httpKit

Documentation

Overview

Package httpKit

请求头 || 响应头 key: 不区分大小写

Index

• Constants
• func AddHeader(header http.Header, key, value string)
• func DelHeader(header http.Header, key string)
• func GetContentType(data []byte) string
• func GetFormFile(r *http.Request, key string, maxMemory int64) (multipart.File, *multipart.FileHeader, error)
• func GetHeader(header http.Header, key string) string
• func GetHeaderValues(header http.Header, key string) []string
• func GetOrigin(header http.Header) string
• func GetPostParam(r *http.Request, key string) (string, error)
• func GetProto(req *http.Request) string
• func GetRequestRoute(req *http.Request) string
• func GetRequestUrl(req *http.Request) string
• func GetUrlParam(r *http.Request, key string) string
• func GetUrlParam1(r *http.Request, key string) (string, error)
• func GetUserAgent(header http.Header) string
• func MakeRequestBodySeekable(r *http.Request) error
• func OverridePostRequestBody(req *http.Request, m map[string]string)
• func PolyfillContextPath(relativePath string) string
• func Proxy(w http.ResponseWriter, r *http.Request, scheme, addr string, ...) error
• func RespondData(w http.ResponseWriter, code int, contentType string, data []byte) error
• func RespondFile(w http.ResponseWriter, r *http.Request, code int, filePath, fileName string) error
• func RespondJson(w http.ResponseWriter, code int, obj any) error
• func RespondString(w http.ResponseWriter, code int, format string, values ...any) error
• func RespondStringData(w http.ResponseWriter, code int, data []byte) error
• func SetCacheControlNoCache(header http.Header)
• func SetCacheControlNoStore(header http.Header)
• func SetHeader(header http.Header, key, value string)
• func Status(w http.ResponseWriter, code int)
• type ProxyOption
  • func WithErrorLogger(errorLogger *log.Logger) ProxyOption
  • func WithQueryParams(queryParams map[string]string) ProxyOption
  • func WithReqUrlPath(reqUrlPath *string) ProxyOption
• type Repeat
  • func (p *Repeat) Close() error
  • func (p *Repeat) Read(val []byte) (n int, err error)
  • func (p *Repeat) Reset()

Constants

const (
	// PlainContentType 纯文本格式
	PlainContentType = "text/plain; charset=utf-8"
	// JsonContentType JSON数据格式
	JsonContentType = "application/json; charset=utf-8"
	// OctetStreamContentType 二进制流数据（如常见的文件下载）
	/*
		参考：https://www.runoob.com/http/http-content-type.html
	*/
	OctetStreamContentType = "application/octet-stream; charset=utf-8"
)

Functions

func AddHeader

func AddHeader(header http.Header, key, value string)

AddHeader

e.g.

header := make(map[string][]string)

fmt.Println(header)					// map[]
httpKit.AddHeader(header, "k", "0")
fmt.Println(header)					// map[K:[0]]
httpKit.AddHeader(header, "k", "1")
fmt.Println(header)					// map[K:[0 1]]

func DelHeader

func DelHeader(header http.Header, key string)

func GetContentType

func GetContentType(data []byte) string

GetContentType 获取 ContentType(即MimeType).

@return 保底 "application/octet-stream"

e.g. ([]byte(nil)) => "text/plain; charset=utf-8" ([]byte{}) => "text/plain; charset=utf-8"

func GetFormFile

func GetFormFile(r *http.Request, key string, maxMemory int64) (multipart.File, *multipart.FileHeader, error)

GetFormFile

[Go] golang获取http中的get传递的参数

https://www.cnblogs.com/taoshihan/p/12943118.html

@param maxMemory 可以为-1，此时将采用默认值

func GetHeader

func GetHeader(header http.Header, key string) string

GetHeader

PS: 存在多个值的话（[]string），返回第一个值.

@param key 不存在对应值的话，将返回 ""

func GetHeaderValues

func GetHeaderValues(header http.Header, key string) []string

GetHeaderValues

@param key 不存在对应值的话，将返回 nil

func GetOrigin

func GetOrigin(header http.Header) string

GetOrigin 获取请求的Origin

func GetPostParam

func GetPostParam(r *http.Request, key string) (string, error)

GetPostParam

[Go] golang获取http中的get传递的参数

https://www.cnblogs.com/taoshihan/p/12943118.html

func GetProto

func GetProto(req *http.Request) string

GetProto

@return "HTTP/1.0" || "HTTP/1.1" || ...

func GetRequestRoute

func GetRequestRoute(req *http.Request) string

GetRequestRoute 获取请求的路由.

func GetRequestUrl

func GetRequestUrl(req *http.Request) string

GetRequestUrl 返回当前接口的url.

PS: 不包括query数据.

func GetUrlParam

func GetUrlParam(r *http.Request, key string) string

GetUrlParam

[Go] golang获取http中的get传递的参数

https://www.cnblogs.com/taoshihan/p/12943118.html

func GetUrlParam1

func GetUrlParam1(r *http.Request, key string) (string, error)

GetUrlParam1

[Go] golang获取http中的get传递的参数

https://www.cnblogs.com/taoshihan/p/12943118.html

func GetUserAgent

func GetUserAgent(header http.Header) string

GetUserAgent 获取http请求头中"User Agent"的值.

参考: https://www.sunzhongwei.com/golang-gin-for-user-agent-in-http-request-header-value

e.g. Chrome浏览器: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.0.0 Safari/537.36 Safari浏览器: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/15.5 Safari/605.1.15

func MakeRequestBodySeekable

func MakeRequestBodySeekable(r *http.Request) error

MakeRequestBodySeekable

PS: (1) 一般与 proxy() 搭配使用. (2) 某个路由涉及代理（请求转发）的话，需要在handler里面首先调用此方法.

func OverridePostRequestBody

func OverridePostRequestBody(req *http.Request, m map[string]string)

OverridePostRequestBody 覆盖POST请求的请求体.

func PolyfillContextPath

func PolyfillContextPath(relativePath string) string

PolyfillContextPath *

• e.g.
• "" => ""
• "/" => "/"
• "//" => "/"
• "///" => "/"
• "/c/////c//" => "/c/c/" *
• @return 优化过的ContextPath

func Proxy

func Proxy(w http.ResponseWriter, r *http.Request, scheme, addr string, options ...ProxyOption) error

Proxy 代理请求（反向代理，请求转发）.

func RespondData

func RespondData(w http.ResponseWriter, code int, contentType string, data []byte) error

RespondData 响应字节流（二进制流）

参考: gin里面的 Context.Data() .

@return 如果不为nil，建议输出到控制台

func RespondFile

func RespondFile(w http.ResponseWriter, r *http.Request, code int, filePath, fileName string) error

RespondFile 响应文件

参考: gin里面的 Context.File() 和 Context.FileAttachment() .

@param filePath 文件路径 @param fileName 文件名（可以为""，此时将从 传参filePath 中获取） @return 如果不为nil，建议输出到控制台

func RespondJson

func RespondJson(w http.ResponseWriter, code int, obj any) error

RespondJson

参考: gin里面的 Context.JSON() .

func RespondString

func RespondString(w http.ResponseWriter, code int, format string, values ...any) error

RespondString

参考: gin里面的 Context.String() .

func RespondStringData

func RespondStringData(w http.ResponseWriter, code int, data []byte) error

func SetCacheControlNoCache

func SetCacheControlNoCache(header http.Header)

SetCacheControlNoCache 实际上是有缓存的）浏览器对请求回来的response做缓存，但是每次在向客户端（浏览器）提供响应数据时，缓存都要向服务器评估缓存响应的有效性。

PS: (1) 一般情况下， "no-cache" 就够了； (2) 详见"Web.docx".

func SetCacheControlNoStore

func SetCacheControlNoStore(header http.Header)

SetCacheControlNoStore 禁止一切缓存.

PS: 详见"Web.docx".

func SetHeader

func SetHeader(header http.Header, key, value string)

SetHeader

e.g.

header := make(map[string][]string)

fmt.Println(header) 				// map[]
httpKit.AddHeader(header, "k", "0")
fmt.Println(header) 				// map[K:[0]]
httpKit.AddHeader(header, "k", "1")
fmt.Println(header) 				// map[K:[0 1]]

httpKit.SetHeader(header, "k", "2")
fmt.Println(header) 				// map[K:[2]]
httpKit.SetHeader(header, "k", "")
fmt.Println(header) 				// map[]

func Status

func Status(w http.ResponseWriter, code int)

Status 设置响应的http状态码

PS: (1) 不建议多次设置 http状态码； (2) 如果多次设置的话，感觉 第一次设置的值 会生效.

@param code -1: 不设置http状态码

Types

type ProxyOption

type ProxyOption func(opts *proxyOptions)

func WithErrorLogger

func WithErrorLogger(errorLogger *log.Logger) ProxyOption

func WithQueryParams

func WithQueryParams(queryParams map[string]string) ProxyOption

func WithReqUrlPath

func WithReqUrlPath(reqUrlPath *string) ProxyOption

type Repeat

type Repeat struct {
	Reader io.ReaderAt
	Offset int64
}

func (*Repeat) Close

func (p *Repeat) Close() error

func (*Repeat) Read

func (p *Repeat) Read(val []byte) (n int, err error)

Read 重写读方法，使每次读取request.Body时能从指定位置读取

func (*Repeat) Reset

func (p *Repeat) Reset()

Reset 重置偏移量