我試圖將我的客戶端重定向到 https url。我試過這個：func index(w http.ResponseWriter, r *http.Request) { if r.URL.Scheme != "https" { http.Redirect(w, r, "https://"+r.URL.Host+r.URL.Path, 301) return }//....}但它給了我這樣的回應：$ curl -i http://localhostHTTP/1.1 301 Moved PermanentlyContent-Type: text/html; charset=utf-8Location: https:///Date: Sat, 24 Nov 2018 20:02:33 GMTContent-Length: 44<a href="https:///">Moved Permanently</a>.神秘的是Location: https:///這一行。我又看了一遍 go doc，發現：// URL specifies either the URI being requested (for server// requests) or the URL to access (for client requests).//// For server requests the URL is parsed from the URI// supplied on the Request-Line as stored in RequestURI. **For// most requests, fields other than Path and RawQuery will be// empty. (See RFC 7230, Section 5.3)**//// For client requests, the URL's Host specifies the server to// connect to, while the Request's Host field optionally// specifies the Host header value to send in the HTTP// request.URL *url.URL然后我明白了為什么它返回和空字符串r.URL.Host。我也試過r.Header.Get("Host")然后r.Header.Get("Origin")。它還給了我一個空字符串。還有其他獲取主機名的方法嗎？
2 回答
慕的地8271018
TA貢獻1796條經驗 獲得超4個贊
來自go doc http.request:
type Request struct {
...
// For incoming requests, the Host header is promoted to the
// Request.Host field and removed from the Header map.
...
Header Header
...
// For server requests Host specifies the host on which the
// URL is sought. Per RFC 2616, this is either the value of
// the "Host" header or the host name given in the URL itself.
...
Host string
因此，r.Host不使用r.Header.Get("Host")
繁星淼淼
TA貢獻1775條經驗 獲得超11個贊
嘗試使用 r.Host？
文檔說：
// For server requests Host specifies the host on which the URL
// is sought. Per RFC 7230, section 5.4, this is either the value
// of the "Host" header or the host name given in the URL itself.
那么也許試試看？
func index(w http.ResponseWriter, r *http.Request) {
if r.URL.Scheme != "https" {
http.Redirect(w, r, "https://"+r.Host+r.URL.Path, 301)
return
}
//....
}
- 2 回答
- 0 關注
- 160 瀏覽
添加回答
舉報
0/150
提交
取消