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here is my code:

final InputStream inputStream = MY_RECEIVED_INPUT_STREAM;
ZipInputStream zis = new ZipInputStream(inputStream);
ZipEntry zipEntry = zis.getNextEntry();
while (zipEntry != null) {
        zipEntry = zis.getNextEntry();
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
zis.closeEntry();
zis.close();
I receive zip file with many files inside. I want to write these files to database. What I want is to get bytes from each and every ZipEntry and save them to database as Blob (xxxxxx.... part).
How can I get bytes from zipEntry?
I don't have ZipFile, so I can't use something like this:
InputStream stream = zipFile.getInputStream(entry);
byte[] bytes = IOUtils.readAllBytes(zipFile.getInputStream(entry));
Thanks in advance.
You can use something like this:
    InputStream is = MY_RECEIVED_INPUT_STREAM;
    BufferedInputStream bis = null;
    ZipInputStream zis = null;
    ByteArrayOutputStream out = null;
    String name = null;
    byte[] b = new byte[8192];
    int len = 0;
    try {
        bis = new BufferedInputStream(is);
        zis = new ZipInputStream(bis);
        ZipEntry zipEntry = null;
        while ((zipEntry = zis.getNextEntry()) != null) {
            //name of file
            name = zipEntry.getName();
            if (zipEntry.isDirectory()) {
                //I'm skipping directories in this example
                continue;
            out = new ByteArrayOutputStream();
            while ((len = zis.read(b)) > 0) {
                out.write(b, 0, len);
            //save to DB - db_save(String file_name, byte[] file_bytes)
            db_save(name,out.toByteArray());
            out.close();
    } finally {
        if (zis != null) {
            zis.close();
        if (bis != null) {
            bis.close();
        if (is != null) {
            is.close();
                Thank you for the answer. It is so full solution, but I've just accepted the upper answer. Have a good day :)
– Dainius Java
                Jul 29, 2020 at 10:24
ZipFile makes this easier to read but the basic rule is that the ZipInputStream is lined up to the content relating to the current ZipEntry.
https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/zip/ZipInputStream.html#read(byte%5B%5D,int,int)
Read directly from zis until 0 and don't close() until all entries are handled.
    ZipEntry zipEntry;
    while ((zipEntry = zis.getNextEntry()) != null) {
      // xxx Do BLOB creation
      zis.transferTo(outputStream); // Java9
(PS You don't need to call closeEntry())
                Thank you for the answers. Yes, I found out that ZipInputStream is about current ZipEntry. Have a good dday :)
– Dainius Java
                Jul 29, 2020 at 10:19
        
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