spring的portlet改进(二)支持CURD标注的groovy充当controller
spring的portlet改进(二)支持CURD标注的groovy充当controller
既然在普通的servlet的controller里面，我们已经实现了标注的groovycontroller
理论上来说，也可以实现portlet的controller里面也支持groovy的annotation。
1、easygroovyplugin的改进
下面需要对我们的easygroovyplugin做一下重构和改进，不仅要支持servlet的controller，也同时要支持portlet的controller。
以前的easygroovyplugin里面的proxy类是ProxyAwareAnnotationMethodHandlerAdapter集成自
org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter;这个基类
来自于servlet.mvc里面的，整个proxy类内容如下：
packagecom.sillycat.easygroovyplugin.servlet.proxy;
importjavax.servlet.http.HttpServletRequest;
importjavax.servlet.http.HttpServletResponse;
importorg.springframework.aop.TargetSource;
importorg.springframework.aop.framework.Advised;
importorg.springframework.web.servlet.ModelAndView;
importorg.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter;
publicclassProxyAwareAnnotationMethodHandlerAdapterextends
AnnotationMethodHandlerAdapter{
@Override
publicModelAndViewhandle(HttpServletRequestrequest,
HttpServletResponseresponse,Objecthandler)throwsException{
handler=unwrapHandler(handler);
returnsuper.handle(request,response,handler);
}
@Override
publicbooleansupports(Objecthandler){
handler=unwrapHandler(handler);
returnsuper.supports(handler);
}
privateObjectunwrapHandler(Objecthandler){
if(handlerinstanceofAdvised){
try{
TargetSourcetargetSource=((Advised)handler)
.getTargetSource();
returntargetSource.getTarget();
}catch(Exceptionx){
thrownewRuntimeException(x);
}
}else{
returnhandler;
}
}
}
其实portlet.mvc包里面的东东和servlet.mvc的东东其实是很类似的，所以我参考上面的类，写了
packagecom.sillycat.easygroovyplugin.portlet.proxy;
importjavax.portlet.PortletRequest;
importjavax.portlet.PortletResponse;
importorg.springframework.aop.TargetSource;
importorg.springframework.aop.framework.Advised;
importorg.springframework.web.portlet.ModelAndView;
importorg.springframework.web.portlet.mvc.annotation.AnnotationMethodHandlerAdapter;
publicclassProxyAwareAnnotationMethodHandlerAdapterextends
AnnotationMethodHandlerAdapter{
publicModelAndViewdoHandle(PortletRequestrequest,
PortletResponseresponse,Objecthandler)throwsException{
handler=unwrapHandler(handler);
returnsuper.doHandle(request,response,handler);
}
@Override
publicbooleansupports(Objecthandler){
handler=unwrapHandler(handler);
returnsuper.supports(handler);
}
privateObjectunwrapHandler(Objecthandler){
if(handlerinstanceofAdvised){
try{
TargetSourcetargetSource=((Advised)handler)
.getTargetSource();
returntargetSource.getTarget();
}catch(Exceptionx){
thrownewRuntimeException(x);
}
}else{
returnhandler;
}
}
}
主要的区别就是继承的基类不同了，portlet的是：
org.springframework.web.portlet.mvc.annotation.AnnotationMethodHandlerAdapter;
2、easyportlet的配置修改
applicationContext-easyportlet.xml的修改如下：
<?xmlversion="1.0"encoding="UTF-8"?>
<beansxmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xmlns:p="http://www.springframework.org/schema/p"
xmlns:util="http://www.springframework.org/schema/util"xmlns:lang="http://www.springframework.org/schema/lang"
xmlns:aop="http://www.springframework.org/schema/aop"xmlns:context="http://www.springframework.org/schema/context"
xmlns:groovy="http://www.sillycat.com/schema/groovy"
xsi:schemaLocation="
http://www.springframework.org/schema/beanshttp://www.springframework.org/schema/beans/spring-beans-2.5.xsd
http://www.springframework.org/schema/utilhttp://www.springframework.org/schema/util/spring-util-2.5.xsd
http://www.springframework.org/schema/langhttp://www.springframework.org/schema/lang/spring-lang-2.5.xsd
http://www.springframework.org/schema/aophttp://www.springframework.org/schema/aop/spring-aop-2.5.xsd
http://www.springframework.org/schema/contexthttp://www.springframework.org/schema/context/spring-context-2.5.xsd
http://www.sillycat.com/schema/groovyhttp://www.sillycat.com/schema/groovy/groovy.xsd">
<beanid="propertyConfigurer"
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"
lazy-init="false">
<propertyname="locations">
<list>
<value>classpath*:easyportlet.properties
</value>
</list>
</property>
</bean>
<context:component-scanbase-package="com.sillycat.easyportlet.web"/>
<beanid="viewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<propertyname="viewClass"
value="org.springframework.web.servlet.view.JstlView"/>
<propertyname="prefix"value="/WEB-INF/portlets/easyportlet/"/>
<propertyname="suffix"value=".jsp"/>
</bean>
<!--DefaultExceptionHandler-->
<beanid="defaultExceptionHandler"
class="org.springframework.web.portlet.handler.SimpleMappingExceptionResolver">
<propertyname="order"value="10"/>
<propertyname="defaultErrorView"value="error"/>
<propertyname="exceptionMappings">
<props>
<propkey="javax.portlet.UnavailableException">
unavailable
</prop>
<propkey="java.lang.Exception">error</prop>
</props>
</property>
</bean>
<beanclass="org.springframework.web.portlet.mvc.annotation.DefaultAnnotationHandlerMapping">
<propertyname="interceptors">
<bean
class="org.springframework.web.portlet.handler.ParameterMappingInterceptor"/>
</property>
</bean>
<beanid="handlerAdapter"
class="com.sillycat.easygroovyplugin.portlet.proxy.ProxyAwareAnnotationMethodHandlerAdapter"/>
<lang:defaultsrefresh-check-delay="5"/>
<groovy:scansource-pattern="/groovy/*.groovy"/>
<beanid="addressManager"
class="com.sillycat.easyportlet.services.impl.AddressManagerImpl"/>
</beans>
配置中没有再配置JAVA的controller了，而是直接在路径上去scangroovy的文件。将原来的controller文件稍作修改，jsp页面的内容没有改变
AddressEditController.groovy文件如下：
packagecom.sillycat.easyportlet.web;
importjava.util.List;
importjavax.portlet.ActionResponse;
importorg.springframework.stereotype.Controller;
importorg.springframework.ui.Model;
importorg.springframework.validation.BindingResult;
importorg.springframework.web.bind.annotation.RequestMapping;
importorg.springframework.web.bind.annotation.RequestParam;
importorg.springframework.beans.factory.annotation.Autowired;
importcom.sillycat.easyportlet.model.Address;
importcom.sillycat.easyportlet.services.AddressManager;
@Controller
@RequestMapping("EDIT")
classAddressEditController{
@Autowired
AddressManageraddressManager
@RequestMapping
//default(action=list)
publicStringlistAddresses(Modelmodel){
List<Address>addresses=addressManager.list()
//List<Address>addresses=null
model.addAttribute("addresses",addresses)
return"addressList"
}
@RequestMapping(params="action=add")
//renderphase
publicStringshowAddressForm(Modelmodel){
Addressaddress=null
address=newAddress()
model.addAttribute("address",address)
return"addressAdd"
}
@RequestMapping(params="action=edit")
//renderphase
publicStringeditAddress(@RequestParam("id")Integerid,Modelmodel){
model.addAttribute("address",addressManager.get(id))
return"addressEdit"
}
@RequestMapping(params="action=save")
//actionphase
publicvoidpopulateAddress(Addressaddress,BindingResultresult,
ActionResponseresponse){
if(address!=null){
if(address.getId()!=null&&address.getId().intValue()!=0){
addressManager.update(address)
}else{
addressManager.create(address)
}
}
response.setRenderParameter("action","list")
}
@RequestMapping(params="action=delete")
publicvoidremoveAddress(@RequestParam("id")Integerid,
ActionResponseresponse){
addressManager.delete(id)
response.setRenderParameter("action","list")
}
}
AddressRedirectController.groovy文件如下：
packagecom.sillycat.easyportlet.web;
importjava.util.List;
importorg.springframework.beans.factory.annotation.Autowired;
importorg.springframework.stereotype.Controller;
importorg.springframework.ui.Model;
importorg.springframework.web.bind.annotation.RequestMapping;
importorg.springframework.web.bind.annotation.RequestParam;
importorg.springframework.beans.factory.annotation.Autowired;
importcom.sillycat.easyportlet.model.Address;
importcom.sillycat.easyportlet.services.AddressManager;
@Controller
@RequestMapping("VIEW")
classAddressRedirectController{
@Autowired
AddressManageraddressManager
@RequestMapping
//defaultrender(action=list)
publicStringlistAddresses(Modelmodel){
List<Address>addresses=addressManager.list()
//List<Address>addresses=null
model.addAttribute("addresses",addresses)
return"addressListView"
}
@RequestMapping(params="action=view")
//renderphase
publicStringviewAddress(@RequestParam("id")Integerid,Modelmodel){
Addressaddress=null
address=addressManager.get(id)
model.addAttribute("address",address)
return"addressView"
}
}
这样我们就将portlet从javacontroller改造成了groovycontroller了。