服务器转发资源实现跨域是否可行? - V2EX
xiaoming1992

服务器转发资源实现跨域是否可行?

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  •   xiaoming1992 Oct 24, 2022 1841 views
    This topic created in 1297 days ago, the information mentioned may be changed or developed.

    assets.domainA.com 的资源不支持跨域,domainB.com 却希望跨域请求其上的资源,我打算在 domainB.com 上做中转,即,domainB.com前端发请求到自身的服务端,由服务端请求assets.domainA.com,得到结果后返回给前端。

    这样会不会有性能问题或其他我没想到的问题?

    // domainB.com 服务端 (Next.js) // api/cors.ts import request from 'request' export default function cors(req, rs) { // queryUrl is https://assets.domainA.com/xxx const queryUrl = req.query.assets const requestCallback = (err, _, body) => { if (err || !body) { res.status(408).json({ data: `request failed: ${err?.message}` }) } } request(queryUrl, requestCallback).pipe(res) } 
    KasuganoSoras
        1
    KasuganoSoras  
       Oct 25, 2022
    这不就是反向代理吗
    性能取决于你 domainB 的服务器宽带和硬件,以及你的服务器到 domainA 的访问速度,当然你可以自己做缓存机制来提高第二次请求的速度。另外主流的 Nginx 之类的服务端都支持反向代理和缓存,没必要自己造轮子
    xiaoming1992
        2
    xiaoming1992  
    OP
       Oct 25, 2022
    @KasuganoSoras 主要是我对 Nginx 不熟,不知道启用 Nginx 会不会影响 Next.js 的服务,且临时搜一搜的话,担心配置不到位,反而更多地方考虑不到。
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