文件压缩的比率是通过软件的什么参数去设置的

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

public class FileCompressor {

    public static void compressFile(String sourceFilePath, String compressedFilePath) throws IOException {
        File sourceFile = new File(sourceFilePath);

        try (FileOutputStream fos = new FileOutputStream(compressedFilePath);
             ZipOutputStream zipOut = new ZipOutputStream(fos)) {

            compressFileRecursive(sourceFile, sourceFile.getName(), zipOut);
        }
    }

    private static void compressFileRecursive(File sourceFile, String fileName, ZipOutputStream zipOut) throws IOException {
        if (sourceFile.isDirectory()) {
            File[] files = sourceFile.listFiles();
            if (files != null) {
                for (File file : files) {
                    compressFileRecursive(file, fileName + "/" + file.getName(), zipOut);
                }
            }
        } else {
            byte[] buffer = new byte[1024];
            try (FileInputStream fis = new FileInputStream(sourceFile)) {
                zipOut.putNextEntry(new ZipEntry(fileName));
                int length;
                while ((length = fis.read(buffer)) > 0) {
                    zipOut.write(buffer, 0, length);
                }
            }
        }
    }

    public static void main(String[] args) {
        // 压缩文件测试
        String sourceFilePath = "path/to/source/file";
        String compressedFilePath = "path/to/compressed/file.zip";

        try {
            compressFile(sourceFilePath, compressedFilePath);
            System.out.println("文件压缩成功！");
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}