title: GridFSDBFile in spring boot 2.0.1 release
body: <p>I am trying to migrate spring boot 1.5.7 to its latest version realease 2.0.1. In the old version I used this syntax to recover a file.</p>
  
  <pre><code>GridFSDBFile gridFsdbFile = gridFsTemplate.findOne(new Query(Criteria.where("_id").is(fileId)));
  </code></pre>
  
  <p>Do you know how it would be done in the new version? I need </p>
  
  <pre><code>file.setInputStream(gridFsdbFile.getInputStream());
  </code></pre>
  
  <p>ty!</p>