《pro Spring》学习笔记之Spring+Axis1.4开发WebService实例之复杂类型处理

实现原理类同于 http://blog.youkuaiyun.com/daryl715/archive/2007/09/20/1793826.aspx，一点区别在于本文着重讨论远程服务返回复杂类型的情况，其实也就是对返回类型在webservice做一些配置，客户端进行一些修改等

服务端：

POJO及远程接口

 

package  ch16.ComplexAxis;

public   interface  MessageService  ... {
   public MessageBean getMessageBean();
}


package  ch16.ComplexAxis;

import  java.rmi.Remote;
import  java.rmi.RemoteException;

public   interface  RemoteMessageService  extends  Remote  ... {
   public MessageBean getMessageBean () throws RemoteException;
}

服务接口实现

 

package  ch16.ComplexAxis;

public   class  SimpleMessageServie  implements  MessageService  ... {

    public MessageBean getMessageBean() ...{
        return new MessageBean("helloworld","gaoxiang");
    }

}

 

JavaBean：

 

package  ch16.ComplexAxis;

import  java.io.Serializable;

public   class  MessageBean  implements  Serializable  ... {
   private String message;
   private String senderName;
   public MessageBean()...{
       
   }
public MessageBean(String message, String senderName) ...{

    this.message = message;
    this.senderName = senderName;
}
public String getMessage() ...{
    return message;
}
public void setMessage(String message) ...{
    this.message = message;
}
public String getSenderName() ...{
    return senderName;
}
public void setSenderName(String senderName) ...{
    this.senderName = senderName;
}
public String toString()...{
    return this.message+" by "+this.senderName;
}
}

 

WEB服务实现

 

package  ch16.ComplexAxis;

import  java.rmi.RemoteException;

import  javax.xml.rpc.ServiceException;

import  org.springframework.remoting.jaxrpc.ServletEndpointSupport;

public   class  JaxRpcMessageService  extends  ServletEndpointSupport  implements
        RemoteMessageService  ... {
    private MessageService messageService;
    @Override
    protected void onInit() throws ServiceException ...{
        messageService=(MessageService)getWebApplicationContext().getBean("messageService");
    }
    public MessageBean getMessageBean() throws RemoteException ...{
        
        return messageService.getMessageBean();
    }

}

 

spring配置文件：

 

<? 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-2.0.xsd" >
< bean  id ="helloWorldService"  class ="ch16.SimpleAxis.SimpleHelloWorld" >
</ bean >
< bean  id ="messageService"  class ="ch16.ComplexAxis.SimpleMessageServie" >
</ bean >
</ beans >

 

axis部署描述符(增加了对复杂返回类的配置)

 

< deployment  xmlns ="http://xml.apache.org/axis/wsdd/"
            xmlns:java ="http://xml.apache.org/axis/wsdd/providers/java" >
      < handler  name ="URLMapper"  type ="java:org.apache.axis.handlers.http.URLMapper" />
     
      < service  name ="MessageService"  provider ="java:RPC" >
        < parameter  name ="className"  value ="ch16.ComplexAxis.JaxRpcMessageService" />
        < parameter  name ="allowedMethods"  value ="*" />   
        <!--  绑定复杂类型对象  -->
        < beanMapping  qname ="ws:MessageBean"  xmlns:ws ="http://localhost"
                    languageSpecificType ="java:ch16.ComplexAxis.MessageBean" />
                   
      </ service >  
     
      < transport  name ="http" >
        < requestFlow >
           < handler  type ="URLMapper" />
        </ requestFlow >
      </ transport >
</ deployment >

 

web.xml

 

< context-param >
       < param-name > contextConfigLocation </ param-name >
       < param-value > /WEB-INF/applicationContext-server.xml </ param-value >
     </ context-param >
    
     < servlet >
       < servlet-name > context </ servlet-name >
       < servlet-class > org.springframework.web.context.ContextLoaderServlet </ servlet-class >
       < load-on-startup > 1 </ load-on-startup >
     </ servlet >     
    
     < servlet >
       < servlet-name > axis </ servlet-name >
       < servlet-class > org.apache.axis.transport.http.AxisServlet </ servlet-class >
       < load-on-startup > 2 </ load-on-startup >
     </ servlet >
  
    < servlet-mapping >
     < servlet-name > axis </ servlet-name >
     < url-pattern > /services/* </ url-pattern >
   </ servlet-mapping >

 

 

客户端：

Spring没有为返回复杂类型的情况提供相应的JaxRpcPortProxyFactoryBean提供实现，所以我们必须自定义一个

 

package  ch16.ComplexAxis;

import  javax.xml.namespace.QName;
import  javax.xml.rpc.Service;
import  javax.xml.rpc.encoding.TypeMapping;
import  javax.xml.rpc.encoding.TypeMappingRegistry;

import  org.apache.axis.encoding.ser.BeanDeserializerFactory;
import  org.apache.axis.encoding.ser.BeanSerializerFactory;
import  org.springframework.remoting.jaxrpc.JaxRpcPortProxyFactoryBean;

public   class  MessageServiceJaxRpcProxyFactoryBean  extends
        JaxRpcPortProxyFactoryBean  ... {

    protected void postProcessJaxRpcService(Service service) ...{
       TypeMappingRegistry tmr=service.getTypeMappingRegistry();
       TypeMapping tm=tmr.createTypeMapping();
       
       QName qname=new QName("http://localhost","MessageBean");
       tm.register(MessageBean.class, qname,
                   new BeanSerializerFactory(MessageBean.class,qname),
                   new BeanDeserializerFactory(MessageBean.class,qname));
       tmr.register("http://schemas.xmlsoap.org/soap/encoding/", tm);
    }
    
}

 

其中Qname的属性和axis配置过的对应

 

客户端spring配置文件

 

<? 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-2.0.xsd" >

< bean  id ="messageBeanService"  class ="ch16.ComplexAxis.MessageServiceJaxRpcProxyFactoryBean" >
   < property  name ="serviceFactoryClass" >
     < value > org.apache.axis.client.ServiceFactory </ value >
   </ property >
   < property  name ="wsdlDocumentUrl" >
     < value > http://localhost:81/ProSpringStudyWeb/services/MessageService?wsdl </ value >
   </ property >
   < property  name ="namespaceUri" >
     < value > http://localhost:81/ProSpringStudyWeb/services/MessageService </ value >
   </ property >
   < property  name ="serviceName" >
     < value > JaxRpcMessageServiceService </ value >
   </ property >
   < property  name ="portName" >
     < value > MessageService </ value >
   </ property >
   < property  name ="portInterface" >
     < value > ch16.ComplexAxis.RemoteMessageService </ value >
   </ property >
   < property  name ="serviceInterface" >
     < value > ch16.ComplexAxis.MessageService </ value >
   </ property >
</ bean >
</ beans >

 

测试代码：

 

package  ch16.ComplexAxis;

import  org.springframework.context.ApplicationContext;
import  org.springframework.context.support.ClassPathXmlApplicationContext;



public   class  Test  ... {

    public static void main(String[] args) ...{
        ApplicationContext context = new ClassPathXmlApplicationContext("ch16/ComplexAxis/applicationContext-client.xml");
        MessageService messageService=(MessageService)context.getBean("messageBeanService");
        System.out.println(messageService.getMessageBean());
    
    }

}

 

运行服务端后，运行客户端测试程序，会出现以下结果

log4j:WARN No appenders could be found for logger (org.springframework.context.support.ClassPathXmlApplicationContext).
log4j:WARN Please initialize the log4j system properly.
helloworld by gaoxiang

证明webservice返回复杂类型测试成功