add:com口读取工具

acs/nladmin-system/nlsso-server/src/main/java/org/nl/common/utils/ComPortUtil.java

@@ -54,9 +54,11 @@ public class ComPortUtil {
                     if (bytesRead > 0) {
                         String msg = new String(buffer, 0, bytesRead);
                         System.out.println("--获取COM口信息--"+msg);
+                        if (function != null){
                             function.apply(msg);
                         }
                     }
+                }
             } catch (Exception e) {
                 e.printStackTrace();
             } finally {