add:com口读取工具

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

@@ -54,7 +54,9 @@ public class ComPortUtil {
                     if (bytesRead > 0) {
                         String msg = new String(buffer, 0, bytesRead);
                         System.out.println("--获取COM口信息--"+msg);
-                        function.apply(msg);
+                        if (function != null){
+                            function.apply(msg);
+                        }
                     }
                 }
             } catch (Exception e) {