Question

如何实现Golang的http请求处理中间件

Answer 1

封装 http.FileServer 就可以了：
func OurLoggingHandler(h http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request)) {
fmt.Println(*r.URL)
h.ServeHTTP(w ,r)
})
}

func main() {
fileHandler := http.FileServer(http.Dir("/tmp"))
wrappedHandler := OurLoggingHandler(fileHandler)
http.ListenAndServe(":8080", wrappedHandler)
}