javascript - 像 Javascript 一样在 C++ 中访问 HttpStatusCode

Question

我正在 ESP 上编写一个 Arduino 项目。

在 Javascript(客户端)中我有这个:

HttpStatusCode = { // Top10
  OK: 200,
  Created: 201,
  NoContent: 204,
  NotModified: 304,
  BadRequest: 400,
  Unauthorized: 401,
  Forbidden: 403,
  NotFound: 404,
  Conflict: 409,
  InternalServerError: 500
};

在我的代码中

   if( this.status == HttpStatusCode.OK ) {
     ...
   }

现在，在 C++(服务器端)中，您如何做同样的事情？

   if( status == HttpStatusCode.OK ) {
     ...
   }

Answer 1

在 C++11 及更高版本中，您可以使用 scoped enum ，例如:

enum class HttpStatusCode { // Top10
    OK = 200,
    Created = 201,
    NoContent = 204,
    NotModified = 304,
    BadRequest = 400,
    Unauthorized = 401,
    Forbidden = 403,
    NotFound = 404,
    Conflict = 409,
    InternalServerError = 500
};

否则，使用一个class或struct，其中包含static常量，例如:

struct HttpStatusCode {
    static const int OK = 200;
    static const int Created = 201;
    static const int NoContent = 204;
    static const int NotModified = 304;
    static const int BadRequest = 400;
    static const int Unauthorized = 401;
    static const int Forbidden = 403;
    static const int NotFound = 404;
    static const int Conflict = 409;
    static const int InternalServerError = 500;
};

无论哪种方式，您都可以像这样使用它们:

if( status == HttpStatusCode::OK )