fix: date parsing bug in jwc.ts (#15326)

* 添加了新的RSSHub路由，支持Radar ，以及修改了对应的文档

新增了针对南昌大学教务处通知的RSSHub路由，支持Radar。
同时修改了RSShub文档

* Removed redundant settings and fixed the year.

删去了多余的代码，更正了正确的年份

* 修改radar.js来修复问题

原来的radar无法正确识别网站，原来是url错误了，现在已经更改

* Update jwc.js

* Refactor jwc.ts and remove unused files

* Update dependencies

* Refactor jwc.ts and remove unused files

* Refactor jwc.ts and update newsDate calculation

* Optimized date retrieval code: consolidated year and month retrieval into a single line

* style: auto format

* Refactor jwc.ts: Consolidate date retrieval code

* Revert "Refactor jwc.ts: Consolidate date retrieval code"

This reverts commit 353f70745cff2eff950d115a518b9f5750a4b1c7.

* Revert "Optimized date retrieval code: consolidated year and month retrieval into a single line"

This reverts commit e38bc31ab412b79842e74b8c86a1fe39277e2ca4.

* Refactor jwc.ts: Consolidate date retrieval code and optimize newsDate calculation

---------

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

lib/routes/ncu/jwc.ts

@@ -31,6 +31,9 @@ async function handler() {
     const baseUrl = 'https://jwc.ncu.edu.cn';
     const response = await got(baseUrl);
     const $ = load(response.body);
+    const currentDate = new Date();
+    const currentYear = currentDate.getFullYear();
+    const currentMonth = currentDate.getMonth() + 1;
 
     const list = $('.box3 .inner ul.img-list li');
 
@@ -38,6 +41,7 @@ async function handler() {
         title: '南昌大学教务处',
         link: baseUrl,
         description: '南昌大学教务处',
+
         item:
             list &&
             list.toArray().map((item) => {
@@ -46,12 +50,19 @@ async function handler() {
                 const date = el.text().split('】')[0].replace('【', '').trim();
                 const title = linkEl.attr('title');
                 const link = `${baseUrl}/${linkEl.attr('href')}`;
-                const month = date.slice(0, 2);
+
+                const newsDate = parseDate(date, 'MM-DD');
+                const newsMonth = newsDate.getMonth() + 1;
+
+                // If the news month is greater than the current month, subtract 1 from the year
+                const year = newsMonth > currentMonth ? currentYear - 1 : currentYear;
+
+                newsDate.setFullYear(year);
 
                 return {
                     title,
                     link,
-                    pubDate: parseDate(date, 'MM-DD').setFullYear(month < 6 ? new Date().getFullYear() - 1 : new Date().getFullYear()),
+                    pubDate: newsDate,
                 };
             }),
     };