如何将curl的命令转换为代码，首先打开浏览器的developer tools，先获取一个curl命令 42ff52a296a1e3983d1e06b114cf4905.png

如图所示，在network里面选择一个请求，并copy as curl
然后打开https://curlconverter.com/ 页面
将curl命令复制进去 a36faed34d12e21472dcbeecfae61689.png

curl命令：

curl 'https://blog.iamdev.cn/' \
  -H 'authority: blog.iamdev.cn' \
  -H 'accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9' \
  -H 'accept-language: zh,en;q=0.9,zh-CN;q=0.8,ja;q=0.7,zh-TW;q=0.6' \
  -H 'cache-control: max-age=0' \
  -H 'cookie: _ga=GA1.1.937104759.1661133120; _ga_0WQ77K1FMC=GS1.1.1661224452.5.1.1661224453.59.0.0' \
  -H 'dnt: 1' \
  -H 'if-modified-since: Mon, 22 Aug 2022 14:22:43 GMT' \
  -H 'sec-ch-ua: ".Not/A)Brand";v="99", "Google Chrome";v="103", "Chromium";v="103"' \
  -H 'sec-ch-ua-mobile: ?0' \
  -H 'sec-ch-ua-platform: "Windows"' \
  -H 'sec-fetch-dest: document' \
  -H 'sec-fetch-mode: navigate' \
  -H 'sec-fetch-site: none' \
  -H 'sec-fetch-user: ?1' \
  -H 'upgrade-insecure-requests: 1' \
  -H 'user-agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.0.0 Safari/537.36' \
  --compressed

转换的python代码如下：

import requests

cookies = {
    '_ga': 'GA1.1.937104759.1661133120',
    '_ga_0WQ77K1FMC': 'GS1.1.1661224452.5.1.1661224453.59.0.0',
}

headers = {
    'authority': 'blog.iamdev.cn',
    'accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9',
    'accept-language': 'zh,en;q=0.9,zh-CN;q=0.8,ja;q=0.7,zh-TW;q=0.6',
    'cache-control': 'max-age=0',
    # Requests sorts cookies= alphabetically
    # 'cookie': '_ga=GA1.1.937104759.1661133120; _ga_0WQ77K1FMC=GS1.1.1661224452.5.1.1661224453.59.0.0',
    'dnt': '1',
    'if-modified-since': 'Mon, 22 Aug 2022 14:22:43 GMT',
    'sec-ch-ua': '".Not/A)Brand";v="99", "Google Chrome";v="103", "Chromium";v="103"',
    'sec-ch-ua-mobile': '?0',
    'sec-ch-ua-platform': '"Windows"',
    'sec-fetch-dest': 'document',
    'sec-fetch-mode': 'navigate',
    'sec-fetch-site': 'none',
    'sec-fetch-user': '?1',
    'upgrade-insecure-requests': '1',
    'user-agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.0.0 Safari/537.36',
}

response = requests.get('https://blog.iamdev.cn/', cookies=cookies, headers=headers)

转换的go代码如下：

package main

import (
	"fmt"
	"io/ioutil"
	"log"
	"net/http"
)

func main() {
	client := &http.Client{}
	req, err := http.NewRequest("GET", "https://blog.iamdev.cn/", nil)
	if err != nil {
		log.Fatal(err)
	}
	req.Header.Set("authority", "blog.iamdev.cn")
	req.Header.Set("accept", "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9")
	req.Header.Set("accept-language", "zh,en;q=0.9,zh-CN;q=0.8,ja;q=0.7,zh-TW;q=0.6")
	req.Header.Set("cache-control", "max-age=0")
	req.Header.Set("cookie", "_ga=GA1.1.937104759.1661133120; _ga_0WQ77K1FMC=GS1.1.1661224452.5.1.1661224453.59.0.0")
	req.Header.Set("dnt", "1")
	req.Header.Set("if-modified-since", "Mon, 22 Aug 2022 14:22:43 GMT")
	req.Header.Set("sec-ch-ua", `".Not/A)Brand";v="99", "Google Chrome";v="103", "Chromium";v="103"`)
	req.Header.Set("sec-ch-ua-mobile", "?0")
	req.Header.Set("sec-ch-ua-platform", `"Windows"`)
	req.Header.Set("sec-fetch-dest", "document")
	req.Header.Set("sec-fetch-mode", "navigate")
	req.Header.Set("sec-fetch-site", "none")
	req.Header.Set("sec-fetch-user", "?1")
	req.Header.Set("upgrade-insecure-requests", "1")
	req.Header.Set("user-agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.0.0 Safari/537.36")
	resp, err := client.Do(req)
	if err != nil {
		log.Fatal(err)
	}
	defer resp.Body.Close()
	bodyText, err := ioutil.ReadAll(resp.Body)
	if err != nil {
		log.Fatal(err)
	}
	fmt.Printf("%s\n", bodyText)
}

转换的java代码如下：

import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.Scanner;

class Main {

	public static void main(String[] args) throws IOException {
		URL url = new URL("https://blog.iamdev.cn/");
		HttpURLConnection httpConn = (HttpURLConnection) url.openConnection();
		httpConn.setRequestMethod("GET");

		httpConn.setRequestProperty("authority", "blog.iamdev.cn");
		httpConn.setRequestProperty("accept", "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9");
		httpConn.setRequestProperty("accept-language", "zh,en;q=0.9,zh-CN;q=0.8,ja;q=0.7,zh-TW;q=0.6");
		httpConn.setRequestProperty("cache-control", "max-age=0");
		httpConn.setRequestProperty("cookie", "_ga=GA1.1.937104759.1661133120; _ga_0WQ77K1FMC=GS1.1.1661224452.5.1.1661224453.59.0.0");
		httpConn.setRequestProperty("dnt", "1");
		httpConn.setRequestProperty("if-modified-since", "Mon, 22 Aug 2022 14:22:43 GMT");
		httpConn.setRequestProperty("sec-ch-ua", "\".Not/A)Brand\";v=\"99\", \"Google Chrome\";v=\"103\", \"Chromium\";v=\"103\"");
		httpConn.setRequestProperty("sec-ch-ua-mobile", "?0");
		httpConn.setRequestProperty("sec-ch-ua-platform", "\"Windows\"");
		httpConn.setRequestProperty("sec-fetch-dest", "document");
		httpConn.setRequestProperty("sec-fetch-mode", "navigate");
		httpConn.setRequestProperty("sec-fetch-site", "none");
		httpConn.setRequestProperty("sec-fetch-user", "?1");
		httpConn.setRequestProperty("upgrade-insecure-requests", "1");
		httpConn.setRequestProperty("user-agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.0.0 Safari/537.36");

		InputStream responseStream = httpConn.getResponseCode() / 100 == 2
				? httpConn.getInputStream()
				: httpConn.getErrorStream();
		Scanner s = new Scanner(responseStream).useDelimiter("\\A");
		String response = s.hasNext() ? s.next() : "";
		System.out.println(response);
	}
}