diff --git a/shuili-system/src/main/java/com/kms/yg/znjg/domain/SyLayer.java b/shuili-system/src/main/java/com/kms/yg/znjg/domain/SyLayer.java
index e97ab6b6..aa9922ad 100644
--- a/shuili-system/src/main/java/com/kms/yg/znjg/domain/SyLayer.java
+++ b/shuili-system/src/main/java/com/kms/yg/znjg/domain/SyLayer.java
@@ -154,4 +154,9 @@ public class SyLayer implements Serializable {
      * 关联图层样式名称
      */
     private String relationStyleName;
+
+    /**
+     * 扩展字段，主要用来标识关联关系
+     */
+    private Object extendData;
 }
diff --git a/shuili-system/src/main/java/com/kms/yg/znjg/vo/LayerForm.java b/shuili-system/src/main/java/com/kms/yg/znjg/vo/LayerForm.java
index 1b248a50..847a56b0 100644
--- a/shuili-system/src/main/java/com/kms/yg/znjg/vo/LayerForm.java
+++ b/shuili-system/src/main/java/com/kms/yg/znjg/vo/LayerForm.java
@@ -42,6 +42,7 @@ public class LayerForm implements Serializable, Comparable<LayerForm> {
         layerForm.setData(syLayer.getData() == null ? "" : syLayer.getData());
         layerForm.setTileSetOption(syLayer.getTileSetOption() == null ? "" : syLayer.getTileSetOption());
         layerForm.setNameCn(syLayer.getServiceNameAlias() == null ? "" : syLayer.getServiceNameAlias());
+        layerForm.setExtendData(syLayer.getExtendData() == null ? "" : syLayer.getExtendData());
 //        if ("030100".equalsIgnoreCase(syLayer.getServiceType()) || "014000".equalsIgnoreCase(syLayer.getServiceType()) || "050100".equalsIgnoreCase(syLayer.getServiceType()) || "040100".equalsIgnoreCase(syLayer.getServiceType()) || "070100".equalsIgnoreCase(syLayer.getServiceType()) || "080100".equalsIgnoreCase(syLayer.getServiceType()) || "090100".equalsIgnoreCase(syLayer.getServiceType())) {
 //            layerForm.setPicture(syLayer.getPicture() == null ? "" : syLayer.getPicture());
 //            layerForm.setFormat(syLayer.getFormat() == null ? "" : syLayer.getFormat());
@@ -207,4 +208,9 @@ public class LayerForm implements Serializable, Comparable<LayerForm> {
      */
     private String relationServiceIndex;
 
+    /**
+     * 扩展字段，主要用来标识关联关系
+     */
+    private Object extendData;
+
 }
diff --git a/shuili-system/src/main/resources/mapper/yg/znjg/SyLayerMapper.xml b/shuili-system/src/main/resources/mapper/yg/znjg/SyLayerMapper.xml
index d4647242..c2b7c92e 100644
--- a/shuili-system/src/main/resources/mapper/yg/znjg/SyLayerMapper.xml
+++ b/shuili-system/src/main/resources/mapper/yg/znjg/SyLayerMapper.xml
@@ -30,6 +30,7 @@
         <result property="relationServiceName" column="relation_service_name" jdbcType="VARCHAR"/>
         <result property="relationStyleId" column="relation_style_id" jdbcType="VARCHAR"/>
         <result property="relationStyleName" column="relation_style_name" jdbcType="VARCHAR"/>
+        <result property="extendData" column="extend_data" jdbcType="OTHER"/>
     </resultMap>
 
     <sql id="Base_Column_List">
@@ -39,7 +40,7 @@
         service_type,service_index,annotation_service_index,pub_date,
         create_user,layer_3d_type,tile_size,
         tile_matrix_set,dir_id,dir_name,remark,format,data,tileset_option,is_layer_group,
-        relation_service_id,relation_service_name,relation_style_id,relation_style_name
+        relation_service_id,relation_service_name,relation_style_id,relation_style_name,extend_data
     </sql>
 
 
@@ -52,7 +53,7 @@
         pub_date,
         create_user,layer_3d_type,tile_size,
         tile_matrix_set,dir_id,dir_name,remark,format,data,tileset_option,is_layer_group,
-        relation_service_id,relation_service_name,relation_style_id,relation_style_name
+        relation_service_id,relation_service_name,relation_style_id,relation_style_name,extend_data
     </sql>
 
     <insert id="saveLayer">
@@ -83,6 +84,7 @@
             <if test="relationServiceName != null">relation_service_name,</if>
             <if test="relationStyleId != null">relation_style_id,</if>
             <if test="relationStyleName != null">relation_style_name,</if>
+            <if test="extendData != null">extend_data,</if>
             is_valid,
         </trim>
         values
@@ -112,6 +114,7 @@
             <if test="relationServiceName != null">#{relationServiceName,jdbcType=VARCHAR},</if>
             <if test="relationStyleId != null">#{relationStyleId,jdbcType=VARCHAR},</if>
             <if test="relationStyleName != null">#{relationStyleName,jdbcType=VARCHAR},</if>
+            <if test="extendData != null">#{extendData,jdbcType=VARCHAR},</if>
             1,
         </trim>
     </insert>
@@ -145,6 +148,7 @@
             <if test="relationServiceName != null">relation_service_name=#{relationServiceName,jdbcType=VARCHAR},</if>
             <if test="relationStyleId != null">relation_style_id=#{relationStyleId,jdbcType=VARCHAR},</if>
             <if test="relationStyleName != null">relation_style_name=#{relationStyleName,jdbcType=VARCHAR},</if>
+            <if test="extendData != null">extend_data=#{extendData,jdbcType=OTHER},</if>
         </set>
         where is_valid=1
         AND
@@ -177,7 +181,7 @@
         select *
         from bs_sgc_qqjd_layer sl
         where is_valid = 1
-        and sl.id = #{id,jdbcType=VARCHAR}
+          and sl.id = #{id,jdbcType=VARCHAR}
     </select>
 
     <select id="findLayerByLayerIds" resultMap="BaseResultMap">