Upload a file to the application top using File Upload feature of OAF

Question

Hi,
I am facing some problem when trying to upload a file from my desktop to the application directory (e.g. AR TOP).
I do not want to use the fnd_lob table,want to load the file to that directory directory, is it possible using OAF file upload?

Answer 1

Refer the following code
* Method used to write the contents (data) from an Oracle BLOB column to
* an O/S file. This method uses one of two ways to get data from the BLOB
* column - namely using Streams. The other way to read data from an
* Oracle BLOB column is to use getBytes() method.
* @throws java.io.IOException
* @throws java.sql.SQLException
public void readBLOBToFileStream()
throws IOException, SQLException {
FileOutputStream outputFileOutputStream = null;
InputStream blobInputStream = null;
String sqlText = null;
Statement stmt = null;
ResultSet rset = null;
BLOB image = null;
int chunkSize;
byte[] binaryBuffer;
int bytesRead = 0;
int bytesWritten = 0;
int totBytesRead = 0;
int totBytesWritten = 0;
try {
stmt = conn.createStatement();
outputBinaryFile2 = new File(outputBinaryFileName2);
outputFileOutputStream = new FileOutputStream(outputBinaryFile2);
sqlText =
"SELECT image " +
"FROM test_blob " +
"WHERE id = 2 " ;
rset = stmt.executeQuery(sqlText);
rset.next();
image = ((OracleResultSet) rset).getBLOB("image");
// Will use a Java InputStream object to read data from a BLOB (can
// also be used for a CLOB) object. In this example, we will use an
// InputStream to read data from a BLOB.
blobInputStream = image.getBinaryStream();
chunkSize = image.getChunkSize();
binaryBuffer = new bytechunkSize;
while ((bytesRead = blobInputStream.read(binaryBuffer)) != -1) {
// Loop through while reading a chunk of data from the BLOB
// column using an InputStream. This data will be stored
// in a temporary buffer that will be written to disk.
outputFileOutputStream.write(binaryBuffer, 0, bytesRead);
totBytesRead += bytesRead;
totBytesWritten += bytesRead;
outputFileOutputStream.close();
blobInputStream.close();
conn.commit();
rset.close();
stmt.close();
System.out.println(
"==========================================================\n" +
" INPUT STREAMS METHOD\n" +
"==========================================================\n" +
"Wrote BLOB column data to file " + outputBinaryFile2.getName() + ".\n" +
totBytesRead + " bytes read.\n" +
totBytesWritten + " bytes written.\n"
} catch (IOException e) {
System.out.println("Caught I/O Exception: (Write BLOB value to file - Streams Method).");
e.printStackTrace();
throw e;
} catch (SQLException e) {
System.out.println("Caught SQL Exception: (Write BLOB value to file - Streams Method).");
System.out.println("SQL:\n" + sqlText);
e.printStackTrace();
throw e;
--Prasanna