activiti 流程设计器传入modelID显示空白，提示namespace找不到?报错

spring mvc 整合activiti流程设计器报错  

<!--activiti begin-->
    <bean id="processEngineConfiguration" class="org.activiti.spring.SpringProcessEngineConfiguration">
        <property name="dataSource" ref="dataSource"/>
        <property name="transactionManager" ref="transactionManager"/>
        <property name="databaseSchemaUpdate" value="true" />
        <property name="jobExecutorActivate" value="false" />
        <property name="createDiagramOnDeploy" value="true" /> <!-- 是否生成流程定义图片 -->
        <property name="activityFontName" value="宋体"/>
        <property name="labelFontName" value="宋体"/>
        <property name="databaseSchema" value="ACT"/>
        <!--<property name="deploymentResources" value="classpath*:/designer/*.bpmn" />-->
    </bean>
    <bean id="processEngine" class="org.activiti.spring.ProcessEngineFactoryBean">
        <property name="processEngineConfiguration" ref="processEngineConfiguration" />
    </bean>
    <bean id="repositoryService" factory-bean="processEngine" factory-method="getRepositoryService" />
    <bean id="runtimeService" factory-bean="processEngine" factory-method="getRuntimeService" />
    <bean id="formService" factory-bean="processEngine" factory-method="getFormService" />
    <bean id="identityService" factory-bean="processEngine" factory-method="getIdentityService" />
    <bean id="taskService" factory-bean="processEngine" factory-method="getTaskService" />
    <bean id="historyService" factory-bean="processEngine" factory-method="getHistoryService" />
    <bean id="managementService" factory-bean="processEngine" factory-method="getManagementService" />
    <!--activiti end-->


    <!-- modeler需要自动注入ObjectMapper -->
    <bean id="objectMapper" class="com.fasterxml.jackson.databind.ObjectMapper"/>

maven依赖

<!-- activit begin -->
        <dependency>
            <groupId>org.activiti</groupId>
            <artifactId>activiti-engine</artifactId>
            <version>${activiti.version}</version>
        </dependency>
        <dependency>
            <groupId>org.activiti</groupId>
            <artifactId>activiti-spring</artifactId>
            <version>${activiti.version}</version>
        </dependency>
        <dependency>
            <groupId>org.activiti</groupId>
            <artifactId>activiti-modeler</artifactId>
            <version>${activiti.version}</version>
        </dependency>
        <dependency>
            <groupId>org.activiti</groupId>
            <artifactId>activiti-bpmn-model</artifactId>
            <version>${activiti.version}</version>
        </dependency>
        <dependency>
            <groupId>org.activiti</groupId>
            <artifactId>activiti-bpmn-layout</artifactId>
            <version>${activiti.version}</version>
        </dependency>
        <dependency>
            <groupId>org.activiti</groupId>
            <artifactId>activiti-bpmn-converter</artifactId>
            <version>${activiti.version}</version>
        </dependency>
        <dependency>
            <groupId>org.activiti</groupId>
            <artifactId>activiti-process-validation</artifactId>
            <version>${activiti.version}</version>
        </dependency>
        <dependency>
            <groupId>org.activiti</groupId>
            <artifactId>activiti-common-rest</artifactId>
            <version>${activiti.version}</version>
        </dependency>
        <dependency>
            <groupId>org.activiti</groupId>
            <artifactId>activiti-crystalball</artifactId>
            <version>${activiti.version}</version>
        </dependency>
        <dependency>
            <groupId>org.activiti</groupId>
            <artifactId>activiti-diagram-rest</artifactId>
            <version>${activiti.version}</version>
        </dependency>
        <dependency>
            <groupId>org.activiti</groupId>
            <artifactId>activiti-explorer</artifactId>
            <version>${activiti.version}</version>
        </dependency>
        <dependency>
            <groupId>org.activiti</groupId>
            <artifactId>activiti-image-generator</artifactId>
            <version>${activiti.version}</version>
        </dependency>
        <dependency>
            <groupId>org.activiti</groupId>
            <artifactId>activiti-json-converter</artifactId>
            <version>${activiti.version}</version>
        </dependency>
        <dependency>
            <groupId>org.activiti</groupId>
            <artifactId>activiti-simple-workflow</artifactId>
            <version>${activiti.version}</version>
        </dependency>

        <!-- activit end -->

这是创建model的代码： 

@RequestMapping(value = "/Add")
    @ResponseBody
    public ModelAndView Add() {
        ModelAndView mv = getModelAndView();
        PageData pd = this.getPageData();
        String name = pd.getString("name");
        String key = pd.getString("key");
        String descriptio = pd.getString("descriptio");
        logBefore(logger, Jurisdiction.getUsername() + "新增流程模型" + name);
        try {
            ObjectMapper objectMapper = new ObjectMapper();
            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);
            ObjectNode modelObjectNode = objectMapper.createObjectNode();
            modelObjectNode.put(ModelDataJsonConstants.MODEL_NAME, name);
            modelObjectNode.put(ModelDataJsonConstants.MODEL_REVISION, 1);
            modelObjectNode.put(ModelDataJsonConstants.MODEL_DESCRIPTION, descriptio);
            Model modelData = repositoryService.newModel();
            modelData.setMetaInfo(modelObjectNode.toString());
            modelData.setName(name);
            modelData.setKey(key);
            //保存模型
            repositoryService.saveModel(modelData);
            repositoryService.addModelEditorSource(modelData.getId(), editorNode.toString().getBytes("utf-8"));
//        response.sendRedirect(request.getContextPath() + "/modeler.html?modelId=" + modelData.getId());
        } catch (Exception e) {
            e.printStackTrace();
            logger.error("创建模型失败：", e);
        }
        mv.addObject("msg", "success");
        mv.setViewName("save_result");
        return mv;
    }

目录结构

前端页面访问传入已创建好的modelID

访问结果如下：

求大神指点这是什么问题  我刚接触activiti求指教，谢谢！！！