使用GzipInputStream解压缩byte[]

我有一个压缩和解压缩字节数组的类；

public class Compressor
{
    public static byte[] compress(final byte[] input) throws IOException
    {
        try (ByteArrayOutputStream bout = new ByteArrayOutputStream();
                GZIPOutputStream gzipper = new GZIPOutputStream(bout))
        {
            gzipper.write(input, 0, input.length);
            gzipper.close();

            return bout.toByteArray();
        }
    }

    public static byte[] decompress(final byte[] input) throws IOException
    {
        try (ByteArrayInputStream bin = new ByteArrayInputStream(input);
                GZIPInputStream gzipper = new GZIPInputStream(bin))
        {
            // Not sure where to go here
        }
    }
}

如何解压缩输入并返回字节数组？

注意：由于字符编码问题，我不想对字符串进行任何转换。

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解决方案

您缺少的代码类似于

byte[] buffer = new byte[1024];
ByteArrayOutputStream out = new ByteArrayOutputStream();

int len;
while ((len = gzipper.read(buffer)) > 0) {
    out.write(buffer, 0, len);
}

gzipper.close();
out.close();
return out.toByteArray();