Activiti5.22开发 整合spring和整合编辑器插件（上）

1   下载 5.22 安装包 ,activiti-5.22.0.rar

    https://github.com/Activiti/Activiti/releases

2 配置项目maven依赖 

         < dependency >

         < groupId >org.activiti groupId >

         < artifactId >activiti-spring artifactId >

         < version >${activitti.version} version >

         dependency >   

        

         < dependency >

         < groupId >org.activiti groupId >

         < artifactId >activiti-engine artifactId >

         < version >${activitti.version} version >

         dependency >       

         < dependency >

         < groupId >org.activiti groupId >

         < artifactId >activiti-modeler artifactId >

         < version >${activitti.version} version >

         dependency >       

         < dependency >

         < groupId >org.activiti groupId >

         < artifactId >activiti-diagram-rest artifactId >

         < version >${activitti.version} version >

         dependency >

3 从activiti-5.22.0.rar中解压 activiti-explorer.war （解压war方法直接改rar） 

 

4 将 activiti-explorer.war 中以下文件夹和文件拷贝到项目webapp中

  

5 从activiti-5.22.0.rar中目录lib中解压出 activiti-bpmn-model-5.22.0-sources.jar  备用

6 从activiti-explorer.war 目录中 \WEB-INF\classes\stencilset.json  拷贝文件到项目resources 中

 7 修改项目webapp\editor-app\app-cfg.js 文件， 配置项目url，url是编辑器相关的后台服务的url。 myspringmvc是项目名称

'use strict';

var ACTIVITI = ACTIVITI || {};

ACTIVITI.CONFIG = {

     //'contextRoot' : '/activiti-explorer/service',

'contextRoot' : '/myspringmvc/service',

};

 8 整合 modeler模块， activiti-bpmn-model-5.22.0-sources.jar ， 一共只有三个Controller类，对应着三个URL，分别是：

　StencilsetRestResource　/editor/stencilset 用来加载并返回stencilset.json文件的内容

　ModelEditorJsonRestResource　/model/{modelId}/json 这个就是访问的那个url了，通过部署的modelId模型编辑源

　ModelSaveRestResource　/model/{modelId}/save 这个是用来保存编辑的模型

 9 修改三个 Controller类

      在每个Controller类上加上@RequestMapping注解，并指定值为"service"（对应前台app-cfg.js中配置的url），例如： StencilsetRestResource类

@RestController

@RequestMapping( "/service")

public class StencilsetRestResource {

@RequestMapping(value= "/editor/stencilset", method = RequestMethod.GET, produces = "application/json;charset=utf-8")

public @ ResponseBody String getStencilset() {

InputStream stencilsetStream = this.getClass().getClassLoader().getResourceAsStream( "stencilset.json");

try {

return IOUtils.toString(stencilsetStream, "utf-8");

} catch ( Exception e) {

throw new ActivitiException( "Error while loading stencil set", e);

}

}

}

10 编写  ModelerController 类，提供新建模型的接口 model/newModel

RestController

@RequestMapping( "models")

public class ModelerController implements RestServiceController< Model, String>{

@Autowired

RepositoryService repositoryService;

@Autowired

ObjectMapper objectmapper;

/**

* 新建一个空模型

* @return

* @throws UnsupportedEncodingException

*/

@GetMapping( "newModel")

public void newModel( HttpServletRequest request, HttpServletResponse response) throws UnsupportedEncodingException {

     //初始化一个空模型

Model model = repositoryService.newModel();

//设置一些默认信息

String name = "new-process";

String description = "";

int revision = 1;

String key = "process";

ObjectNode modelNode = objectmapper.createObjectNode();

modelNode.put(ModelDataJsonConstants.MODEL_NAME, name);

modelNode.put(ModelDataJsonConstants.MODEL_DESCRIPTION, description);

modelNode.put(ModelDataJsonConstants.MODEL_REVISION, revision);

model.setName(name);

model.setKey(key);

model.setMetaInfo(modelNode.toString());

repositoryService.saveModel(model);

String id = model.getId();

//完善ModelEditorSource

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(id,editorNode.toString().getBytes( "utf-8"));

try {

            response.sendRedirect(request.getContextPath() + "/modeler.html?modelId=" +id);

        } catch ( IOException e) {           

            e.printStackTrace();

        }

}

}

     

Activiti5.22开发 <2> 整合spring和整合编辑器插件（下）