golang 设置web请求状态码操作

我就废话不多说了，大家还是直接看代码吧~

package main
import (
"net/http"
)
func main() {
//路由处理绑定
http.HandleFunc("/", Hander)
//监听8080端口
http.ListenAndServe(":8080", nil)
}
func Hander(w http.ResponseWriter, req *http.Request) {
//设置 http请求状态
w.WriteHeader(500)
//写入页面数据
w.Write([]byte("xiaochuan"))
}

你也可以用http 包里面的常量 我这边直接写数字方便理解而已

const (
StatusContinue   = 100
StatusSwitchingProtocols = 101
StatusOK     = 200
StatusCreated    = 201
StatusAccepted    = 202
StatusNonAuthoritativeInfo = 203
StatusNoContent   = 204
StatusResetContent   = 205
StatusPartialContent  = 206
StatusMultipleChoices = 300
StatusMovedPermanently = 301
StatusFound    = 302
StatusSeeOther   = 303
StatusNotModified  = 304
StatusUseProxy   = 305
StatusTemporaryRedirect = 307
StatusBadRequest     = 400
StatusUnauthorized     = 401
StatusPaymentRequired    = 402
StatusForbidden     = 403
StatusNotFound      = 404
StatusMethodNotAllowed    = 405
StatusNotAcceptable    = 406
StatusProxyAuthRequired   = 407
StatusRequestTimeout    = 408
StatusConflict      = 409
StatusGone       = 410
StatusLengthRequired    = 411
StatusPreconditionFailed   = 412
StatusRequestEntityTooLarge  = 413
StatusRequestURITooLong   = 414
StatusUnsupportedMediaType   = 415
StatusRequestedRangeNotSatisfiable = 416
StatusExpectationFailed   = 417
StatusTeapot      = 418
StatusInternalServerError  = 500
StatusNotImplemented   = 501
StatusBadGateway    = 502
StatusServiceUnavailable  = 503
StatusGatewayTimeout   = 504
StatusHTTPVersionNotSupported = 505
// New HTTP status codes from RFC 6585. Not exported yet in Go 1.1.
// See discussion at https://codereview.appspot.com/7678043/
statusPreconditionRequired   = 428
statusTooManyRequests    = 429
statusRequestHeaderFieldsTooLarge = 431
statusNetworkAuthenticationRequired = 511
)

下面修改一下就是这个样子

package main
import (
"net/http"
)
func main() {
//路由处理绑定
http.HandleFunc("/", Hander)
//监听8080端口
http.ListenAndServe(":8080", nil)
}
func Hander(w http.ResponseWriter, req *http.Request) {
//设置 http请求状态 为500
w.WriteHeader(http.StatusInternalServerError)
//写入页面数据
w.Write([]byte("xiaochuan"))
}

补充：go status.go 状态码定义

status.go使用了一个map集合定义了http的响应状态码

具体的参考如下

// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package http
// HTTP status codes, defined in RFC 2616.
const (
StatusContinue   = 100
StatusSwitchingProtocols = 101
StatusOK     = 200
StatusCreated    = 201
StatusAccepted    = 202
StatusNonAuthoritativeInfo = 203
StatusNoContent   = 204
StatusResetContent   = 205
StatusPartialContent  = 206
StatusMultipleChoices = 300
StatusMovedPermanently = 301
StatusFound    = 302
StatusSeeOther   = 303
StatusNotModified  = 304
StatusUseProxy   = 305
StatusTemporaryRedirect = 307
StatusBadRequest     = 400
StatusUnauthorized     = 401
StatusPaymentRequired    = 402
StatusForbidden     = 403
StatusNotFound      = 404
StatusMethodNotAllowed    = 405
StatusNotAcceptable    = 406
StatusProxyAuthRequired   = 407
StatusRequestTimeout    = 408
StatusConflict      = 409
StatusGone       = 410
StatusLengthRequired    = 411
StatusPreconditionFailed   = 412
StatusRequestEntityTooLarge  = 413
StatusRequestURITooLong   = 414
StatusUnsupportedMediaType   = 415
StatusRequestedRangeNotSatisfiable = 416
StatusExpectationFailed   = 417
StatusTeapot      = 418
StatusPreconditionRequired   = 428
StatusTooManyRequests    = 429
StatusRequestHeaderFieldsTooLarge = 431
StatusUnavailableForLegalReasons = 451
StatusInternalServerError   = 500
StatusNotImplemented    = 501
StatusBadGateway     = 502
StatusServiceUnavailable   = 503
StatusGatewayTimeout    = 504
StatusHTTPVersionNotSupported  = 505
StatusNetworkAuthenticationRequired = 511
)
var statusText = map[int]string{
StatusContinue:   "Continue",
StatusSwitchingProtocols: "Switching Protocols",
StatusOK:     "OK",
StatusCreated:    "Created",
StatusAccepted:    "Accepted",
StatusNonAuthoritativeInfo: "Non-Authoritative Information",
StatusNoContent:   "No Content",
StatusResetContent:   "Reset Content",
StatusPartialContent:  "Partial Content",
StatusMultipleChoices: "Multiple Choices",
StatusMovedPermanently: "Moved Permanently",
StatusFound:    "Found",
StatusSeeOther:   "See Other",
StatusNotModified:  "Not Modified",
StatusUseProxy:   "Use Proxy",
StatusTemporaryRedirect: "Temporary Redirect",
StatusBadRequest:     "Bad Request",
StatusUnauthorized:     "Unauthorized",
StatusPaymentRequired:    "Payment Required",
StatusForbidden:     "Forbidden",
StatusNotFound:      "Not Found",
StatusMethodNotAllowed:    "Method Not Allowed",
StatusNotAcceptable:    "Not Acceptable",
StatusProxyAuthRequired:   "Proxy Authentication Required",
StatusRequestTimeout:    "Request Timeout",
StatusConflict:      "Conflict",
StatusGone:       "Gone",
StatusLengthRequired:    "Length Required",
StatusPreconditionFailed:   "Precondition Failed",
StatusRequestEntityTooLarge:  "Request Entity Too Large",
StatusRequestURITooLong:   "Request URI Too Long",
StatusUnsupportedMediaType:   "Unsupported Media Type",
StatusRequestedRangeNotSatisfiable: "Requested Range Not Satisfiable",
StatusExpectationFailed:   "Expectation Failed",
StatusTeapot:      "I'm a teapot",
StatusPreconditionRequired:   "Precondition Required",
StatusTooManyRequests:    "Too Many Requests",
StatusRequestHeaderFieldsTooLarge: "Request Header Fields Too Large",
StatusUnavailableForLegalReasons: "Unavailable For Legal Reasons",
StatusInternalServerError:   "Internal Server Error",
StatusNotImplemented:    "Not Implemented",
StatusBadGateway:     "Bad Gateway",
StatusServiceUnavailable:   "Service Unavailable",
StatusGatewayTimeout:    "Gateway Timeout",
StatusHTTPVersionNotSupported:  "HTTP Version Not Supported",
StatusNetworkAuthenticationRequired: "Network Authentication Required",
}
// 返回httpcode对应的 状态码描述信息
// 返回空字符串表示状态码 unknown
func StatusText(code int) string {
return statusText[code]
}

以上为个人经验，希望能给大家一个参考，也希望大家多多支持asp之家。如有错误或未考虑完全的地方，望不吝赐教。

来源：https://xiaochuan.blog.csdn.net/article/details/54575001