将meteor的铁路路由器parameter passing给模板callback

如何将铁路路由器parameter passing给Template.myTemplate.renderedcallback? 下面的路由和callback函数给两个console.logundefined

url

 http://localhost:3000/story/1234 

Router.js

 Router.map( function() { this.route('story', { path: '/story/:_id', template: 'story' }) }) 

story.js

 Template.story.rendered = function () { console.log('params: ', this.params) // undefined console.log('_id: ', this._id) // undefined } 

你有没有尝试过Router.current()。params?