HTTP状态码分类 具体意义 及Spring对应工具类 HttpStatus

HTTP状态码五大类

可知：

1xx 信息(informational)
2xx 成功(successful)
3xx 重定向(redirection)
4xx 客户端错误(client_error)
5xx 服务端错误(server_error)

HTTP状态码及对应的意义

100 "continue"
101 "switching protocols"
102 "processing"
103 "checkpoint"200 "ok"
201 "created"
202 "accepted"
203 "non-authoritative information"
204 "no content"
205 "reset content"
206 "partial content"
207 "multi-status"
208 "already reported"
226 "im used"300 "multiple choices"
301 "moved permanently"
302 "found"
302 "moved temporarily"
303 "see other"
304 "not modified"
305 "use proxy"
307 "temporary redirect"
308 "permanent redirect"400 "bad request"
401 "unauthorized"
402 "payment required"
403 "forbidden"
404 "not found"
405 "method not allowed"
406 "not acceptable"
407 "proxy authentication required"
408 "request timeout"
409 "conflict"
410 "gone"
411 "length required"
412 "precondition failed"
413 "payload too large"
413 "request entity too large"
414 "uri too long"
414 "request-uri too long"
415 "unsupported media type"
416 "requested range not satisfiable"
417 "expectation failed"
418 "i'm a teapot"
419 "insufficient space on resource"
420 "method failure"
421 "destination locked"
422 "unprocessable entity"
423 "locked"
424 "failed dependency"
425 "too early"
426 "upgrade required"
428 "precondition required"
429 "too many requests"
431 "request header fields too large"
451 "unavailable for legal reasons"500 "internal server error"
501 "not implemented"
502 "bad gateway"
503 "service unavailable"
504 "gateway timeout"
505 "http version not supported"
506 "variant also negotiates"
507 "insufficient storage"
508 "loop detected"
509 "bandwidth limit exceeded"
510 "not extended"
511 "network authentication required"

org.springframework.http.HttpStatus 源码

//
// Source code recreated from a .class file by IntelliJ IDEA
// (powered by FernFlower decompiler)
//package org.springframework.http;import org.springframework.lang.Nullable;public enum HttpStatus {CONTINUE(100, HttpStatus.Series.INFORMATIONAL, "Continue"),SWITCHING_PROTOCOLS(101, HttpStatus.Series.INFORMATIONAL, "Switching Protocols"),PROCESSING(102, HttpStatus.Series.INFORMATIONAL, "Processing"),CHECKPOINT(103, HttpStatus.Series.INFORMATIONAL, "Checkpoint"),OK(200, HttpStatus.Series.SUCCESSFUL, "OK"),CREATED(201, HttpStatus.Series.SUCCESSFUL, "Created"),ACCEPTED(202, HttpStatus.Series.SUCCESSFUL, "Accepted"),NON_AUTHORITATIVE_INFORMATION(203, HttpStatus.Series.SUCCESSFUL, "Non-Authoritative Information"),NO_CONTENT(204, HttpStatus.Series.SUCCESSFUL, "No Content"),RESET_CONTENT(205, HttpStatus.Series.SUCCESSFUL, "Reset Content"),PARTIAL_CONTENT(206, HttpStatus.Series.SUCCESSFUL, "Partial Content"),MULTI_STATUS(207, HttpStatus.Series.SUCCESSFUL, "Multi-Status"),ALREADY_REPORTED(208, HttpStatus.Series.SUCCESSFUL, "Already Reported"),IM_USED(226, HttpStatus.Series.SUCCESSFUL, "IM Used"),MULTIPLE_CHOICES(300, HttpStatus.Series.REDIRECTION, "Multiple Choices"),MOVED_PERMANENTLY(301, HttpStatus.Series.REDIRECTION, "Moved Permanently"),FOUND(302, HttpStatus.Series.REDIRECTION, "Found"),/** @deprecated */@DeprecatedMOVED_TEMPORARILY(302, HttpStatus.Series.REDIRECTION, "Moved Temporarily"),SEE_OTHER(303, HttpStatus.Series.REDIRECTION, "See Other"),NOT_MODIFIED(304, HttpStatus.Series.REDIRECTION, "Not Modified"),/** @deprecated */@DeprecatedUSE_PROXY(305, HttpStatus.Series.REDIRECTION, "Use Proxy"),TEMPORARY_REDIRECT(307, HttpStatus.Series.REDIRECTION, "Temporary Redirect"),PERMANENT_REDIRECT(308, HttpStatus.Series.REDIRECTION, "Permanent Redirect"),BAD_REQUEST(400, HttpStatus.Series.CLIENT_ERROR, "Bad Request"),UNAUTHORIZED(401, HttpStatus.Series.CLIENT_ERROR, "Unauthorized"),PAYMENT_REQUIRED(402, HttpStatus.Series.CLIENT_ERROR, "Payment Required"),FORBIDDEN(403, HttpStatus.Series.CLIENT_ERROR, "Forbidden"),NOT_FOUND(404, HttpStatus.Series.CLIENT_ERROR, "Not Found"),METHOD_NOT_ALLOWED(405, HttpStatus.Series.CLIENT_ERROR, "Method Not Allowed"),NOT_ACCEPTABLE(406, HttpStatus.Series.CLIENT_ERROR, "Not Acceptable"),PROXY_AUTHENTICATION_REQUIRED(407, HttpStatus.Series.CLIENT_ERROR, "Proxy Authentication Required"),REQUEST_TIMEOUT(408, HttpStatus.Series.CLIENT_ERROR, "Request Timeout"),CONFLICT(409, HttpStatus.Series.CLIENT_ERROR, "Conflict"),GONE(410, HttpStatus.Series.CLIENT_ERROR, "Gone"),LENGTH_REQUIRED(411, HttpStatus.Series.CLIENT_ERROR, "Length Required"),PRECONDITION_FAILED(412, HttpStatus.Series.CLIENT_ERROR, "Precondition Failed"),PAYLOAD_TOO_LARGE(413, HttpStatus.Series.CLIENT_ERROR, "Payload Too Large"),/** @deprecated */@DeprecatedREQUEST_ENTITY_TOO_LARGE(413, HttpStatus.Series.CLIENT_ERROR, "Request Entity Too Large"),URI_TOO_LONG(414, HttpStatus.Series.CLIENT_ERROR, "URI Too Long"),/** @deprecated */@DeprecatedREQUEST_URI_TOO_LONG(414, HttpStatus.Series.CLIENT_ERROR, "Request-URI Too Long"),UNSUPPORTED_MEDIA_TYPE(415, HttpStatus.Series.CLIENT_ERROR, "Unsupported Media Type"),REQUESTED_RANGE_NOT_SATISFIABLE(416, HttpStatus.Series.CLIENT_ERROR, "Requested range not satisfiable"),EXPECTATION_FAILED(417, HttpStatus.Series.CLIENT_ERROR, "Expectation Failed"),I_AM_A_TEAPOT(418, HttpStatus.Series.CLIENT_ERROR, "I'm a teapot"),/** @deprecated */@DeprecatedINSUFFICIENT_SPACE_ON_RESOURCE(419, HttpStatus.Series.CLIENT_ERROR, "Insufficient Space On Resource"),/** @deprecated */@DeprecatedMETHOD_FAILURE(420, HttpStatus.Series.CLIENT_ERROR, "Method Failure"),/** @deprecated */@DeprecatedDESTINATION_LOCKED(421, HttpStatus.Series.CLIENT_ERROR, "Destination Locked"),UNPROCESSABLE_ENTITY(422, HttpStatus.Series.CLIENT_ERROR, "Unprocessable Entity"),LOCKED(423, HttpStatus.Series.CLIENT_ERROR, "Locked"),FAILED_DEPENDENCY(424, HttpStatus.Series.CLIENT_ERROR, "Failed Dependency"),TOO_EARLY(425, HttpStatus.Series.CLIENT_ERROR, "Too Early"),UPGRADE_REQUIRED(426, HttpStatus.Series.CLIENT_ERROR, "Upgrade Required"),PRECONDITION_REQUIRED(428, HttpStatus.Series.CLIENT_ERROR, "Precondition Required"),TOO_MANY_REQUESTS(429, HttpStatus.Series.CLIENT_ERROR, "Too Many Requests"),REQUEST_HEADER_FIELDS_TOO_LARGE(431, HttpStatus.Series.CLIENT_ERROR, "Request Header Fields Too Large"),UNAVAILABLE_FOR_LEGAL_REASONS(451, HttpStatus.Series.CLIENT_ERROR, "Unavailable For Legal Reasons"),INTERNAL_SERVER_ERROR(500, HttpStatus.Series.SERVER_ERROR, "Internal Server Error"),NOT_IMPLEMENTED(501, HttpStatus.Series.SERVER_ERROR, "Not Implemented"),BAD_GATEWAY(502, HttpStatus.Series.SERVER_ERROR, "Bad Gateway"),SERVICE_UNAVAILABLE(503, HttpStatus.Series.SERVER_ERROR, "Service Unavailable"),GATEWAY_TIMEOUT(504, HttpStatus.Series.SERVER_ERROR, "Gateway Timeout"),HTTP_VERSION_NOT_SUPPORTED(505, HttpStatus.Series.SERVER_ERROR, "HTTP Version not supported"),VARIANT_ALSO_NEGOTIATES(506, HttpStatus.Series.SERVER_ERROR, "Variant Also Negotiates"),INSUFFICIENT_STORAGE(507, HttpStatus.Series.SERVER_ERROR, "Insufficient Storage"),LOOP_DETECTED(508, HttpStatus.Series.SERVER_ERROR, "Loop Detected"),BANDWIDTH_LIMIT_EXCEEDED(509, HttpStatus.Series.SERVER_ERROR, "Bandwidth Limit Exceeded"),NOT_EXTENDED(510, HttpStatus.Series.SERVER_ERROR, "Not Extended"),NETWORK_AUTHENTICATION_REQUIRED(511, HttpStatus.Series.SERVER_ERROR, "Network Authentication Required");private final int value;private final HttpStatus.Series series;private final String reasonPhrase;private HttpStatus(int value, HttpStatus.Series series, String reasonPhrase) {this.value = value;this.series = series;this.reasonPhrase = reasonPhrase;}public int value() {return this.value;}public HttpStatus.Series series() {return this.series;}public String getReasonPhrase() {return this.reasonPhrase;}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 boolean isError() {return this.is4xxClientError() || this.is5xxServerError();}public String toString() {return this.value + " " + this.name();}public static HttpStatus valueOf(int statusCode) {HttpStatus status = resolve(statusCode);if (status == null) {throw new IllegalArgumentException("No matching constant for [" + statusCode + "]");} else {return status;}}@Nullablepublic static HttpStatus resolve(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;}}return null;}public static enum Series {INFORMATIONAL(1),SUCCESSFUL(2),REDIRECTION(3),CLIENT_ERROR(4),SERVER_ERROR(5);private final int value;private Series(int value) {this.value = value;}public int value() {return this.value;}/** @deprecated */@Deprecatedpublic static HttpStatus.Series valueOf(HttpStatus status) {return status.series;}public static HttpStatus.Series valueOf(int statusCode) {HttpStatus.Series series = resolve(statusCode);if (series == null) {throw new IllegalArgumentException("No matching constant for [" + statusCode + "]");} else {return series;}}@Nullablepublic static HttpStatus.Series resolve(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;}}return null;}}
}

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