UploadedFile component - af:inputFile to upload blob Errors - help needed

Question

Hi,
I am working with JDev, Toplink, and ADF Faces. I am using the af:inputFile component to read in a pdf file which I want to save as a blob into my oracle DB.
This is the code on the jspx page:
<af:inputFile label="Label 1"
binding="#{backing_app_ATBlobs1.inputFile1}"
valueChangeListener="#{backing_app_ATBlobs1.fileUploaded}"
id="inputFile1" columns="40"/>
<af:commandButton text="commandButton 1"
binding="#{backing_app_ATBlobs1.commandButton1}"
id="commandButton1"/>
The following is my code in the backing bean:
public void fileUploaded(ValueChangeEvent event) {
UploadedFile file = (UploadedFile)event.getNewValue();
if (file != null && file.getLength() > 0) {
FacesContext context = FacesContext.getCurrentInstance();
FacesMessage message =
new FacesMessage(JSFUtils.getStringFromBundle("srmain.srfileupload.success") +
" " + file.getFilename() + " (" +
file.getLength() + " bytes)");
context.addMessage(event.getComponent().getClientId(context),
message);
FileInputStream fis;
fis = null;
try {
fis = new FileInputStream((File)file);
catch (FileNotFoundException ex)
System.out.println("f2: Oops, FileNotFoundException caught");
finally
System.out.println("f2: finally block");
PreparedStatement pstmt =
cm.getCon().prepareStatement("INSERT INTO BLOBS (BLOB_ID, PROCUR_ID, PF_NUM, DOCUMEN, FILENAME_TXT) " +
"VALUES ('" + BLOB_SEQUENCE.NEXTVAL + ",1, 2, ?, " + file.getFilename() + ")");
pstmt.setBinaryStream(1, fis, (int)file.length());
pstmt.executeUpdate();
Following are the errors:
Name cm Not Found
Method getCon Not Found
Method prepareStatement Not Found
Method length() Not Found
Name BLOB_SEQUENCE.NEXTVAL Not Found, BLOB_ID is sequentially generated.
Exception Not handled: java.sql.SQLException for these lines:
pstmt.setBinaryStream(1, fis, (int)file.length());
pstmt.executeUpdate();
I am not very sure about coding the values for the insert statement. Any help would be appreciated. Thanks!
Lin

Answer 1

Hi,
I got some of the errors taken care of, but I have some questions.
Below is my code:
public void fileUploaded(ValueChangeEvent event) {
// Add event code here...
UploadedFile file = (UploadedFile) event.getNewValue();
if (file != null)
FacesContext context = FacesContext.getCurrentInstance();
FacesMessage message = new FacesMessage( "Successfully uploaded file " + file.getFilename() + " (" + file.getLength() + " bytes)");
context.addMessage(event.getComponent().getClientId(context), message);
// Here's where we could call file.getInputStream()
InputStream fis;
fis = null;
try {
fis = file.getInputStream();
catch (FileNotFoundException ex)
System.out.println("FileNotFoundException caught");
} catch (IOException e) {
// TODO
System.out.println("IOException caught");
finally
System.out.println("finally block");
try{
Class.forName("oracle.jdbc.driver.OracleDriver");
catch (ClassNotFoundException ex) {     
System.out.println("ClassNotFoundException caught");
// DriverManager.registerDriver(new OracleDriver());
try {
Connection conn = DriverManager.getConnection("jdbc:oracle:thin:@oradev2.tceq.state.tx.us:1521:sand3", "kding", "kd5469");
PreparedStatement pstmt =
conn.prepareStatement("INSERT INTO BLOBS (BLOB_ID, PROCUR_ID, PF_NUM, DOCUMEN, FILENAME_TXT) " +
"VALUES (?,?,?,?,?)");
int blob_id;
blob_id = BLOB_SEQUENCE.NEXTVAL;
String filename = file.getFilename();
pstmt.setInt(1, blob_id);
pstmt.setString(2, "1");
pstmt.setString(3, "2");
pstmt.setBinaryStream(4, fis, (int)file.getLength());
pstmt.setString(5, filename);
pstmt.executeUpdate();
catch (SQLException e) {
// TODO
System.out.println("SQLException caught");
I am unable to get the value for the blob_id which is sequentially generated. The error is in this line:
blob_id = BLOB_SEQUENCE.NEXTVAL;
Another question:
Can someone tell me how to display variable in JDeveloper. I tried System.out.println - but I think this is for command line printing?
Thanks for the assistance.
Lin