vijay harikrishna [https://community.jboss.org/people/harikris] created the discussion "h2console.war and postgreSQL" To view the discussion, visit: https://community.jboss.org/message/777032#777032 -------------------------------------------------------------- Hi All, Installed AS 7.1.1.Final on my MacBook Pro. Downloaded the Quickstart examples. Was able to successfully deploy and test helloworld, jboss-as-greeter wars. Then i set up the postgresql database engine to try jboss-as-cmt example. I was able to compile and deploy it. Everything works great except for one thing - i am unable to connect to the postgresql database from the h2console web-app that is shipped with the application server. The jboss-as-cmt war works perfectly i.e i am able to add customers to the invoice. I can psql into the db engine and i can see all the records. My only problem is that i can't use h2console webapp to get into my jboss-as-cmt postgres database i created. I am using: "org.postgresql.Driver" for the Driver Class field. "jdbc:postgresql://127.0.0.1:5432/jboss-as-cmt" for the JDBC URL. This is the same as my connection-url value set in the standalone-full.xml config file. "sa" for username and password. When i press the "Test Connection" button on the h2console app, unfortunately i see - http://localhost:8080/h2console/console/test.do?jsessionid=12813e0be3e4ba... Class "org.postgresql.Driver" not found [90086-161] org.h2.message.DbException: Class "org.postgresql.Driver" not found [90086-161]     at org.h2.message.DbException.get(DbException.java:158)     at org.h2.util.Utils.loadUserClass(Utils.java:429)     at org.h2.util.JdbcUtils.getConnection(JdbcUtils.java:146)     at org.h2.server.web.WebServer.getConnection(WebServer.java:653)     at org.h2.server.web.WebApp.test(WebApp.java:839)     at org.h2.server.web.WebApp.process(WebApp.java:215)     at org.h2.server.web.WebApp.processRequest(WebApp.java:164)     at org.h2.server.web.WebServlet.doGet(WebServlet.java:118)     at org.h2.server.web.WebServlet.doPost(WebServlet.java:153)     at javax.servlet.http.HttpServlet.service(HttpServlet.java:754)     at javax.servlet.http.HttpServlet.service(HttpServlet.java:847)     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:329)     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248)     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275)     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161)     at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:153)     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:155)     at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)     at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:368)     at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877)     at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:671)     at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:930)     at java.lang.Thread.run(Thread.java:680) Caused by: org.h2.jdbc.JdbcSQLException: Class "org.postgresql.Driver" not found [90086-161]     at org.h2.message.DbException.getJdbcSQLException(DbException.java:329)     ... 24 more Caused by: java.lang.ClassNotFoundException: org.postgresql.Driver from [Module "com.h2database.h2:main" from local module loader @b4e29b (roots: /Users/avyayatek/Downloads/jboss-as-7.1.1.Final/modules)]     at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:190)     at org.jboss.modules.ConcurrentClassLoader.performLoadClassUnchecked(ConcurrentClassLoader.java:468)     at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:456)     at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:423)     at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:398)     at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:120)     at java.lang.Class.forName0(Native Method)     at java.lang.Class.forName(Class.java:169)     at org.h2.util.Utils.loadUserClass(Utils.java:424)     ... 22 more I am able to establish a successful connection from the jboss admin management console ( http://localhost:9990/console http://localhost:9990/console) to the datasource. On the datasources profile panel, i have the name of the datasource set to "postgresDS", jndi set to "java:jboss/postgresDS". Connection URL is same as what i am use on the h2console - "jdbc:postgresql://127.0.0.1:5432/jboss-as-cmt" I don't know why h2console is not connecting to the postgresql db engine. It makes a successful connection to the h2 in-memory database that is used in the jboss-as-greeter example. I have placed the JDBC driver in the $JBOSS_HOME/modules/org/postgresql/main folder. Created the module.xml there. There is a Driver.class file inside the jar in ~/org/postgresql/ folder. I have modified the $JBOSS_HOME/standalone/configuration/standalone-full.xml to add the postgresql related datasource and driver sections. As i said, i can build jboss-as-cmt and deploy and it works as expected. If i could make the h2console connect to this postgresql database, it will give me some peace. I am a newbie to JBoss and server side stuff in general. I have attached some pics for reference. Thanks for your time. -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/777032#777032] Start a new discussion in Beginner's Corner at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&...]