diff --git a/src/main/java/com/dispose/dispose/DeviceRouter.java b/src/main/java/com/dispose/dispose/DeviceRouter.java
index 1aac2dc8..14949e34 100644
--- a/src/main/java/com/dispose/dispose/DeviceRouter.java
+++ b/src/main/java/com/dispose/dispose/DeviceRouter.java
@@ -22,6 +22,12 @@ public class DeviceRouter {
         return devType + "_" + ipAddr;
     }
 
+    /**
+     * Device router factory dispose entry manager.
+     *
+     * @param device the device
+     * @return the dispose entry manager
+     */
     public static DisposeEntryManager deviceRouterFactory(DisposeDevice device) {
 
         String mapKey = getMapKey(device.getType(), device.getIpAddr());
@@ -56,11 +62,11 @@ public class DeviceRouter {
     }
 
     /**
-     * Device router factory dispose entry manager.
+     * Gets device router factory.
      *
      * @param devType the dev type
      * @param ipAddr  the ip addr
-     * @return the dispose entry manager
+     * @return the device router factory
      */
     public static DisposeEntryManager getDeviceRouterFactory(int devType, String ipAddr) {
 
diff --git a/src/main/java/com/dispose/pojo/dto/ProtocolRespDTO.java b/src/main/java/com/dispose/pojo/dto/ProtocolRespDTO.java
index 6b3be27a..d8541113 100644
--- a/src/main/java/com/dispose/pojo/dto/ProtocolRespDTO.java
+++ b/src/main/java/com/dispose/pojo/dto/ProtocolRespDTO.java
@@ -82,6 +82,16 @@ public class ProtocolRespDTO extends BaseProtocolDTO {
         return result(err, getObjectJson(obj), ConstValue.Protocol.CRYPTO_NONE);
     }
 
+    /**
+     * Result protocol resp dto.
+     *
+     * @param <T>     the type parameter
+     * @param err     the err
+     * @param obj     the obj
+     * @param objType the obj type
+     * @return the protocol resp dto
+     * @throws JsonProcessingException the json processing exception
+     */
     public static <T> ProtocolRespDTO result(ErrorCode err, Object obj, Class<T> objType) throws JsonProcessingException {
         return result(err, getObjectJson(obj, objType), ConstValue.Protocol.CRYPTO_NONE);
     }