Java原生态Http学习

import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLConnection;
import java.nio.charset.StandardCharsets;

public class HttpURLConnTest {
    public static void main(String[] args) throws  Exception{
        // 原生API
        String urlStr = "https://www.baidu.com/";
        URL url = new URL(urlStr);
        URLConnection urlConnection = url.openConnection();
        HttpURLConnection httpURLConnection = (HttpURLConnection) urlConnection;

        // Http 请求类型
        
//        httpURLConnection.setRequestMethod("GET");
//        httpURLConnection.setRequestProperty("Accept-Charset", "utf-8");
        // 获取HttpUrlConnecton的输入流
        try(InputStream is = httpURLConnection.getInputStream();
            InputStreamReader isr = new InputStreamReader(is, StandardCharsets.UTF_8);
            BufferedReader br = new BufferedReader(isr)
        ) {
            String line;
            while((line = br.readLine()) != null){
                System.out.println(line);
                //
            }
        }
    }
}