在这篇文章中：

    HTTP状态码

    正常状态码 描述
    200 OK
    201 Created
    202 Accepted
    204 No Content
    错误状态码 描述
    400 Bad Request
    401 Unauthorized
    403 Forbidden
    404 Not Found
    405 Method Not Allowed
    409 Conflict
    413 Request Entity Too Large
    415 Unsupported Media Type
    500 Internal Server Error
    501 Not Implemented
    503 Service Unavailable