如何将GET请求重定向到包含一些数据的POST请求?

当用户通过GET请求点击某个url时,我想将他们重定向到另一个位置的POST请求。

package main


import (
    "bytes"
    "fmt"
    "io/ioutil"
    "log"
    "net/http"
    "net/url"
)

func old(w http.ResponseWriter, r *http.Request) {
    newURL := "/new"
    var bdy = []byte(`title=Buy cheese and bread for breakfast.`)

    r.Method = "POST"
    r.URL, _ = url.Parse(newURL)
    r.RequestURI = newURL
    r.Body = ioutil.NopCloser(bytes.NewReader(bdy))
    r.Header.Set("Content-Type", "application/x-www-form-urlencoded")
    http.Redirect(w, r, newURL, 302)
}

func new(w http.ResponseWriter, r *http.Request) {
    r.ParseForm()
    fmt.Printf("Method:%v\n", r.Method)
    fmt.Printf("Title:%v\n", r.Form.Get("title"))
}

func main() {
    http.HandleFunc("/", old)
    http.HandleFunc("/new", new)
    port := 8000
    fmt.Printf("listening on %v\n", port)
    if err := http.ListenAndServe(fmt.Sprintf(":%v", port), nil); err != nil {
        log.Fatal("ListenAndServe: ", err)
    }
}

当我点击“/”时,我最终被重定向到“/new”,但有一个GET请求,没有表单数据:

Method:GET
Title:

如果我卷曲“/新的”直接我得到:

curl -XPOST localhost:8000/new -d "title=Buy cheese and bread for breakfast."

Method:POST
Title:Buy cheese and bread for breakfast.