SpringXmlrpcServiceExporter for xmlrpc3.x

      我們的項目用到了xmlrpc,不過還是用的2.x版本的。由於xmlrpc3.x地推出。提供了NULL,Serializable等的支持，將原來的Hashtable改成了Map,Vector改成了List。都是不錯的進步。所以我們決定從xmlrpc2.x升級到xmlrpc3.x.
      在spring裏面有幾個ServiceExporter，org.springframework.remoting.rmi.RmiServiceExporter、org.springframework.remoting.caucho.HessianServiceExporter、org.springframework.remoting.caucho.BurlapServiceExporter。不過沒有xmlrpc的serviceExporter，原來我們是自己封裝的XmlRpcServer,用servlet提供服務。(eg:http://localhost:8080/community/service/xmlrpc)沒有和spring集成雖然用了spring。
    考慮到spring的便利以及配置的同意我決定將xmlrpcService放入spring中。xmlrpc3.x和xmlrpc2.x的代碼基本上沒有一樣的。改了很多東西。除了類型變化之外，還添加了對異常的支持。詳細信息請參照xmlrpc3.x源代碼。
XmlRpcServiceExporter.java

package  com.jdkcn.xmlrpc;

import  javax.servlet.ServletException;

/**
 *  @author  <a href="mailto:[email protected]">somebody</a>
 *  @since  2006-9-27 03:59:22 pm
 *  @version  $Id XmlRpcServiceExporter.java$
  */
public   class  XmlRpcServiceExporter  extends  RemoteExporter  implements
        Controller, InitializingBean {
    
     private  XmlRpcServletServer server;
    
     public  String serviceName;
    
     public  Resource configFile;
    
     public  Boolean enabledForExtensions;
    
     public   void  setEnabledForExtensions(Boolean enabledForExtensions) {
         this .enabledForExtensions  =  enabledForExtensions;
    }

     public   void  setConfigFile(Resource configFile) {
         this .configFile  =  configFile;
    }

     public  String getServiceName() {
         return  serviceName;
    }

     public   void  setServiceName(String serviceName) {
         this .serviceName  =  serviceName;
    }

     public  XmlRpcServletServer getXmlRpcServletServer() {
         return  server;
    }
    
     /*  (non-Javadoc)
     * @see org.springframework.web.servlet.mvc.Controller#handleRequest(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
      */
     public  ModelAndView handleRequest(HttpServletRequest request,
            HttpServletResponse response)  throws  Exception {
         if  ( ! WebContentGenerator.METHOD_POST.equals(request.getMethod())) {
             throw   new  ServletException( " XmlRpcServiceExporter only supports POST requests " );
        }
        server.execute(request, response);
         return   null ;
    }

     /*  (non-Javadoc)
     * @see org.springframework.beans.factory.InitializingBean#afterPropertiesSet()
      */
     public   void  afterPropertiesSet()  throws  Exception {
        server  =   new  XmlRpcServletServer();
        server.setHandlerMapping(newXmlRpcHandlerMapping());
         if  (enabledForExtensions != null ) {
            ((XmlRpcServerConfigImpl) server.getConfig()).setEnabledForExtensions(enabledForExtensions.booleanValue());
        }
        
    }

     /**  Creates a new handler mapping. The default implementation loads
     * a property file from the resource
     * 
      */
     protected  XmlRpcHandlerMapping newXmlRpcHandlerMapping()  throws  XmlRpcException {
        
        SpringHandlerMapping mapping  =   new  SpringHandlerMapping(getServiceInterface());
        mapping.addHandler(getServiceName(), getServiceInterface());
        mapping.setTagetObject(getProxyForService());
         return  mapping;
    }
    
}

spring配置文件

    <bean id="accountService"  class="com.jdkcn.service.impl.AccountServiceImpl">
    </bean>
        <bean name="rpcAccountService" class="com.jdkcn.xmlrpc.XmlRpcServiceExporter">
        <property name="service">
            <ref bean="accountService"/>
        </property>
        <property name="serviceName">
            <value>jdkcn.accountService</value>
        </property>
        <property name="enabledForExtensions">
            <value>true</value>
        </property>
        <property name="serviceInterface">
            <value>com.jdkcn.service.AccountService</value>
        </property>
    </bean>

然後映射一個地址就可以通過xmlrpc訪問服務了

    <bean id="urlMapping" class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
        <property name="mappings">
            <props> 
                <prop key="/account">rpcAccountService</prop>
            </props>
        </property>
    </bean>

web.xml

    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>
            classpath:spring/global.xml
        </param-value>
    </context-param>
    
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

        <servlet>
            <servlet-name>service</servlet-name>
            <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        </servlet>

        <servlet-mapping>
            <servlet-name>service</servlet-name>
            <url-pattern>/service/xmlrpc3/*</url-pattern>
        </servlet-mapping>

然後我們的service地址就是這樣的http://localhost:8080/service/xmlrpc3/account

希望對大家有用，這裏提供project下載。包含一個client程序。com.jdkcn.xmlrpc.Client

點擊下載完整代碼

   除經特別註明外,本文章版權歸莫多泡泡所有.
署名,非商業用途,保持一致.   somebody(莫多)

莫多 2006-10-22 16:12 發表評論