修改

Change-Id: I18193ed65cb577ff03f82079a7c0a4d98ca3f236
diff --git a/src/main/java/com/pt/controller/PostController.java b/src/main/java/com/pt/controller/PostController.java
index 387cc2d..0ab86ed 100644
--- a/src/main/java/com/pt/controller/PostController.java
+++ b/src/main/java/com/pt/controller/PostController.java
@@ -92,7 +92,9 @@
             posts.removeIf(post -> !post.getPublishDate().toString().equals(date));
         }
         ans.put("result", "Post retrieved successfully");
-        ans.put("post", posts);
+        ans.put("data", Map.of(
+                "post", posts
+        ));
         return ResponseEntity.ok(ans);
     }