无法在Go Chi路由器中读取"request.Body“

func loggingMiddleware(next http.Handler) http.Handler {
    return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
        // 创建一个buffer来保存请求体的副本
        var bodyBytes []byte
        if r.Body != nil {
            bodyBytes, _ = ioutil.ReadAll(r.Body)
        }
        // 恢复请求体，以便后续处理程序可以读取它
        r.Body = ioutil.NopCloser(bytes.NewBuffer(bodyBytes))

        // 记录请求体
        log.Printf("Request body: %s", bodyBytes)

        next.ServeHTTP(w, r)
    })
}

func myHandler(w http.ResponseWriter, r *http.Request) {
    if r.Method == http.MethodGet {
        // GET请求通常没有请求体
        w.Write([]byte("GET request has no body"))
        return
    }

    body, err := ioutil.ReadAll(r.Body)
    if err != nil {
        http.Error(w, "Error reading request body", http.StatusInternalServerError)
        return
    }
    defer r.Body.Close()

    // 处理请求体
    fmt.Fprintf(w, "Request body: %s", body)
}

func myHandler(w http.ResponseWriter, r *http.Request) {
    var buf bytes.Buffer
    tee := io.TeeReader(r.Body, &buf)

    body, err := ioutil.ReadAll(tee)
    if err != nil {
        http.Error(w, "Error reading request body", http.StatusInternalServerError)
        return
    }
    defer r.Body.Close()

    // 现在你可以多次使用body的内容
    fmt.Fprintf(w, "Request body: %s", body)
}