update

src/main/java/cn/wepact/dfm/training/mapper/TUserMapper.xml

@@ -189,5 +189,12 @@
 
   <select id="findUserIdByUsername" resultType="java.lang.Long">
     SELECT id FROM t_user WHERE user_no = #{username}
-    </select>
+  </select>
+
+  <select id="batchFindUserIdByUsernames" resultType="cn.wepact.dfm.training.dto.entity.TUser">
+    SELECT id, user_no AS userNo FROM t_user WHERE user_no IN
+    <foreach collection="usernames" item="username" open="(" separator="," close=")">
+      #{username}
+    </foreach>
+  </select>
 </mapper>