gorilla 多路复用器排除扩展请求

Question

尝试使用 github.com/gorilla/mux 配置 go 服务器路由以响应所有带有 index.html 的请求，但排除扩展名为 .jpg|.js|.png 的请求

由于扩展名而被排除的静态文件将被路由到文件服务器。配置。

尝试失败

  func main() {
        r := mux.NewRouter()

        r.HandleFunc("/{path:^.*([!js|jpg|png|gif])$}", func(w http.ResponseWriter, r *http.Request) {
            http.ServeFile(w, r, "dist/index.html")
        })

        r.PathPrefix("/").Handler(http.StripPrefix("/", http.FileServer(http.Dir("dist"))))

        http.Handle("/", r)
        http.ListenAndServe(":8000", nil)
    }

Answer 1

欢迎更好的方法，希望使用正则表达式，这样事情就完好无损，没有疯狂的 if/else 条件

func main() {
    r := mux.NewRouter()

    r.HandleFunc("/{path:.*}", func(w http.ResponseWriter, r *http.Request) {
        if HasSuffix(r.URL.Path, []string{"js", "css", "gif", "jpeg", "woff2", "woff", "ttf"}) == false {
            fmt.Println("serving index")
            http.ServeFile(w, r, "dist/index.html")
        } else {
            http.ServeFile(w, r, "dist/"+r.URL.Path)
        }
    })

    //r.PathPrefix("/").Handler(http.StripPrefix("/", http.FileServer(http.Dir("dist"))))

    http.Handle("/", r)
    http.ListenAndServe(":8000", nil)
}

//HasSuffix check if url has suffix
func HasSuffix(path string, parts []string) bool {
    for _, part := range parts {
        fmt.Println("checking if part:" + part + " exists in path:" + path)
        if strings.HasSuffix(path, part) == true {
            return true
        }
    }
    return false
}