Go Gorilla mux subrouter with static files

Question

问题

您好，我想创建一个使用路由器和子路由器显示 2 个页面和 2 个静态目录的 Web 服务器。

我不明白为什么在子路由器处理的静态服务器不工作时显示路由器提供的静态目录。

代码、文件系统方案和网页：显示和想要的如下所示。

文件系统方案

ProjectFolder/
    testFile
    test.go

代码

package main

import (
    "github.com/gorilla/mux"
    "net/http"
)

func index(w http.ResponseWriter, r *http.Request) {
    w.Write([]byte("Index"));
}

func main () {
    r := mux.NewRouter()
    sub := r.PathPrefix("/sub").Subrouter()
    r.HandleFunc("/", index)
    r.Handle("/static", http.StripPrefix("/static", http.FileServer(http.Dir("./"))))
    sub.Handle("/static", http.StripPrefix("/static", http.FileServer(http.Dir("./"))))
    sub.HandleFunc("/", index)

    http.ListenAndServe(":8080", r)
}

我想要在 Web 服务器中的页面

http://localhost:8080/ ----> (index)
http://localhost:8080/static ---> (presentation of the file systemfolder)
http://localhost:8080/sub/ ---> (index)
http://localhost:8080/sub/static ---> (presentation of the file system folder)

我在 Web 服务器中的页面

http://localhost:8080/ ----> (index)
http://localhost:8080/static ---> (presentation of the file system folder)
http://localhost:8080/sub/ ---> (index)
http://localhost:8080/sub/static ---> (404 page not found)

Answer 1

尝试将子文件服务器行更改为（包括subStripPrefix 调用中的路径）

sub.Handle("/static", http.StripPrefix("/sub/static", http.FileServer(http.Dir("./"))))

下面的代码对我有用

package main

import (
    "net/http"

    "github.com/gorilla/mux"
)

func index(w http.ResponseWriter, r *http.Request) {
    w.Write([]byte("Index"))
}

func main() {
    r := mux.NewRouter()
    r.Handle("/static", http.StripPrefix("/static", http.FileServer(http.Dir("./"))))
    r.HandleFunc("/", index)

    sub := r.PathPrefix("/sub").Subrouter()
    sub.Handle("/static", http.StripPrefix("/sub/static", http.FileServer(http.Dir("./"))))
    sub.HandleFunc("/", index)

    http.ListenAndServe(":8080", r)
}