Activiti环境配置、项目搭建、与Spring集成、简单示例



概念

    WFMS（工作流管理系统）:http://baike.baidu.com/view/977667.htm

    WFMC（工作流管理联盟）:http://baike.baidu.com/view/2497858.htm

示例项目下载

    http://pan.baidu.com/s/1gd3iNfH

环境搭建：

    FBI WARNING 两个视频,屏幕录像专家录制，非病毒，本站愿意承担责任，下载完文件请先核对MD5。

    1.Eclipse配置Tomcat和部署WEB应用.exe（MD5:81c1dfb994ff5b2094ce0dac244da598）

    http://pan.baidu.com/s/1kTgb8PL

    2.Activiti项目搭建与Spring集成配置.exe（MD5:3debeec0a00dc061c782ca0cdcc97f7d）

    http://pan.baidu.com/s/1sjyKCY5

项目搭建：

    Maven项目POM

    <!-- Jar版本管理 -->    <properties>        <springframework>4.0.2.RELEASE</springframework>        <hibernate>4.3.4.Final</hibernate>        <mysql.connector>5.1.29</mysql.connector>        <c3p0>0.9.1.2</c3p0>        <log4j>1.2.17</log4j>        <activiti>5.15.1</activiti>        <jstl>1.2</jstl>    </properties>      <dependencies>        <!-- Spring web mvc -->        <dependency>            <groupId>org.springframework</groupId>            <artifactId>spring-webmvc</artifactId>            <version>${springframework}</version>        </dependency>        <!-- Spring framework 4中的orm包已经单独拿出来了，所以要和hibernate集成，需要此包 -->        <dependency>            <groupId>org.springframework</groupId>            <artifactId>spring-orm</artifactId>            <version>${springframework}</version>        </dependency>        <!-- 提供JMS，Freemarker,Quartz集成服务 -->        <dependency>            <groupId>org.springframework</groupId>            <artifactId>spring-context-support</artifactId>            <version>${springframework}</version>        </dependency>        <!-- Hibernate -->        <dependency>            <groupId>org.hibernate</groupId>            <artifactId>hibernate-core</artifactId>            <version>${hibernate}</version>        </dependency>        <!-- MySQL驱动 -->        <dependency>            <groupId>mysql</groupId>            <artifactId>mysql-connector-java</artifactId>            <version>${mysql.connector}</version>        </dependency>        <!-- 连接池 -->        <dependency>            <groupId>c3p0</groupId>            <artifactId>c3p0</artifactId>            <version>${c3p0}</version>        </dependency>        <!-- log4j -->        <dependency>            <groupId>log4j</groupId>            <artifactId>log4j</artifactId>            <version>${log4j}</version>        </dependency>        <!-- jstl -->        <dependency>            <groupId>jstl</groupId>            <artifactId>jstl</artifactId>            <version>${jstl}</version>        </dependency>        <!-- activiti依赖 -->        <dependency>            <groupId>org.activiti</groupId>            <artifactId>activiti-engine</artifactId>            <version>${activiti}</version>        </dependency>        <!-- activiti 与 Spring 集成 -->        <dependency>            <groupId>org.activiti</groupId>            <artifactId>activiti-spring</artifactId>            <version>${activiti}</version>        </dependency>         <!-- junit -->        <dependency>            <groupId>junit</groupId>            <artifactId>junit</artifactId>            <version>3.8.1</version>            <scope>test</scope>        </dependency>    </dependencies>

与Spring集成：

    activiti.cfg.xml   

<beans xmlns="http://www.springframework.org/schema/beans"        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"       xsi:schemaLocation="http://www.springframework.org/schema/beans   http://www.springframework.org/schema/beans/spring-beans.xsd"><!-- Activiti处理引擎的配置，交由Spring管理 -->  <bean id="processEngineConfiguration" class="org.activiti.spring.SpringProcessEngineConfiguration">          <!-- 配置数据源,和系统使用同一个数据源 -->          <property name="dataSource" ref="dataSource" />          <property name="databaseSchemaUpdate" value="true" />          <property name="jobExecutorActivate" value="false" />          <!-- 统一的事务管理 -->          <property name="transactionManager" ref="transactionManager" />          <property name="activityFontName"  value="宋体" />          <property name="labelFontName"  value="宋体" />  </bean>  <bean id="processEngine" class="org.activiti.spring.ProcessEngineFactoryBean">      <property name="processEngineConfiguration" ref="processEngineConfiguration" />  </bean> </beans>

activiti的API中，最终要的一个接口就是ProcessEngine‍‍,获取到ProcessEngine的实例，就获取了activiti体系中的所有api。重要的接口如下：

ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine(); RuntimeService runtimeService = processEngine.getRuntimeService();RepositoryService repositoryService = processEngine.getRepositoryService();TaskService taskService = processEngine.getTaskService();ManagementService managementService = processEngine.getManagementService();IdentityService identityService = processEngine.getIdentityService();HistoryService historyService = processEngine.getHistoryService();FormService formService = processEngine.getFormService();

    Activiti的服务框架如下

    

    ActivitiController代码

    

package org.xdemo.example.activiti.controller; import java.awt.image.BufferedImage;import java.io.IOException;import java.io.InputStream;import java.util.HashMap;import java.util.List;import java.util.Map; import javax.annotation.Resource;import javax.imageio.ImageIO;import javax.servlet.http.HttpServletResponse; import org.activiti.engine.ProcessEngine;import org.activiti.engine.RepositoryService;import org.activiti.engine.RuntimeService;import org.activiti.engine.TaskService;import org.activiti.engine.impl.cmd.GetDeploymentProcessDiagramCmd;import org.activiti.engine.impl.interceptor.Command;import org.activiti.engine.repository.ProcessDefinition;import org.activiti.engine.runtime.ProcessInstance;import org.activiti.engine.task.Task;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestMethod;import org.springframework.web.servlet.ModelAndView; @Controller@RequestMapping("/process")public class ActivitiController {     @Resource    ProcessEngine engine;     /**     * 列出所有流程模板     */    @RequestMapping(method = RequestMethod.GET)    public ModelAndView list(ModelAndView mav) {        mav.addObject("list", Util.list());        mav.setViewName("process/template");        return mav;    }     /**     * 部署流程     */    @RequestMapping("deploy")    public ModelAndView deploy(String processName, ModelAndView mav) {         RepositoryService service = engine.getRepositoryService();         if (null != processName)            service.createDeployment()                    .addClasspathResource("diagrams/" + processName).deploy();         List<ProcessDefinition> list = service.createProcessDefinitionQuery()                .list();         mav.addObject("list", list);        mav.setViewName("process/deployed");        return mav;    }     /**     * 已部署流程列表     */    @RequestMapping("deployed")    public ModelAndView deployed(ModelAndView mav) {         RepositoryService service = engine.getRepositoryService();         List<ProcessDefinition> list = service.createProcessDefinitionQuery()                .list();         mav.addObject("list", list);        mav.setViewName("process/deployed");         return mav;    }     /**     * 启动一个流程实例     */    @SuppressWarnings("unchecked")    @RequestMapping("start")    public ModelAndView start(String id, ModelAndView mav) {         RuntimeService service = engine.getRuntimeService();         service.startProcessInstanceById(id);         List<ProcessInstance> list = service.createProcessInstanceQuery()                .list();         mav.addObject("list", list);        mav.setViewName("process/started");         return mav;    }     /**     * 所有已启动流程实例     */    @RequestMapping("started")    public ModelAndView started(ModelAndView mav) {         RuntimeService service = engine.getRuntimeService();         List<ProcessInstance> list = service.createProcessInstanceQuery()                .list();         mav.addObject("list", list);        mav.setViewName("process/started");         return mav;    }         /**     * 进入任务列表      */    @RequestMapping("task")    public ModelAndView task(ModelAndView mav){        TaskService service=engine.getTaskService();        List<Task> list=service.createTaskQuery().list();        mav.addObject("list", list);        mav.setViewName("process/task");        return mav;    }         /**     *完成当前节点      */    @RequestMapping("complete")    public ModelAndView complete(ModelAndView mav,String id){                 TaskService service=engine.getTaskService();                 service.complete(id);                 return new ModelAndView("redirect:task");    }     /**     * 所有已启动流程实例     *      * @throws IOException     */    @RequestMapping("graphics")    public void graphics(String definitionId, String instanceId,            String taskId, ModelAndView mav, HttpServletResponse response)            throws IOException {                 response.setContentType("image/png");        Command<InputStream> cmd = null;         if (definitionId != null) {            cmd = new GetDeploymentProcessDiagramCmd(definitionId);        }         if (instanceId != null) {            cmd = new ProcessInstanceDiagramCmd(instanceId);        }         if (taskId != null) {            Task task = engine.getTaskService().createTaskQuery().taskId(taskId).singleResult();            cmd = new ProcessInstanceDiagramCmd(                    task.getProcessInstanceId());        }         if (cmd != null) {            InputStream is = engine.getManagementService().executeCommand(cmd);            int len = 0;            byte[] b = new byte[1024];            while ((len = is.read(b, 0, 1024)) != -1) {                response.getOutputStream().write(b, 0, len);            }        }    }}

示例：

    

<转载请注明来源: http://www.xdemo.org/spring-activiti-integration/ >