springboot2.0集成activiti modeler
2024-05-01 04:20:31
项目采用Springboot 2.0.3.RELEASE版本以及activiti 5.22.0版本
在acitiviti官网下载完整包https://github.com/Activiti/Activiti/releases/tag/activiti-5.22.0
下载完成后
1、将Activiti-activiti-5.22.0\modules\activiti-webapp-explorer2\src\main\webapp下的diagram-viewer、editor-app以及modeler.html文件放置在项目resources\static文件夹下。
2、将Activiti-activiti-5.22.0\modules\activiti-webapp-explorer2\src\resources下的stencilset.json放置在项目resources\static文件夹下。
3、将Activiti-activiti-5.22.0\modules\activiti-modeler\src\main\java\org\activiti\rest\editor下的main以及model中的java文件放置到项目mian\java目录下
复制完成后，首先将ModelEditoeJsonRestResource.java、ModelSaveRestResource.java、StencilsetRestResource.java上添加 @RequestMapping(value = “/service”)
然后修改resources\static\editor-app\app-cfg.js，如下图
修改ModelSaveRestResource.java，如下（参考https://blog.csdn.net/qq_21770005/article/details/78713912）
@RestController
@RequestMapping(value = “/service”)
public class ModelSaveRestResource implements ModelDataJsonConstants {private static final Logger LOGGER = LogManager.getLogger(ModelSaveRestResource.class);@Autowiredprivate RepositoryService repositoryService;@Autowiredprivate ObjectMapper objectMapper;@RequestMapping(value=”/model/{modelId}/save”, method = RequestMethod.PUT)@ResponseStatus(value = HttpStatus.OK)public void saveModel(@PathVariable String modelId, @RequestParam(“name”) String name,@RequestParam(“json_xml”) String json_xml, @RequestParam(“svg_xml”) String svg_xml,@RequestParam(“description”) String description) {try {Model model = repositoryService.getModel(modelId);ObjectNode modelJson = (ObjectNode) objectMapper.readTree(model.getMetaInfo());modelJson.put(MODEL_NAME, name);modelJson.put(MODEL_DESCRIPTION, description);model.setMetaInfo(modelJson.toString());model.setName(name);repositoryService.saveModel(model);repositoryService.addModelEditorSource(model.getId(), json_xml.getBytes(“utf-8”));InputStream svgStream = new ByteArrayInputStream(svg_xml.getBytes(“utf-8”));TranscoderInput input = new TranscoderInput(svgStream);PNGTranscoder transcoder = new PNGTranscoder();// Setup outputByteArrayOutputStream outStream = new ByteArrayOutputStream();TranscoderOutput output = new TranscoderOutput(outStream);// Do the transformationtranscoder.transcode(input, output);final byte[] result = outStream.toByteArray();repositoryService.addModelEditorSourceExtra(model.getId(), result);outStream.close();} catch (Exception e) {LOGGER.error(“Error saving model”, e);throw new ActivitiException(“Error saving model”, e);}}
}在pom.xml添加activiti依赖
<!--activiti--><dependency><groupId>org.activiti</groupId><artifactId>activiti-spring-boot-starter-basic</artifactId><version>${activiti.version}<span class="hljs-tag"></<span class="hljs-name">version</span>></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="6"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> <span class="hljs-tag"></<span class="hljs-name">dependency</span>></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="7"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="8"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> <span class="hljs-tag"><<span class="hljs-name">dependency</span>></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="9"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> <span class="hljs-tag"><<span class="hljs-name">groupId</span>></span>org.activiti<span class="hljs-tag"></<span class="hljs-name">groupId</span>></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="10"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> <span class="hljs-tag"><<span class="hljs-name">artifactId</span>></span>activiti-spring-boot-starter-actuator<span class="hljs-tag"></<span class="hljs-name">artifactId</span>></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="11"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> <span class="hljs-tag"><<span class="hljs-name">version</span>></span>${activiti.version}</version></dependency><dependency><groupId>org.activiti</groupId><artifactId>activiti-rest</artifactId><version>${activiti.version}<span class="hljs-tag"></<span class="hljs-name">version</span>></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="18"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> <span class="hljs-tag"></<span class="hljs-name">dependency</span>></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="19"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="20"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> <span class="hljs-tag"><<span class="hljs-name">dependency</span>></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="21"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> <span class="hljs-tag"><<span class="hljs-name">groupId</span>></span>org.apache.xmlgraphics<span class="hljs-tag"></<span class="hljs-name">groupId</span>></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="22"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> <span class="hljs-tag"><<span class="hljs-name">artifactId</span>></span>batik-codec<span class="hljs-tag"></<span class="hljs-name">artifactId</span>></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="23"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> <span class="hljs-tag"><<span class="hljs-name">version</span>></span>1.7<span class="hljs-tag"></<span class="hljs-name">version</span>></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="24"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> <span class="hljs-tag"></<span class="hljs-name">dependency</span>></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="25"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="26"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> <span class="hljs-tag"><<span class="hljs-name">dependency</span>></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="27"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> <span class="hljs-tag"><<span class="hljs-name">groupId</span>></span>org.apache.xmlgraphics<span class="hljs-tag"></<span class="hljs-name">groupId</span>></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="28"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> <span class="hljs-tag"><<span class="hljs-name">artifactId</span>></span>batik-css<span class="hljs-tag"></<span class="hljs-name">artifactId</span>></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="29"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> <span class="hljs-tag"><<span class="hljs-name">version</span>></span>1.7<span class="hljs-tag"></<span class="hljs-name">version</span>></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="30"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> <span class="hljs-tag"></<span class="hljs-name">dependency</span>></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="31"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="32"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> <span class="hljs-tag"><<span class="hljs-name">dependency</span>></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="33"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> <span class="hljs-tag"><<span class="hljs-name">groupId</span>></span>org.apache.xmlgraphics<span class="hljs-tag"></<span class="hljs-name">groupId</span>></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="34"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> <span class="hljs-tag"><<span class="hljs-name">artifactId</span>></span>batik-svg-dom<span class="hljs-tag"></<span class="hljs-name">artifactId</span>></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="35"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> <span class="hljs-tag"><<span class="hljs-name">version</span>></span>1.7<span class="hljs-tag"></<span class="hljs-name">version</span>></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="36"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> <span class="hljs-tag"></<span class="hljs-name">dependency</span>></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="37"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="38"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> <span class="hljs-tag"><<span class="hljs-name">dependency</span>></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="39"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> <span class="hljs-tag"><<span class="hljs-name">groupId</span>></span>org.apache.xmlgraphics<span class="hljs-tag"></<span class="hljs-name">groupId</span>></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="40"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> <span class="hljs-tag"><<span class="hljs-name">artifactId</span>></span>batik-svggen<span class="hljs-tag"></<span class="hljs-name">artifactId</span>></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="41"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> <span class="hljs-tag"><<span class="hljs-name">version</span>></span>1.7<span class="hljs-tag"></<span class="hljs-name">version</span>></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="42"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> <span class="hljs-tag"></<span class="hljs-name">dependency</span>></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="43"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="44"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> <span class="hljs-tag"><<span class="hljs-name">dependency</span>></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="45"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> <span class="hljs-tag"><<span class="hljs-name">groupId</span>></span>org.activiti<span class="hljs-tag"></<span class="hljs-name">groupId</span>></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="46"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> <span class="hljs-tag"><<span class="hljs-name">artifactId</span>></span>activiti-explorer<span class="hljs-tag"></<span class="hljs-name">artifactId</span>></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="47"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> <span class="hljs-tag"><<span class="hljs-name">version</span>></span>${activiti.version}</version></dependency><dependency><groupId>org.activiti</groupId><artifactId>activiti-diagram-rest</artifactId><version>${activiti.version}<span class="hljs-tag"></<span class="hljs-name">version</span>></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="54"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> <span class="hljs-tag"></<span class="hljs-name">dependency</span>></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="55"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> </div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="56"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> <span class="hljs-tag"><<span class="hljs-name">dependency</span>></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="57"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> <span class="hljs-tag"><<span class="hljs-name">groupId</span>></span>org.activiti<span class="hljs-tag"></<span class="hljs-name">groupId</span>></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="58"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> <span class="hljs-tag"><<span class="hljs-name">artifactId</span>></span>activiti-simple-workflow<span class="hljs-tag"></<span class="hljs-name">artifactId</span>></span></div></div></li><li><div class="hljs-ln-numbers"><div class="hljs-ln-line hljs-ln-n" data-line-number="59"></div></div><div class="hljs-ln-code"><div class="hljs-ln-line"> <span class="hljs-tag"><<span class="hljs-name">version</span>></span>${activiti.version}</version></dependency><dependency><groupId>org.activiti</groupId><artifactId>activiti-spring</artifactId><version>${activiti.version}</version></dependency><!-- END activiti -->在application.yml中添加activiti的数据源，如下
spring:datasource:activiti:url: jdbc:mysql://localhost:3306/activity?useUnicode=true&characterEncoding=utf8&useSSL=falseusername: rootpassword: 123driverClassName: com.mysql.jdbc.Drivertype: com.alibaba.druid.pool.DruidDataSource添加activiti数据源配置类
@Configuration
public class ActitytiDataSourceConfig extends AbstractProcessEngineAutoConfiguration {private static final Logger log = LogManager.getLogger(ActitytiDataSourceConfig.class);@Bean(name = "activitiDataSource")@ConfigurationProperties(prefix = "spring.datasource.activiti")public DataSource activitiDataSource(){log.info("activitiDataSource 初始化...");return new DruidDataSource();}@Beanpublic PlatformTransactionManager transactionManager() {return new DataSourceTransactionManager(activitiDataSource());}@Beanpublic SpringProcessEngineConfiguration springProcessEngineConfiguration() {SpringProcessEngineConfiguration configuration = new SpringProcessEngineConfiguration();configuration.setDataSource(activitiDataSource());configuration.setDatabaseSchemaUpdate(ProcessEngineConfiguration.DB_SCHEMA_UPDATE_TRUE);configuration.setJobExecutorActivate(true);configuration.setTransactionManager(transactionManager());return configuration;}}以上，基本配置已完成。在启动项目后，将自动创建activiti所需要的25张表。
如报错无法启动，在application.yml中添加
spring: activiti:check-process-definitions: false成功启动项目后，发现访问项目任何路径都需要输入用户名和密码。这是因为acitivi-rest中集成了spring-security，需要在启动类上添加
@EnableAutoConfiguration(exclude={org.springframework.boot.autoconfigure.security.servlet.SecurityAutoConfiguration.class, org.activiti.spring.boot.SecurityAutoConfiguration.class})访问http://localhost:8080/modeler.html，发现页面未显示内容，这是因为目前还未创建任何model
此时创建ActivitiModelController.java，如下
@Controller
public class ActivitiModelController {private static final Logger log = LogManager.getLogger(ActivitiModelController.class);@AutowiredProcessEngine processEngine;@AutowiredObjectMapper objectMapper;/*** 新建一个空模型*/@RequestMapping("/create")public void newModel(HttpServletResponse response) throws IOException {RepositoryService repositoryService = processEngine.getRepositoryService();//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ModelEditorSourceObjectNode 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"));response.sendRedirect("/modeler.html?modelId="+id);}/*** 获取所有模型*/@RequestMapping("/modelList")@ResponseBodypublic Object modelList(){RepositoryService repositoryService = processEngine.getRepositoryService();return repositoryService.createModelQuery().list();}/*** 发布模型为流程定义*/@RequestMapping("/deploy")@ResponseBodypublic Object deploy(String modelId) throws Exception {//获取模型RepositoryService repositoryService = processEngine.getRepositoryService();Model modelData = repositoryService.getModel(modelId);byte[] bytes = repositoryService.getModelEditorSource(modelData.getId());if (bytes == null) {return "模型数据为空，请先设计流程并成功保存，再进行发布。";}JsonNode modelNode = new ObjectMapper().readTree(bytes);BpmnModel model = new BpmnJsonConverter().convertToBpmnModel(modelNode);if(model.getProcesses().size()==0){return "数据模型不符要求，请至少设计一条主线流程。";}byte[] bpmnBytes = new BpmnXMLConverter().convertToXML(model);//发布流程String processName = modelData.getName() + ".bpmn20.xml";Deployment deployment = repositoryService.createDeployment().name(modelData.getName()).addString(processName, new String(bpmnBytes, "UTF-8")).deploy();modelData.setDeploymentId(deployment.getId());repositoryService.saveModel(modelData);return "SUCCESS";}/*** 启动流程*/@RequestMapping("/start")@ResponseBodypublic Object startProcess(String keyName) {ProcessInstance process = processEngine.getRuntimeService().startProcessInstanceByKey(keyName);return process.getId() + " : " + process.getProcessDefinitionId();}/*** 提交任务*/@RequestMapping("/run")@ResponseBodypublic Object run(String processInstanceId) {Task task = processEngine.getTaskService().createTaskQuery().processInstanceId(processInstanceId).singleResult();log.info("task {} find ", task.getId());processEngine.getTaskService().complete(task.getId());return "SUCCESS";}}通过访问http://localhost:8080/create创建一个空白的model并跳转到编辑页面
在绘制流程完成后，访问http://localhost:8080/deploy?modelId=1 对该流程进行部署
http://localhost:8080/start?keyName=hello 启动流程
http://localhost:8080/run?processInstanceId=1 提交
至此，springboot集成activiti modeler完成
from :https://blog.csdn.net/zhengyidi1357/article/details/80858865参考：https://blog.csdn.net/hj7jay/article/details/50895936
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