GZIPInputStream无法在接收端解码(设置的代码长度无效)

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.util.zip.GZIPInputStream;

public class GZIPExample {
    public static byte[] decompressGZIP(byte[] compressedData) throws IOException {
        ByteArrayInputStream bis = new ByteArrayInputStream(compressedData);
        GZIPInputStream gis = new GZIPInputStream(bis);
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        byte[] buffer = new byte[1024];
        int len;
        while ((len = gis.read(buffer)) != -1) {
            bos.write(buffer, 0, len);
        }
        gis.close();
        return bos.toByteArray();
    }

    public static void main(String[] args) {
        try {
            byte[] compressedData = ... // 获取压缩后的数据
            byte[] decompressedData = decompressGZIP(compressedData);
            // 处理解压后的数据
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}