diff --git a/OCRTool/src/main/java/com/bonus/core/ErrorHandler.java b/OCRTool/src/main/java/com/bonus/core/ErrorHandler.java
index b3ecd19..94a44d3 100644
--- a/OCRTool/src/main/java/com/bonus/core/ErrorHandler.java
+++ b/OCRTool/src/main/java/com/bonus/core/ErrorHandler.java
@@ -12,7 +12,8 @@ public class ErrorHandler {
     public static final int PYTHON_PROCESS_START_ERROR = 30003;
     public static final int PYTHON_SCRIPT_EXECUTE_ERROR = 30004;
     public static final int PYTHON_EXECUTE_OTHER_ERROR = 30005;
-    public static final int JAVA_CALL_PYTHON_UNKWON_ERROR = 30006;
+    public static final int RECOGNITION_PARAM_ERROR = 30006;
+    public static final int JAVA_CALL_PYTHON_UNKWON_ERROR = 30007;
 
     public static String getErrorInfo(int errorCode) {
         switch (errorCode) {
@@ -24,6 +25,8 @@ public class ErrorHandler {
                 return getInternalErrorInfo(errorCode, "启动python进程报错");
             case PYTHON_SCRIPT_EXECUTE_ERROR:
                 return getInternalErrorInfo(errorCode, "python脚本执行异常");
+            case RECOGNITION_PARAM_ERROR:
+                return getInternalErrorInfo(errorCode, "参数检查错误");
             case PYTHON_EXECUTE_OTHER_ERROR:
                 return getInternalErrorInfo(errorCode, "python脚本执行其他错误");
             default:
diff --git a/OCRTool/src/main/java/com/bonus/core/IdentifyRecognitionParams.java b/OCRTool/src/main/java/com/bonus/core/IdentifyRecognitionDTO.java
similarity index 91%
rename from OCRTool/src/main/java/com/bonus/core/IdentifyRecognitionParams.java
rename to OCRTool/src/main/java/com/bonus/core/IdentifyRecognitionDTO.java
index f23a19b..651c80e 100644
--- a/OCRTool/src/main/java/com/bonus/core/IdentifyRecognitionParams.java
+++ b/OCRTool/src/main/java/com/bonus/core/IdentifyRecognitionDTO.java
@@ -1,6 +1,9 @@
 package com.bonus.core;
 
-public class IdentifyRecognitionParams {
+import com.sun.istack.internal.NotNull;
+
+public class IdentifyRecognitionDTO {
+    @NotNull()
     private RecognitionType type;
     private String recognitionFrontData = "";
     private String recognitionBackData = "";