代码语言：javascript复制
package main
import (
"fmt"
"io"
"net/http"
)
func main() {
http.HandleFunc("/", route)
e := http.ListenAndServe(":80", nil)
if e != nil {
fmt.Println(e)
}
}
func route(w http.ResponseWriter, r *http.Request) {
req, _ := http.NewRequest(r.Method, "", r.Body)
req.URL = r.URL
req.URL.Host = r.Host //"www.qq.com"
req.URL.Scheme = "http"
for _, v := range r.Cookies() {
req.AddCookie(v)
}
//req.Header = r.Header 这里的Header就不要使用了,使用的话他会自动跳转到https,代理就出问题了.
resp, err := http.DefaultClient.Do(req)
if err != nil {
fmt.Println("Here:", err)
return
}
for k, v := range resp.Header {
for _, value := range v {
w.Header().Add(k, value)
}
}
for _, cookie := range resp.Cookies() {
w.Header().Add("Set-Cookie", cookie.Raw)
}
w.WriteHeader(resp.StatusCode)
io.Copy(w, resp.Body)
resp.Body.Close()
r.Body.Close()
} </pre> 
