diff --git a/ftb/src/main/java/ftb/test/controller/CultureClockInController.java b/ftb/src/main/java/ftb/test/controller/CultureClockInController.java
index 8afeb76..9cc297b 100644
--- a/ftb/src/main/java/ftb/test/controller/CultureClockInController.java
+++ b/ftb/src/main/java/ftb/test/controller/CultureClockInController.java
@@ -69,8 +69,8 @@ public class CultureClockInController {
      * @param lastCombo 上次组合
      * @param response HttpServletResponse
      */
-    @GetMapping(value = "/random-preview/base641")
-    public ActionResult<Base64ImageVo> getRandomPicPreviewBase64(@RequestParam(value = "lastCombo1", required = false) String lastCombo, HttpServletRequest request, HttpServletResponse response) throws Exception {
+    @PostMapping(value = "/random-preview/base64")
+    public ActionResult<Base64ImageVo> getRandomPicPreviewBase64(@RequestParam(value = "lastCombo", required = false) String lastCombo, HttpServletRequest request, HttpServletResponse response) throws Exception {
 
         MutablePair<String, BufferedImage> pair = cultureClockInService.getRandomPicPreview(lastCombo, requestUrl);
         if (pair == null || pair.getRight() == null) {