return download time

src/main/java/com/uas/search/controller/IndexController.java

@@ -67,13 +67,19 @@ public class IndexController {
     @RequestMapping("/multiDownloadComponent")
     @ResponseBody
     public String multiDownloadComponent(Integer threads, Integer startFileIndex, Integer endFileIndex, HttpServletRequest request) {
-        return "Downloaded: "+ indexService.multiDownloadComponent(threads, startFileIndex, endFileIndex);
+        long start = System.currentTimeMillis();
+        String message= "Downloaded: "+ indexService.multiDownloadComponent(threads, startFileIndex, endFileIndex);
+        message += String.format(", Time: %.2fs", (System.currentTimeMillis()-start)/1000.0);
+        return message;
     }
 
     @RequestMapping("/multiDownloadGoods")
     @ResponseBody
     public String multiDownloadGoods(Integer threads, Integer startFileIndex, Integer endFileIndex, HttpServletRequest request) {
-        return "Downloaded: "+ indexService.multiDownloadGoods(threads, startFileIndex, endFileIndex);
+        long start = System.currentTimeMillis();
+        String message= "Downloaded: "+ indexService.multiDownloadGoods(threads, startFileIndex, endFileIndex);
+        message += String.format(", Time: %.2fs", (System.currentTimeMillis()-start)/1000.0);
+        return message;
     }
 
     @RequestMapping("/listen/start")