fix

src/main/java/com/goer/project/model/modelEntity/service/impl/ModelEntityServiceImpl.java

@@ -243,6 +243,8 @@ public class ModelEntityServiceImpl implements IModelEntityService
                     ndt.setCreateTime(DateUtils.getNowDate());
                     ndt.setCreateBy(modelEntity.getCreateBy());
                     dataTypeMapper.insertDataType(ndt);
+                } else {
+                    mf.setFieldType(dataTypes.get(0).getDataTypeCode());
                 }
 
                 mf.setFieldPk("N");

src/main/resources/templates/model/dataType/edit.html

@@ -16,7 +16,7 @@
             <div class="form-group">    
                 <label class="col-sm-3 control-label is-required">数据类型代码：</label>
                 <div class="col-sm-8">
-                    <input name="dataTypeCode" th:field="*{dataTypeCode}" class="form-control" type="text" required>
+                    <input name="dataTypeCode" th:field="*{dataTypeCode}" class="form-control" readonly="true" type="text" required>
                 </div>
             </div>
             <div class="form-group">