我正在嘗試將 JSON 數(shù)據(jù)從 javascript 頁(yè)面 POST 到 golang 服務(wù)器，但我無(wú)法在兩端使用 SO 接受的答案找到任何 JSON 數(shù)據(jù)的痕跡。這篇文章展示了我在 Javascript 中發(fā)布我的 JSON的方式，這篇文章展示了我嘗試在 Go 中處理這個(gè) JSON 的方式。//js json post sendvar request = new XMLHttpRequest();request.open('POST', 'http://localhost:8080/aardvark/posts', true);request.setRequestHeader('Content-Type', 'application/json; charset=UTF-8');var data = {hat: "fez"};request.send(JSON.stringify(data));//Go json post responsefunc reply(w http.ResponseWriter, r *http.Request) {    w.Header().Set("Access-Control-Allow-Origin", "*")    w.Header().Set("Access-Control-Allow-Credentials", "true")    w.Header().Set("Access-Control-Allow-Headers", "Content-Type, Content-Length, Accept-Encoding, X-CSRF-Token, Authorization, accept, origin, Cache-Control, X-Requested-With")    w.Header().Set("Access-Control-Allow-Methods", "POST, OPTIONS, GET, PUT")    if err := r.ParseForm(); err != nil {        fmt.Println(err);    }    //this is my first impulse.  It makes the most sense to me.    fmt.Println(r.PostForm);          //out -> `map[]`  would be `map[string]string` I think    fmt.Println(r.PostForm["hat"]);   //out -> `[]`  would be `fez` or `["fez"]`    fmt.Println(r.Body);              //out -> `&{0xc82000e780 <nil> <nil> false true {0 0} false false false}`    type Hat struct {        hat string    }    //this is the way the linked SO post above said should work.  I don't see how the r.Body could be decoded.    decoder := json.NewDecoder(r.Body)    var t Hat       err := decoder.Decode(&t)    if err != nil {        fmt.Println(err);    }    fmt.Println(t);                  //out -> `{ }`}我不確定從這里還可以嘗試什么。我應(yīng)該改變什么才能使這項(xiàng)工作？