Put postgresql driver in WEB-INF/lib Juan
2011/4/5 Jose Luis Hernandez <[email protected]> > Hello! > I am trying to connect my gwt server with postgreSQL database, but I > do not get it. It appears the following error message: > > [ERROR] javax.servlet.ServletContext log: Exception while dispatching > incoming RPC call > com.google.gwt.user.server.rpc.UnexpectedException: Service method > 'public abstract boolean > > com.gwt.app.client.GreetingService.greetServer(java.lang.String,java.lang.String) > throws java.lang.Exception' threw an unexpected exception: > java.lang.NoClassDefFoundError: org.postgresql.core.Logger is a > restricted class. Please see the Google App Engine developer's guide > for more details. > at > com.google.gwt.user.server.rpc.RPC.encodeResponseForFailure(RPC.java: > 385) > at > com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java: > 588) > at > > com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java: > 208) > at > > com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java: > 248) > at > > com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java: > 62) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:637) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) > at > org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java: > 511) > at org.mortbay.jetty.servlet.ServletHandler > $CachedChain.doFilter(ServletHandler.java:1166) > at > > com.google.appengine.api.blobstore.dev.ServeBlobFilter.doFilter(ServeBlobFilter.java: > 58) > at org.mortbay.jetty.servlet.ServletHandler > $CachedChain.doFilter(ServletHandler.java:1157) > at > > com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java: > 43) > at org.mortbay.jetty.servlet.ServletHandler > $CachedChain.doFilter(ServletHandler.java:1157) > at > > com.google.appengine.tools.development.StaticFileFilter.doFilter(StaticFileFilter.java: > 122) > at org.mortbay.jetty.servlet.ServletHandler > $CachedChain.doFilter(ServletHandler.java:1157) > at > org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java: > 388) > at > org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java: > 216) > at > org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java: > 182) > at > org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java: > 765) > at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java: > 418) > at > > com.google.apphosting.utils.jetty.DevAppEngineWebAppContext.handle(DevAppEngineWebAppContext.java: > 70) > at > org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java: > 152) > at com.google.appengine.tools.development.JettyContainerService > $ApiProxyHandler.handle(JettyContainerService.java:351) > at > org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java: > 152) > at org.mortbay.jetty.Server.handle(Server.java:326) > at > org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java: > 542) > at org.mortbay.jetty.HttpConnection > $RequestHandler.content(HttpConnection.java:938) > at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:755) > at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:218) > at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404) > at > org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java: > 409) > at org.mortbay.thread.QueuedThreadPool > $PoolThread.run(QueuedThreadPool.java:582) > Caused by: java.lang.NoClassDefFoundError: org.postgresql.core.Logger > is a restricted class. Please see the Google App Engine developer's > guide for more details. > at > > com.google.appengine.tools.development.agent.runtime.Runtime.reject(Runtime.java: > 51) > at org.postgresql.Driver.<clinit>(Driver.java:55) > at java.lang.Class.forName0(Native Method) > at java.lang.Class.forName(Class.java:169) > at com.gwt.app.server.ManejadorBD.checkUser(ManejadorBD.java:10) > at > > com.gwt.app.server.GreetingServiceImpl.greetServer(GreetingServiceImpl.java: > 15) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java: > 39) > at > > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java: > 25) > at java.lang.reflect.Method.invoke(Method.java:597) > at > > com.google.appengine.tools.development.agent.runtime.Runtime.invoke(Runtime.java: > 100) > at > com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java: > 569) > ... 30 more > > I have two classes on server side, "GreetingServiceImpl" and > "ManejadorBD". The first one calls to method "checkUser" from the > second class. "ManejadorBD" is like the following code: > > public class ManejadorBD { > public boolean checkUser(String user, String pass) throws Exception{ > Class.forName("org.postgresql.Driver"); > Connection conn = > DriverManager.getConnection("jdbc:postgresql:// > localhost:5432/3encult","3encult","3encult"); > Statement instruccion = conn.createStatement(); > ResultSet tabla = instruccion.executeQuery("SELECT > user,password > FROM user"); > if(user == tabla.getString(0) && pass == tabla.getString(1)) > return > true; > else return false; > } > } > > Could someone help me?? > Thanks in advance! > Regards!!!! > > -- > 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. > > -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. 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