在go net / http中获取http正文

I wanna get http body data use go.
My demo:

I set Content-Type: application/x-www-form-urlencoded in http request header, there is no error, but I can't get http body data. Http Request Data like this:

I just wanna get the http body, I don't wanna use the method request.FormValue. What should I do?

Invoke ParseForm before reading the form values

r.ParseForm()
for k, v := range r.Form {
    fmt.Println(k, v)
}

You need to run the request and get a response

    client := &http.Client{}

    resp, err := client.Do(r)
    if err != nil {
            fmt.Printf("Client Error: %v", err)
            panic(err)
    }

Then get the body

        body, err := ioutil.ReadAll(resp.Body)
        if err != nil {
                fmt.Printf("Error reading body: %v", err)
                panic(err)
        }