采用SOAP方式访问web服务

1.这是jax-ws方式访问web 服务的时候生成的一个 soap消息，那么 要是我们自己可以创建这样的一个消息，我们应该就可以完成服务的请求

- <soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:q0="http://soap.xiongpan.com/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <soapenv:Body>
       <q0:add>
            <a>1</a>
            <b>2</b>
            </q0:add>
       </soapenv:Body>
  </soapenv:Envelope>

先看看  SOAPMessage 的一个概括图 记清楚这个图 我们就很好写代码了



 

服务端发布的wsdl的如下

This XML file does not appear to have any style information associated with it. The document tree is shown below.
<!--
Published by JAX-WS RI at http://jax-ws.dev.java.net. RI's version is JAX-WS RI 2.1.6 in JDK 6.
-->
<!--
Generated by JAX-WS RI at http://jax-ws.dev.java.net. RI's version is JAX-WS RI 2.1.6 in JDK 6.
-->
<definitions xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:tns="http://soap.xiongpan.com/" xmlns:xsd="http://www.w3.org/2001/XMLSchema"xmlns="http://schemas.xmlsoap.org/wsdl/" targetNamespace="http://soap.xiongpan.com/" name="ServerUtilImplService">
<types>
<xsd:schema>
<xsd:import namespace="http://soap.xiongpan.com/" schemaLocation="http://localhost:9595/ns?xsd=1"/>
</xsd:schema>
</types>
<message name="add">
<part name="parameters" element="tns:add"/>
</message>
<message name="addResponse">
<part name="parameters" element="tns:addResponse"/>
</message>
<portType name="ServerUtil">
<operation name="add">
<input message="tns:add"/>
<output message="tns:addResponse"/>
</operation>
</portType>
<binding name="ServerUtilImplPortBinding" type="tns:ServerUtil">
<soap:binding transport="http://schemas.xmlsoap.org/soap/http" style="document"/>
<operation name="add">
<soap:operation soapAction=""/>
<input>
<soap:body use="literal"/>
</input>
<output>
<soap:body use="literal"/>
</output>
</operation>
</binding>
<service name="ServerUtilImplService">
<port name="ServerUtilImplPort" binding="tns:ServerUtilImplPortBinding">
<soap:address location="http://localhost:9595/ns"/>
</port>
</service>
</definitions>

客户端用soap的方式去访问

package com.xiongpan.soap;
import java.net.URL;
import javax.xml.namespace.QName;
import javax.xml.soap.MessageFactory;
import javax.xml.soap.SOAPBody;
import javax.xml.soap.SOAPBodyElement;
import javax.xml.soap.SOAPEnvelope;
import javax.xml.soap.SOAPMessage;
import javax.xml.soap.SOAPPart;
import javax.xml.ws.Dispatch;
import javax.xml.ws.Service;

public class ClientTest {

       public static void main(String[] args) throws Exception{
            
             ///创建一个消息工厂
              MessageFactory factory=MessageFactory. newInstance();
             ///创建一个消息
              SOAPMessage  message=  factory.createMessage();
             //获得SOAPPART
             SOAPPart part= message.getSOAPPart();
            
             //获得信封(envelope)
             SOAPEnvelope  envelope=part.getEnvelope();
             //获得SOAP的body
             SOAPBody body= envelope.getBody();
             //创建一个qname  qname就是一个带命名空间的xml片段 下面这段会被翻译为
             /*
              <ns:add xmlns:ns="http://soap.xiongpan.com/">
              </ns:add>
              */
             QName qname= new QName( "http://soap.xiongpan.com/" , "add" , "ns" );
             
             SOAPBodyElement element= body.addBodyElement(qname);
             element.addChildElement( "a").setValue( "22");
            
             element.addChildElement( "b").setValue( "332");
      
            message.writeTo(System. out);
             //创建要访问的服务
            URL url= new URL( "http://localhost:9595/ns?wsdl" );
            QName sqname= new QName("http://soap.xiongpan.com/" ,"ServerUtilImplService" );
            Service service=Service. create(url,sqname);
            
             //创建Dispatch
            Dispatch<SOAPMessage> dispatch=service
                        .createDispatch( new QName("http://soap.xiongpan.com/" ,"ServerUtilImplPort" ), SOAPMessage.class , Service.Mode.MESSAGE );
            
            SOAPMessage responeMessage=   dispatch.invoke(message);
            System. out.println( "invoke----------------------------------" );
            responeMessage.writeTo(System. out);
            
            
      }
}

执行结果：
     发送的请求

<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/"><SOAP-ENV:Header/><SOAP-ENV:Body><ns:add xmlns:ns="http://soap.xiongpan.com/"><a>22</a><b>332</b></ns:add></SOAP-ENV:Body></SOAP-ENV:Envelope>

invoke----------------------------------
返回的结果：

<S:Envelope xmlns:S="http://schemas.xmlsoap.org/soap/envelope/"><S:Header/><S:Body><ns2:addResponse xmlns:ns2="http://soap.xiongpan.com/"><add>354</add></ns2:addResponse></S:Body></S:Envelope>