diff --git a/ktg-print/src/main/java/com/ktg/print/controller/PrintController.java b/ktg-print/src/main/java/com/ktg/print/controller/PrintController.java
index 5693ad4..427f62e 100644
--- a/ktg-print/src/main/java/com/ktg/print/controller/PrintController.java
+++ b/ktg-print/src/main/java/com/ktg/print/controller/PrintController.java
@@ -229,22 +229,21 @@ public class PrintController {
                 if (CollectionUtils.isEmpty(pcBarcodes)) {
                     return AjaxResult.error("未查询到二维码信息！" + "(" + businessCode + ")");
                 }
-                //TODO
-                Long routeId =-1L,processId = -1L;
+                Long routeId = -1L, processId = -1L;
                 ProRouteProduct proRouteProduct = new ProRouteProduct();
                 proRouteProduct.setItemId(proCard.getItemId());
                 List<ProRouteProduct> products = proRouteProductMapper.selectProRouteProductList(proRouteProduct);
-                if(CollectionUtil.isNotEmpty(products)){
+                if (CollectionUtil.isNotEmpty(products)) {
                     products = products.stream().filter(i -> proRouteMapper.selectProRouteByRouteId(i.getRouteId()).getEnableFlag().equals(UserConstants.YES)).collect(Collectors.toList());
-                    if (CollectionUtil.isNotEmpty(products)){
+                    if (CollectionUtil.isNotEmpty(products)) {
                         routeId = products.get(0).getRouteId();
                     }
                 }
-                ProRouteProcess proRouteProcess =new ProRouteProcess();
+                ProRouteProcess proRouteProcess = new ProRouteProcess();
                 proRouteProcess.setRouteId(routeId);
                 String processingProcedure = "";
                 List<ProRouteProcess> proList = iProRouteProcessService.selectProRouteProcessList(proRouteProcess);
-                for (ProRouteProcess process:proList) {
+                for (ProRouteProcess process : proList) {
                     processingProcedure = processingProcedure + "," + process.getProcessName();
                 }
                 dataType = PrintMessageProto.Printer.DataType.Printing_OfCirculation;
@@ -252,7 +251,7 @@ public class PrintController {
                         setWorkOrderNumber(proCard.getWorkorderCode()).
                         setMaterialCode(proCard.getItemCode()).
                         setMaterialName(proCard.getItemName()).
-                        setSpecificationAndModel(proCard.getSpecification()==null?"":proCard.getSpecification()).
+                        setSpecificationAndModel(proCard.getSpecification() == null ? "" : proCard.getSpecification()).
                         setProcessingProcedure(processingProcedure).
                         setParam(pcBarcodes.get(0).getBarcodeUrl()).build();
                 // 构造对应的消息对象
@@ -388,6 +387,9 @@ public class PrintController {
         //根据客户端和通道信息
         ConcurrentHashMap<SocketAddress, Channel> channels = PrintServerDefaultHandler.chanelMap;
         Channel channel = channels.get(socketAddress.get(clientIp));
+        if (channel == null) {
+            return AjaxResult.error("打印机客户端连接异常" + "(" + clientIp + ")");
+        }
         channel.writeAndFlush(msg);
         return AjaxResult.success("打印成功");
     }