responseCode

表示三位字數的 HTTP 狀態碼 (Status-Code) 的?int。

• 1xx:Informational
• 2xx:Success
• 3xx:Redirection
• 4xx:Client Error
• 5xx:Server Error?

?

HTTP status codes returned by servers on the Internet.
從Internet返回的HTTP status代碼(HTTP 狀態字)
HTTP_STATUS_CONTINUE (100)
The request can be continued.
請求不能被繼續
HTTP_STATUS_SWITCH_PROTOCOLS (101)
The server has switched protocols in an upgrade header.
通過新的header服務器的協議被轉換了
HTTP_STATUS_OK (200)
The request completed successfully.
請求成功的完成
HTTP_STATUS_CREATED (201)
The request has been fulfilled and resulted in the creation of a new resource.
通過新的資源請求已經被完成
HTTP_STATUS_ACCEPTED (202)
The request has been accepted for processing, but the processing has not been completed.
請求已經被接受處理，但是處理還沒有完成
HTTP_STATUS_PARTIAL (203)
The returned meta information in the entity-header is not the definitive set available from the origin server.
從服務器返回的在entity-header中的meta信息是無效的
HTTP_STATUS_NO_CONTENT (204)
The server has fulfilled the request, but there is no new information to send back.
服務器實現了請求，但是沒有返回信息
HTTP_STATUS_RESET_CONTENT (205)
The request has been completed, and the client program should reset the document view that caused the request to be sent to allow the user to easily initiate another input action.
請求已經被完成，并且web程序(客戶端程序瀏覽器程序)已經重置了文檔視圖目錄（content），這個目錄很容易允許使用者用另一個動作發送請求
HTTP_STATUS_PARTIAL_CONTENT (206)
The server has fulfilled the partial GET request for the resource.
服務器已經為資源完成了部分GET請求
HTTP_STATUS_AMBIGUOUS (300)
The server couldn't decide what to return.
服務器不能判定返回什么
HTTP_STATUS_MOVED (301)
The requested resource has been assigned to a new permanent URI (Uniform Resource Identifier), and any future references to this resource should be done using one of the returned URIs.
被請求的資源已經被分配給新的URI,并且以后引用時都使用這個URIs資源。
HTTP_STATUS_REDIRECT (302)
The requested resource resides temporarily under a different URI (Uniform Resource Identifier).
請求的資源臨時在不同的uri下
HTTP_STATUS_REDIRECT_METHOD (303)
The response to the request can be found under a different URI (Uniform Resource Identifier) and should be retrieved using a GET HTTP verb on that resource.
請求的資源不能在不同的uri下找到，并且從新使用GET HTTP在服務器上從新檢索
HTTP_STATUS_NOT_MODIFIED (304)
The requested resource has not been modified.
請求的資源沒有被改變
HTTP_STATUS_USE_PROXY (305)
The requested resource must be accessed through the proxy given by the location field.
請求的資源必須通過特定的代理獲得
HTTP_STATUS_REDIRECT_KEEP_VERB (307)
The redirected request keeps the same HTTP verb. HTTP/1.1 behavior.
從定位請求，

400 Invalid syntax. 語法問題
401 Access denied. 訪問拒絕
402 Payment required. 必須完整
403 Request forbidden. 請求被禁止
404 Object not found. 對象沒有找到
405 Method is not allowed. 方法不允許
406 No response acceptable to client found. 客戶端沒有響應
407 Proxy authentication required. 代理需要驗證
408 Server timed out waiting for request. 等等請求時服務器斷開連接
409 User should resubmit with more info. 有沖突用戶應該進行檢查
410 Resource is no longer available. 資源不可用
411 Server refused to accept request without a length. 服務器拒絕接受沒有長度的請求
412 Precondition given in request failed. 放棄請求失敗的條件
413 Request entity was too large. 請求太大
414 Request Uniform Resource Identifier (URI) too long. 請求的URI 太長
415 Unsupported media type. 不支持MEDIA類型
449 Retry after doing the appropriate action. 在作了適當動作后重試
500 Internal server error. 服務器內部錯誤
501 Server does not support the functionality required to fulfill the request. 服務器不支持請求的功能
502 Error response received from gateway. 從網關收到錯誤應答
503 Temporarily overloaded. 過載
504 Timed out waiting for gateway. 等待網關時請求斷開
505 HTTP version not supported. 不支持HTTP的版本

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