diff --git a/WebRoot/upload/2D8937B7-A51C-4F1D-BDFB-4C4B05066217.xlsx b/WebRoot/upload/2D8937B7-A51C-4F1D-BDFB-4C4B05066217.xlsx
new file mode 100644
index 00000000..56699d54
Binary files /dev/null and b/WebRoot/upload/2D8937B7-A51C-4F1D-BDFB-4C4B05066217.xlsx differ
diff --git a/src/main/java/com/dsideal/QingLong/DataShare/Controller/DataShareController.java b/src/main/java/com/dsideal/QingLong/DataShare/Controller/DataShareController.java
index 415702c3..97ed929b 100644
--- a/src/main/java/com/dsideal/QingLong/DataShare/Controller/DataShareController.java
+++ b/src/main/java/com/dsideal/QingLong/DataShare/Controller/DataShareController.java
@@ -12,6 +12,7 @@ import com.jfinal.ext.interceptor.POST;
 import com.jfinal.kit.Kv;
 import com.jfinal.kit.PathKit;
 import com.jfinal.kit.PropKit;
+import com.jfinal.kit.StrKit;
 import com.jfinal.plugin.activerecord.Page;
 import com.jfinal.plugin.activerecord.Record;
 import com.jfinal.upload.UploadFile;
@@ -47,7 +48,7 @@ public class DataShareController extends Controller {
     @Before({POST.class})
     @IsLoginInterface({})
     @IsSysAdminInterface({"1"})
-    @EmptyInterface({"system_name","user_name"})
+    @EmptyInterface({"system_name", "user_name"})
     public void addSystem(String system_name, String user_name) {
         if (dm.isExistUserName(user_name)) {
             Kv kv = Kv.by("success", false);
@@ -109,8 +110,15 @@ public class DataShareController extends Controller {
     @IsSysAdminInterface({"1"})
     public void downloadXlsx(int system_id) {
         Record record = dm.getSystemById(system_id);
+        String url = record.getStr("url");
+        if (StrKit.isBlank(url)) {
+            Kv kv = Kv.by("success", false);
+            kv.set("message", "此系统还没有上传说明文档，无法下载！");
+            renderJson(kv);
+            return;
+        }
         String system_name = record.getStr("system_name");
-        String[] array = record.getStr("url").split("/");
+        String[] array = url.split("/");
         String file_name = array[array.length - 1];
         String basePath = PathKit.getWebRootPath() + "/upload/";
         renderFile(new File(basePath + file_name), "【" + system_name + "】文档说明.xlsx");
@@ -127,7 +135,15 @@ public class DataShareController extends Controller {
     @IsSysAdminInterface({"1"})
     public void previewXlsx(int system_id) {
         Record record = dm.getSystemById(system_id);
-        String[] array = record.getStr("url").split("/");
+        String url = record.getStr("url");
+        if (StrKit.isBlank(url)) {
+            Kv kv = Kv.by("success", false);
+            kv.set("message", "此系统还没有上传说明文档，无法预览！");
+            renderJson(kv);
+            return;
+        }
+
+        String[] array = url.split("/");
         String file_name = array[array.length - 1];
         String basePath = PathKit.getWebRootPath() + "/upload/";
         String realPath = basePath + file_name;