activiti自定义流程之Spring整合activiti-modeler实例（二）：创建流程模型

1.maven导包，这里就没有什么多的好说了，直接代码：

 <dependencies>
     <dependency>
       <groupId>junit</groupId>
       <artifactId>junit</artifactId>
       <version>4.11</version>
     </dependency>
     <dependency>
         <groupId>org.springframework</groupId>
         <artifactId>spring-beans</artifactId>
         <version>4.0.9.RELEASE</version>
     </dependency>
     <dependency>
         <groupId>org.springframework</groupId>
         <artifactId>spring-core</artifactId>
         <version>4.0.9.RELEASE</version>
     </dependency>
     <dependency>
         <groupId>org.springframework</groupId>
         <artifactId>spring-aop</artifactId>
         <version>4.0.9.RELEASE</version>
     </dependency>
     <dependency>
         <groupId>org.springframework</groupId>
         <artifactId>spring-context</artifactId>
         <version>4.0.9.RELEASE</version>
     </dependency>
     <dependency>
         <groupId>org.springframework</groupId>
         <artifactId>spring-webmvc</artifactId>
         <version>4.0.9.RELEASE</version>
     </dependency>
     <dependency>
         <groupId>org.springframework</groupId>
         <artifactId>spring-web</artifactId>
         <version>4.0.9.RELEASE</version>
     </dependency>
     <dependency>
         <groupId>org.springframework</groupId>
         <artifactId>spring-aspects</artifactId>
         <version>4.0.9.RELEASE</version>
     </dependency>
     <dependency>
         <groupId>org.springframework</groupId>
         <artifactId>spring-expression</artifactId>
         <version>4.0.9.RELEASE</version>
     </dependency>
     <dependency>
         <groupId>org.springframework</groupId>
         <artifactId>spring-tx</artifactId>
         <version>4.0.9.RELEASE</version>
     </dependency>
     <dependency>
         <groupId>javax.servlet</groupId>
         <artifactId>javax.servlet-api</artifactId>
         <version>3.1.0</version>
     </dependency>
     <dependency>
         <groupId>com.fasterxml.jackson.core</groupId>
         <artifactId>jackson-annotations</artifactId>
         <version>2.2.3</version>
     </dependency>
     <dependency>
         <groupId>com.fasterxml.jackson.core</groupId>
         <artifactId>jackson-core</artifactId>
         <version>2.2.3</version>
     </dependency>
     <dependency>
         <groupId>com.fasterxml.jackson.core</groupId>
         <artifactId>jackson-databind</artifactId>
         <version>2.2.3</version>
     </dependency>
     <dependency>
         <groupId>org.activiti</groupId>
         <artifactId>activiti-modeler</artifactId>
         <version>5.16</version>
     </dependency>
     <dependency>
         <groupId>org.activiti</groupId>
         <artifactId>activiti-engine</artifactId>
         <version>5.16</version>
     </dependency>
     <dependency>
         <groupId>org.activiti</groupId>
         <artifactId>activiti-explorer</artifactId>
         <version>5.16</version>
     </dependency>
     <dependency>
         <groupId>org.activiti</groupId>
         <artifactId>activiti-rest</artifactId>
         <version>5.16</version>
     </dependency>
     <dependency>
         <groupId>org.springframework</groupId>
         <artifactId>spring-context-support</artifactId>
         <version>4.0.9.RELEASE</version>
     </dependency>
     <dependency>
         <groupId>mysql</groupId>
         <artifactId>mysql-connector-java</artifactId>
         <version>5.1.34</version>
     </dependency>

     <dependency>
         <groupId>org.activiti</groupId>
         <artifactId>activiti-spring</artifactId>
         <version>5.16</version>
     </dependency>
     <dependency>
         <groupId>org.springframework</groupId>
         <artifactId>spring-jdbc</artifactId>
         <version>4.0.9.RELEASE</version>
     </dependency>
     <dependency>
         <groupId>org.springframework</groupId>
         <artifactId>spring-test</artifactId>
         <version>4.0.9.RELEASE</version>
     </dependency>
     <dependency>
         <groupId>org.activiti</groupId>
         <artifactId>activiti-bpmn-converter</artifactId>
         <version>5.16</version>
     </dependency>
     <dependency>
         <groupId>org.codehaus.jackson</groupId>
         <artifactId>jackson-core-asl</artifactId>
         <version>1.9.11</version>
     </dependency>
     <dependency>
         <groupId>org.codehaus.jackson</groupId>
         <artifactId>jackson-mapper-asl</artifactId>
         <version>1.9.11</version>
     </dependency>
   </dependencies>

2.基础配置：web.xml，这个也主要是spring相关的东西，不多说了:

 <?xml version="1.0" encoding="UTF-8"?>
 <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
     xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
     id="WebApp_ID" version="2.5">
     <filter>
         <description>字符集过滤器</description>
         <filter-name>encodingFilter</filter-name>
         <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
         <init-param>
             <description>字符集编码</description>
             <param-name>encoding</param-name>
             <param-value>UTF-8</param-value>
         </init-param>
     </filter>
     <filter-mapping>
         <filter-name>encodingFilter</filter-name>
         <url-pattern>/*</url-pattern>
     </filter-mapping>

     <servlet>
     <servlet-name>RestletServlet</servlet-name>
     <servlet-class>org.restlet.ext.servlet.ServerServlet</servlet-class>
     <init-param>
       <param-name>org.restlet.application</param-name>
       <param-value>org.activiti.rest.editor.application.ModelerRestApplication</param-value>
     </init-param>
   </servlet>
   <servlet-mapping>
     <servlet-name>RestletServlet</servlet-name>
     <url-pattern>/service/*</url-pattern>
   </servlet-mapping>


     <servlet>
         <servlet-name>springMVC</servlet-name>
         <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
         <init-param>
             <param-name>contextConfigLocation</param-name>
             <param-value>classpath:spring.xml</param-value>
         </init-param>
     </servlet>
     <servlet-mapping>
         <servlet-name>springMVC</servlet-name>
         <url-pattern>*.do</url-pattern>
     </servlet-mapping>
     <welcome-file-list>
         <welcome-file>activiti.html</welcome-file>
         <welcome-file>activiti.htm</welcome-file>
         <welcome-file>activiti.jsp</welcome-file>
         <welcome-file>default.html</welcome-file>
         <welcome-file>default.htm</welcome-file>
         <welcome-file>default.jsp</welcome-file>
     </welcome-file-list>
 </web-app>

3.基础配置spring.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:mvc="http://www.springframework.org/schema/mvc"
     xsi:schemaLocation="
         http://www.springframework.org/schema/beans
         http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
         http://www.springframework.org/schema/context
         http://www.springframework.org/schema/context/spring-context-3.0.xsd
         http://www.springframework.org/schema/mvc
         http://www.springframework.org/schema/mvc/spring-mvc.xsd">

     <context:annotation-config />
     <mvc:annotation-driven />
     <context:component-scan base-package="controllers" />
     <bean id="dataSource" class="org.springframework.jdbc.datasource.SimpleDriverDataSource">

        <property name="driverClass" value="com.mysql.jdbc.Driver"></property>
        <property name="url" value="jdbc:mysql://192.168.0.201:3306/testtu?useUnicode=true&characterEncoding=utf8" ></property>
        <property name="username" value="root" ></property>
        <property name="password" value="123456" ></property>
     </bean>

     <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"></property>
     </bean>

     <bean id="processEngineConfiguration" class="org.activiti.spring.SpringProcessEngineConfiguration">
         <property name="dataSource" ref="dataSource" />
         <property name="databaseSchemaUpdate" value="true" />
         <property name="jobExecutorActivate" value="false"/>
         <property name="history" value="full"/>
         <property name="transactionManager" ref="transactionManager" />
         <!-- 配置事务管理器，统一事务 -->

         <!-- 设置建表策略，如果没有表，自动创建表 -->
     </bean>
     <!-- 创建流程引擎对象 -->
     <bean id="processEngine" class="org.activiti.spring.ProcessEngineFactoryBean">
         <property name="processEngineConfiguration" ref="processEngineConfiguration" />
     </bean>

     <!-- 由流程引擎对象，提供的方法，创建项目中使用的Activiti工作流的Service -->
     <bean id="repositoryService" factory-bean="processEngine" factory-method="getRepositoryService" />
     <bean id="runtimeService" factory-bean="processEngine" factory-method="getRuntimeService" />
     <bean id="taskService" factory-bean="processEngine" factory-method="getTaskService" />
     <bean id="historyService" factory-bean="processEngine" factory-method="getHistoryService" />
     <bean id="formService" factory-bean="processEngine" factory-method="getFormService" />

     <!-- 避免IE执行AJAX时,返回JSON出现下载文件 -->
     <bean id="mappingJacksonHttpMessageConverter"
         class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
         <property name="supportedMediaTypes">
             <list>
                 <value>text/html;charset=utf-8</value>
             </list>
         </property>
     </bean>

     <!-- 启动Spring MVC的注解功能，完成请求和注解POJO的映射 -->
     <bean
         class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
         <property name="messageConverters">
             <list>
                 <ref bean="mappingJacksonHttpMessageConverter" /><!-- json转换器 -->
             </list>
         </property>
     </bean>

 </beans>

4.模型实体类：

 package model;

 import java.util.Date;

 public class ActivitiModel {
     private String id;
     private String name;
     private String key;
     private String description;
     private Date createTime;
     private Date lastUpdateTime;
     private int version;

     public String getId() {
         return id;
     }

     public void setId(String id) {
         this.id = id;
     }

     public Date getCreateTime() {
         return createTime;
     }

     public void setCreateTime(Date createTime) {
         this.createTime = createTime;
     }

     public Date getLastUpdateTime() {
         return lastUpdateTime;
     }

     public void setLastUpdateTime(Date lastUpdateTime) {
         this.lastUpdateTime = lastUpdateTime;
     }

     public int getVersion() {
         return version;
     }

     public void setVersion(int version) {
         this.version = version;
     }

     public String getName() {
         return name;
     }

     public void setName(String name) {
         this.name = name;
     }

     public String getKey() {
         return key;
     }

     public void setKey(String key) {
         this.key = key;
     }

     public String getDescription() {
         return description;
     }

     public void setDescription(String description) {
         this.description = description;
     }

     @Override
     public String toString() {
         return "ActivitiModel [id=" + id + ", name=" + name + ", key=" + key
                 + ", description=" + description + ", createTime=" + createTime
                 + ", lastUpdateTime=" + lastUpdateTime + ", version=" + version
                 + "]";
     }

 }

5.后台业务代码，这里最后的操作是把跳转到acitiviti-modeler流程图设计界面的路径返回到了前端，然后让前端再跳转到流程图设计界面。

在我操作过程中，必须这样做才能实现设想的结果，因为我的前端使用的是angular js，页面上的路由跳转也都是由angular ui来控制，所以像第一篇spring整合activiti-modeler中那样从后台直接重定向的话就没有任何反应：

 /**
      * 创建模型
      *
      * @author：tuzongxun
      * @Title: create
      * @param @param activiti
      * @param @param request
      * @param @param response
      * @param @return
      * @return Object
      * @date Mar 17, 2016 12:30:29 PM
      * @throws
      */
     @RequestMapping(value = "/create.do", method = RequestMethod.POST, produces = "application/json;charset=utf-8")
     @ResponseBody
     public Object create(@RequestBody ActivitiModel activiti,
             HttpServletRequest request, HttpServletResponse response) {
         Map<String, String> map = new HashMap<String, String>();
         Boolean isLogin = this.isLogin(request);
         if (isLogin) {
             Model newModel = repositoryService.newModel();
             try {

                 ObjectMapper objectMapper = new ObjectMapper();
                 ObjectNode modelObjectNode = objectMapper.createObjectNode();
                 modelObjectNode.put(ModelDataJsonConstants.MODEL_NAME,
                         activiti.getName());
                 modelObjectNode.put(ModelDataJsonConstants.MODEL_REVISION, 1);
                 modelObjectNode.put(ModelDataJsonConstants.MODEL_DESCRIPTION,
                         StringUtils.defaultString(activiti.getDescription()));
                 newModel.setMetaInfo(modelObjectNode.toString());
                 newModel.setName(activiti.getName());
                 newModel.setKey(StringUtils.defaultString(activiti.getKey()));
                 repositoryService.saveModel(newModel);
                 ObjectNode editorNode = objectMapper.createObjectNode();
                 editorNode.put("id", "canvas");
                 editorNode.put("resourceId", "canvas");
                 ObjectNode stencilSetNode = objectMapper.createObjectNode();
                 stencilSetNode.put("namespace",
                         "http://b3mn.org/stencilset/bpmn2.0#");
                 editorNode.put("stencilset", stencilSetNode);
                 repositoryService.addModelEditorSource(newModel.getId(),
                         editorNode.toString().getBytes("utf-8"));
             } catch (Exception e) {
                 e.getStackTrace();
             }
             // response.sendRedirect(request.getContextPath() +
             // "/service/editor?id="
             // + newModel.getId());
             map.put("isLogin", "yes");
             map.put("userName",
                     (String) request.getSession().getAttribute("userName"));
             map.put("path", "/service/editor?id=");
             map.put("modelId", newModel.getId());
         } else {
             map.put("isLogin", "no");
         }
         return map;
     }

6.angular js前台代码，路由控制页面跳转：

  （1）.app.js:

       

 $stateProvider
     .state('create', {
     url: "/create",
     views: {
        'view': {
         templateUrl: 'activi_views/create.html',
         controller: 'createCtr'
        }
     }
    });

   (2).createCtr.js，angular js中的控制器，和后台交互，按我们公司前端现在的标准做法，应该还要服务层service，但是我运用还不太熟练，就暂且都放在controller中了:

 

 angular.module('activitiApp')
 .controller('createCtr', ['$rootScope','$scope','$http','$location','$state', function($rootScope,$scope,$http,$location,$state){
     //创建模型
     $http.post("createFlush.do").success(function(result){
         if(result.isLogin==="yes"){
             $rootScope.userName=result.userName;
         }else{
             $location.path("/login");
         }
     });
     $scope.createTo=function(activiti){
         //向后台提交数据
       $http.post("./create.do",activiti,{headers:'Content-Type:application/json'}).success(function(createResult){
           console.log(createResult);
           $location.path("/modelList");
         window.open("http://localhost:8080/activitiTest1"+createResult.path+createResult.modelId);
       });

     }

 }])

  (3).index.html:

 <!DOCTYPE html>
 <html ng-app="activitiApp">
 <head>
   <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
   <link href="./activi_css/activi.css" rel="stylesheet"/>
   <link href="css/bootstrap/css/bootstrap.css?2023" rel="stylesheet" type="text/css" />
   <link href="css/site.css?2023" rel="stylesheet" type="text/css" />
   <script type="text/javascript">
         var _root='http://form/index.php?s=/',_controller = 'index';
   </script>
   <script src="./angular-1.4.0-rc.2/angular.js"></script>
   <script src='./angular-1.4.0-rc.2/angular-ui-router.js'></script>
   <script src='./activi_js/app.js'></script>
   <script src='./activi_js/createCtr.js'></script>
   <script src='./activi_js/modelCtr.js'></script>
   <script src='./activi_js/processCtr.js'></script>
   <script src='./activi_js/taskCtr.js'></script>
   <script src='./activi_js/loginCtr.js'></script>
   <script src='./activi_js/hisTaskCtr.js'></script>
   <script src='./activi_js/startProcessCtr.js'></script>
   <script src='./activi_js/completeTaskCtr.js'></script>
 </head>
 <body style="width:100%;height:300px;margin:0;background-color:#fff">
  <div style="height:70px;width:100%;border:1px solid #ccf">
     <img id="rdiv" src="./images/activiti.png" style="width:30%;height:98%"/>
      <a href="script:;" ng-show="userName!=undefined" style="margin-right:10px;float:right;margin-top:25px;" ng-click="logOut();">
      [退出登陆]
     </a>
     <font ng-show="userName!=undefined" style="margin-right:10px;float:right;margin-top:25px;">当前登陆用户：{{userName}}</font>
  </div>
  <div style="width:100%;position: absolute;height:auto">
  <div style="height:580px;width:12%;font-size:36px;position:relative;float:left;border:1px solid #ccf" ng-show="userName!=undefined">
     <table style="width:100%;text-align:center;margin-top:0px" cellSpacing="5px" cellPadding="0px">
       <tr>
          <td style="background-color:#caf;"><a href="#/create">创建模型</a></td>
       </tr>
       <tr>
          <td style="background-color:#ccf;"> <a href="#/modelList">模型列表</a></td>
       </tr>
       <tr>
          <td style="background-color:#cef;"><a href="#/processList">流程列表</a></td>
       </tr>
       <tr>
          <td style="background-color:#aef;"><a href="#/taskList">当前任务</a></td>
       </tr>
        <tr>
          <td style="background-color:#fef;"><a href="#/hisTask">历史任务</a></td>
       </tr>
     </table>
  </div>

  <div ui-view="view" ></div>
  </div>
 </body>
 </html>

   

(4).create.html:

 <center>
 <div style="margin-top:100px;margin-left:200px;background-color:#9cc;height:350px;width:40%;font-size:26px;position:relative;float:left;">
     <p style="font-size:30px">创建模型</p>
     Name   :<input type="text" name="name" ng-model="activiti.name"/>
     </br>
     </br>
     Key    :<input type="text" name="key" ng-model="activiti.key"/>
     </br>
     </br>
     Description:<input type="text" name="description" ng-model="activiti.description"/>
     </br>
     </br>
     <input style="font-size:28px;cursor:pointer" type="button" value="创建模型" ng-click="createTo(activiti);">

     <input style="font-size:28px;cursor:pointer" type="button" value="返回">
 </div>
 </center>

7.如果模型创建成功，则可以看到数据库act_re_model中会出现一条数据，如下：

同时在act_ge_bytearray表中会出现两条数据，如下图：

并且可以看到，在model表中会有两个字段把bytearray表中两条数据的id保存起来。