由于群里有些朋友對這個flowable還不是很熟悉，在群里的小伙伴的建議下，師傅(小學生05101)制作一個開源的項目源碼，一共大家學習和交流，希望對有幫助，少走彎路 如果有不懂的問題可以入群：633168411 里面都是一些熱心腸的人。

項目地址https://gitee.com/lwj/flowable.git

代碼分支	flowable-base
視頻講解地址	https://space.bilibili.com/485524575/channel/detail?cid=94579

用戶名密碼

0000001	test
0000002	test
0000003	test
0000004	test

文章目錄

• • • 1. 演示
    • 2. 導入模板的方法

1. 演示

2. 導入模板的方法

public ModelRepresentation importProcessModel(MultipartFile file, ModelRepresentation model) {String fileName = file.getOriginalFilename();if (fileName != null && (fileName.endsWith(".bpmn") || fileName.endsWith(".bpmn20.xml"))) {try {XMLInputFactory xif = XmlUtil.createSafeXmlInputFactory();InputStreamReader xmlIn = new InputStreamReader(file.getInputStream(), "UTF-8");XMLStreamReader xtr = xif.createXMLStreamReader(xmlIn);BpmnModel bpmnModel = bpmnXmlConverter.convertToBpmnModel(xtr);//模板驗證ProcessValidator validator = new ProcessValidatorFactory().createDefaultProcessValidator();List<ValidationError> errors = validator.validate(bpmnModel);if (CollectionUtils.isNotEmpty(errors)){StringBuffer es = new StringBuffer();errors.forEach(ve -> es.append(ve.toString()).append("/n"));throw new BadRequestException("模板驗證失敗，原因: " + es.toString());}if (CollectionUtils.isEmpty(bpmnModel.getProcesses())) {throw new BadRequestException("No process found in definition " + fileName);}if (bpmnModel.getLocationMap().size() == 0) {BpmnAutoLayout bpmnLayout = new BpmnAutoLayout(bpmnModel);bpmnLayout.execute();}ObjectNode modelNode = bpmnJsonConverter.convertToJson(bpmnModel);org.flowable.bpmn.model.Process process = bpmnModel.getMainProcess();String name = process.getId();if (StringUtils.isNotEmpty(process.getName())) {name = process.getName();}String description = process.getDocumentation();model.setKey(process.getId());model.setName(name);model.setDescription(description);model.setModelType(AbstractModel.MODEL_TYPE_BPMN);User createdBy = SecurityUtils.getCurrentUserObject();//查詢是否已經存在流程模板Model newModel = new Model();List<Model> models = modelRepository.findByKeyAndType(model.getKey(), model.getModelType());if (CollectionUtils.isNotEmpty(models)) {Model updateModel = models.get(0);newModel.setId(updateModel.getId());}newModel.setName(model.getName());newModel.setKey(model.getKey());newModel.setModelType(model.getModelType());newModel.setCreated(Calendar.getInstance().getTime());newModel.setCreatedBy(createdBy.getId());newModel.setDescription(model.getDescription());newModel.setModelEditorJson(modelNode.toString());newModel.setLastUpdated(Calendar.getInstance().getTime());newModel.setLastUpdatedBy(createdBy.getId());newModel.setTenantId(model.getTenantId());newModel = modelService.createModel(newModel, SecurityUtils.getCurrentUserObject());return new ModelRepresentation(newModel);} catch (BadRequestException e) {throw e;} catch (Exception e) {LOGGER.error("Import failed for {}", fileName, e);throw new BadRequestException("Import failed for " + fileName + ", error message " + e.getMessage());}} else {throw new BadRequestException("Invalid file name, only .bpmn and .bpmn20.xml files are supported not " + fileName);}}

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