FEM求解

src/main/java/com/miniframe/solverconfig/fem/FEMOrder.java

@@ -39,7 +39,7 @@ public class FEMOrder {
         }else{
             SysFileMapper sysFileDAO = UtilTools.getBean(SysFileMapper.class);
             SysFile nmlFile =  sysFileDAO.selectByPrimaryKey(nmlFileId);
-            if(nmlFile!=null){
+            if(nmlFile == null){
                 throw new BusinessException("EB4000001");
             }
             nmlFilePath = XIFileUtils.getRootPathStr()+"/"+nmlFile.getFilepath();