java如何实现一个下载文件的功能呢?

下载文件的实现思路:
   1.创建一个URL对象，设置文件下载地址
   2.打开URL连接,获取URLConnection对象
   3.设置URLConnection对象的请求头,指定下载文件的范围（可选）
   4.获取URLConnection对象的输入流,读取下载文件的内容
   5.创建一个FileOutputStream对象,将下载的文件内容写入到本地文件中
   6.关闭URLConnection对象和FileOutputStream对象
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import java.io.FileOutputStream;
import java.io.InputStream;
import java.net.URL;
import java.net.URLConnection;
public class FileDownloader {
public static void downloadFile(String fileUrl, String filePath) throws Exception {
URL url = new URL(fileUrl);
URLConnection conn = url.openConnection();
conn.setRequestProperty("Range", "bytes=0-"); // 设置下载文件的范围，可选
InputStream inputStream = conn.getInputStream();
FileOutputStream outputStream = new FileOutputStream(filePath);
byte[] buffer = new byte[1024];
int len;
while ((len = inputStream.read(buffer)) != -1) {
outputStream.write(buffer, 0, len);
}
inputStream.close();
outputStream.close();
}
public static void main(String[] args) throws Exception {
String fileUrl = "https://java265.com/file.txt";
String filePath = "/path/to/local/file.txt";
downloadFile(fileUrl, filePath);
System.out.println("File downloaded successfully!");
}
}