diff --git a/server/routers/back-new/middleware/auth.js b/server/routers/back-new/middleware/auth.js
new file mode 100644
index 0000000..d1cc427
--- /dev/null
+++ b/server/routers/back-new/middleware/auth.js
@@ -0,0 +1,11 @@
+// 简单token认证中间件，支持token-3格式
+module.exports = function (req, res, next) {
+  const auth = req.headers.authorization;
+  if (auth && auth.startsWith('Bearer token-')) {
+    const id = parseInt(auth.replace('Bearer token-', ''));
+    if (!isNaN(id)) {
+      req.user = { id };
+    }
+  }
+  next();
+}; 
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