Re: Right version of jdbc

[Dave Cramer <davecramer@postgres.rocks>]

Please put this project on github so we can see it.

Thanks

Dave Cramer

www.postgres.rocks

On Thu, 28 Sept 2023 at 11:53, Raivo Rebane <raivore55@xxxxxxxxx> wrote:

Or may be I am using wrong version of Java - java version "17.0.8" 2023-07-18 LTS

Raivo

On Thu, Sep 28, 2023 at 6:41 PM Raivo Rebane <raivore55@xxxxxxxxx> wrote:

Now I changed the Postgres Server to version 15 and making Tomcat 9.0 project.

Now I am using postgresql-42.6.0.jar driver, but Tomcat gives error :

java.sql.SQLException: No suitable driver found for jdbc:postgresql://localhost:5432/mushroom_database

What driver I have to use for suitable driver.

Or must I downgrade my postgres version ?

Regards

Raivo

On Thu, Sep 28, 2023 at 12:32 PM Dave Cramer <davecramer@postgres.rocks> wrote:

Dave Cramer

www.postgres.rocks

On Thu, 28 Sept 2023 at 02:18, Raivo Rebane <raivore55@xxxxxxxxx> wrote:

Hi,

I made a new Java application Eclipse Dynamic WEB application and want to use Postgres - PostgreSQL 10.14 on x86_64-pc-linux-gnu, compiled by gcc (Ubuntu 9.3.0-10ubuntu2) 9.3.0, 64-bit and Postgis - 2.4 USE_GEOS=1 USE_PROJ=1 USE_STATS=1.

I added some jdbc-s in my project webapps/WEB-INF/lib directory which now contains - javax.servlet-api.jar  postgis-jdbc-2.2.1.jar  postgresql-42.2.5.jre7.jar.

  postgresql-42.2.5.jre7.jar. is for java 7. 

I suggest you use the latest versions of postgis and postgres jdbc

Dave

But they don't fit the needs and I got from tomcat -

java.sql.SQLException: No suitable driver found for jdbc:postgresql://localhost:5432/mushroom_database
at java.sql/java.sql.DriverManager.getConnection(DriverManager.java:702)
at java.sql/java.sql.DriverManager.getConnection(DriverManager.java:228)
at MushroomAPIs.AddMushrooms.doGet(AddMushrooms.java:30)

What's wrong. Or is better to use more newer postgres. And then which jdbc-I need to use ?

Regards

Raivo

On Wed, Sep 27, 2023 at 12:43 PM Dave Cramer <davecramer@postgres.rocks> wrote:

First of all please use reply all so that everyone sees the answers.

Not sure since PgObject is certainly in the jdbc jar. pgjdbc/pgjdbc/src/main/java/org/postgresql/util/PGobject.java at 5709a20fbef453749d2394e11502527e4a3ab5bb · pgjdbc/pgjdbc (github.com)

I suggest at this point you provide a test project on github that you can share.

There is something wrong with the classpath

Dave Cramer

www.postgres.rocks

On Wed, 27 Sept 2023 at 01:52, Raivo Rebane <raivore55@xxxxxxxxx> wrote:

Hi,

Thanks for response, but if I using following dependencies :

<dependencies>

<dependency>

<groupId>net.postgis</groupId>

<artifactId>postgis-jdbc</artifactId>

<version>2021.1.0</version>

</dependency>

<dependency>

<groupId>org.postgresql</groupId>

<artifactId>postgresql</artifactId>

<version>42.6.0</version> <!-- Kasuta kõige uuemat versiooni -->

</dependency>

</dependencies>

I have error :

The type org.postgresql.util.PGobject cannot be resolved. It is indirectly referenced from required type org.postgis.PGgeometry

What is wrong with me ?

Raivo