• jetty关于http状态码处理的一个很有用的类


    public class HttpStatus
    {
        public final static int CONTINUE_100 = 100;
        public final static int SWITCHING_PROTOCOLS_101 = 101;
        public final static int PROCESSING_102 = 102;
    
        public final static int OK_200 = 200;
        public final static int CREATED_201 = 201;
        public final static int ACCEPTED_202 = 202;
        public final static int NON_AUTHORITATIVE_INFORMATION_203 = 203;
        public final static int NO_CONTENT_204 = 204;
        public final static int RESET_CONTENT_205 = 205;
        public final static int PARTIAL_CONTENT_206 = 206;
        public final static int MULTI_STATUS_207 = 207;
    
        public final static int MULTIPLE_CHOICES_300 = 300;
        public final static int MOVED_PERMANENTLY_301 = 301;
        public final static int MOVED_TEMPORARILY_302 = 302;
        public final static int FOUND_302 = 302;
        public final static int SEE_OTHER_303 = 303;
        public final static int NOT_MODIFIED_304 = 304;
        public final static int USE_PROXY_305 = 305;
        public final static int TEMPORARY_REDIRECT_307 = 307;
    
        public final static int BAD_REQUEST_400 = 400;
        public final static int UNAUTHORIZED_401 = 401;
        public final static int PAYMENT_REQUIRED_402 = 402;
        public final static int FORBIDDEN_403 = 403;
        public final static int NOT_FOUND_404 = 404;
        public final static int METHOD_NOT_ALLOWED_405 = 405;
        public final static int NOT_ACCEPTABLE_406 = 406;
        public final static int PROXY_AUTHENTICATION_REQUIRED_407 = 407;
        public final static int REQUEST_TIMEOUT_408 = 408;
        public final static int CONFLICT_409 = 409;
        public final static int GONE_410 = 410;
        public final static int LENGTH_REQUIRED_411 = 411;
        public final static int PRECONDITION_FAILED_412 = 412;
        public final static int REQUEST_ENTITY_TOO_LARGE_413 = 413;
        public final static int REQUEST_URI_TOO_LONG_414 = 414;
        public final static int UNSUPPORTED_MEDIA_TYPE_415 = 415;
        public final static int REQUESTED_RANGE_NOT_SATISFIABLE_416 = 416;
        public final static int EXPECTATION_FAILED_417 = 417;
        public final static int UNPROCESSABLE_ENTITY_422 = 422;
        public final static int LOCKED_423 = 423;
        public final static int FAILED_DEPENDENCY_424 = 424;
    
        public final static int INTERNAL_SERVER_ERROR_500 = 500;
        public final static int NOT_IMPLEMENTED_501 = 501;
        public final static int BAD_GATEWAY_502 = 502;
        public final static int SERVICE_UNAVAILABLE_503 = 503;
        public final static int GATEWAY_TIMEOUT_504 = 504;
        public final static int HTTP_VERSION_NOT_SUPPORTED_505 = 505;
        public final static int INSUFFICIENT_STORAGE_507 = 507;
    
        public static final int MAX_CODE = 507;
    
    
        private static final Code[] codeMap = new Code[MAX_CODE+1];
    
        static
        {
            for (Code code : Code.values())
            {
                codeMap[code._code] = code;
            }
        }
    
    
        public enum Code
        {
            /*
             * --------------------------------------------------------------------
             * Informational messages in 1xx series. As defined by ... RFC 1945 -
             * HTTP/1.0 RFC 2616 - HTTP/1.1 RFC 2518 - WebDAV
             */
    
            /** <code>100 Continue</code> */
            CONTINUE(CONTINUE_100, "Continue"),
            /** <code>101 Switching Protocols</code> */
            SWITCHING_PROTOCOLS(SWITCHING_PROTOCOLS_101, "Switching Protocols"),
            /** <code>102 Processing</code> */
            PROCESSING(PROCESSING_102, "Processing"),
    
            /*
             * --------------------------------------------------------------------
             * Success messages in 2xx series. As defined by ... RFC 1945 - HTTP/1.0
             * RFC 2616 - HTTP/1.1 RFC 2518 - WebDAV
             */
    
            /** <code>200 OK</code> */
            OK(OK_200, "OK"),
            /** <code>201 Created</code> */
            CREATED(CREATED_201, "Created"),
            /** <code>202 Accepted</code> */
            ACCEPTED(ACCEPTED_202, "Accepted"),
            /** <code>203 Non Authoritative Information</code> */
            NON_AUTHORITATIVE_INFORMATION(NON_AUTHORITATIVE_INFORMATION_203, "Non Authoritative Information"),
            /** <code>204 No Content</code> */
            NO_CONTENT(NO_CONTENT_204, "No Content"),
            /** <code>205 Reset Content</code> */
            RESET_CONTENT(RESET_CONTENT_205, "Reset Content"),
            /** <code>206 Partial Content</code> */
            PARTIAL_CONTENT(PARTIAL_CONTENT_206, "Partial Content"),
            /** <code>207 Multi-Status</code> */
            MULTI_STATUS(MULTI_STATUS_207, "Multi-Status"),
    
            /*
             * --------------------------------------------------------------------
             * Redirection messages in 3xx series. As defined by ... RFC 1945 -
             * HTTP/1.0 RFC 2616 - HTTP/1.1
             */
    
            /** <code>300 Mutliple Choices</code> */
            MULTIPLE_CHOICES(MULTIPLE_CHOICES_300, "Multiple Choices"),
            /** <code>301 Moved Permanently</code> */
            MOVED_PERMANENTLY(MOVED_PERMANENTLY_301, "Moved Permanently"),
            /** <code>302 Moved Temporarily</code> */
            MOVED_TEMPORARILY(MOVED_TEMPORARILY_302, "Moved Temporarily"),
            /** <code>302 Found</code> */
            FOUND(FOUND_302, "Found"),
            /** <code>303 See Other</code> */
            SEE_OTHER(SEE_OTHER_303, "See Other"),
            /** <code>304 Not Modified</code> */
            NOT_MODIFIED(NOT_MODIFIED_304, "Not Modified"),
            /** <code>305 Use Proxy</code> */
            USE_PROXY(USE_PROXY_305, "Use Proxy"),
            /** <code>307 Temporary Redirect</code> */
            TEMPORARY_REDIRECT(TEMPORARY_REDIRECT_307, "Temporary Redirect"),
    
            /*
             * --------------------------------------------------------------------
             * Client Error messages in 4xx series. As defined by ... RFC 1945 -
             * HTTP/1.0 RFC 2616 - HTTP/1.1 RFC 2518 - WebDAV
             */
    
            /** <code>400 Bad Request</code> */
            BAD_REQUEST(BAD_REQUEST_400, "Bad Request"),
            /** <code>401 Unauthorized</code> */
            UNAUTHORIZED(UNAUTHORIZED_401, "Unauthorized"),
            /** <code>402 Payment Required</code> */
            PAYMENT_REQUIRED(PAYMENT_REQUIRED_402, "Payment Required"),
            /** <code>403 Forbidden</code> */
            FORBIDDEN(FORBIDDEN_403, "Forbidden"),
            /** <code>404 Not Found</code> */
            NOT_FOUND(NOT_FOUND_404, "Not Found"),
            /** <code>405 Method Not Allowed</code> */
            METHOD_NOT_ALLOWED(METHOD_NOT_ALLOWED_405, "Method Not Allowed"),
            /** <code>406 Not Acceptable</code> */
            NOT_ACCEPTABLE(NOT_ACCEPTABLE_406, "Not Acceptable"),
            /** <code>407 Proxy Authentication Required</code> */
            PROXY_AUTHENTICATION_REQUIRED(PROXY_AUTHENTICATION_REQUIRED_407, "Proxy Authentication Required"),
            /** <code>408 Request Timeout</code> */
            REQUEST_TIMEOUT(REQUEST_TIMEOUT_408, "Request Timeout"),
            /** <code>409 Conflict</code> */
            CONFLICT(CONFLICT_409, "Conflict"),
            /** <code>410 Gone</code> */
            GONE(GONE_410, "Gone"),
            /** <code>411 Length Required</code> */
            LENGTH_REQUIRED(LENGTH_REQUIRED_411, "Length Required"),
            /** <code>412 Precondition Failed</code> */
            PRECONDITION_FAILED(PRECONDITION_FAILED_412, "Precondition Failed"),
            /** <code>413 Request Entity Too Large</code> */
            REQUEST_ENTITY_TOO_LARGE(REQUEST_ENTITY_TOO_LARGE_413, "Request Entity Too Large"),
            /** <code>414 Request-URI Too Long</code> */
            REQUEST_URI_TOO_LONG(REQUEST_URI_TOO_LONG_414, "Request-URI Too Long"),
            /** <code>415 Unsupported Media Type</code> */
            UNSUPPORTED_MEDIA_TYPE(UNSUPPORTED_MEDIA_TYPE_415, "Unsupported Media Type"),
            /** <code>416 Requested Range Not Satisfiable</code> */
            REQUESTED_RANGE_NOT_SATISFIABLE(REQUESTED_RANGE_NOT_SATISFIABLE_416, "Requested Range Not Satisfiable"),
            /** <code>417 Expectation Failed</code> */
            EXPECTATION_FAILED(EXPECTATION_FAILED_417, "Expectation Failed"),
            /** <code>422 Unprocessable Entity</code> */
            UNPROCESSABLE_ENTITY(UNPROCESSABLE_ENTITY_422, "Unprocessable Entity"),
            /** <code>423 Locked</code> */
            LOCKED(LOCKED_423, "Locked"),
            /** <code>424 Failed Dependency</code> */
            FAILED_DEPENDENCY(FAILED_DEPENDENCY_424, "Failed Dependency"),
    
            /*
             * --------------------------------------------------------------------
             * Server Error messages in 5xx series. As defined by ... RFC 1945 -
             * HTTP/1.0 RFC 2616 - HTTP/1.1 RFC 2518 - WebDAV
             */
    
            /** <code>500 Server Error</code> */
            INTERNAL_SERVER_ERROR(INTERNAL_SERVER_ERROR_500, "Server Error"),
            /** <code>501 Not Implemented</code> */
            NOT_IMPLEMENTED(NOT_IMPLEMENTED_501, "Not Implemented"),
            /** <code>502 Bad Gateway</code> */
            BAD_GATEWAY(BAD_GATEWAY_502, "Bad Gateway"),
            /** <code>503 Service Unavailable</code> */
            SERVICE_UNAVAILABLE(SERVICE_UNAVAILABLE_503, "Service Unavailable"),
            /** <code>504 Gateway Timeout</code> */
            GATEWAY_TIMEOUT(GATEWAY_TIMEOUT_504, "Gateway Timeout"),
            /** <code>505 HTTP Version Not Supported</code> */
            HTTP_VERSION_NOT_SUPPORTED(HTTP_VERSION_NOT_SUPPORTED_505, "HTTP Version Not Supported"),
            /** <code>507 Insufficient Storage</code> */
            INSUFFICIENT_STORAGE(INSUFFICIENT_STORAGE_507, "Insufficient Storage");
    
            private final int _code;
            private final String _message;
    
            private Code(int code, String message)
            {
                this._code = code;
                _message=message;
            }
    
            public int getCode()
            {
                return _code;
            }
    
            public String getMessage()
            {
                return _message;
            }
    
    
            public boolean equals(int code)
            {
                return (this._code == code);
            }
    
            @Override
            public String toString()
            {
                return String.format("[%03d %s]",this._code,this.getMessage());
            }
    
            /**
             * Simple test against an code to determine if it falls into the
             * <code>Informational</code> message category as defined in the <a
             * href="http://tools.ietf.org/html/rfc1945">RFC 1945 - HTTP/1.0</a>,
             * and <a href="http://tools.ietf.org/html/rfc2616">RFC 2616 -
             * HTTP/1.1</a>.
             *
             * @return true if within range of codes that belongs to
             *         <code>Informational</code> messages.
             */
            public boolean isInformational()
            {
                return HttpStatus.isInformational(this._code);
            }
    
            /**
             * Simple test against an code to determine if it falls into the
             * <code>Success</code> message category as defined in the <a
             * href="http://tools.ietf.org/html/rfc1945">RFC 1945 - HTTP/1.0</a>,
             * and <a href="http://tools.ietf.org/html/rfc2616">RFC 2616 -
             * HTTP/1.1</a>.
             *
             * @return true if within range of codes that belongs to
             *         <code>Success</code> messages.
             */
            public boolean isSuccess()
            {
                return HttpStatus.isSuccess(this._code);
            }
    
            /**
             * Simple test against an code to determine if it falls into the
             * <code>Redirection</code> message category as defined in the <a
             * href="http://tools.ietf.org/html/rfc1945">RFC 1945 - HTTP/1.0</a>,
             * and <a href="http://tools.ietf.org/html/rfc2616">RFC 2616 -
             * HTTP/1.1</a>.
             *
             * @return true if within range of codes that belongs to
             *         <code>Redirection</code> messages.
             */
            public boolean isRedirection()
            {
                return HttpStatus.isRedirection(this._code);
            }
    
            /**
             * Simple test against an code to determine if it falls into the
             * <code>Client Error</code> message category as defined in the <a
             * href="http://tools.ietf.org/html/rfc1945">RFC 1945 - HTTP/1.0</a>,
             * and <a href="http://tools.ietf.org/html/rfc2616">RFC 2616 -
             * HTTP/1.1</a>.
             *
             * @return true if within range of codes that belongs to
             *         <code>Client Error</code> messages.
             */
            public boolean isClientError()
            {
                return HttpStatus.isClientError(this._code);
            }
    
            /**
             * Simple test against an code to determine if it falls into the
             * <code>Server Error</code> message category as defined in the <a
             * href="http://tools.ietf.org/html/rfc1945">RFC 1945 - HTTP/1.0</a>,
             * and <a href="http://tools.ietf.org/html/rfc2616">RFC 2616 -
             * HTTP/1.1</a>.
             *
             * @return true if within range of codes that belongs to
             *         <code>Server Error</code> messages.
             */
            public boolean isServerError()
            {
                return HttpStatus.isServerError(this._code);
            }
        }
    
    
        /**
         * Get the HttpStatusCode for a specific code
         *
         * @param code
         *            the code to lookup.
         * @return the {@link HttpStatus} if found, or null if not found.
         */
        public static Code getCode(int code)
        {
            if (code <= MAX_CODE)
            {
                return codeMap[code];
            }
            return null;
        }
    
        /**
         * Get the status message for a specific code.
         *
         * @param code
         *            the code to look up
         * @return the specific message, or the code number itself if code
         *         does not match known list.
         */
        public static String getMessage(int code)
        {
            Code codeEnum = getCode(code);
            if (codeEnum != null)
            {
                return codeEnum.getMessage();
            }
            else
            {
                return Integer.toString(code);
            }
        }
    
        /**
         * Simple test against an code to determine if it falls into the
         * <code>Informational</code> message category as defined in the <a
         * href="http://tools.ietf.org/html/rfc1945">RFC 1945 - HTTP/1.0</a>, and <a
         * href="http://tools.ietf.org/html/rfc2616">RFC 2616 - HTTP/1.1</a>.
         *
         * @param code
         *            the code to test.
         * @return true if within range of codes that belongs to
         *         <code>Informational</code> messages.
         */
        public static boolean isInformational(int code)
        {
            return ((100 <= code) && (code <= 199));
        }
    
        /**
         * Simple test against an code to determine if it falls into the
         * <code>Success</code> message category as defined in the <a
         * href="http://tools.ietf.org/html/rfc1945">RFC 1945 - HTTP/1.0</a>, and <a
         * href="http://tools.ietf.org/html/rfc2616">RFC 2616 - HTTP/1.1</a>.
         *
         * @param code
         *            the code to test.
         * @return true if within range of codes that belongs to
         *         <code>Success</code> messages.
         */
        public static boolean isSuccess(int code)
        {
            return ((200 <= code) && (code <= 299));
        }
    
        /**
         * Simple test against an code to determine if it falls into the
         * <code>Redirection</code> message category as defined in the <a
         * href="http://tools.ietf.org/html/rfc1945">RFC 1945 - HTTP/1.0</a>, and <a
         * href="http://tools.ietf.org/html/rfc2616">RFC 2616 - HTTP/1.1</a>.
         *
         * @param code
         *            the code to test.
         * @return true if within range of codes that belongs to
         *         <code>Redirection</code> messages.
         */
        public static boolean isRedirection(int code)
        {
            return ((300 <= code) && (code <= 399));
        }
    
        /**
         * Simple test against an code to determine if it falls into the
         * <code>Client Error</code> message category as defined in the <a
         * href="http://tools.ietf.org/html/rfc1945">RFC 1945 - HTTP/1.0</a>, and <a
         * href="http://tools.ietf.org/html/rfc2616">RFC 2616 - HTTP/1.1</a>.
         *
         * @param code
         *            the code to test.
         * @return true if within range of codes that belongs to
         *         <code>Client Error</code> messages.
         */
        public static boolean isClientError(int code)
        {
            return ((400 <= code) && (code <= 499));
        }
    
        /**
         * Simple test against an code to determine if it falls into the
         * <code>Server Error</code> message category as defined in the <a
         * href="http://tools.ietf.org/html/rfc1945">RFC 1945 - HTTP/1.0</a>, and <a
         * href="http://tools.ietf.org/html/rfc2616">RFC 2616 - HTTP/1.1</a>.
         *
         * @param code
         *            the code to test.
         * @return true if within range of codes that belongs to
         *         <code>Server Error</code> messages.
         */
        public static boolean isServerError(int code)
        {
            return ((500 <= code) && (code <= 599));
        }
    }
    

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  • 原文地址:https://www.cnblogs.com/secbook/p/2655179.html
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