下载后可任意编辑常用的 HTTP 协议状态码 200 - OK，服务器成功返回网页 - Standard response for successful HTTP requests.301 - Moved Permanently（永久跳转），请求的网页已永久跳转到新位置。 - This and all future requests should be directed to the given.403 - Forbidden（禁止访问）,服务器拒绝请求 - forbidden request (matches a deny filter) => HTTP 403 - The request was a legal request, but the server is refusing to respond to it.404 - Not Found,服务器找不到请求的页面。 - The requested resource could not be found but may be available again in the future.500 - Internal Server Error（内部服务器错误） - internal error in haproxy => HTTP 500 - A generic error message, given when no more specific message is suitable.502 - Bad Gateway（坏的网关）,一般是网关服务器请求后端服务时，后端服务没有根据 http 协议正确返回结果。 - the server returned an invalid or incomplete response => HTTP 502 - The server was acting as a gateway or proxy and received an invalid response from the upstream server.503 - Service Unavailable（服务当前不可用）,可能因为超载或停机维护。 - no server was available to handle the request => HTTP 503 - The server is currently unavailable (because it is overloaded or down for maintenance).504 - Gateway Timeout（网关超时）,一般是网关服务器请求后端服务时，后端服务没有在特定的时间内完成服务。 - the server failed to reply in time => HTTP 504 - The server was acting as a gateway or proxy and did not receive a timely response from the upstream server. 下载后可任意编辑更多：一些常见 HTTP 状态码为：200 – 服务器成功返回网页404 – 请求的网页不存在503 – 服务不可用常见 HTTP 状态码大全1xx（临时响应）表示临时响应并需要请求者继续执行操作的状态代码。代码 说明http 状态码 100 （继续） 请求者应当继续提出请求。 服务器返回此代码表示已收到请求的第一部分，正在等待其余部分。...
