import java.io.BufferedReader;
import java.io.IOException;
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 Main {
    /**
     * 使用jdk原生的API来请求网页
     * @param args
     */
    public static void main(String[] args) throws IOException {
        String urlStr = "https://www.baidu.com/";
        URL url = new URL(urlStr);
        URLConnection urlConnection = url.openConnection();
        HttpURLConnection httpURLConnection = (HttpURLConnection) urlConnection;
        //获取httpURLConnection的输入流
        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);
        }
    }
}