如何在UriComponentsBuilder中将.csv文件作为queryparam传递

import org.springframework.web.util.UriComponentsBuilder;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.Base64;

public class Main {
    public static void main(String[] args) {
        // 读取.csv文件并转换为Base64编码字符串
        String csvFilePath = "path/to/your/file.csv";
        String base64Csv = convertCsvToBase64(csvFilePath);

        // 创建UriComponentsBuilder对象并添加query参数
        UriComponentsBuilder builder = UriComponentsBuilder.fromUriString("http://example.com/api/endpoint")
                .queryParam("csvData", base64Csv);

        // 获取最终的URI字符串
        String uriString = builder.toUriString();
        System.out.println(uriString);
    }

    private static String convertCsvToBase64(String csvFilePath) {
        try {
            Path path = Paths.get(csvFilePath);
            byte[] csvBytes = Files.readAllBytes(path);
            return Base64.getEncoder().encodeToString(csvBytes);
        } catch (Exception e) {
            e.printStackTrace();
            return "";
        }
    }
}