diff --git a/base/static/base/script/map.js b/base/static/base/script/map.js
index f0b29ff..273f43a 100644
--- a/base/static/base/script/map.js
+++ b/base/static/base/script/map.js
@@ -21,7 +21,7 @@ function initMap(id, type) {
     var tMl = new ol.layer.Tile({
         title: "天地图路网",
         source: new ol.source.XYZ({
-            url: "http://t4.tianditu.com/DataServer?T=vec_w&x={x}&y={y}&l={z}"
+            url: "http://t4.tianditu.com/DataServer?T=vec_w&x={x}&y={y}&l={z}&tk=16d2779796f67de83223d5d3ec42d34b"
         })
     });
     map.addLayer(tMl);
@@ -30,7 +30,7 @@ function initMap(id, type) {
     var tAL = new ol.layer.Tile({
         title: "天地图文字标注",
         source: new ol.source.XYZ({
-            url: 'http://t3.tianditu.com/DataServer?T=cva_w&x={x}&y={y}&l={z}'
+            url: 'http://t3.tianditu.com/DataServer?T=cva_w&x={x}&y={y}&l={z}&tk=16d2779796f67de83223d5d3ec42d34b'
         })
     });
     map.addLayer(tAL);
diff --git a/graphics/static/graphics/script/map.js b/graphics/static/graphics/script/map.js
index 40a0cfe..3e53bec 100644
--- a/graphics/static/graphics/script/map.js
+++ b/graphics/static/graphics/script/map.js
@@ -274,7 +274,7 @@ var initTianDiTuMapLayer = function (map) {
     var tMl = new ol.layer.Tile({
         title: "天地图路网",
         source: new ol.source.XYZ({
-            url: "http://t4.tianditu.com/DataServer?T=vec_w&x={x}&y={y}&l={z}"
+            url: "http://t4.tianditu.com/DataServer?T=vec_w&x={x}&y={y}&l={z}&tk=16d2779796f67de83223d5d3ec42d34b"
         })
     });
     map.addLayer(tMl);
@@ -287,7 +287,7 @@ var initTianDiTuSatelliteLayer = function (map) {
         visible: false,
         title: "天地图卫星影像",
         source: new ol.source.XYZ({
-            url: 'http://t0.tianditu.com/DataServer?T=img_w&x={x}&y={y}&l={z}'
+            url: 'http://t0.tianditu.com/DataServer?T=img_w&x={x}&y={y}&l={z}&tk=16d2779796f67de83223d5d3ec42d34b'
         })
     });
     map.addLayer(tSL);
@@ -299,7 +299,7 @@ var initTianDiTuAnnotationLayer = function (map) {
     var tAL = new ol.layer.Tile({
         title: "天地图文字标注",
         source: new ol.source.XYZ({
-            url: 'http://t3.tianditu.com/DataServer?T=cva_w&x={x}&y={y}&l={z}'
+            url: 'http://t3.tianditu.com/DataServer?T=cva_w&x={x}&y={y}&l={z}&tk=16d2779796f67de83223d5d3ec42d34b'
         })
     });
     map.addLayer(tAL);
diff --git a/graphics/templates/graphics/openlayers.html b/graphics/templates/graphics/openlayers.html
index 0a2ac9a..a41ecb3 100644
--- a/graphics/templates/graphics/openlayers.html
+++ b/graphics/templates/graphics/openlayers.html
@@ -124,7 +124,7 @@
         title: "天地图路网",
         source: new ol.source.XYZ({
 
-            url: "http://t4.tianditu.com/DataServer?T=vec_w&x={x}&y={y}&l={z}"
+            url: "http://t4.tianditu.com/DataServer?T=vec_w&x={x}&y={y}&l={z}&tk=16d2779796f67de83223d5d3ec42d34b"
         }),
 
     });
@@ -134,7 +134,7 @@
     var tian_di_tu_annotation = new ol.layer.Tile({
         title: "天地图文字标注",
         source: new ol.source.XYZ({
-            url: 'http://t3.tianditu.com/DataServer?T=cva_w&x={x}&y={y}&l={z}'
+            url: 'http://t3.tianditu.com/DataServer?T=cva_w&x={x}&y={y}&l={z}&tk=16d2779796f67de83223d5d3ec42d34b'
         })
     });
 
@@ -150,7 +150,7 @@
     var tian_di_tu_satellite_layer = new ol.layer.Tile({
         title: "天地图卫星影像",
         source: new ol.source.XYZ({
-            url: 'http://t0.tianditu.com/DataServer?T=img_w&x={x}&y={y}&l={z}'
+            url: 'http://t0.tianditu.com/DataServer?T=img_w&x={x}&y={y}&l={z}&tk=16d2779796f67de83223d5d3ec42d34b'
         })
     });
 
diff --git a/metadata/models.py b/metadata/models.py
index 1aa6a24..d97cca3 100644
--- a/metadata/models.py
+++ b/metadata/models.py
@@ -202,7 +202,7 @@ class LineItem(models.Model):
     id = models.UUIDField('id', primary_key=True, default=uuid.uuid4)
     quantity = models.IntegerField(default=0)
     cart = models.ForeignKey(Cart, null=True)
-    metadata = models.ForeignKey(Metadata, on_delete=models.SET_NULL)
+    metadata = models.ForeignKey(Metadata, on_delete=models.CASCADE)
     order = models.ForeignKey(Order, null=True)
 
 
diff --git a/metadata/static/metadata/script/map.js b/metadata/static/metadata/script/map.js
index 57a8ee3..c9ebe65 100644
--- a/metadata/static/metadata/script/map.js
+++ b/metadata/static/metadata/script/map.js
@@ -20,7 +20,7 @@ function initMap() {
     var tMl = new ol.layer.Tile({
         title: "天地图路网",
         source: new ol.source.XYZ({
-            url: "http://t4.tianditu.com/DataServer?T=vec_w&x={x}&y={y}&l={z}"
+            url: "http://t4.tianditu.com/DataServer?T=vec_w&x={x}&y={y}&l={z}&tk=16d2779796f67de83223d5d3ec42d34b"
         })
     });
     map.addLayer(tMl);
@@ -29,7 +29,7 @@ function initMap() {
     var tAL = new ol.layer.Tile({
         title: "天地图文字标注",
         source: new ol.source.XYZ({
-            url: 'http://t3.tianditu.com/DataServer?T=cva_w&x={x}&y={y}&l={z}'
+            url: 'http://t3.tianditu.com/DataServer?T=cva_w&x={x}&y={y}&l={z}&tk=16d2779796f67de83223d5d3ec42d34b'
         })
     });
     map.addLayer(tAL);
diff --git a/metadata/templates/metadata/detail.html b/metadata/templates/metadata/detail.html
index 8a9b0c7..fa25100 100644
--- a/metadata/templates/metadata/detail.html
+++ b/metadata/templates/metadata/detail.html
@@ -245,7 +245,7 @@
                 title: "天地图路网",
                 source: new ol.source.XYZ({
 
-                    url: "http://t4.tianditu.com/DataServer?T=vec_w&x={x}&y={y}&l={z}"
+                    url: "http://t4.tianditu.com/DataServer?T=vec_w&x={x}&y={y}&l={z}&tk=16d2779796f67de83223d5d3ec42d34b"
                 }),
 
             });
@@ -255,7 +255,7 @@
             var tian_di_tu_annotation = new ol.layer.Tile({
                 title: "天地图文字标注",
                 source: new ol.source.XYZ({
-                    url: 'http://t3.tianditu.com/DataServer?T=cva_w&x={x}&y={y}&l={z}'
+                    url: 'http://t3.tianditu.com/DataServer?T=cva_w&x={x}&y={y}&l={z}&tk=16d2779796f67de83223d5d3ec42d34b'
                 })
             });