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POSave file in mysql database using Hibernate
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5220556
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2011-03-07T13:58:53.003
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2011-03-07T21:33:04.883
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2011-03-07T21:00:01.533
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I'm trying to figure out the 'correct', failsafe way to save/retrieve files in a mysql database using Hibernate. The solution has to work with files that are quite large, so minimizing the memory footprint would be important. My solution, so far: A model class containing a java.sql.Blob field, the getter annotated with "@Lob". <pre><code>public static void main(String[] args) { DAOFactory factory = DAOFactory.getFactory(); IResultExtraDAO resultExtraDAO = factory.getResultExtraDAO(); factory.getResultExtraDAO().beginTransaction(); ResultExtra resultExtra = new ResultExtra(); LobHelper lh = HibernateUtil.getSession().getLobHelper(); try { File file = new File("/3030.jpg"); FileInputStream fis = new FileInputStream(file); Blob b = lh.createBlob(fis, fis.available()); resultExtra.setFile(b); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } resultExtraDAO.save(resultExtra); factory.getResultExtraDAO().commitTransaction(); } </code></pre> Is this the correct way to do it? Whould there be a risk of running out of memmory if there are manny simultanious uploads and/or large files? Is there another solution that would be better? Also, I'm using the '<a href="http://community.jboss.org/wiki/GenericDataAccessObjects" rel="nofollow">Generic Data Access Object</a>' pattern encapsule hibernate, so I don't like accessing the HibernateUtil directly as I do here, but so far I haven't figured out a good generic way to access it. Suggestions are welcome.
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<java><mysql><hibernate>
Title
Save file in mysql database using Hibernate
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 POSave file in mysql database using Hibernate
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