將ZipOutputStream轉換爲ByteArrayInputStream

Question

我想使用ZipOutputStream壓縮InputStream，然後從壓縮的ZipOutputStream獲取InputStream而不保存光盤上的文件。可能嗎？

Answer 1

我想通了：

public InputStream getCompressed(InputStream is) 
    throws IOException 
{ 
    byte data[] = new byte[2048]; 
    ByteArrayOutputStream bos = new ByteArrayOutputStream(); 
    ZipOutputStream zos = new ZipOutputStream(bos); 
    BufferedInputStream entryStream = new BufferedInputStream(is, 2048); 
    ZipEntry entry = new ZipEntry(""); 
    zos.putNextEntry(entry); 
    int count; 
    while ((count = entryStream.read(data, 0, 2048)) != -1) 
    { 
     zos.write(data, 0, count); 
    } 
    entryStream.close(); 
    zos.closeEntry(); 
    zos.close(); 

    return new ByteArrayInputStream(bos.toByteArray()); 
}