Node.js Express路由器中的正则表达式 [英] Regular Expression in Node.js Express Router

问题描述

我试图找到一种将正则表达式输入到快速路由URL中，然后通过请求对象访问URL的可变部分的方法.具体来说，我想路由到网址"/posts/" +任何数字.有办法吗?

I have tried to find a way to enter regular expression into an express routing URL and then access the variable portion of the URL through the request object. Specifically I want to route to the url "/posts/" + any number of digits. Is there a way to do this?

示例:

/posts/54
/posts/2
/posts/546

推荐答案

这应该做到:

app.get('/posts/:id(\\d+)', function(req, res) {
    // id portion of the request is available as req.params.id
});

编辑:在路径中添加了正则表达式以将其限制为数字

EDIT: added regex to path to limit it to digits

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