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Introduction

Spring GWT-RPC is insprired by the gwtrpc-spring project. Its aim is to provide a simplified and updated version of the latter.

Get it

Spring GWT-RPC is released on Maven Central:

<dependency>
    <groupId>fr.sertelon.spring</groupId>
    <artifactId>spring-gwtrpc</artifactId>
    <version>1.0.0</version>
</dependency>

Features

Dispatch to Spring beans

Spring GWT-RPC provides a simple Servlet that extends RemoteServiceServlet to dispatch RPC requests to the required Spring beans.

To use it you just have to declare this Servlet in the web.xml of your project:

<servlet>
	<servlet-name>GWTService</servlet-name>
	<servlet-class>fr.sertelon.spring.gwtrpc.SpringRemoteServiceServlet</servlet-class>
</servlet>
<servlet-mapping>
	<servlet-name>GWTService</servlet-name>
	<url-pattern>*.rpc</url-pattern><!-- use the mapping that suits you most -->
</servlet-mapping>

Then all you have to do is to declare your RemoteServiceImpl in your Spring configuration thanks to @Component annotation, or via XML configuration.

Reverse Proxy support for Serialization Policy

Spring GWT-RPC also provides out-of-the-box Reverse Proxy support for helping GWT find its Serialization Policy.

Suppose you have the following RP configuration: http://my.site/hello/gwtapp -> http://localhost:8080/gwtapp, GWT will complain about missing Serialization Policy because it will try to find it at /hello/gwtapp/*.gwt.rpc instead of /gwtapp/*.gwt.rpc.

To solve this, Spring GWT-RPC uses the custom X-GWT-Path-Prefix header to strip the given prefix and help GWT find the Serialization Policy where it actually is.

Here's a simple apache example:

<Virtualhost *:80>
  ServerName my.site

  <Proxy *>
    Order deny,allow
    Allow from all
  </Proxy>

  RequestHeader set X-GWT-Path-Prefix /hello

  ProxyPass           /hello/gwtapp/ http://localhost:8080/gwtapp/
  ProxyPassReverse    /hello/gwtapp/ http://localhost:8080/gwtapp/
</Virtualhost>

License

This project is licensed under the Apache Software License v2.0