s.setDays(4); s.setParson("吃饭");
taskService.setVariableLocal(taskId, "请假信息", s); }
/** * 获取变量 */ @Test public void getVariablse() { TaskService taskService = processEngine.getTaskService(); String taskId = "47504"; // Date date = (Date) taskService.getVariable(taskId, "请假日期"); // Integer days = (Integer) taskService.getVariable(taskId, "请假天数"); // String reason = (String) taskService.getVariable(taskId, "请假原因"); // // System.out.println(date); // System.out.println(days); // System.out.println(reason);
/** * 实体类 * */ Hostiry h = (Hostiry) taskService.getVariable(taskId, "请假信息"); System.out.println(h.getParson()); System.out.println(h.getDays()); System.out.println(h.getDate()); }
/** * 模拟设置流程变量设置和获取 */ public void setAndGetVariables() { RuntimeService runtimeService = processEngine.getRuntimeService(); TaskService taskService = processEngine.getTaskService(); /**设置流程变量**/ // runtimeService.setVariable(executionId, variableName, value); // 执行对象ID， 变量名称， 变量值 // runtimeService.setVariables(executionId, map); // 执行对象ID 多个变量
// taskService.setVariable(taskId, variableName, value); // 任务ID，变量名称，变量值 // taskService.setVariables(taskId, map); // 任务ID，多个变量
// runtimeService.startProcessInstanceByKey(processDefinitionKey, map); // 启动流程实例同时设置变量 // taskService.complete(taskId, map); // 完成任务是设置变量
// runtimeService.getVariable(executionId, variableName) // 执行对象ID，变量名 // Map<String, Object> map = runtimeService.getVariables(executionId); // 执行对象ID获取所有变量 // Map<String, Object> map = runtimeService.getVariables(executionId, variableNames) // 执行对象ID，变量名称集合
// taskService.getVariable(taskId, variableName) // 任务ID，变量名 // Map<String, Object> map = taskService.getVariables(taskId); // 任务ID获取所有变量 // Map<String, Object> map = taskService.getVariables(taskId, variableNames) // 任务ID，变量名称集合 }
/** * 查询历史流程变量信息 */ @Test public void findHistoryVariables() { String taskId = "70004"; List<HistoricVariableInstance> list = processEngine.getHistoryService() .createHistoricVariableInstanceQuery() .taskId(taskId) .list();
if (list != null && !list.isEmpty()) { for (HistoricVariableInstance h : list) { Hostiry s = (Hostiry) h.getValue(); System.out.println(h.getTaskId() + " " + h.getVariableName() + " " + s.getDays() + " " + s.getParson()); } } } }