Hello all,
At present I am trying to integrate GWT Hibernate and MySQL in
Tomcat5. I am using Hibernate to access my database in a servlet as
public class DBConnectionImpl extends RemoteServiceServlet implements
DBConnection {
private Session session;
public DBConnectionImpl() {
try {
session =
HibernateUtil.getSessionFactory().openSession();
} catch (Exception ex) {
ex.printStackTrace();
}
}
}
I have configured all the necessary Hibernate requirements like
hybernate.cfg.xml, web.xml, context.xml and all necessary java
classes.
But when I want to connect with my database through a rpc call it
shows me error like:
May 15, 2009 7:00:44 PM org.apache.catalina.core.ApplicationContext
log
SEVERE: Exception while dispatching incoming RPC call
com.google.gwt.user.server.rpc.UnexpectedException: Service method
'public abstract com.duke.irb.client.data.User
com.duke.irb.client.dao.DBConnection.authenticateUser
(java.lang.String,java.lang.String)' threw an unexpected exception:
java.lang.UnsupportedOperationException: Not supported by
BasicDataSource
at com.google.gwt.user.server.rpc.RPC.encodeResponseForFailure
(RPC.java:360)
at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse
(RPC.java:546)
at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall
(RemoteServiceServlet.java:166)
at com.google.gwt.user.server.rpc.RemoteServiceServlet.doPost
(RemoteServiceServlet.java:86)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter
(ApplicationFilterChain.java:269)
at org.apache.catalina.core.ApplicationFilterChain.doFilter
(ApplicationFilterChain.java:188)
at org.apache.catalina.core.StandardWrapperValve.invoke
(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke
(StandardContextValve.java:174)
at org.apache.catalina.core.StandardHostValve.invoke
(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke
(ErrorReportValve.java:117)
at org.apache.catalina.core.StandardEngineValve.invoke
(StandardEngineValve.java:108)
at org.apache.catalina.connector.CoyoteAdapter.service
(CoyoteAdapter.java:174)
at org.apache.coyote.http11.Http11Processor.process
(Http11Processor.java:874)
at org.apache.coyote.http11.Http11BaseProtocol
$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:
665)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket
(PoolTcpEndpoint.java:528)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt
(LeaderFollowerWorkerThread.java:81)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run
(ThreadPool.java:689)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.UnsupportedOperationException: Not supported by
BasicDataSource
at org.apache.tomcat.dbcp.dbcp.BasicDataSource.getConnection
(BasicDataSource.java:899)
at org.hibernate.connection.DatasourceConnectionProvider.getConnection
(DatasourceConnectionProvider.java:89)
at org.hibernate.jdbc.ConnectionManager.openConnection
(ConnectionManager.java:446)
at org.hibernate.jdbc.ConnectionManager.getConnection
(ConnectionManager.java:167)
at org.hibernate.jdbc.JDBCContext.connection(JDBCContext.java:142)
at org.hibernate.transaction.JDBCTransaction.begin
(JDBCTransaction.java:85)
at org.hibernate.impl.SessionImpl.beginTransaction(SessionImpl.java:
1353)
at com.duke.irb.server.DBConnectionImpl.authenticateUser
(DBConnectionImpl.java:30)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse
(RPC.java:527)
... 18 more
Please help me out in solving this issue.
I will provide more information further if needed.
I am new to both GWT and Hibernate... :-)
Thanks in advance
Raul
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