教室编号生成调整

backend/roomroot-jwgl/src/main/java/com/roomroot/jwgl/mapper/ClassRoomMapper.java

@@ -20,4 +20,11 @@ public interface ClassRoomMapper extends BaseMapper<JSB> {
      * @return 分页结果
      */
     Page<JSB> selectPageList(Page<JSB> page, @Param("jsb") JSB jsb);
+
+    /**
+     * 获取最大教室编号（仅统计纯数字编号）
+     *
+     * @return 最大教室编号
+     */
+    String selectMaxJsbh();
 }

backend/roomroot-jwgl/src/main/java/com/roomroot/jwgl/mapper/ClassRoomMapper.xml

@@ -54,4 +54,8 @@
         ORDER BY 序号
     </select>
 
+    <select id="selectMaxJsbh" resultType="java.lang.String">
+        SELECT MAX(CAST(教室编号 AS INT)) FROM 教室表 WHERE DEL_FLAG = 0 AND REGEXP_LIKE(教室编号, '^[0-9]+$')
+    </select>
+
 </mapper>