diff --git a/src/main/java/com/gis3c/ol/dao/LayerDao.java b/src/main/java/com/gis3c/ol/dao/LayerDao.java
index e463425..50c5410 100644
--- a/src/main/java/com/gis3c/ol/dao/LayerDao.java
+++ b/src/main/java/com/gis3c/ol/dao/LayerDao.java
@@ -21,6 +21,8 @@ public interface LayerDao {
     public Layer findeLayerByName(String layerName);
 
     public Integer insertLayer(Layer layer);
-
+    public Integer bindSource(
+            @Param("layerId") String layerId,
+            @Param("sourceId") String sourceId);
     public Integer deleteLayersById(Set<String> layerIds);
 }
diff --git a/src/main/java/com/gis3c/ol/service/LayerService.java b/src/main/java/com/gis3c/ol/service/LayerService.java
index 34335bf..d9c17f2 100644
--- a/src/main/java/com/gis3c/ol/service/LayerService.java
+++ b/src/main/java/com/gis3c/ol/service/LayerService.java
@@ -17,6 +17,6 @@ public interface LayerService {
     public Layer findeLayerByName(String layerName);
 
     public Integer insertLayer(Layer layer);
-
+    public Integer bindSource(String layerId,String sourceId);
     public Integer deleteLayersById(Set<String> layerIds);
 }
diff --git a/src/main/java/com/gis3c/ol/service/impl/LayerServiceImpl.java b/src/main/java/com/gis3c/ol/service/impl/LayerServiceImpl.java
index aebe186..d710d82 100644
--- a/src/main/java/com/gis3c/ol/service/impl/LayerServiceImpl.java
+++ b/src/main/java/com/gis3c/ol/service/impl/LayerServiceImpl.java
@@ -57,6 +57,11 @@ public class LayerServiceImpl implements LayerService {
         return layerDao.insertLayer(layer);
     }
 
+    @Override
+    public Integer bindSource(String layerId, String sourceId) {
+        return layerDao.bindSource(layerId,sourceId);
+    }
+
     @Override
     public Integer deleteLayersById(Set<String> layerIds) {
         return layerDao.deleteLayersById(layerIds);
diff --git a/src/test/java/com/gis3c/spatial/App.java b/src/test/java/com/gis3c/spatial/App.java
index 068e12a..08250aa 100644
--- a/src/test/java/com/gis3c/spatial/App.java
+++ b/src/test/java/com/gis3c/spatial/App.java
@@ -29,17 +29,8 @@ public class App {
         MapService mapService = context.getBean(MapService.class);
         TestService testService = context.getBean(TestService.class);
 
-        List<String> list = Arrays.asList(new String[]{"a","b","c"});
-
-        list.stream().forEach(u -> {
-            if("a".equals(u)){
-                System.out.println(u.toUpperCase());
-            }else {
-                System.out.println(u);
-            }
-        });
-
-
+        Integer result = layerService.bindSource("aabb842e-239e-491d-9c70-a2cec1f65886","d67de989-d351-4ba2-b3ac-021130ae19d4");
+        System.out.println(result);
 
 //        List<Source> sourceList = sourceService.findSourceByType(new String[]{"a","b","c"});
 
diff --git a/src/test/resources/mappings/ol/LayerDao.xml b/src/test/resources/mappings/ol/LayerDao.xml
index 44d0751..4378887 100644
--- a/src/test/resources/mappings/ol/LayerDao.xml
+++ b/src/test/resources/mappings/ol/LayerDao.xml
@@ -90,6 +90,11 @@
 			, #{description}
 		);
 	</insert>
+	<update id="bindSource">
+		UPDATE c3gis_ol_layer
+		SET source = #{sourceId, javaType=java.lang.String}
+		WHERE layerid = #{layerId, javaType=java.lang.String}
+	</update>
 
 	<delete id="deleteLayersById" parameterType="java.util.Set">
 		delete from c3gis_ol_layer