spring-web之HttpStatus

末蓝、 2022-01-26 15:41 166阅读 0赞

## 介绍 ##

> spring-web定义的Http请求状态码

## 源码 ##

package org.springframework.http;
    
    public enum HttpStatus { 
        CONTINUE(100, "Continue"),
        SWITCHING_PROTOCOLS(101, "Switching Protocols"),
        PROCESSING(102, "Processing"),
        CHECKPOINT(103, "Checkpoint"),
        OK(200, "OK"),
        CREATED(201, "Created"),
        ACCEPTED(202, "Accepted"),
        NON_AUTHORITATIVE_INFORMATION(203, "Non-Authoritative Information"),
        NO_CONTENT(204, "No Content"),
        RESET_CONTENT(205, "Reset Content"),
        PARTIAL_CONTENT(206, "Partial Content"),
        MULTI_STATUS(207, "Multi-Status"),
        ALREADY_REPORTED(208, "Already Reported"),
        IM_USED(226, "IM Used"),
        MULTIPLE_CHOICES(300, "Multiple Choices"),
        MOVED_PERMANENTLY(301, "Moved Permanently"),
        FOUND(302, "Found"),
        /** @deprecated */
        @Deprecated
        MOVED_TEMPORARILY(302, "Moved Temporarily"),
        SEE_OTHER(303, "See Other"),
        NOT_MODIFIED(304, "Not Modified"),
        /** @deprecated */
        @Deprecated
        USE_PROXY(305, "Use Proxy"),
        TEMPORARY_REDIRECT(307, "Temporary Redirect"),
        PERMANENT_REDIRECT(308, "Permanent Redirect"),
        BAD_REQUEST(400, "Bad Request"),
        UNAUTHORIZED(401, "Unauthorized"),
        PAYMENT_REQUIRED(402, "Payment Required"),
        FORBIDDEN(403, "Forbidden"),
        NOT_FOUND(404, "Not Found"),
        METHOD_NOT_ALLOWED(405, "Method Not Allowed"),
        NOT_ACCEPTABLE(406, "Not Acceptable"),
        PROXY_AUTHENTICATION_REQUIRED(407, "Proxy Authentication Required"),
        REQUEST_TIMEOUT(408, "Request Timeout"),
        CONFLICT(409, "Conflict"),
        GONE(410, "Gone"),
        LENGTH_REQUIRED(411, "Length Required"),
        PRECONDITION_FAILED(412, "Precondition Failed"),
        PAYLOAD_TOO_LARGE(413, "Payload Too Large"),
        /** @deprecated */
        @Deprecated
        REQUEST_ENTITY_TOO_LARGE(413, "Request Entity Too Large"),
        URI_TOO_LONG(414, "URI Too Long"),
        /** @deprecated */
        @Deprecated
        REQUEST_URI_TOO_LONG(414, "Request-URI Too Long"),
        UNSUPPORTED_MEDIA_TYPE(415, "Unsupported Media Type"),
        REQUESTED_RANGE_NOT_SATISFIABLE(416, "Requested range not satisfiable"),
        EXPECTATION_FAILED(417, "Expectation Failed"),
        I_AM_A_TEAPOT(418, "I'm a teapot"),
        /** @deprecated */
        @Deprecated
        INSUFFICIENT_SPACE_ON_RESOURCE(419, "Insufficient Space On Resource"),
        /** @deprecated */
        @Deprecated
        METHOD_FAILURE(420, "Method Failure"),
        /** @deprecated */
        @Deprecated
        DESTINATION_LOCKED(421, "Destination Locked"),
        UNPROCESSABLE_ENTITY(422, "Unprocessable Entity"),
        LOCKED(423, "Locked"),
        FAILED_DEPENDENCY(424, "Failed Dependency"),
        UPGRADE_REQUIRED(426, "Upgrade Required"),
        PRECONDITION_REQUIRED(428, "Precondition Required"),
        TOO_MANY_REQUESTS(429, "Too Many Requests"),
        REQUEST_HEADER_FIELDS_TOO_LARGE(431, "Request Header Fields Too Large"),
        UNAVAILABLE_FOR_LEGAL_REASONS(451, "Unavailable For Legal Reasons"),
        INTERNAL_SERVER_ERROR(500, "Internal Server Error"),
        NOT_IMPLEMENTED(501, "Not Implemented"),
        BAD_GATEWAY(502, "Bad Gateway"),
        SERVICE_UNAVAILABLE(503, "Service Unavailable"),
        GATEWAY_TIMEOUT(504, "Gateway Timeout"),
        HTTP_VERSION_NOT_SUPPORTED(505, "HTTP Version not supported"),
        VARIANT_ALSO_NEGOTIATES(506, "Variant Also Negotiates"),
        INSUFFICIENT_STORAGE(507, "Insufficient Storage"),
        LOOP_DETECTED(508, "Loop Detected"),
        BANDWIDTH_LIMIT_EXCEEDED(509, "Bandwidth Limit Exceeded"),
        NOT_EXTENDED(510, "Not Extended"),
        NETWORK_AUTHENTICATION_REQUIRED(511, "Network Authentication Required");
    
        // 定义的是final变量，只能赋值一次
        private final int value;
        private final String reasonPhrase;
    
        private HttpStatus(int value, String reasonPhrase) { 
            this.value = value;
            this.reasonPhrase = reasonPhrase;
        }
    
        public int value() { 
            return this.value;
        }
    
        public String getReasonPhrase() { 
            return this.reasonPhrase;
        }
    
        public HttpStatus.Series series() { 
            return HttpStatus.Series.valueOf(this);
        }
    
        public boolean is1xxInformational() { 
            return this.series() == HttpStatus.Series.INFORMATIONAL;
        }
    
        public boolean is2xxSuccessful() { 
            return this.series() == HttpStatus.Series.SUCCESSFUL;
        }
    
        public boolean is3xxRedirection() { 
            return this.series() == HttpStatus.Series.REDIRECTION;
        }
    
        public boolean is4xxClientError() { 
            return this.series() == HttpStatus.Series.CLIENT_ERROR;
        }
    
        public boolean is5xxServerError() { 
            return this.series() == HttpStatus.Series.SERVER_ERROR;
        }
    
        public String toString() { 
            return Integer.toString(this.value);
        }
    
        public static HttpStatus valueOf(int statusCode) { 
            HttpStatus[] var1 = values();
            int var2 = var1.length;
    
            for(int var3 = 0; var3 < var2; ++var3) { 
                HttpStatus status = var1[var3];
                if (status.value == statusCode) { 
                    return status;
                }
            }
    
            throw new IllegalArgumentException("No matching constant for [" + statusCode + "]");
        }
    
        public static enum Series { 
            INFORMATIONAL(1),
            SUCCESSFUL(2),
            REDIRECTION(3),
            CLIENT_ERROR(4),
            SERVER_ERROR(5);
            
            // 定义的是final变量，只能赋值一次
            private final int value;
    
            private Series(int value) { 
                this.value = value;
            }
    
            public int value() { 
                return this.value;
            }
    
            public static HttpStatus.Series valueOf(HttpStatus status) { 
                return valueOf(status.value);
            }
    
            public static HttpStatus.Series valueOf(int statusCode) { 
                int seriesCode = statusCode / 100;
                HttpStatus.Series[] var2 = values();
                int var3 = var2.length;
    
                for(int var4 = 0; var4 < var3; ++var4) { 
                    HttpStatus.Series series = var2[var4];
                    if (series.value == seriesCode) { 
                        return series;
                    }
                }
    
                throw new IllegalArgumentException("No matching constant for [" + statusCode + "]");
            }
        }
    }