中煤 过户车类型 bug修改

src/main/java/com/ydtech/constants/enums/dict/ZmSyTransferType.java

@@ -37,7 +37,7 @@ public enum ZmSyTransferType implements IBaseEnum {
                 return value.desc;
             }
         }
-        return null;
+        return "null";
     }
 
     public static String getByDesc(String desc){

src/main/java/com/ydtech/constants/enums/dict/ZmTransferType.java

@@ -41,7 +41,7 @@ public enum ZmTransferType implements IBaseEnum {
                 return value.desc;
             }
         }
-        return null;
+        return "null";
     }
 
     public static String getByDesc(String desc){