fix(book_service): 修复帖子详情页面请求错误处理

- 添加requests.RequestException异常捕获和错误消息返回
- 重构URL构建逻辑到变量中提高代码可读性
- 移除调试打印语句中的baseUrl重复显示
- 在下载方法前添加注释分隔符增强代码结构

app/services/book_service.py

@@ -64,12 +64,18 @@ class BookService:
         return target
 
     def post_page(self, name, url):  # 帖子页面
-        print(f"详情页面 {self.setting["baseUrl"]}{url}")
-        response = self.session.get(f"{self.setting["baseUrl"]}{url}")
-        response.raise_for_status()
-        print(f"详情页面状态码：{str(response.status_code)}")
+        full_url = f"{self.setting['baseUrl']}{url}"
+        try:
+            response = self.session.get(full_url)
+            response.raise_for_status()
+        except requests.RequestException as e:
+            yield f"event: error\ndata: 请求帖子详情失败 {url}: {str(e)}\n\n"
+            return
+        print(f"详情页面 {str(response.status_code)} {full_url}")
+
         soup = BeautifulSoup(response.text, 'lxml')
         resource_boxs = soup.select('ignore_js_op')
+
         for i in resource_boxs:
             download_dir_path = self.download_path / self.setting["targetDate"]
             self.create_folder(download_dir_path, name)
@@ -193,6 +199,9 @@ class BookService:
         else:
             return element.select_one(".by em span").string
 
+    # ------------------------------------------------------------
+    # 下载
+    # ------------------------------------------------------------
     def book_download(self):
         print(os.getenv('aa'))
         self.create_folder(self.download_path, self.setting["targetDate"])  # 创建文件夹