diff --git a/cloud/search_xiaoan/src/main/resources/mapper/FingerMapper.xml b/cloud/search_xiaoan/src/main/resources/mapper/FingerMapper.xml
index fea42f2..a1a35c0 100644
--- a/cloud/search_xiaoan/src/main/resources/mapper/FingerMapper.xml
+++ b/cloud/search_xiaoan/src/main/resources/mapper/FingerMapper.xml
@@ -9,7 +9,7 @@
     </insert>
 
     <select id="selectFinger" parameterType="java.lang.Integer" resultType="java.lang.String">
-        select order_msg from zk_finger where student_id = #{studentId}
+        select top 1 order_msg from zk_finger where student_id = #{studentId}
     </select>
 
 </mapper>
\ No newline at end of file
--
libgit2 0.21.0