java实现cdn加速

import java.io.File;
import java.io.IOException;
import java.net.HttpURLConnection;
import java.net.URL;

public class CDNExample {
    private static final String CDN_API_URL = "https://api.cdnprovider.com/upload";
    private static final String ACCESS_KEY = "your_access_key";
    private static final String SECRET_KEY = "your_secret_key";

    public static void main(String[] args) {
        try {
            File file = new File("path/to/your/file.jpg");
            String acceleratedUrl = uploadToCDN(file);
            System.out.println("Accelerated URL: " + acceleratedUrl);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    private static String uploadToCDN(File file) throws IOException {
        URL url = new URL(CDN_API_URL);
        HttpURLConnection connection = (HttpURLConnection) url.openConnection();
        connection.setRequestMethod("POST");
        connection.setDoOutput(true);
        connection.setRequestProperty("Authorization", getAuthorizationHeader());
        // 设置其他必要的请求头和请求体

        // 将文件上传至CDN服务器
        // ...

        int responseCode = connection.getResponseCode();
        if (responseCode == HttpURLConnection.HTTP_OK) {
            // 解析响应，获取加速后的URL
            // ...
            return "https://cdnprovider.com/accelerated/path/to/file.jpg";
        } else {
            throw new IOException("Failed to upload file to CDN. Response code: " + responseCode);
        }
    }

    private static String getAuthorizationHeader() {
        // 根据ACCESS_KEY和SECRET_KEY生成授权头
        // ...
        return "Bearer your_authorization_token";
    }
}