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🌐 HTTP 状态代码参考
HTTP 响应状态代码的完整参考及其含义和 例子。
1xx - Informational Responses
| Code | Name | Description |
|---|---|---|
| 100 | Continue | The server has received the request headers; client should proceed to send the request body. |
| 101 | Switching Protocols | The server is switching protocols as requested (e.g., upgrading to WebSocket). |
| 102 | Processing | The server is processing the request but no response is available yet (WebDAV). |
| 103 | Early Hints | Used to return some response headers before the final response. |
2xx - Success
| Code | Name | Description |
|---|---|---|
| 200 | OK 通用 | The request succeeded. The standard response for successful HTTP requests. |
| 201 | Created 通用 | The request succeeded and a new resource was created (typically for POST/PUT). |
| 202 | Accepted | The request has been accepted for processing but not yet completed (async operations). |
| 204 | No Content 通用 | The request succeeded but there's no content to return (often used for DELETE). |
| 206 | Partial Content | The server is delivering only part of the resource (used for range requests like video streaming). |
3xx - Redirection
| Code | Name | Description |
|---|---|---|
| 301 | Moved Permanently 通用 | The resource has been permanently moved to a new URL. Search engines update their links. |
| 302 | Found (Temp Redirect) | The resource temporarily resides at a different URL. |
| 303 | See Other | The response can be found at a different URL using GET method. |
| 304 | Not Modified 通用 | The resource hasn't changed since last request. Used for caching. |
| 307 | Temporary Redirect | Like 302, but the request method must not change (e.g., POST stays POST). |
| 308 | Permanent Redirect | Like 301, but the request method must not change. |
4xx - Client Errors
| Code | Name | Description |
|---|---|---|
| 400 | Bad Request 通用 | The server cannot process the request due to invalid syntax or malformed data. |
| 401 | Unauthorized 通用 | Authentication is required. The user must log in to access this resource. |
| 403 | Forbidden 通用 | The server refuses to authorize the request. Unlike 401, logging in won't help. |
| 404 | Not Found 通用 | The requested resource could not be found on the server. |
| 405 | Method Not Allowed | The HTTP method (GET, POST, etc.) is not supported for this resource. |
| 408 | Request Timeout | The server timed out waiting for the request. |
| 409 | Conflict | The request conflicts with the current state of the server (e.g., duplicate entry). |
| 413 | Payload Too Large | The request body exceeds the server's size limit. |
| 422 | Unprocessable Entity | The request was well-formed but has semantic errors (validation failures). |
| 429 | Too Many Requests 通用 | Rate limiting - the user has sent too many requests in a given time. |
5xx - Server Errors
| Code | Name | Description |
|---|---|---|
| 500 | Internal Server Error 通用 | A generic error when the server encounters an unexpected condition. |
| 501 | Not Implemented | The server does not support the functionality required to fulfill the request. |
| 502 | Bad Gateway 通用 | The server received an invalid response from an upstream server. |
| 503 | Service Unavailable 通用 | The server is temporarily unavailable (overloaded or down for maintenance). |
| 504 | Gateway Timeout | The server didn't receive a timely response from an upstream server. |
| 507 | Insufficient Storage | The server cannot store the representation needed to complete the request. |