Hey Keith, I am seeing a couple of things off here.
1. after I start Tomcat, I do not see "client" folder under the war directory "<WAR>/WEB-INF/classes/com/foo/". I just see the "server" folder there. Do you know how to get the client there? I have added FooShared as a Java EE module dependency of FooServer. The -war argument in the GWT launch config is set to <eclipse workspace>/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/ wtpwebapps/FooServer. 2. Another thing I noticed is that the WEB-INF folder within FooServer does not have any 'classes' folder within it. All it has is (i) lib folder (ii) web.xml As I said, I have added FooShared as a Java EE module dependency of FooServer. Should we create a build.xml for FooServer (or some other procedure) to copy all the client and shared classes manually into WebContent/WEB-INF of FooServer? Thanks, Aishwarya On Apr 2, 2:39 pm, Keith Platfoot <kplatf...@google.com> wrote: > Hi aish, > > After you start Tomcat, see if the runtime WAR directory (the one specified > with -war argument in your GWT launch configuration) has the > GreetingService.class file under <WAR>/WEB-INF/classes/com/foo/client. If > it's not there, that would explain the ClassNotFoundException. Then the > only question is how to get it there. > > Your configuration as you described it sounds correct. GreetingService > should be copied into FooServer's WEB-INF/classes by means of it being > declared an Java EE module dependency. FooServer also needs gwt-servlet.jar > as a module dependency, but if you were missing that you would get a > different error. > > If you can't make any headway getting things to work, I could probably zip > up my sample projects and you could try importing those. Just let me know. > > Keith > > On Wed, Mar 31, 2010 at 2:55 PM, aish sundar <sunda...@gmail.com> wrote: > > Thanks Keith. The steps seemed a lot clearer now and I followed it to > > set uo my workspace exactly as yours. Now when I start the Tomcat > > server, launch the client in DEV mode and go to > >http://localhost:8080/TestWeb, > > everything loads up fine and I get to the client HTML page alright. > > However when I click a button, which is tied to an Asynchronous RPC > > call, I get the following exception : > > > SEVERE: Allocate exception for servlet greetServlet > > java.lang.ClassNotFoundException: com.foo.client.GreetingService > > 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.ClassLoader.defineClass1(Native Method) > > at java.lang.ClassLoader.defineClass(Unknown Source) > > at java.security.SecureClassLoader.defineClass(Unknown Source) > > at java.net.URLClassLoader.defineClass(Unknown Source) > > at java.net.URLClassLoader.access$000(Unknown Source) > > 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 > > > org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java: > > 1275) > > at > > > org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java: > > 1206) > > at > > org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java: > > 1083) > > at > > org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java: > > 806) > > at > > > org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java: > > 129) > > at > > > org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java: > > 175) > > at > > org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java: > > 128) > > at > > org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java: > > 102) > > at > > > org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java: > > 109) > > at > > org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java: > > 286) > > at > > org.apache.coyote.http11.Http11Processor.process(Http11Processor.java: > > 844) > > at org.apache.coyote.http11.Http11Protocol > > $Http11ConnectionHandler.process(Http11Protocol.java:583) > > at > > org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java: > > 447) > > at java.lang.Thread.run(Unknown Source) > > > The synchronous version of the GreetingService is in com.foo.client > > package within the FooShared project(just as you have mentioned). I > > have also added FooShared as a proj dependancy of FooClient and a > > module dependency of FooServer. > > > NOTE: I did not do Step 15 in your instructions i.e., haven't really > > created a WAR file for deployment yet. Its all running locally. > > > The error message is not very helpful as well, in terms of when and > > where was the exception thrown. any idea what could have caused it. > > > Thanks, > > aish > > > On Mar 30, 1:51 pm, Keith Platfoot <kplatf...@google.com> wrote: > > > Hi aish, > > > > 1) Yes, FooServer would be your existing Dynamic Web project (TestWeb). > > > This project should include anything in the .server package of your GWT > > app > > > (e.g. GreetingServerImpl) as well as any existing server-side code. > > > > Your WAR directory (you'll have just one) will be the WebContent > > directory > > > of TestWeb. Dynamic Web projects are configured to use the configuration > > > and resource files (web.xml, HTML, CSS, JS, etc.) from this directory to > > > build your WAR when debugging locally or creating a .war file for > > > deployment. BTW, the default name is "WebContent", but this can be > > > customized during the New Dynamic Web project wizard. > > > > Your GWT code (in TestUI) will need to integrate into TestWeb's WAR > > > directory when you run/debug locally and when you build a .war file. For > > > running locally, you just need to tell GWT DevMode to run within the > > context > > > of TestWeb's staging WAR directory (see steps 11 and 12 in my checklist). > > > You don't need to copy any files manually, because GWT will pick up all > > the > > > .java and .gwt.xml source files it needs directly from the launch > > classpath. > > > So there really is no explicit link to TestWeb from TestUI. The only > > link > > > from TestWeb back to TestUI is that your HTML host page in TestWeb's > > > WebContent directory will need to reference your GWT module's bootstrap > > > script (the TestUI.nocache.js file, which GWT will automatically insert > > into > > > your staging WAR directory when you launch dev mode). > > > > Creating a .war for deployment, on the other hand, does require moving > > > compiled GWT output into TestWeb's WebContent directory. Select the > > TestUI > > > project and click the GWT Compile button on the toolbar. Expand the > > > Advanced section at the bottom and put "-war > > > /absolute/path/to/TestWeb/WebContent". When you click Compile, the > > > artifacts will be written to that location. Because of a minor bug (to > > be > > > fixed in GPE 1.4), though, you'll need to refresh your TestWeb project to > > > see the compiled output under WebContent. Now, you can go through the > > WAR > > > export wizard (File > Export > Web > WAR file) to create a deployment > > .war > > > file for TestWeb. > > > > 2) TestUI should contain all your GWT module files. It should also > > contain > > > all GWT code, except for code that is shared between the client and > > server > > > (in my setup, I placed these classes in FooShared). > > > > 3) Attached is a screenshot of my workspace, showing all 3 projects > > > described in my checklist. > > > > Hopefully this gets you up and running. Let me know if you have any > > other > > > questions! > > > > Keith > > > > On Mon, Mar 29, 2010 at 4:49 PM, aish sundar <sunda...@gmail.com> wrote: > > > > Hi Keith, > > > > > Thanks a lot for the detailed steps. We are in the process of > > > > integrating the projects. However we have some doubts in the process. > > > > > 1) FooServer -(i) I am assuming this can be the pre-existing Dynamic > > > > Web project, which we want to integrate with the GWT project. So from > > > > my example, this will be TestWeb, right? > > > > (ii) You wrote "FooServer will contain your server- > > > > side code and WAR directory + static resources (HTML, CSS, etc.), " . > > > > (a) Does "server-side code" mean > > > > the code within the server package of my GWT project i.e., > > > > GreetingServiceImpl.java? I am assuming FooServer will also have the > > > > code associated with my pre-existing web project as well. > > > > (b) How and from where do I get > > > > the "WAR directory"? Is this the WAR folder generated in my GWT > > > > project? Should I just simply copy the WAR folder from the GWT project > > > > over to my FooServer or is there any other way to generate it? > > > > > 2) Which project should the "TestUI.gwt.xml" file, the one that > > > > defines the modules and entry point go? > > > > > 3) It will be great if you can include a SCREENSHOT of your expanded > > > > WORKSPACE so that we can clearly see the layout of the various > > > > projects and which component goes where. > > > > > Here's an overview of what we have done following your instructions. > > > > let us know if anything looks wrong. > > > > > I initially had 2 projects FooServer (web project) and a TestUI (GWT > > > > project). > > > > > (1) FooServer (Dynamic Web project, which contains the server side > > > > code of the GWT proj) > > > > > src > > > > >> TestUI.gwt.xml ( don't know if this should go here) > > > > >> com.server (newly added GWT server code) > > > > >>>GreetingServiceImpl > > > > > > war (copied from TestUI) > > > > >> testui (which has the generated js etc) > > > > >> WEB-INF > > > > >>> classes > > > > >>> lib > > > > >>>web.xml > > > > >> TestUI.css > > > > >> TestUI.html > > > > > > WebContent > > > > >> appPages > > > > >> META-INF > > > > >> WEB-INF > > > > >>>lib > > > > >>> web.xml > > > > > > TestUI.html and TestUI.css (static HTML pages and CSS) > > > > > (2) FooClient (to contain the client side code of the GWT proj) > > > > > > src > > > > >> com.client > > > > >>>TestUI.java > > ... > > read more » -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. 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