Hi,
You should verify that you are in a transactionnal mode ie this line might
appear :
myConnection.setAutoCommit(false);
If not, you problem might be solved.
Hope this helps
Pascal
-------------------------------
Pascal PERIN
SESAM - Chargé de mission
Tel : 33 1 47 15 49 66
Fax : 33 1 47 15 49 75
http://www.sesam.org
-------------------------------
> -----Message d'origine-----
> De: Daniel Fisher [SMTP:[EMAIL PROTECTED]]
> Date: vendredi 27 juillet 2001 18:00
> À: [EMAIL PROTECTED]
> Objet: [JDBC] Large Objects
>
> I'm am attempting to make one of my Java servlets work with both MySQL &
> Postgres.
> I'm having some trouble inserting a large object into the database.
> I'm fairly certain that the problem is in my java code because I wrote
> some quick PHP code and it worked fine.
> The main problem is I'm not getting any errors, so I'm kinda stumped.
> The code appears to run fine, but nothing is being inserted into the
> database.
> Any help would be appreciated.
>
> ----- Here is my Java source -----
>
> // getConnection gives me a database connection
> // image is a byte[] passed to this function
>
> Connection conn = null;
> PreparedStatement pstmt = null;
>
> try {
>
> conn = getConnection();
> conn.setAutoCommit(false);
> pstmt = conn.prepareStatement("INSERT INTO dfisher (image) VALUES
> (?)");
> pstmt.setBytes(1, image);
> pstmt.executeUpdate();
>
> } catch (Exception e) {
> e.printStackTrace();
> }
> finally {
> try { if (pstmt != null) pstmt.close(); } catch (Exception e) {
> e.printStackTrace(); }
> try { if (conn != null) conn.close(); } catch (Exception e) {
> e.printStackTrace(); }
> }
> }
>
>
> ----- Here is my Postgres log -----
>
> /usr/local/bin/postmaster: BackendStartup: pid 54277 user dfisher db
> dfisher socket 8
> FindExec: found "/usr/local/bin/postgres" using argv[0]
> 2001-07-27 11:51:35 [54277] DEBUG: connection: host=127.0.0.1
> user=dfisher database=dfisher
> 2001-07-27 11:51:35 [54277] DEBUG: StartTransactionCommand
> 2001-07-27 11:51:35 [54277] DEBUG: query: set datestyle to 'ISO'; select
> getdatabaseencoding()
> 2001-07-27 11:51:35 [54277] DEBUG: ProcessUtility: set datestyle to
> 'ISO'; select getdatabaseencoding()
> 2001-07-27 11:51:35 [54277] DEBUG: CommitTransactionCommand
> 2001-07-27 11:51:35 [54277] DEBUG: StartTransactionCommand
> 2001-07-27 11:51:35 [54277] DEBUG: query: begin
> 2001-07-27 11:51:35 [54277] DEBUG: ProcessUtility: begin
> 2001-07-27 11:51:35 [54277] DEBUG: CommitTransactionCommand
> 2001-07-27 11:51:35 [54277] DEBUG: StartTransactionCommand
> 2001-07-27 11:51:35 [54277] DEBUG: query: SET TRANSACTION ISOLATION
> LEVEL READ COMMITTED
> 2001-07-27 11:51:35 [54277] DEBUG: ProcessUtility: SET TRANSACTION
> ISOLATION LEVEL READ COMMITTED
> 2001-07-27 11:51:35 [54277] DEBUG: CommitTransactionCommand
> 2001-07-27 11:51:35 [54277] DEBUG: StartTransactionCommand
> 2001-07-27 11:51:35 [54277] DEBUG: query: select proname, oid from
> pg_proc where proname = 'lo_open' or proname = 'lo_close' or proname
> = 'lo_creat' or proname = 'lo_unlink' or proname = 'lo_lseek' or
> proname = 'lo_tell' or proname = 'loread'
> or proname = 'lowrite'
> 2001-07-27 11:51:35 [54277] DEBUG: CommitTransactionCommand
> 2001-07-27 11:51:35 [54277] DEBUG: StartTransactionCommand
> 2001-07-27 11:51:35 [54277] DEBUG: CommitTransactionCommand
> 2001-07-27 11:51:35 [54277] DEBUG: StartTransactionCommand
> 2001-07-27 11:51:35 [54277] DEBUG: CommitTransactionCommand
> 2001-07-27 11:51:35 [54277] DEBUG: StartTransactionCommand
> 2001-07-27 11:51:35 [54277] DEBUG: CommitTransactionCommand
> 2001-07-27 11:51:35 [54277] DEBUG: StartTransactionCommand
> 2001-07-27 11:51:35 [54277] DEBUG: CommitTransactionCommand
> 2001-07-27 11:51:35 [54277] DEBUG: StartTransactionCommand
> 2001-07-27 11:51:35 [54277] DEBUG: query: INSERT INTO dfisher (image)
> VALUES (19291)
> 2001-07-27 11:51:35 [54277] DEBUG: CommitTransactionCommand
> /usr/local/bin/postmaster: reaping dead processes...
> /usr/local/bin/postmaster: CleanupProc: pid 54277 exited with status 0
>
> ----- Here is my JServ log -----
>
> DriverManager.getConnection("jdbc:postgresql://localhost:5432/dfisher?user
> =dfisher&password=dfisher")
> trying
> driver[className=org.postgresql.Driver,org.postgresql.Driver@e08d1172]
> getConnection returning
> driver[className=org.postgresql.Driver,org.postgresql.Driver@e08d1172]
> Large Object initialised
>
>
> --
> Daniel Fisher
>
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