修改

@@ -98,7 +98,7 @@
     </select>
     <select id="getBdcqzsjbxxInfo" resultType="java.util.Map">
         select  * from (
-                           select c.id,
+                           select ROWNUM AS rowno,c.id,
                                   c.ywh,
                                   c.bdcdyh,
                                   c.bdcqzh,
@@ -126,7 +126,7 @@
                              and c.isxydzzz = '1'
                              and c.iscjdzzz = '0'
                              and c.ywh like '20%'
-                             and dbsj is not null ) where rn=1
+                             and dbsj is not null AND ROWNUM &lt;=20) where rn=1
     </select>
 
     <select id="getBdcqzsjbxxInfoByYwh" resultType="java.util.Map">