go實現一個簡單的http代理

這是一個建立於 的文章，其中的資訊可能已經有所發展或是發生改變。

當請求http://localhost:8080/html/home.html 自動轉寄請求到 http://192.168.0.1/html/home.html，帶cookie請求，不過cookie要每次都手工抓取

package mainimport ("io/ioutil""log""net/http"//"strings")func statistic(w http.ResponseWriter, r *http.Request) {//r.URL.RequestURI()client := &http.Client{}req, err := http.NewRequest("GET", "http://192.168.0.1"+r.URL.Path, nil)if err != nil {log.Fatal(err)}req.Header.Set("Cookie", `SessionID=y151QXjszzoP5D2Lvfun0S/JPnFfquDtASLyWz+ZiSg6ngSt1gpakE2DChVN+hnfFOS6rFJ6gwUL+y0pAG+RpYYSogAFcZsuN919FXZle45UGP+ka6fZmceI9ew7Mj4Z;path=/;HttpOnly;`)resp, err := client.Do(req)if err != nil {log.Fatal(err)}defer resp.Body.Close()body, err := ioutil.ReadAll(resp.Body)if err != nil {log.Fatal(err)}w.Header().Set("Content-Type", resp.Header.Get("Content-Type"))w.Write(body)}func main() {mux := http.NewServeMux()mux.HandleFunc("/", statistic)err := http.ListenAndServe(":8080", mux)if err != nil {log.Fatal("ListenAndServe:", err)}}