使用net/http包中的http.Get()可發(fā)送GET請(qǐng)求，如resp, err := http.Get("https://httpbin.org/get")；需defer resp.Body.Close()避免資源洩漏；生產(chǎn)環(huán)境應(yīng)創(chuàng)建帶超時(shí)的自定義客戶端，如client := &http.Client{Timeout: 10 * time.Second}；可檢查resp.Status、resp.ContentLength和resp.Header獲取響應(yīng)詳情；始終處理錯(cuò)誤並正確關(guān)閉響應(yīng)體。
To make an HTTP GET request in Golang, you can use the net/http package, which is part of Go's standard library. It provides a simple and effective way to interact with web services. The most straightforward method is using http.Get() , which sends a GET request to a specified URL and returns a response or an error.
Basic GET Request
Here's how to perform a basic GET request:
resp, err := http.Get("https://httpbin.org/get")
if err != nil {
log.Fatal(err)
}
defer resp.Body.Close()
<p>body, err := io.ReadAll(resp.Body)
if err != nil {
log.Fatal(err)
}</p> <p>fmt.Println(string(body))</p>This code sends a GET request to https://httpbin.org/get , reads the response body, and prints it. Always remember to close the response body with defer resp.Body.Close() to avoid resource leaks.
Handling Timeouts and Custom Clients
Using http.Get() directly uses the default client, which has no timeout. In production, it's better to create a custom client with a timeout:
client := &http.Client{
Timeout: 10 * time.Second,
}
resp, err := client.Get("https://httpbin.org/get")
if err != nil {
log.Fatal(err)
}
defer resp.Body.Close()
A custom client gives you control over transport settings, timeouts, and retry logic.
Inspecting Response Details
You can also check the HTTP status code and headers:
fmt.Println("Status:", resp.Status)
fmt.Println("Content-Length:", resp.ContentLength)
<p>for key, value := range resp.Header {
fmt.Printf("Header: %s = %s\n", key, value)
}</p>This helps debug issues or validate expected responses from APIs.
Basically just use http.Get() for quick tasks, but prefer a configured http.Client in real applications for reliability and control. Handle errors, read the body, and close the response properly. That covers the essentials of making GET requests in Go.
以上是如何在 Golang 中發(fā)出 HTTP GET 請(qǐng)求的詳細(xì)內(nèi)容。更多資訊請(qǐng)關(guān)注PHP中文網(wǎng)其他相關(guān)文章！
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