Storing binary data to a file......

Question

Hi Friends,
I am trying to make a webapp in which users can upload Videos and I can store that videos on the server. I have this bit of code:
    public ActionForward execute(
            ActionMapping mapping,
            ActionForm form,
            HttpServletRequest request,
            HttpServletResponse response) throws Exception{
                    VideoUploadForm myForm = (VideoUploadForm)form;
                    // Process the FormFile
                    FormFile myFile = myForm.getTheFile();
                    byte[] fileData    = myFile.getFileData();
  }My question is, should i store the byte array into some text file???Then how can i read it back and get the original format i.e *.avi or *.mpg.
This might be easy,but this is my first time dealing with binary data,so your help would be appreciated.
Thanks
P.S: Any links would be appreciated

Answer 1

Thanks BalusC,
After lots of hardwork finally I am trying to upload the binary file in the database,but getting this error:
java.sql.SQLException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'desc, file_blob) values(1, 1, 'uploaded file from user', _binary'\0\0�!\0\0�\' at line 1
        at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2928)
        at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1571)
        at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1666)
        at com.mysql.jdbc.Connection.execSQL(Connection.java:2994)
        at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:936)
        at com.mysql.jdbc.PreparedStatement.execute(PreparedStatement.java:773)
        at org.apache.tomcat.dbcp.dbcp.DelegatingPreparedStatement.execute(DelegatingPreparedStatement.java:168)This is my code thats trying to write that binary file:
public class StoreData {
    private static Log log = LogFactory.getLog(StoreData.class);
    private static final String INSERT_BLOB = "Insert into videos.files (id, owner_id, desc, file_blob)" +
                                              " values(1, 1, 'uploaded file from user', ?)";
    public void WriteData(VideoUploadForm myForm){
        log.info("Writing file to database");
        Connection conn = ConnectionUtil.getConnection();
     PreparedStatement stmt = null;
        // Process the FormFile
        FormFile myFile = myForm.getTheFile();
        byte[] bytes = null;
        try{
            bytes = myFile.getFileData();
        }catch(IOException ie){
            log.error("Upload File not Found");
            ie.printStackTrace();
        InputStream is = new ByteArrayInputStream(bytes);
        try {
            stmt = conn.prepareStatement(INSERT_BLOB);
            stmt.setBinaryStream(1,is,bytes.length);
            stmt.execute();
            stmt.close();
        }catch (Exception e) {
            log.error("Error writing data to file:");
            e.printStackTrace();
     } finally {
         ConnectionUtil.closeStatement(stmt);
         ConnectionUtil.closeConnection(conn);
}Looking for some help here.....