如何在java中将文件(由URL寻址)读入字符串？

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.URL;

public class ReadFileFromURL {
    public static void main(String[] args) {
        String urlString = "https://example.com/file.txt"; // 替换为你要读取的文件的URL地址

        try {
            URL url = new URL(urlString);
            BufferedReader reader = new BufferedReader(new InputStreamReader(url.openStream()));
            StringBuilder stringBuilder = new StringBuilder();
            String line;

            while ((line = reader.readLine()) != null) {
                stringBuilder.append(line);
                stringBuilder.append("\n");
            }

            reader.close();

            String fileContent = stringBuilder.toString();
            System.out.println(fileContent);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}