常用
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200
-
302
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400
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401
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404
-
500
100 => 'Continue', //继续
101 => 'Switching Protocols', //分组交换协议
102 => 'Processing', // RFC2518
200 => 'OK',
201 => 'Created', //被创建
202 => 'Accepted', //被采纳
203 => 'Non-Authoritative Information', //非授权信息
204 => 'No Content', //无内容
205 => 'Reset Content', //重置内容
206 => 'Partial Content', //部分内容
207 => 'Multi-Status', // RFC4918
208 => 'Already Reported', // RFC5842
226 => 'IM Used', // RFC3229
300 => 'Multiple Choices', //多选项
301 => 'Moved Permanently', //永久地传送
302 => 'Found', //找到
303 => 'See Other', //参见其他
304 => 'Not Modified', //未改动
305 => 'Use Proxy', //使用代理
307 => 'Temporary Redirect', //暂时重定向
308 => 'Permanent Redirect', // RFC7238
400 => 'Bad Request', //错误请求
401 => 'Unauthorized', //未授权
402 => 'Payment Required', //要求付费
403 => 'Forbidden', //禁止
404 => 'Not Found', //未找到
405 => 'Method Not Allowed', //不允许的方法
406 => 'Not Acceptable', //不被采纳
407 => 'Proxy Authentication Required', //要求代理授权
408 => 'Request Timeout', //请求超时
409 => 'Conflict', //冲突
410 => 'Gone', //过期的
411 => 'Length Required', //要求的长度
412 => 'Precondition Failed', //前提不成立
413 => 'Payload Too Large', //请求实例太大
414 => 'URI Too Long', //请求URI太大
415 => 'Unsupported Media Type', //不支持的媒体类型
416 => 'Range Not Satisfiable', //无法满足的请求范围
417 => 'Expectation Failed', //失败的预期
418 => 'I'm a teapot', // RFC2324
421 => 'Misdirected Request', // RFC7540
422 => 'Unprocessable Entity', // RFC4918,资源错误
423 => 'Locked', // RFC4918
424 => 'Failed Dependency', // RFC4918
425 => 'Reserved for WebDAV advanced collections expired proposal', // RFC2817
426 => 'Upgrade Required', // RFC2817
428 => 'Precondition Required', // RFC6585
429 => 'Too Many Requests', // RFC6585
431 => 'Request Header Fields Too Large', // RFC6585
451 => 'Unavailable For Legal Reasons', // RFC7725
500 => 'Internal Server Error', //内部服务器错误
501 => 'Not Implemented', //未被使用
502 => 'Bad Gateway', //网关错误
503 => 'Service Unavailable', //不可用的服务/维护
504 => 'Gateway Timeout', //网关超时
505 => 'HTTP Version Not Supported', //HTTP版本未被支持
506 => 'Variant Also Negotiates (Experimental)', // RFC2295
507 => 'Insufficient Storage', // RFC4918
508 => 'Loop Detected', // RFC5842
510 => 'Not Extended', // RFC2774
511 => 'Network Authentication Required',
参考： https://blog.csdn.net/weixin_34309543/article/details/87256910