golang 使用 http socks 代理

實例如下:

package main
 
import (
	"fmt"
	"io/ioutil"
	"net/http"
	"net/url"
)
 
const (
	HttpProxy  = "http://127.0.0.1:6152"
	SocksProxy = "socks5://127.0.0.1:6153"
)
 
func main() {
	proxy := func(_ *http.Request) (*url.URL, error) {
		return url.Parse(HttpProxy)
	}
 
	httpTransport := &http.Transport{
		Proxy: proxy,
	}
 
	httpClient := &http.Client{
		Transport: httpTransport,
	}
 
	req, err := http.NewRequest("GET", "https://api.ip.sb/ip", nil)
	if err != nil {
		// handle error
	}
 
	resp, err := httpClient.Do(req)
	defer resp.Body.Close()
 
	body, err := ioutil.ReadAll(resp.Body)
	if err != nil {
		// handle error
	}
 
	fmt.Println(string(body))
 
	proxy = func(_ *http.Request) (*url.URL, error) {
		return url.Parse(SocksProxy)
	}
 
	httpTransport = &http.Transport{
		Proxy: proxy,
	}
 
	httpClient = &http.Client{
		Transport: httpTransport,
	}
 
	req, err = http.NewRequest("GET", "https://api.ip.sb/ip", nil)
	if err != nil {
		// handle error
	}
 
	resp, err = httpClient.Do(req)
	defer resp.Body.Close()
 
	body, err = ioutil.ReadAll(resp.Body)
	if err != nil {
		// handle error
	}
 
	fmt.Println(string(body))
}

可以驗證:打印的響應中確實爲代理 IP。

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來源https://blog.csdn.net/whatday/article/details/109287150