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Gwt RPC not working

what is wrong in my code.

Public MyServiceAsync my=GWT.create(MyService.class); HTML serverResponseLabel = new HTML(); public void onModuleLoad() { final Label errorLabel = new Label(); RootPanel rootPanel = RootPanel.get(); rootPanel.setSize("100%", "100%"); rootPanel.add(errorLabel); serverResponseLabel=new HTML(); rootPanel.add(serverResponseLabel); Button btnSearch = new Button("Search"); rootPanel.add(btnSearch, 558, 110); btnSearch.setSize("63px", "29px"); btnSearch.addClickHandler(this); } @Override public void onClick(ClickEvent event) { // TODO Auto-generated method stub System.out.println("clicked"); my.myMethod("ka",new AsyncCallback<String>() { public void onFailure(Throwable caught) { serverResponseLabel.setHTML(SERVER_ERROR); } public void onSuccess(String result) { serverResponseLabel.setHTML(result); } }); } Sync public interface MyService extends RemoteService { public String myMethod(String s); } Async public interface MyServiceAsync { public void myMethod(String s, AsyncCallback<String> callback); } synImple public class MyServiceImpl extends RemoteServiceServlet implements MyService { public String myMethod(String s) { return s+"example"; } }

I get an excluded excluded excluded error .....

 com.google.gwt.event.shared.UmbrellaException: One or more exceptions caught, see full set in UmbrellaException#getCauses at com.google.gwt.event.shared.SimpleEventBus.doFire(SimpleEventBus.java:214) at com.google.gwt.event.shared.SimpleEventBus.fireEvent(SimpleEventBus.java:103) at com.google.gwt.event.shared.HandlerManager.fireEvent(HandlerManager.java:96) at com.google.gwt.user.client.ui.Widget.fireEvent(Widget.java:107) at com.google.gwt.event.dom.client.DomEvent.fireNativeEvent(DomEvent.java:116) at com.google.gwt.user.client.ui.Widget.onBrowserEvent(Widget.java:155) at com.google.gwt.user.client.DOM.dispatchEventImpl(DOM.java:1308) at com.google.gwt.user.client.DOM.dispatchEvent(DOM.java:1264) 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.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java:103) at com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java:71) at com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java:157) at com.google.gwt.dev.shell.BrowserChannelServer.reactToMessagesWhileWaitingForReturn(BrowserChannelServer.java:326) at com.google.gwt.dev.shell.BrowserChannelServer.invokeJavascript(BrowserChannelServer.java:207) at com.google.gwt.dev.shell.ModuleSpaceOOPHM.doInvoke(ModuleSpaceOOPHM.java:126) at com.google.gwt.dev.shell.ModuleSpace.invokeNative(ModuleSpace.java:561) at com.google.gwt.dev.shell.ModuleSpace.invokeNativeObject(ModuleSpace.java:269) at com.google.gwt.dev.shell.JavaScriptHost.invokeNativeObject(JavaScriptHost.java:91) at com.google.gwt.core.client.impl.Impl.apply(Impl.java) at com.google.gwt.core.client.impl.Impl.entry0(Impl.java:214) at sun.reflect.GeneratedMethodAccessor15.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java:103) at com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java:71) at com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java:157) at com.google.gwt.dev.shell.BrowserChannelServer.reactToMessages(BrowserChannelServer.java:281) at com.google.gwt.dev.shell.BrowserChannelServer.processConnection(BrowserChannelServer.java:531) at com.google.gwt.dev.shell.BrowserChannelServer.run(BrowserChannelServer.java:352) at java.lang.Thread.run(Unknown Source) Caused by: com.google.gwt.user.client.rpc.ServiceDefTarget$NoServiceEntryPointSpecifiedException: Service implementation URL not specified at com.google.gwt.user.client.rpc.impl.RemoteServiceProxy.doPrepareRequestBuilderImpl(RemoteServiceProxy.java:326) at com.google.gwt.user.client.rpc.impl.RemoteServiceProxy.doInvoke(RemoteServiceProxy.java:265) at com.test.test.client.MyService_Proxy.myMethod(MyService_Proxy.java:37) at com.test.test.client.Test.onClick(Test.java:70) at com.google.gwt.event.dom.client.ClickEvent.dispatch(ClickEvent.java:54) at com.google.gwt.event.dom.client.ClickEvent.dispatch(ClickEvent.java:1) at com.google.gwt.event.shared.SimpleEventBus.doFire(SimpleEventBus.java:204) at com.google.gwt.event.shared.SimpleEventBus.fireEvent(SimpleEventBus.java:103) at com.google.gwt.event.shared.HandlerManager.fireEvent(HandlerManager.java:96) at com.google.gwt.user.client.ui.Widget.fireEvent(Widget.java:107) at com.google.gwt.event.dom.client.DomEvent.fireNativeEvent(DomEvent.java:116) at com.google.gwt.user.client.ui.Widget.onBrowserEvent(Widget.java:155) at com.google.gwt.user.client.DOM.dispatchEventImpl(DOM.java:1308) at com.google.gwt.user.client.DOM.dispatchEvent(DOM.java:1264) 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.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java:103) at com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java:71) at com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java:157) at com.google.gwt.dev.shell.BrowserChannelServer.reactToMessagesWhileWaitingForReturn(BrowserChannelServer.java:326) at com.google.gwt.dev.shell.BrowserChannelServer.invokeJavascript(BrowserChannelServer.java:207) at com.google.gwt.dev.shell.ModuleSpaceOOPHM.doInvoke(ModuleSpaceOOPHM.java:126) at com.google.gwt.dev.shell.ModuleSpace.invokeNative(ModuleSpace.java:561) at com.google.gwt.dev.shell.ModuleSpace.invokeNativeObject(ModuleSpace.java:269) at com.google.gwt.dev.shell.JavaScriptHost.invokeNativeObject(JavaScriptHost.java:91) at com.google.gwt.core.client.impl.Impl.apply(Impl.java) at com.google.gwt.core.client.impl.Impl.entry0(Impl.java:214) at sun.reflect.GeneratedMethodAccessor15.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java:103) at com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java:71) at com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java:157) at com.google.gwt.dev.shell.BrowserChannelServer.reactToMessages(BrowserChannelServer.java:281) at com.google.gwt.dev.shell.BrowserChannelServer.processConnection(BrowserChannelServer.java:531) at com.google.gwt.dev.shell.BrowserChannelServer.run(BrowserChannelServer.java:352) at java.lang.Thread.run(Unknown Source)
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1 answer

You need to add @RemoteServiceRelativePath("some.path") to your interface.

See this tutorial .

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Source: https://habr.com/ru/post/1337659/

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