diff --git a/src/com/engine/resumestorage/service/impl/ResumeIdentifyServiceImpl.java b/src/com/engine/resumestorage/service/impl/ResumeIdentifyServiceImpl.java
index f001c1d..b1a8da9 100644
--- a/src/com/engine/resumestorage/service/impl/ResumeIdentifyServiceImpl.java
+++ b/src/com/engine/resumestorage/service/impl/ResumeIdentifyServiceImpl.java
@@ -181,7 +181,7 @@ public class ResumeIdentifyServiceImpl extends Service implements ResumeIdentify
         } else if("男".equals(xb)){
             dataMap.put("xb", 0);
         }else{
-            dataMap.put("xb", "");
+            dataMap.put("xb", null);
         }
         // 体重（KG）
         String tz = personalInformation.getString("体重");