第一次提交：阿龙电竞 Django 后端最新版本

dingdan/tongzhi_tasks.py

@@ -0,0 +1,71 @@
+# dingdan/tongzhi_tasks.py
+import logging
+from concurrent.futures import ThreadPoolExecutor, as_completed
+from a_long_dianjing.celery_app import app
+from yonghu.models import OfficialAccountUser
+from utils.weixin_broadcast import WeixinBroadcastSender
+
+logger = logging.getLogger('weixin_broadcast')
+
+
+@app.task(bind=True, max_retries=3, default_retry_delay=60)
+def dingdan_guangbo(self, order_info):
+    """
+    异步并发广播订单模板消息给所有关注服务号的用户
+    order_info 字典字段示例：
+    {
+        'dingdan_id': 'PT123456',
+        'game_type': '王者荣耀',
+        'amount': '88.00',
+        'order_desc': '星耀上王者'
+    }
+    """
+    sender = WeixinBroadcastSender()
+    template_data = sender.build_order_message_data(order_info)
+    order_id = order_info.get('dingdan_id')
+
+    # 查询所有已关注用户
+    try:
+        openids = list(
+            OfficialAccountUser.objects
+            .filter(is_subscribed=True)
+            .values_list('official_openid', flat=True)
+        )
+    except Exception as e:
+        logger.error(f'查询订阅用户失败: {e}')
+        raise self.retry(exc=e)
+
+    if not openids:
+        return {'success': True, 'msg': '无订阅用户'}
+
+    total = len(openids)
+    logger.info(f'📊 Celery 广播订单 {order_id} 开始，目标人数: {total}')
+
+    success = 0
+    fail = 0
+
+    # 20 个线程并发发送，微信接口耗时 200-500ms，1000 人约 15 秒完成
+    with ThreadPoolExecutor(max_workers=20) as executor:
+        future_map = {
+            executor.submit(sender.send_to_user, openid, template_data, order_id): openid
+            for openid in openids
+        }
+        for future in as_completed(future_map):
+            openid = future_map[future]
+            try:
+                res = future.result(timeout=30)
+                if res.get('success'):
+                    success += 1
+                else:
+                    fail += 1
+            except Exception as e:
+                fail += 1
+                logger.error(f'发送异常 {openid[:10]}...: {e}')
+
+    logger.info(f'🏁 广播完成：成功 {success}，失败 {fail}，总计 {total}')
+    return {
+        'success': True,
+        'total': total,
+        'success_count': success,
+        'fail_count': fail
+    }