如何通过struts以oci协议将文件上传到oracle数据库的blob字段

stmt.executeUpdate(sql) ;

conn.commit() ;

stmt.close() ;

stmt = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_UPDATABLE);

sql = "select " +actionpart + " from regunion where union_id= " + union_Id +" and union_Version = "+ union_Version + " for update ";

BlobDetails = stmt.executeQuery(sql);

if (BlobDetails.next()) {

BLOB l_mapBlob = (BLOB)BlobDetails.getBlob(1);

OutputStream l_blobOutputStream = ((BLOB) l_mapBlob).getBinaryOutputStream();

byte[] l_buffer = new byte[10* 1024];

int l_nread = 0;

while ((l_nread=stream.read(l_buffer)) != -1) // Read from file

{

l_blobOutputStream.write(l_buffer,0,l_nread); // Write to Blob

}

stream.close();

l_blobOutputStream.close ();

}

BlobDetails.close();

conn.commit() ;