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Thread: Simple way to manage users with JDBC/Servlets?

Simple way to manage users with JDBC/Servlets?

From
"Peter Neu"
Date:

Hello,

 

I will have to manage a large amount of users with a postgresql db.

First of all I have to do a major bulk import from a csv file which has this format:

 

Username;Password;Group

 

Later on I will have to manage all users with a webb app. And give the possibility

to search and upload new csv files.

 

I already programmed some CRUD applications with Oracle and Java but I’m looking forward to learn some new

stuff. How would you guys do that?

 

Can the password be auto created by postgresql and converted in md5?

 

My db version 7.4.2

 

Cheers,

Pete  

Re: Simple way to manage users with JDBC/Servlets?

From
Roland Walter
Date:
Roland Walter schrieb:
Peter Neu schrieb:

 

Can the password be auto created by postgresql and converted in md5?

 

I would try to declare a server side function that generates the password from the name and set a default on the password column that uses this function.

There is a md5() function declared in PostgreSQL.

It is mentioned in the documentation for 8.1:

http://www.postgresql.org/docs/8.1/interactive/functions-binarystring.html

But not in the documentation for 7.4, but it is there.
Bullshit, the documentation is here:

http://www.postgresql.org/docs/7.4/interactive/functions-string.html




-- 
Roland Walter                   mailto: rwa (at) mosaic-ag (dot) com
MOSAIC SOFTWARE AG               phone: +49 (0) 22 25 / 88 2-44 9
Am Pannacker 3                     fax: +49 (0) 22 25 / 88 2-20 1
D-53340 Meckenheim                http://www.mosaic-ag.com


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Re: Simple way to manage users with JDBC/Servlets?

From
Roland Walter
Date:
Peter Neu schrieb:

 

Can the password be auto created by postgresql and converted in md5?

 

I would try to declare a server side function that generates the password from the name and set a default on the password column that uses this function.

There is a md5() function declared in PostgreSQL.

It is mentioned in the documentation for 8.1:

http://www.postgresql.org/docs/8.1/interactive/functions-binarystring.html

But not in the documentation for 7.4, but it is there. Tried it on 7.4.13 with

select md5('admin001')

and got

4eef1e1ea34879a2ae60c60815927ed9

BTW, you should update your database, at least to 7.4.13. Better would be 8.1.x.

Regards,
Roland.

 
-- 
Roland Walter                   mailto: rwa (at) mosaic-ag (dot) com
MOSAIC SOFTWARE AG               phone: +49 (0) 22 25 / 88 2-44 9
Am Pannacker 3                     fax: +49 (0) 22 25 / 88 2-20 1
D-53340 Meckenheim                http://www.mosaic-ag.com


Die in dieser E-Mail enthaltenen Nachrichten und Anhaenge sind ausschliesslich fuer den bezeichneten Adressaten bestimmt. Sie koennen rechtlich geschuetzte, vertrauliche Informationen enthalten. Falls Sie nicht der bezeichnete Empfaenger oder zum Empfang dieser E-Mail nicht berechtigt sind, ist die Verwendung, Vervielfaeltigung oder Weitergabe von Nachrichten und Anhaengen untersagt. Falls Sie diese E-Mail irrtuemlich erhalten haben, informieren Sie bitte unverzueglich den Absender und vernichten Sie die E-Mail.

This e-mail message and any attachment are intended exclusively for the named addressee. They may contain confidential information which may also be protected by professional secrecy. Unless you are the named addressee (or authorised to receive for the addressee) you may not copy or use this message or any attachment or disclose the contents to anyone else. If this e-mail was sent to you by mistake please notify the sender immediately and delete this e-mail.

Best Way to handle duplicate key exceptions

From
"Peter Neu"
Date:
Hello,

what is he best way to handle duplicate key exceptions? When I do bulk
import I don't want
the insert process to fail simply because somebody gave me an inconsistent
csv file.

Is there simple way to tell Postgres to simply insert everything that is
good and let me log the errors?

Cheers,
Pete