#副標=AJAX開發工具(8)
#大標=整合GWT與Spring
#作者=文／沈炳宏



==<box>===========
程式1
<web-app>
<display-name>GWTSpringDemo1
</display-name>

<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>
/com.runpc.GWTSpringDemo1/services/*
</url-pattern>
</servlet-mapping>

<listener>
<listener-class>
org.springframework.web.context.
ContextLoaderListener
</listener-class>
</listener>
</web-app>
==<end>==============




==<box>===========
程式2
<beans>
	<bean id="urlMapping"
	class="org.springframework.web.servlet.
handler.SimpleUrlHandlerMapping">
		<property name="urlMap">
			<map>
				<entry key="myService">
				<ref bean="ServiceController" />
				</entry>
			</map>
		</property>
	</bean>

<bean id="ServiceController"
class="com.runpc.server.ServletWrappingController">
	<property name="servletName" 
value="myService"></property>
	<property name="servletInstance">
<ref bean="myService" />
</property>
</bean>
<bean id="myService" class=
"com.runpc.server.MyServiceImpl"></bean>
</beans>
==<end>==============



==<box>===========
程式3
package com.runpc.server;
import …

public class ServletWrappingController 
extends AbstractController 
implements 
BeanNameAware, InitializingBean,DisposableBean {
	private Class servletClass;
	private String servletName;
	private Properties initParameters = 
new Properties();
	private String beanName;
	private Servlet servletInstance;

	public void setServletClass(Class servletClass) {
		this.servletClass = servletClass;
	}
	public void setServletName(String servletName) {
		this.servletName = servletName;
	}
	public void setInitParameters(
Properties initParameters) {
		this.initParameters = initParameters;
	}
	public void setBeanName(String name) {
		this.beanName = name;
	}
	public void setServletInstance(
Servlet servletInstance) {
		this.servletInstance = servletInstance;
	}
	public void afterPropertiesSet() 
throws Exception {
		if (this.servletInstance == null) {
			throw new 
IllegalArgumentException("需要servlet執行個體");
		}
		if (!Servlet.class.isAssignableFrom(
servletInstance.getClass())) {
			throw new 
IllegalArgumentException(
"servlet執行個體[" + this.servletClass.getName()
+ "] 需要實作[javax.servlet.Servlet]介面");
		}
		if (this.servletName == null) {
			this.servletName = this.beanName;
		}
		this.servletInstance.init(
new DelegatingServletConfig());
	}

	protected ModelAndView 
handleRequestInternal(HttpServletRequest request, 
HttpServletResponse response)
			throws Exception {
		this.servletInstance.service(request, response);
		return null;
	}
	public void destroy() {
		this.servletInstance.destroy();
	}
	private class DelegatingServletConfig 
implements ServletConfig {
		public String getServletName() {
			return servletName;
		}
		public ServletContext getServletContext() {
			return 
getWebApplicationContext().getServletContext();
		}
		public String getInitParameter(
String paramName) {
			return initParameters.
getProperty(paramName);
		}
		public Enumeration 
getInitParameterNames() {
			return initParameters.keys();
		}
	}
}
==<end>==============



==<box>===========
程式4
<target name="gwt-compile" 
description="編譯為JavaScript">
	    <java classname=
"com.google.gwt.dev.GWTCompiler" fork="yes"
	failonerror="true">
	      <classpath>
	        <pathelement location="src"/>
	        <pathelement location=
"/gwt-dev-windows.jar"/>
	      <path refid="project.class.path"/>
	      </classpath>
	      <arg value="-out"/>
	      <arg file="www"/>
	      <arg value="${gwt.module}"/>
	    </java>
	  </target>
==<end>==============



==<box>===========
程式5
<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>/myservice.srv</url-pattern>
    </servlet-mapping>
==<end>==============




　　
==<box>===========
程式6
<bean id="urlMapping"        
class="org.springframework.web.servlet.
handler.SimpleUrlHandlerMapping">
        <property name="mappings">
            <props>
              <prop key="/myservice.srv">
MyServiceImpl</prop>
            </props>
        </property>
    </bean>

<bean id="MyServiceImpl" class=
"com.runpc.server.MyServiceImpl"
/>
==<end>==============




==<box>===========
程式7
MyServiceAsync svc = (MyServiceAsync) 
GWT.create(MyService.class);
		ServiceDefTarget endpoint = 
(ServiceDefTarget) svc;
endpoint.setServiceEntryPoint("../../myservice.srv");
==<end>==============




==<box>===========
程式8
<beans>
 <bean id="urlMapping"   
class="org.gwtwidgets.server.spring.GWTHandler">
  <property name="mapping">
   <map>
    <entry key="/myservice.srv" value-ref="myservice"/>
   </map>
  </property>
  <property name="usingInstrumentation" value="true"/>
 </bean>
   
 <bean id=" myservice" 
class="com.runpc.server.MyServiceImpl"/>
</beans>
==<end>==============



==<box>===========
程式9
public void myServiceMethod(...){
...
HttpServlerRequest request = 
GWTSpringController.getRequest();
...
}
==<end>==============



==<box>===========
程式10
<bean id="ServiceTestHTTP" 
class="org.springframework.aop.
framework.ProxyFactoryBean">
    <property name="target" 
ref="ServiceTestHTTPTarget"/>
    <property name="autodetectInterfaces" 
value="true"/>
    <property name="interceptorNames">
        <list>
            <value>requestSetter</value>
        </list>
    </property>
    </bean>
   
    <bean id="requestSetter" 
class="org.gwtwidgets.server.spring.RequestInjection">
    <property name="requestSetterName" 
value="setRequest"/>
    <property name="responseSetterName" 
value="setResponse"/>
    </bean>
==<end>==============




==<box>===========
程式11
<bean class="org.springframework.web.servlet.
handler.SimpleUrlHandlerMapping">
    <property name="mappings">
        <map>
            <entry key="/myservice.svc" 
value-ref="ControllerAdd" />
        </map>
    </property>
</bean>   
<bean id="ControllerAdd" class=
"org.gwtwidgets.server.spring.GWTController">
    <property name="service" ref="myservice"/>
</bean>
<bean id="myService" class=
"com.runpc.server.MyServiceImpl"></bean>
</beans>
==<end>==============



　　
==<box>===========
程式12
  <taskdef resource=
"org/abif/gwt/spring/ant/SpringGwt.properties">
    <classpath>
      <path refid="run.classpath"/>
      <pathelement location=
"${tool.dir}/SpringGwt.jar"/>
      <pathelement location=
"${tool.dir}/spring.jar"/>
      <pathelement location=
"${tool.dir}/commons-logging-1.0.4.jar"/>
    </classpath>
  </taskdef>
==<end>==============



==<box>===========
程式13
<inherits name='org.abif.gwt.Spring'/>
==<end>==============



==<box>===========
程式14
<target name="test">
		<taskdef resource="org/abif/gwt/spring/
ant/SpringGwt.properties">
		  <classpath>
			<path refid="run.classpath"/>
<pathelement location="/spring-gwt-0.4.jar"/>
		  </classpath>
		</taskdef>
		<mkdir dir="${temp.dir}"/>		

		<spring-gwt destDir="${temp.dir}" 
packageName="com.runpc.client" debug="false">
<context file="${resource.dir}/testBeans.xml"/>
		</spring-gwt>
</target>
==<end>==============



==<box>===========
程式15
<?xml version="1.0" encoding="utf-8"?>
<beans>
	<bean id="roundedPanel"
		class="com.runpc.widget.RoundedPanel">
	</bean>	
</beans>
==<end>==============




==<box>===========
程式16
public class GWTSpringDemo2 implements EntryPoint
{ 
    public void onModuleLoad()
    {
        RootPanel slot = RootPanel.get("portal");        
        if (slot != null)
        {
            try
            {
CoreGwtBeanFactoryCreator beanFactoryCreator = 
new CoreGwtBeanFactoryCreator();
            GwtBeanFactory beanFactory = beanFactoryCreator.createGwtBeanFactory();
RoundedPanel widgetRepository = (RoundedPanel)beanFactory.getBean("roundedPanel");
slot.add((Widget) RoundedPanel;
            }
catch (RuntimeException re)
    {
   re.printStackTrace();
   throw re;
}}}}
==<end>==============



　　
　　=========box作者簡介==========
　　沈炳宏 
　　台灣微軟3-1／4-1／5-1／6-1MVP，長庚資管所畢業，致力於各軟體開發技術的研究，現職為軟體工程師。
　　=============end===============