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我設置了以下ControllerAdvice以檢查在任何給定時間屬於某個用戶的「Request」對象的當前數量。不止一次更新ControllerAdvice屬性
@ControllerAdvice
public class ApplicationAdvice {
private static final Logger log = LoggerFactory.getLogger(ApplicationAdvice.class);
@Autowired
UsersRepository usersRepository;
@Autowired
RequestRepository requestRepository;
@ModelAttribute("numRequests")
public int numRequests(Principal principal, Model model) {
Users user = usersRepository.findOneByInitialName(principal.getName());
if (user != null) {
log.info(user.getId().toString());
// TODO Find all APPROVED requests if user is EMPLOYEE and all PENDING requests is user is MANAGER
// TODO Reset to 0 once we hit /requests page
// TODO Update this value on page refresh if not on /requests page
for (RequestDO requestDO : requestRepository.findByUsersAndStatus(user, RequestStatus.PENDING)) {
ArrayList<RequestDO> requestsList = new ArrayList<>();
requestsList.add(requestDO);
int numRequests = requestsList.size();
log.info(String.valueOf(numRequests));
model.addAttribute("numRequests", numRequests);
return numRequests;
}
}
return 0;
}
}
我通過屬性「numRequests」的片段,「標題」,在我的索引的模板:
<body>
<div class="container" style="width: 100% !important;">
<div th:replace="fragments/header :: header"></div>
<div th:replace="fragments/null :: null"></div>
<div th:replace="fragments/footer :: footer"></div>
</div>
</body>
裏面了header.html片段,我有一個短if statement
顯示的值此屬性:
<th:block th:if="${numRequests} != '0'">
<div style="float: left; margin-right: 10px;">My Requests</div>
<div style="overflow: hidden" class="circle">
<th:block th:text="${numRequests}"></th:block>
</div>
</th:block>
所以這一切工作正常。如果數據庫中有0個請求對象,則不顯示任何內容。但是,如果超過0,則會顯示一個循環通知標誌並正確顯示數字1.問題是無論創建了多少個請求對象,我仍然始終看到數字1.我確信,正確地查詢它們。我在邏輯上錯過了一些基本的東西嗎?也許屬性值只是出於某種原因更新一次?