GWT spring integration

[razi alqasem]

Dear Ranches,

am trying to integrate gwt with springframwork i search the internet and i found the following link

http://technophiliac.wordpress.com/2008/08/24/giving-gwt-a-spring-in-its-step/

it work great with me until i tried to run the application in the host mode so i can debug my entire tiers (server and client side) but unfortunately the GWT shell do not give me the ability to play with web.xml so i cant configure my spring context using the DispatcherServlet..

so do anyone have any idea on how to integrate spring with GWT or how can i update the generated web.xml in the host mode so the spring context will load ??

thanks,

[Jossey Jacob]

Hi Razi,
I am also new to GWT.
But i think the web.xml is not generated every time we compile.
I was using GWT 1.5.

I had modified the generated web.xml and it worked.
But I am not sure, if some specific change would cause it to be re-generted.
The generated web.xml only contains a single servlet definition/mapping.
So there is no need to generate it every time. I guess.


Let me know whether you have already solved it.
And are you using the solution form that link to integrate with spring.

Thanks.
Jossey.

[Cristian Popescu]

Hi,

I'm new to GWT and I was trying to get a simple app that will use GWT+Spring+Maven. I was able to find a suitable example on the internet for GWT+Spring+Maven, that also work. THe issue is that when I'm trying to define new beans and inject them in the exsiting GWT ones, the DI doesn't work as expected. I am getting no errors though, just null values.

The example was taken from http://technophiliac.wordpress.com/2008/08/24/giving-gwt-a-spring-in-its-step/. I had to tweak it a little bit to work properly. To that app I was trying to add a BO layer and a DAO layer.

Any suggestions how could I register&inject those beans (myObjectDAO and myObjectBO) into "quoteService"? "quoteService" bean is registered and injected properly in "quoteController". I do have the setters properly in place for the properties in the bean class, otherwise spring would complained.
Thank you.

service-context.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">
<beans>
   <bean id="quoteService" class="com.totsp.sample.client.QuoteServiceImpl">
        <property name="myObjBO">
            <ref bean="myObjectBO" /> 
        </property>
    </bean>
	<bean id="salesproServicePlaceholder" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
        <property name="ignoreUnresolvablePlaceholders" value="true"/>
        <property name="location">
            <value>classpath:service-placeholder.properties</value>
        </property>
    </bean>
    
   	<bean id="myObjectDAO" class="com.totsp.sample.dao.MyObjectDAOImpl"> 
   		<!--       
   		<property name="sqlMapClient">
   			<ref bean="sqlMapClient" />    
 		</property>
 		-->
   	</bean>
   	
   	<bean id="myObjectBO" class="com.totsp.sample.bo.MyObjectBOImpl">
        <property name="myObjectDAO">
   			<ref bean="myObjectDAO" />    
 		</property>
    </bean>    
</beans>

spring-servlet.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans-2.5.xsd">

    <!-- The application context definition for the DispatcherServlet -->

    <!-- Maps the request through to a concrete controller instance -->
    <bean id="urlMapping" class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
        <property name="mappings">
            <value>
            /**/quote.rpc=quoteController
            </value>
        </property>
    </bean>

    <!-- GwtRpcController wraps our service in order to decode the incoming -->
    <!-- request then delegates processing of the call to the POJO service -->
    <!-- and then encodes the return value forwarding the response. -->
    <bean id="quoteController" class="com.totsp.sample.client.GwtRpcController">
        <property name="remoteService">
            <ref bean="quoteService" /> 
        </property>
    </bean>
</beans>

web.xml

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

<web-app version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee 
	http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
	<display-name>Sample</display-name>

	<welcome-file-list>
		<welcome-file>index.html</welcome-file>
	</welcome-file-list>

	<context-param>
		<param-name>contextConfigLocation</param-name>
		<param-value>
			classpath:service-context.xml,
			classpath:spring-servlet.xml
		</param-value>
	</context-param>

	<listener>
		<listener-class>
			org.springframework.web.context.ContextLoaderListener
		</listener-class>
	</listener>
	<!-- 
	<listener>
		<listener-class>
			org.springframework.web.context.request.RequestContextListener
		</listener-class>
	</listener>
 -->
	<servlet>
		<servlet-name>spring</servlet-name>
		<servlet-class>
			org.springframework.web.servlet.DispatcherServlet
		</servlet-class>
		<load-on-startup>1</load-on-startup>
	</servlet>

    <servlet-mapping>
        <servlet-name>spring</servlet-name>
        <url-pattern>*.rpc</url-pattern>
    </servlet-mapping>
	
</web-app>