I’m new to persevere, I did the helloWorld tutorial, very impressive btw but I’m now trying to connect to a real postgres database and find myself struggling having the driver recognized when I have the feeling it should be dead simple.
I dropped all the jdbc driver for postgres I had to the persevere/lib folder:
- postgresql-8.3-603.jdbc2ee.jar
- postgresql-8.3-603.jdbc2.jar
- postgresql-8.3-603.jdbc3.jar
- postgresql-8.3-603.jdbc4.jar
And yet when I start persevere with the command ‘persvr’ with no argument from my project folder I get the following error message:
java.lang.ClassNotFoundException: org.postgresql.Driver at java.net.URLClassLoader$1.run(URLClassLoader.java:200) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:188) at java.lang.ClassLoader.loadClass(ClassLoader.java:306) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:276) at java.lang.ClassLoader.loadClass(ClassLoader.java:251) at org.mortbay.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoader.java:379) at org.mortbay.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoader.java:341) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:169) at org.persvr.datasource.DatabaseDataSource.initParameters(Unknown Source) at org.persvr.datasource.DatabaseTableDataSource.initParameters(Unknown Source) at org.persvr.data.DataSourceManager.initSource(Unknown Source) at org.persvr.data.DataSourceManager.<clinit>(Unknown Source) at org.persvr.data.Identification.idForString(Unknown Source) at org.persvr.Persevere.load(Unknown Source) at org.persvr.job.SampleData.execute(Unknown Source) at org.persvr.job.Upgrade.execute(Unknown Source) at org.persvr.remote.PersevereFilter.init(Unknown Source) at org.mortbay.jetty.servlet.FilterHolder.doStart(FilterHolder.java:97) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50) at org.mortbay.jetty.servlet.ServletHandler.initialize(ServletHandler.java:620) at org.mortbay.jetty.servlet.Context.startContext(Context.java:140) at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1234) at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:517) at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:460) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50) at org.mortbay.jetty.handler.HandlerCollection.doStart(HandlerCollection.java:152) at org.mortbay.jetty.handler.ContextHandlerCollection.doStart(ContextHandlerCollection.java:156) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50) at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130) at org.mortbay.jetty.Server.doStart(Server.java:222) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50) at org.persvr.util.JettyStart.main(Unknown Source) I’m actually trying to expand the helloWorld project as an exercize, so I’ve added a postgres.json file in my helloWorld/WEB-INF/config folder. Here is the content of that file:
{'id':'postgres.json', 'sources':[ {'name':'addressTable', 'sourceClass':'org.persvr.datasource.DatabaseTableDataSource', 'connection':'jdbc:postgresql://hostname:5432/pnp?user=user1&pass=mypassword', 'driver':'org.postgresql.Driver', 'camelCaseColumnNames': false, 'table':'addr', 'idColumn':'addr_id', 'dataColumns':['addr_stat_cd','addr1','addr2','city','state','zip','zip_ext','cntry_cd','last_upd_uid','last_upd_dttm','create_uid','create_dt tm'], 'schema':{ 'data':{'$ref':'../addressTable/'} } }] } Could anyone tell me why persevere can’t find that postgres driver please?
Thanks, Lancelot.
Figured it out. The postgres driver jar should actually go into the folder: persevere/WEB-INF/lib instead of the persevere/lib.