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h2console.war and postgreSQL
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created by <a href="https://community.jboss.org/people/harikris">vijay harikrishna</a> in <i>Beginner's Corner</i> - <a href="https://community.jboss.org/message/777032#777032">View the full discussion</a>
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<div class="jive-rendered-content"><p>Hi All,</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Installed AS 7.1.1.Final on my MacBook Pro.</p><p>Downloaded the Quickstart examples. Was able to successfully deploy and test helloworld, jboss-as-greeter wars.</p><p>Then i set up the postgresql database engine to try jboss-as-cmt example. I was able to compile and deploy it.</p><p>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.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>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.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I am using:</p><p>"org.postgresql.Driver" for the Driver Class field.</p><p>"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.</p><p>"sa" for username and password.</p><p>When i press the "Test Connection" button on the h2console app, unfortunately i see -</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><a class="jive-link-external-small" href="http://localhost:8080/h2console/console/test.do?jsessionid=12813e0be3e4ba68413708fd1d6d521d#">Class "org.postgresql.Driver" not found [90086-161]</a><span id="st0" style="color: #ff0000; font-family: Arial, sans-serif; font-size: 12px;"><br/>org.h2.message.DbException: Class "org.postgresql.Driver" not found [90086-161]<br/>    at org.h2.message.DbException.get(DbException.java:158)<br/>    at org.h2.util.Utils.loadUserClass(Utils.java:429)<br/>    at org.h2.util.JdbcUtils.getConnection(JdbcUtils.java:146)<br/>    at org.h2.server.web.WebServer.getConnection(WebServer.java:653)<br/>    at org.h2.server.web.WebApp.test(WebApp.java:839)<br/>    at org.h2.server.web.WebApp.process(WebApp.java:215)<br/>    at org.h2.server.web.WebApp.processRequest(WebApp.java:164)<br/>    at org.h2.server.web.WebServlet.doGet(WebServlet.java:118)<br/>    at org.h2.server.web.WebServlet.doPost(WebServlet.java:153)<br/>    at javax.servlet.http.HttpServlet.service(HttpServlet.java:754)<br/>    at javax.servlet.http.HttpServlet.service(HttpServlet.java:847)<br/>    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:329)<br/>    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248)<br/>    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275)<br/>    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161)<br/>    at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:153)<br/>    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:155)<br/>    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)<br/>    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)<br/>    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:368)<br/>    at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877)<br/>    at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:671)<br/>    at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:930)<br/>    at java.lang.Thread.run(Thread.java:680)<br/>Caused by: org.h2.jdbc.JdbcSQLException: Class "org.postgresql.Driver" not found [90086-161]<br/>    at org.h2.message.DbException.getJdbcSQLException(DbException.java:329)<br/>    ... 24 more<br/>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)]<br/>    at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:190)<br/>    at org.jboss.modules.ConcurrentClassLoader.performLoadClassUnchecked(ConcurrentClassLoader.java:468)<br/>    at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:456)<br/>    at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:423)<br/>    at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:398)<br/>    at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:120)<br/>    at java.lang.Class.forName0(Native Method)<br/>    at java.lang.Class.forName(Class.java:169)<br/>    at org.h2.util.Utils.loadUserClass(Utils.java:424)<br/>    ... 22 more</span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span>I am able to establish a successful connection from the jboss admin management console (</span><a class="jive-link-external-small" href="http://localhost:9990/console" target="_blank">http://localhost:9990/console</a><span>) 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"</span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>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.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>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.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>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.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I am a newbie to JBoss and server side stuff in general.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I have attached some pics for reference.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Thanks for your time.</p></div>
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