工作流——activiti
1.导入依赖
<!-- activiti工作流 --> <dependency> <groupId>org.activiti</groupId> <artifactId>activiti-engine</artifactId> <version>5.14</version> </dependency> <dependency> <groupId>org.activiti</groupId> <artifactId>activiti-spring</artifactId> <version>5.14</version> </dependency>
2.配置xml
a.新建spring-activiti.xml
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:util="http://www.springframework.org/schema/util" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd"> <bean id="processEngineConfiguration" class="org.activiti.spring.SpringProcessEngineConfiguration"> <property name="activityFontName" value="微软雅黑"></property> <!-- 引入druid数据源 --> <property name="dataSource" ref="dataSource"></property> <!-- 引入spring事务管理 --> <property name="transactionManager" ref="txManager"></property> <!-- 建表策略 --> <property name="databaseSchemaUpdate" value="true"></property> <!-- 历史控制级别 --> <property name="history" value="full"></property> <!-- 自动部署 --> <property name="deploymentResources"> <list> <value>classpath*:MyProcess.bpmn</value> </list> </property> </bean> <bean id="processEngineFactoryBean" class="org.activiti.spring.ProcessEngineFactoryBean"> <property name="processEngineConfiguration" ref="processEngineConfiguration"></property> </bean> <bean id="repositoryService" factory-bean="processEngineFactoryBean" factory-method="getRepositoryService"></bean> <bean id="runtimeService" factory-bean="processEngineFactoryBean" factory-method="getRuntimeService"></bean> <bean id="taskService" factory-bean="processEngineFactoryBean" factory-method="getTaskService"></bean> <bean id="historyService" factory-bean="processEngineFactoryBean" factory-method="getHistoryService"></bean> <bean id="formService" factory-bean="processEngineFactoryBean" factory-method="getFormService"></bean> <bean id="identityService" factory-bean="processEngineFactoryBean" factory-method="getIdentityService"></bean> <bean id="managementService" factory-bean="processEngineFactoryBean" factory-method="getManagementService"></bean> </beans>
注意：其中 dataSource 和 txManager 为 spring-mybatis.xml 中配置的 “数据源(数据库连接池)” 和 “事务管理”，所以不能在web.xml中引入，而应在spring-mybatis.xml中引入
b.在 spring-mybatis.xml 引入 spring-activiti.xml 配置
<!-- 导入activiti工作流配置 --> <import resource="spring-activiti.xml"/>
3.绘制流程图
a.eclipse 中安装插件： help —> Install New Software —> Add
Name：activiti
Location：http://activiti.org/designer/update/
b.新建流程图：新建 MyProcess.bpmn
4.使用
a.在Service中使用
@Service public class ProcessService { public final static String PROCESS_ID = "myProcess"; //流程储存服务组件 @Resource RepositoryService repositoryService; //运行时服务组件 @Resource RuntimeService runtimeService; //流程中的任务TASK组件 @Resource TaskService taskService; //部署流程（若xml已配置自动部署，则不需要此方法） public void deployProcess(){ // 部署流程，只要是符合BPMN2规范的XML文件，理论上都可以被ACTIVITI部署 repositoryService.createDeployment().addClasspathResource("MyProcess.bpmn").deploy(); } //启动流程 public void startProcess(){ // 开启流程，参数是流程的ID runtimeService.startProcessInstanceByKey(PROCESS_ID); } //根据Assignee查询task public List<Task> findTaskByAssignee(String assignee){ List<Task> taskList = taskService.createTaskQuery(). taskAssignee(assignee). //根据办理人查询 orderByTaskCreateTime().asc(). //根据创建时间升序排列 list(); //返回列表 for(Task task : taskList){ System.out.println("任务ID:"+task.getId()); System.out.println("任务名称:"+task.getName()); System.out.println("任务的创建时间:"+task.getCreateTime()); System.out.println("任务的办理人:"+task.getAssignee()); System.out.println("流程实例ID："+task.getProcessInstanceId()); System.out.println("执行对象ID:"+task.getExecutionId()); System.out.println("流程定义ID:"+task.getProcessDefinitionId()); System.out.println("========================================="); } return taskList; } //完成任务 //variables 为流程变量，对应bpmn 中 Condition 设置的 ${message=='不重要'} public void completeProcess(String taskId, Map<String, Object> variables){ taskService.complete(taskId, variables); System.out.println("完成任务ID："+taskId); } }
b.在Controller中测试
//提交流程 @RequestMapping("submitProcess") public @ResponseBody String submitProcess(HttpServletRequest request, HttpServletResponse response){ processService.startProcess(); return "提交流程成功"; } //部长审批 @RequestMapping("departmentProcess") public @ResponseBody String departmentProcess(HttpServletRequest request, HttpServletResponse response){ List<Task> taskIdList = processService.findTaskByAssignee("department"); for(Task task : taskIdList){ String taskId = task.getId(); processService.completeProcess(taskId, null); } return "部长审批成功"; } //副总审批 @RequestMapping("managerProcess") public @ResponseBody String managerProcess(HttpServletRequest request, HttpServletResponse response){ List<Task> taskIdList = processService.findTaskByAssignee("manager"); for(Task task : taskIdList){ String taskId = task.getId(); processService.completeProcess(taskId, null); } return "副总审批成功"; }
