在 Golang 中发送接收 http 标头

Question

func main() {

    http.HandleFunc("/", foo)

    log.Println("Listening...")

    http.ListenAndServe(":6001", nil)

}

func foo(w http.ResponseWriter, r *http.Request) {

    w.Header().Set("successfull", "A Go Web Server")

    fi := path.Join("templates/VastPlayer", "TempVide_.txt")

    tmpl, err := template.ParseFiles(fi)

    if err != nil {

        w.Header().Set("Error", err.Error())

        http.Error(w, err.Error(), http.StatusInternalServerError)

    }

    if err := tmpl.Execute(w, ""); err != nil {

        w.Header().Set("Error", err.Error())

        http.Error(w, err.Error(), http.StatusInternalServerError)

    }

}

如果我给出一个有效的模板，我会在标题上得到“successfull”：“A Go Web Server”，但是如果我没有给出现有的模板，我会在标题上得到 502 Bad Gateway 和 this

HTTP/1.1 502 Bad Gateway

Server: nginx/1.8.0

Date: Mon, 06 Jul 2015 15:19:31 GMT

Content-Type: text/html

Content-Length: 574

Connection: keep-alive

我想知道是否有办法发送我通过标头获得的错误，我的意思是

模板/VastPlayer/TempVide_.txt：没有这样的文件或目录

Answer 1

发送w.Header().Add("Status", "200")w.Header().Add("Body", "Book Added Successfully")收到fmt.Println("response Status:", resp.Header.Get("Status"))fmt.Println("response Body:", resp.Header.Get("Body"))