fix：“优化获取公告接口”

src/main/java/com/szwl/controller/TNoticeController.java

@@ -61,21 +61,22 @@ public class TNoticeController {
         }
         TAdmin admin = tAdminService.getById(adminId);
         LambdaQueryWrapper<TNotice> query = Wrappers.lambdaQuery();
-        query.eq(TNotice::getStatus,0);
+        query.eq(TNotice::getStatus,"0");
         query.orderByDesc(TNotice::getCreateDate);
         List<TNotice> notices = noticeService.list(query);
-        if(notices == null){
-            return R.fail(ResponseCodesEnum.A0700,"没有公告");
-        }
-        TNotice tNotice = notices.get(0);
-        Long noticeId = admin.getNoticeId();
-        long time = tNotice.getCreateDate().getTime();
-        if (noticeId!=null) {
-            if(noticeId > time) {
-                return R.ok(null,"公告已读");
+        if(notices.size() > 0){
+            TNotice tNotice = notices.get(0);
+            Long noticeId = admin.getNoticeId();
+            long time = tNotice.getCreateDate().getTime();
+            if (noticeId!=null) {
+                if(noticeId > time) {
+                    return R.ok(null,"公告已读");
+                }
             }
+            return R.ok(tNotice,"获取成功");
+        } else {
+            return R.fail(ResponseCodesEnum.A0700,"没有公告");
         }
-        return R.ok(tNotice,"获取成功");
     }
     @GetMapping("/updateNotice")
     public ResponseModel<?> updateNotice(String adminId) {