Re: Connecting to a oracle database with GWT
Eclipse plugin is a real good friend to figure out RPC. Just create new project choosing both app engine and gwt, creates a nice working sample RPC , hello world. Add few more methods for practice, then add few more servlets and call from client. On Jul 21, 3:03 am, Ryan McFall wrote: > It looks like you're trying to access the JDBC code from within the > client. This doesn't work with GWT. > > To do this, you need to use an RPC method between the client and the > server, and communicate with Oracle on the server side. You can use > GWT-RPC or RequestFactory to handle the RPC calls. > > Ryan > > On Jul 20, 2:02 pm, Bruno Henrique wrote: > > > > > > > > > Can someone give an simple example how to use oracle with GWT, using RPC? > > I tried to do something here, but I got the error: > > > java.lang.NoClassDefFoundError: java.net.Socket 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 oracle.net.nt.TcpNTAdapter.connect(Unknown Source) > > > at oracle.net.nt.ConnOption.connect(Unknown Source) > > > at oracle.net.nt.ConnStrategy.execute(Unknown Source) > > > at oracle.net.resolver.AddrResolution.resolveAndExecute(Unknown Source) > > > at oracle.net.ns.NSProtocol.establishConnection(Unknown Source) > > > at oracle.net.ns.NSProtocol.connect(Unknown Source) > > > at oracle.jdbc.ttc7.TTC7Protocol.connect( > > > *TTC7Protocol.java:1774*) > > > at oracle.jdbc.ttc7.TTC7Protocol.logon( > > > *TTC7Protocol.java:215*) > > > at oracle.jdbc.driver.OracleConnection.( > > > *OracleConnection.java:362*) > > > at oracle.jdbc.driver.OracleDriver.getConnectionInstance( > > > *OracleDriver.java:536*) > > > at oracle.jdbc.driver.OracleDriver.connect( > > > *OracleDriver.java:328*) > > > at java.sql.DriverManager.getConnection(Unknown Source) > > > at java.sql.DriverManager.getConnection(Unknown Source) > > > at > > com.carriers.chartapplication.server.indicador.banco.IndicadorBanco.buscarI > > ndicadorBanco( > > > *IndicadorBanco.java:75*) > > > at > > com.carriers.chartapplication.server.indicador.negocio.IndicadorNegocio. > it>( > > > *IndicadorNegocio.java:44*) > > > at com.carriers.chartapplication.server.GreetingServiceImpl.( > > > *GreetingServiceImpl.java:16*) > > > at sun.reflect.NativeConstructorAccessorImpl.newInstance0( > > > *Native Method*) > > > at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source) > > > at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source) > > > at java.lang.reflect.Constructor.newInstance(Unknown Source) > > > at java.lang.Class.newInstance0(Unknown Source) > > > at java.lang.Class.newInstance(Unknown Source) > > > at org.mortbay.jetty.servlet.Holder.newInstance( > > > *Holder.java:153*) > > > at org.mortbay.jetty.servlet.ServletHolder.initServlet( > > > *ServletHolder.java:428*) > > > at org.mortbay.jetty.servlet.ServletHolder.getServlet( > > > *ServletHolder.java:339*) > > > at org.mortbay.jetty.servlet.ServletHolder.handle( > > > *ServletHolder.java:487*) > > > at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter( > > > *ServletHandler.java:1166*) > > > at com.google.appengine.tools.development.HeaderVerificationFilter.doFilter( > > > *HeaderVerificationFilter.java:35*) > > > at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter( > > > *ServletHandler.java:1157*) > > > 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$CachedChain.doFilter( > > > *ServletHandler.java:1157*) > > > at com.google.appengine.tools.development.BackendServersFilter.doFilter( > > > *BackendServersFilter.java:97*) > > > at org.mortbay.jetty.servlet.ServletHandler$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
Re: Connecting to a oracle database with GWT
It looks like you're trying to access the JDBC code from within the client. This doesn't work with GWT. To do this, you need to use an RPC method between the client and the server, and communicate with Oracle on the server side. You can use GWT-RPC or RequestFactory to handle the RPC calls. Ryan On Jul 20, 2:02 pm, Bruno Henrique wrote: > Can someone give an simple example how to use oracle with GWT, using RPC? > I tried to do something here, but I got the error: > > java.lang.NoClassDefFoundError: java.net.Socket 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 oracle.net.nt.TcpNTAdapter.connect(Unknown Source) > > at oracle.net.nt.ConnOption.connect(Unknown Source) > > at oracle.net.nt.ConnStrategy.execute(Unknown Source) > > at oracle.net.resolver.AddrResolution.resolveAndExecute(Unknown Source) > > at oracle.net.ns.NSProtocol.establishConnection(Unknown Source) > > at oracle.net.ns.NSProtocol.connect(Unknown Source) > > at oracle.jdbc.ttc7.TTC7Protocol.connect( > > *TTC7Protocol.java:1774*) > > at oracle.jdbc.ttc7.TTC7Protocol.logon( > > *TTC7Protocol.java:215*) > > at oracle.jdbc.driver.OracleConnection.( > > *OracleConnection.java:362*) > > at oracle.jdbc.driver.OracleDriver.getConnectionInstance( > > *OracleDriver.java:536*) > > at oracle.jdbc.driver.OracleDriver.connect( > > *OracleDriver.java:328*) > > at java.sql.DriverManager.getConnection(Unknown Source) > > at java.sql.DriverManager.getConnection(Unknown Source) > > at > com.carriers.chartapplication.server.indicador.banco.IndicadorBanco.buscarIndicadorBanco( > > *IndicadorBanco.java:75*) > > at > com.carriers.chartapplication.server.indicador.negocio.IndicadorNegocio.( > > *IndicadorNegocio.java:44*) > > at com.carriers.chartapplication.server.GreetingServiceImpl.( > > *GreetingServiceImpl.java:16*) > > at sun.reflect.NativeConstructorAccessorImpl.newInstance0( > > *Native Method*) > > at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source) > > at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source) > > at java.lang.reflect.Constructor.newInstance(Unknown Source) > > at java.lang.Class.newInstance0(Unknown Source) > > at java.lang.Class.newInstance(Unknown Source) > > at org.mortbay.jetty.servlet.Holder.newInstance( > > *Holder.java:153*) > > at org.mortbay.jetty.servlet.ServletHolder.initServlet( > > *ServletHolder.java:428*) > > at org.mortbay.jetty.servlet.ServletHolder.getServlet( > > *ServletHolder.java:339*) > > at org.mortbay.jetty.servlet.ServletHolder.handle( > > *ServletHolder.java:487*) > > at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter( > > *ServletHandler.java:1166*) > > at com.google.appengine.tools.development.HeaderVerificationFilter.doFilter( > > *HeaderVerificationFilter.java:35*) > > at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter( > > *ServletHandler.java:1157*) > > 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$CachedChain.doFilter( > > *ServletHandler.java:1157*) > > at com.google.appengine.tools.development.BackendServersFilter.doFilter( > > *BackendServersFilter.java:97*) > > at org.mortbay.jetty.servlet.ServletHandler$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
Re: Connecting to a oracle database with GWT
Can someone give an simple example how to use oracle with GWT, using RPC? I tried to do something here, but I got the error: java.lang.NoClassDefFoundError: java.net.Socket 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 oracle.net.nt.TcpNTAdapter.connect(Unknown Source) at oracle.net.nt.ConnOption.connect(Unknown Source) at oracle.net.nt.ConnStrategy.execute(Unknown Source) at oracle.net.resolver.AddrResolution.resolveAndExecute(Unknown Source) at oracle.net.ns.NSProtocol.establishConnection(Unknown Source) at oracle.net.ns.NSProtocol.connect(Unknown Source) at oracle.jdbc.ttc7.TTC7Protocol.connect( *TTC7Protocol.java:1774*) at oracle.jdbc.ttc7.TTC7Protocol.logon( *TTC7Protocol.java:215*) at oracle.jdbc.driver.OracleConnection.( *OracleConnection.java:362*) at oracle.jdbc.driver.OracleDriver.getConnectionInstance( *OracleDriver.java:536*) at oracle.jdbc.driver.OracleDriver.connect( *OracleDriver.java:328*) at java.sql.DriverManager.getConnection(Unknown Source) at java.sql.DriverManager.getConnection(Unknown Source) at com.carriers.chartapplication.server.indicador.banco.IndicadorBanco.buscarIndicadorBanco( *IndicadorBanco.java:75*) at com.carriers.chartapplication.server.indicador.negocio.IndicadorNegocio.( *IndicadorNegocio.java:44*) at com.carriers.chartapplication.server.GreetingServiceImpl.( *GreetingServiceImpl.java:16*) at sun.reflect.NativeConstructorAccessorImpl.newInstance0( *Native Method*) at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source) at java.lang.reflect.Constructor.newInstance(Unknown Source) at java.lang.Class.newInstance0(Unknown Source) at java.lang.Class.newInstance(Unknown Source) at org.mortbay.jetty.servlet.Holder.newInstance( *Holder.java:153*) at org.mortbay.jetty.servlet.ServletHolder.initServlet( *ServletHolder.java:428*) at org.mortbay.jetty.servlet.ServletHolder.getServlet( *ServletHolder.java:339*) at org.mortbay.jetty.servlet.ServletHolder.handle( *ServletHolder.java:487*) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter( *ServletHandler.java:1166*) at com.google.appengine.tools.development.HeaderVerificationFilter.doFilter( *HeaderVerificationFilter.java:35*) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter( *ServletHandler.java:1157*) 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$CachedChain.doFilter( *ServletHandler.java:1157*) at com.google.appengine.tools.development.BackendServersFilter.doFilter( *BackendServersFilter.java:97*) at org.mortbay.jetty.servlet.ServletHandler$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:212*) 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*) 2011/7/20 Jeff Larsen > with GWT you have client and server code. The question you're asking is > similar to asking where to put the oracle library when using JQuery. GWT > compiles to javascript and while it has some server side plumbing, that is > there
Re: Connecting to a oracle database with GWT
with GWT you have client and server code. The question you're asking is similar to asking where to put the oracle library when using JQuery. GWT compiles to javascript and while it has some server side plumbing, that is there just to facilitate client/server communication. The answer is you put the oracle jar inside your server and only reference it from your server side classes. -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To view this discussion on the web visit https://groups.google.com/d/msg/google-web-toolkit/-/aDrqg9PQ6OEJ. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: Connecting to a oracle database with GWT
I have no problems with jdbc...I've already worked with this in desktop and web applications (jsp, jsf)...my problem is using it with GWT...I don't know how to do it...where I have to add the oracle library... 2011/7/20 Kevin Anderson > > http://www.java-forums.org/java-tips/6116-using-jdbc-connect-oracle-database.html > > This is more of a java question then a GWT question. But the above gives > you an example of how to do it. Though I personally prefer using something > like spring to handle the oracle connection and then in my services just > inject the connection. > > -- > You received this message because you are subscribed to the Google Groups > "Google Web Toolkit" group. > To view this discussion on the web visit > https://groups.google.com/d/msg/google-web-toolkit/-/8k6xhdQKwY0J. > To post to this group, send email to google-web-toolkit@googlegroups.com. > To unsubscribe from this group, send email to > google-web-toolkit+unsubscr...@googlegroups.com. > 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. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: Connecting to a oracle database with GWT
There's ODK4Spring connector. Download it and you are up to speed. On 7/20/11, Kevin Anderson wrote: > http://www.java-forums.org/java-tips/6116-using-jdbc-connect-oracle-database.html > > This is more of a java question then a GWT question. But the above gives you > an example of how to do it. Though I personally prefer using something like > spring to handle the oracle connection and then in my services just inject > the connection. > > -- > You received this message because you are subscribed to the Google Groups > "Google Web Toolkit" group. > To view this discussion on the web visit > https://groups.google.com/d/msg/google-web-toolkit/-/8k6xhdQKwY0J. > To post to this group, send email to google-web-toolkit@googlegroups.com. > To unsubscribe from this group, send email to > google-web-toolkit+unsubscr...@googlegroups.com. > For more options, visit this group at > http://groups.google.com/group/google-web-toolkit?hl=en. > > -- Odeyemi 'Kayode O. http://www.sinati.com. t: @charyorde -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: Connecting to a oracle database with GWT
http://www.java-forums.org/java-tips/6116-using-jdbc-connect-oracle-database.html This is more of a java question then a GWT question. But the above gives you an example of how to do it. Though I personally prefer using something like spring to handle the oracle connection and then in my services just inject the connection. -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To view this discussion on the web visit https://groups.google.com/d/msg/google-web-toolkit/-/8k6xhdQKwY0J. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Connecting to a oracle database with GWT
Hi people, Can someone give an example how to configure and call a oracle db connection using GWT. I know that it must be done in the server side and I can get the data in client side using RPC. But I don't know where to add the oracle library and make the calls. Tks!!! -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
