node.js 使用 Express 在动态路由上提供静态文件
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Serve Static Files on a Dynamic Route using Express
提问by Waylon Flinn
I want to serve static files as is commonly done with express.static(static_path)but on a dynamic
route as is commonly done with
我想像通常那样提供静态文件，express.static(static_path)但像通常那样在动态路由上提供
app.get('/my/dynamic/:route', function(req, res){
// serve stuff here
});
A solution is hinted at in this commentby one of the developers but it isn't immediately clear to me what he means.
一位开发人员在此评论中暗示了一个解决方案，但我并不清楚他的意思。
回答by Waylon Flinn
Okay. I found an example in the source code for Express' response object. This is a slightly modified version of that example.
好的。我在 Express' response object的源代码中找到了一个示例。这是该示例的略微修改版本。
app.get('/user/:uid/files/*', function(req, res){
var uid = req.params.uid,
path = req.params[0] ? req.params[0] : 'index.html';
res.sendFile(path, {root: './public'});
});
It uses the res.sendFilemethod.
它使用该res.sendFile方法。
NOTE: security changes to sendFilerequire the use of the rootoption.
注意：安全更改sendFile需要使用该root选项。
回答by Jeff Tian
I use below code to serve the same static files requested by different urls:
我使用下面的代码来提供不同 url 请求的相同静态文件：
server.use(express.static(__dirname + '/client/www'));
server.use('/en', express.static(__dirname + '/client/www'));
server.use('/zh', express.static(__dirname + '/client/www'));
Although this is not your case, it may help others who got here.
虽然这不是你的情况，但它可能会帮助到这里的其他人。
回答by prograhammer
You can use res.sendfileor you could still utilize express.static:
您可以使用res.sendfile或仍然可以使用express.static：
const path = require('path');
const express = require('express');
const app = express();
// Dynamic path, but only match asset at specific segment.
app.use('/website/:foo/:bar/:asset', (req, res, next) => {
req.url = req.params.asset; // <-- programmatically update url yourself
express.static(__dirname + '/static')(req, res, next);
});
// Or just the asset.
app.use('/website/*', (req, res, next) => {
req.url = path.basename(req.originalUrl);
express.static(__dirname + '/static')(req, res, next);
});
回答by fvlinden
This should work:
这应该有效：
app.use('/my/dynamic/:route', express.static('/static'));
app.get('/my/dynamic/:route', function(req, res){
// serve stuff here
});
Documentation states that dynamic routes with app.use()works.
See https://expressjs.com/en/guide/routing.html
文档说明动态路由app.use()有效。见https://expressjs.com/en/guide/routing.html
