如何使用相同的端口地址和不同的句柄模式同时提供网页和 API 路由 [英] How do I serve both web pages and API Routes by using same port address and different Handle pattern

问题描述

我有一个带有 CRUD 操作的简单 Web 应用程序，我想使用相同的端口地址和不同的句柄模式来提供网页和 API 路由.如下，

I have simple web application with CRUD operation, I want to serve web pages and API routes using same port address and different Handle pattern. As follows,

fs := http.FileServer(http.Dir("server/webapps/play_maths"))
http.Handle("/", fs) 

http.Handle("/api", call API routes)

以下是我的 API 路由

Following is my API routes

func UserRoutes() *mux.Router  {
    var router = mux.NewRouter()
    router = mux.NewRouter().StrictSlash(true)
    router.HandleFunc("/user/create", api.CreateUser)
    router.HandleFunc("/user/get/all", api.GetAllUsers)
    return router
}

推荐答案

net/http 包开箱即用.引用自 http.ServeMux:

模式命名固定的根路径，如/favicon.ico"，或根子树，如/images/"(注意尾部斜杠).较长的模式优先于较短的模式，因此如果/images/"和/images/thumbnails/"都注册了处理程序，则将为以/images"开头的路径调用后一个处理程序/thumbnails/"，前者将接收对/images/"子树中任何其他路径的请求.

Patterns name fixed, rooted paths, like "/favicon.ico", or rooted subtrees, like "/images/" (note the trailing slash). Longer patterns take precedence over shorter ones, so that if there are handlers registered for both "/images/" and "/images/thumbnails/", the latter handler will be called for paths beginning "/images/thumbnails/" and the former will receive requests for any other paths in the "/images/" subtree.

因此，您可以简单地将文件处理程序注册到路径 /，并将 API 处理程序注册到例如/api/ 路径.在这种情况下，任何以 /api/ 开头的请求都将被定向到 API 处理程序，而任何其他请求将被定向到文件处理程序.

So simply you can register your file handler to path /, and register an API handler to e.g. /api/ path. In this scenario any requests that start with /api/ will be directed to the API handler, and any other requests will be directed to the file handler.

请注意，这当然意味着如果 /api/ 文件夹中存在文件(或者更具体地说，其请求路径以 /api/ 开头)，它们由于上述原因，将无法访问.

Note that this of course means if there are files that are in the /api/ folder (or more specifically whose request paths start with /api/), they won't be reachable for the above mentioned reason.

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