diff --git a/platform-common/src/main/java/com/lyms/platform/common/dao/BaseMongoDAOImpl.java b/platform-common/src/main/java/com/lyms/platform/common/dao/BaseMongoDAOImpl.java
index 8c5782e..04f21c6 100644
--- a/platform-common/src/main/java/com/lyms/platform/common/dao/BaseMongoDAOImpl.java
+++ b/platform-common/src/main/java/com/lyms/platform/common/dao/BaseMongoDAOImpl.java
@@ -155,7 +155,7 @@ public class BaseMongoDAOImpl<T> implements BaseMongoDAO<T> {
                 model.setAction(action);
                 if (null != data) {
                     model.setClassName(LymsEncodeUtil.aesEncrypt(data.getClass().getName(), mongo_crypto_key));
-                    model.setJsonData(LymsEncodeUtil.aesEncrypt(JsonUtil.obj2JsonString(data), mongo_crypto_key));
+                    model.setJsonData(LymsEncodeUtil.aesEncrypt(JsonUtil.obj2Str(data), mongo_crypto_key));
                 }
                 model.setCreated(new Date());
                 model.setModified(model.getCreated());