我正在tar.Gzip使用创建一个文件，GZIPOutputStream并且我添加了另一个逻辑，如果在压缩文件时捕获到任何异常，我的代码将重试 3 次。
当我抛出一个IOException来测试我的重试逻辑时，它抛出一个下面的异常：
java.io.IOException: request to write '4096' bytes exceeds size in header of '2644' bytes for entry 'Alldbtypes'
我在线上遇到异常：org.apache.commons.io.IOUtils.copyLarge(inputStream, tarStream);
private class CompressionStream extends GZIPOutputStream {
// Use compression levels from the deflator class
public CompressionStream(OutputStream out, int compressionLevel) throws IOException {
super(out);
def.setLevel(compressionLevel);
}
}
public void createTAR(){
boolean isSuccessful=false;
int count = 0;
int maxTries = 3;
while(!isSuccessful) {
InputStream inputStream =null;
FileOutputStream outputStream =null;
CompressionStream compressionStream=null;
OutputStream md5OutputStream = null;
TarArchiveOutputStream tarStream = null;
try{
inputStream = new BufferedInputStream(new FileInputStream(rawfile));
File stagingPath = new File("C:\\Workarea\\6d22b6a3-564f-42b4-be83-9e1573a718cd\\b88beb62-aa65-4ad5-b46c-4f2e9c892259.tar.gz");
boolean isDeleted = false;
if(stagingPath.exists()){
isDeleted = stagingPath.delete();
if(stagingPath.exists()){
try {
FileUtils.forceDelete(stagingPath);
}catch (IOException ex){
//ignore
}
}
}
outputStream = new FileOutputStream(stagingPath);
if (isCompressionEnabled) {
compressionStream = new
CompressionStream(outputStream, getCompressionLevel(om));
}
final MessageDigest outputDigest = MessageDigest.getInstance("MD5");
md5OutputStream = new DigestOutputStream(isCompressionEnabled ? compressionStream : outputStream, outputDigest);
tarStream = new TarArchiveOutputStream(new BufferedOutputStream(md5OutputStream));
tarStream.setLongFileMode(TarArchiveOutputStream.LONGFILE_GNU);
tarStream.setBigNumberMode(TarArchiveOutputStream.BIGNUMBER_STAR);
TarArchiveEntry entry = new TarArchiveEntry("Alldbtypes");
entry.setSize(getOriginalSize());
entry.setModTime(getLastModified().getMillis());
tarStream.putArchiveEntry(entry);
org.apache.commons.io.IOUtils.copyLarge(inputStream, tarStream);
inputStream.close();
tarStream.closeArchiveEntry();
tarStream.finish();
tarStream.close();
String digest = Hex.encodeHexString(outputDigest.digest());
setChecksum(digest);
setIngested(DateTime.now());
setOriginalSize(FileUtils.sizeOf(stagingPath));
isSuccessful =true;
} catch (IOException e) {
if (++count == maxTries) {
throw new RuntimeException("Exception: " + e.getMessage(), e);
}
} catch (NoSuchAlgorithmException e) {
throw new RuntimeException(Exception("MD5 hash algo not installed.");
} catch (Exception e) {
throw new RuntimeException("Exception: " + e.getMessage(), e);
} finally {
org.apache.commons.io.IOUtils.closeQuietly(inputStream);
try {
tarStream.flush();
tarStream.finish();
} catch (IOException e) {
e.printStackTrace();
}
org.apache.commons.io.IOUtils.closeQuietly(tarStream);
org.apache.commons.io.IOUtils.closeQuietly(compressionStream);
org.apache.commons.io.IOUtils.closeQuietly(md5OutputStream);
org.apache.commons.io.IOUtils.closeQuietly(outputStream);
}
}
}