Google Web Toolkit (GWT) MVP Example (5) -

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Google Web Toolkit (GWT) MVP Example (5)

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技术

Google Web GWT Flash Servlet

LogProvider.java

package co.uk.hivedevelopment.greet.server.guice;

import org.apache.commons.logging.Log;

import org.apache.commons.logging.impl.Log4JLogger;

import com.google.inject.Provider;

import com.google.inject.Singleton;

@Singleton

public class LogProvider implements Provider<Log>{

 public Log get() {

  return new Log4JLogger("GreetingLogger");

 }

}

MyGuiceServletConfig.java

package co.uk.hivedevelopment.greet.server.guice;

import com.google.inject.Guice;

import com.google.inject.Injector;

import com.google.inject.servlet.GuiceServletContextListener;

public class MyGuiceServletConfig extends GuiceServletContextListener {

 @Override

 protected Injector getInjector() {

  return Guice.createInjector(new ServerModule(), new DispatchServletModule());

 }

}

ServerModule.java

package co.uk.hivedevelopment.greet.server.guice;

import net.customware.gwt.dispatch.server.guice.ActionHandlerModule;

import org.apache.commons.logging.Log;

import co.uk.hivedevelopment.greet.server.handler.SendGreetingHandler;

import com.google.inject.Singleton;

/**

 * Module which binds the handlers and configurations

 *

 */

public class ServerModule extends ActionHandlerModule {

 @Override

 protected void configureHandlers() {

  bindHandler(SendGreetingHandler.class);

   

  bind(Log.class).toProvider(LogProvider.class).in(Singleton.class);

 }

}

Finally we need to reconfigure the web.xml with the following:

web.xml

<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE web-app

    PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"

    "http://java.sun.com/dtd/web-app_2_3.dtd">

<web-app>

 <!-- Remote logging agent for gwt-log -->

 <servlet>

  <servlet-name>remoteLoggerServiceImpl</servlet-name>

  <servlet-class>com.allen_sauer.gwt.log.server.RemoteLoggerServiceImpl</servlet-class>

 </servlet>

 <servlet-mapping>

  <servlet-name>remoteLoggerServiceImpl</servlet-name>

  <url-pattern>/greetmvp/gwt-log</url-pattern>

 </servlet-mapping>

 <filter>

  <filter-name>guiceFilter</filter-name>

  <filter-class>com.google.inject.servlet.GuiceFilter</filter-class>

 </filter>

 <filter-mapping>

  <filter-name>guiceFilter</filter-name>

  <url-pattern>/*</url-pattern>

 </filter-mapping>

 <listener>

  <listener-class>co.uk.hivedevelopment.greet.server.guice.MyGuiceServletConfig</listener-class>

 </listener>

 <!-- Default page to serve -->

 <welcome-file-list>

  <welcome-file>GreetMvp.html</welcome-file>

 </welcome-file-list>

</web-app>

You may now launch the application. Surprise surprise, it looks no different but you're now following best practises. Good luck with your own GWT MVP development.

gwt default application screenshot (after)

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Session ID and Cookie | Google Web Toolkit (GWT) MVP Example (4)

2009-11-24 18:13
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