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在一个项目中，做gzip解压request消息体的部分用到了两个较旧的库，在mvn打包时候会提示将被移除。
import sun.misc.BASE64Encoder;
import sun.misc.BASE64Decoder;
sun.misc.BASE64Encoder is internal proprietary API and may be removed in a future release
由于项目主体是scala项目，这部分做压缩解压的java代码，我想试着用scala重写：
import java.io.{ByteArrayInputStream, ByteArrayOutputStream}
import java.util.zip.{GZIPInputStream, GZIPOutputStream}
import scala.collection.mutable.ArrayBuffer
object Gzip {
def compress(input: Array[Byte]): Array[Byte] = {
val bos = new ByteArrayOutputStream(input.length)
val gzip = new GZIPOutputStream(bos)
gzip.write(input)
gzip.close()
val compressed = bos.toByteArray
bos.close()
compressed
}
def decompress(compressed: Array[Byte]): Array[Byte] = {
val gzipInputStream = new GZIPInputStream(new ByteArrayInputStream(compressed))
val output = new ArrayBuffer[Byte]()
var totalByteCount = 0
val bytes = new Array[Byte](1024)
while (gzipInputStream.available() == 1) {
val byteCount = gzipInputStream.read(bytes)
if (byteCount > 0) {
output ++= bytes.take(byteCount)
totalByteCount += byteCount
}
}
output.take(totalByteCount).toArray
}
}