BpmnModelUtil.addExtensionAttribute(process, FixFlowPackage.Literals.DOCUMENT_ROOT__CATEGORY, processCategory.asText());
}
//默认表单
JsonNode processFormUri = JsonConverterUtil.getProperty(PROPERTY_PROCESS_DEFAULT_FORMURI, modelNode);
if(processFormUri != null && StringUtil.isNotEmpty(processFormUri.asText())){
FormUri formUri = FixFlowFactory.eINSTANCE.createFormUri();
Expression expression = FixFlowFactory.eINSTANCE.createExpression();
expression.setName(processFormUri.asText());
expression.setValue(processFormUri.asText());
formUri.setExpression(expression);