没有这条路由吧，看了下了最新的express app.handle = function(req, res, done) { var router = this._router;

// final handler done = done || finalhandler(req, res, { env: this.get(‘env’), onerror: logerror.bind(this) });

// no routes if (!router) { debug(‘no routes defined on app’); done(); return; }

router.handle(req, res, done); };

是加了判断的，所以赶紧升级吧~~