我有一個 http 客戶端，它創建到主機的多個連接。我想設置它可以設置到特定主機的最大連接數。go的request.Transport中沒有這樣的選項。我的代碼看起來像package main import ( "fmt" "net/http" "net/url")const ( endpoint_url_fmt = "https://blah.com/api1?%s")func main() { transport := http.Transport{ DisableKeepAlives : false } outParams := url.Values{} outParams.Set("method", "write") outParams.Set("message", "BLAH") for { // Encode as part of URI. outboundRequest, err := http.NewRequest( "GET", fmt.Sprintf(endpoint_url_fmt, outParams.Encode()), nil ) outboundRequest.Close = false _ , err = transport.RoundTrip(outboundRequest) if err != nil { fmt.Println(err) } }}我希望這會創建 1 個連接。當我在 for 循環中調用它時。但這會不斷創建無限數量的連接。使用請求庫的類似 python 代碼只創建一個連接。#!/usr/bin/env pythonimport requestsendpoint_url_fmt = "https://something.com/restserver.php"params = {}params['method'] = 'write'params['category'] = category_errors_scubaparams['message'] = "blah"while True: r = requests.get(endpoint_url_fmt, params = params)由于某種原因，go 代碼沒有重用 http 連接。編輯：go 代碼需要關閉主體以重用連接。 resp , err = transport.RoundTrip(outboundRequest) resp.Close() // This allows the connection to be reused
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搖曳的薔薇
TA貢獻1793條經驗 獲得超6個贊
有一些有趣的改進http.Transport：
// DisableKeepAlives, if true, disables HTTP keep-alives and
// will only use the connection to the server for a single
// HTTP request.
//
// This is unrelated to the similarly named TCP keep-alives.
DisableKeepAlives bool
// ...
// MaxIdleConns controls the maximum number of idle (keep-alive)
// connections across all hosts. Zero means no limit.
MaxIdleConns int // Go 1.7
// MaxIdleConnsPerHost, if non-zero, controls the maximum idle
// (keep-alive) connections to keep per-host. If zero,
// DefaultMaxIdleConnsPerHost is used.
MaxIdleConnsPerHost int
// MaxConnsPerHost optionally limits the total number of
// connections per host, including connections in the dialing,
// active, and idle states. On limit violation, dials will block.
//
// Zero means no limit.
MaxConnsPerHost int // Go 1.11
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