It seems like a problem with your client-side code. I'm pretty sure it's a problem with your web.xml file (not declaring your servlet) or with the path you use to instantiate the RPC interface.
On Sat, Apr 4, 2009 at 8:14 AM, Cryssyenddo <[email protected]> wrote: > > Hi, > > I'm fresh to GWT. > I'm using eclipse to develop a GWT appication and i'm having problems > connecting to my database. > > project name is vCarePortal. I've included my JDBC in eclipse in the > project libraries, and here's my method at my vCarePortal.server > package: > > private Statement stmt; > private String url = "jdbc:mysql://cpcc-2009:3306/"; > private String db = "charityportal"; > private String driver = "com.mysql.jdbc.Driver"; > private String user = "root"; > private String password = "password"; > > /** Connect to database */ > public void connectDatabase(){ > try{ > > Class.forName(driver); > System.out.println("Driver loaded"); > > Connection connection = DriverManager.getConnection(url > +db,user,password); > System.out.println("Database Connected"); > > stmt = connection.createStatement(); > } > > > > catch (Exception ex) { > ex.printStackTrace(); > } > } > > But when i tried to run it, these errors popped out: > > [ERROR] Unable to instantiate > 'vCarePortal.server.DiscussionBoardServiceImpl' > java.lang.ClassNotFoundException: > vCarePortal.server.DiscussionBoardServiceImpl > at java.net.URLClassLoader$1.run(Unknown Source) > at java.security.AccessController.doPrivileged(Native Method) > at java.net.URLClassLoader.findClass(Unknown Source) > at java.lang.ClassLoader.loadClass(Unknown Source) > at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) > at java.lang.ClassLoader.loadClass(Unknown Source) > at java.lang.ClassLoader.loadClassInternal(Unknown Source) > at java.lang.Class.forName0(Native Method) > at java.lang.Class.forName(Unknown Source) > at com.google.gwt.dev.shell.GWTShellServlet.tryGetOrLoadServlet > (GWTShellServlet.java:936) > at com.google.gwt.dev.shell.GWTShellServlet.service > (GWTShellServlet.java:277) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:802) > at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter > (ApplicationFilterChain.java:237) > at org.apache.catalina.core.ApplicationFilterChain.doFilter > (ApplicationFilterChain.java:157) > at org.apache.catalina.core.StandardWrapperValve.invoke > (StandardWrapperValve.java:214) > at org.apache.catalina.core.StandardValveContext.invokeNext > (StandardValveContext.java:104) > at org.apache.catalina.core.StandardPipeline.invoke > (StandardPipeline.java:520) > at org.apache.catalina.core.StandardContextValve.invokeInternal > (StandardContextValve.java:198) > at org.apache.catalina.core.StandardContextValve.invoke > (StandardContextValve.java:152) > at org.apache.catalina.core.StandardValveContext.invokeNext > (StandardValveContext.java:104) > at org.apache.catalina.core.StandardPipeline.invoke > (StandardPipeline.java:520) > at org.apache.catalina.core.StandardHostValve.invoke > (StandardHostValve.java:137) > at org.apache.catalina.core.StandardValveContext.invokeNext > (StandardValveContext.java:104) > at org.apache.catalina.valves.ErrorReportValve.invoke > (ErrorReportValve.java:118) > at org.apache.catalina.core.StandardValveContext.invokeNext > (StandardValveContext.java:102) > at org.apache.catalina.core.StandardPipeline.invoke > (StandardPipeline.java:520) > at org.apache.catalina.core.StandardEngineValve.invoke > (StandardEngineValve.java:109) > at org.apache.catalina.core.StandardValveContext.invokeNext > (StandardValveContext.java:104) > at org.apache.catalina.core.StandardPipeline.invoke > (StandardPipeline.java:520) > at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java: > 929) > at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java: > 160) > at org.apache.coyote.http11.Http11Processor.process > (Http11Processor.java:799) > at org.apache.coyote.http11.Http11Protocol > $Http11ConnectionHandler.processConnection(Http11Protocol.java:705) > at org.apache.tomcat.util.net.TcpWorkerThread.runIt > (PoolTcpEndpoint.java:577) > at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run > (ThreadPool.java:683) > at java.lang.Thread.run(Unknown Source) > > > I have no idea what is wrong with my method here. Can anyone please > help me? > > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~----------~----~----~----~------~----~------~--~---
