From 491061acc7548e0ef2fa5093616d717482b33192 Mon Sep 17 00:00:00 2001
From: konjacpotato <changsongd@126.com>
Date: Fri, 27 Feb 2026 10:29:29 +0800
Subject: [PATCH] =?UTF-8?q?add=20=E6=95=B0=E6=8D=AE=E5=BA=93=E8=B6=85?=
 =?UTF-8?q?=E6=97=B6=E9=87=8D=E8=AF=95=E6=9C=BA=E5=88=B6?=
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---
 seek/douban_com/douban_group_seek.py | 38 +++++++++++++++++++++++++++-
 1 file changed, 37 insertions(+), 1 deletion(-)

diff --git a/seek/douban_com/douban_group_seek.py b/seek/douban_com/douban_group_seek.py
index 41c67c3..01bcc56 100644
--- a/seek/douban_com/douban_group_seek.py
+++ b/seek/douban_com/douban_group_seek.py
@@ -1,6 +1,7 @@
 import json
 import time
 from DrissionPage import Chromium, ChromiumOptions
+from psycopg import OperationalError
 from config.database import SessionLocal
 from models.source_content import SourceContent
 from utils import logger
@@ -12,6 +13,40 @@ class DoubanGroupSeek:
         self.browser = Chromium(addr_or_opts=co)
         self.group_id = group_id
 
+    def fetch_with_retry(self, session, model, link, max_retries=3, base_delay=1):
+        """
+        带重试的数据库查询函数
+        :param session: SQLAlchemy 会话
+        :param model: 模型类
+        :param link: 要查询的链接
+        :param max_retries: 最大重试次数
+        :param base_delay: 初始延迟时间（秒）
+        :return: 查询结果或 None
+        """
+        for attempt in range(1, max_retries + 1):
+            try:
+                # 执行查询
+                result = session.query(model.id).filter(model.link == link).first()
+                return result  # 成功则返回结果
+            except OperationalError as e:
+                # 打印错误信息（可选）
+                logger.error(f"数据库查询失败 (尝试 {attempt}/{max_retries}): {e}")
+                # 回滚当前会话，避免事务挂起影响后续操作
+                session.rollback()
+                if attempt == max_retries:
+                    # 最后一次重试失败，抛出异常或记录错误后返回 None
+                    logger.info(f"已达到最大重试次数，放弃查询链接: {link}")
+                    raise  # 或者返回 None，根据业务决定
+                # 计算等待时间：指数退避
+                sleep_time = base_delay * (2 ** (attempt - 1))
+                time.sleep(sleep_time)
+            except Exception as e:
+                # 如果还想捕获其他数据库错误，可以统一处理
+                logger.error(f"数据库错误: {e}")
+                session.rollback()
+                raise  # 非临时性错误，直接抛出
+        return None  # 正常情况下不会执行到这里
+
     def seek(self):
         db = SessionLocal()
 
@@ -42,7 +77,8 @@ class DoubanGroupSeek:
         results = []
         for topic_title, topic_url, update_time in topics:
             # 检索数据库，根据topic_url查询是否已存在
-            existing_content = db.query(SourceContent.id).filter(SourceContent.link == topic_url).first()
+            # existing_content = db.query(SourceContent.id).filter(SourceContent.link == topic_url).first()
+            existing_content = self.fetch_with_retry(db, SourceContent, topic_url)
             if existing_content:
                 # logger.info(f"Topic already exists in database, skipping: {topic_title}:{topic_url}")
                 continue