activiti自定义流程之Spring整合activiti-modeler5.16实例（二）：创建流程模型

注：（1）环境搭建：activiti自定义流程之Spring整合activiti-modeler5.16实例（一）：环境搭建

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。

阅读更多