webservice Quiz（Wsdl ＆Soap）

 

  < wsdl:types />
   < wsdl:message  name ="AddSoapIn" >
     < wsdl:part  name ="a"  type ="s:int"   />
     < wsdl:part  name ="b"  type ="s:int"   />
   </ wsdl:message >
   < wsdl:message  name ="AddSoapOut" >
     < wsdl:part  name ="AddResult"  type ="s:int"   />
   </ wsdl:message >
   < wsdl:portType  name ="MathServiceSoap" >
     <wsdl:operation name="Add">
       <wsdl:input message="tns:AddSoapIn" />
       <wsdl:output message="tns:AddSoapOut" />
     </wsdl:operation>
   </ wsdl:portType >
   < wsdl:binding  name ="MathServiceSoap"  type ="tns:MathServiceSoap" >
     < soap:binding  transport ="http://schemas.xmlsoap.org/soap/http"  style ="document"   />
     <wsdl:operation name="Add">
       <soap:operation soapAction="http://idior.cnblogs.com/Math/Add" style="rpc" />
       <wsdl:input>
         <soap:body use="encoded" namespace="http://tempuri.org/" encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" />
       </wsdl:input>
       <wsdl:output>
         <soap:body use="encoded" namespace="http://tempuri.org/" encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" />
       </wsdl:output>
     </wsdl:operation>
   </ wsdl:binding >

 

以上是一段wsdl的片断，其中主要定义了一个Add方法。针对粗体字部分，我们得到以下使用该webservice的soap请求。

POST /WebService1/Service1.asmx HTTP/1.1
Host: localhost
Content-Type: text/xml; charset=utf-8
Content-Length: length
SOAPAction: "http://idior.cnblogs.com/Math/Add"

<? xml version="1.0" encoding="utf-8" ?>
< soap:Envelope  xmlns:xsi ="http://www.w3.org/2001/XMLSchema-instance"  xmlns:xsd ="http://www.w3.org/2001/XMLSchema"  xmlns:soapenc ="http://schemas.xmlsoap.org/soap/encoding/"  xmlns:tns ="http://tempuri.org/"  xmlns:types ="http://tempuri.org/encodedTypes"  xmlns:soap ="http://schemas.xmlsoap.org/soap/envelope/" >
  < soap:Body  soap:encodingStyle ="http://schemas.xmlsoap.org/soap/encoding/" >
    < tns:Add>
      <a xsi:type="xsd:int">int</ a>
      <b xsi:type="xsd:int">int</ b>
    </ tns:Add>
  </ soap:Body >
</ soap:Envelope >

可以看出在WSDL中定义好的SoapAction被放在了Http的请求头中， 为了调用Add这个WebService中的方法，SOAP包中粗体字部分发出的请求恰恰对应了WSDL中定义的operation的name---Add.

那么对于下面的WSDL文件，我们又该发出怎样的SOAP请求呢？

< wsdl:types >
     < s:schema  elementFormDefault ="qualified"  targetNamespace ="http://tempuri.org/" >
       <s:element name="Add">
         <s:complexType>
           <s:sequence>
             <s:element minOccurs="1" maxOccurs="1" name="a" type="s:int" />
             <s:element minOccurs="1" maxOccurs="1" name="b" type="s:int" />
           </s:sequence>
         </s:complexType>
       </s:element>
       < s:element  name ="AddReponse" >
         < s:complexType >
           < s:sequence >
             < s:element  minOccurs ="1"  maxOccurs ="1"  name ="AddOperationResult"  type ="s:int"   />
           </ s:sequence >
         </ s:complexType >
       </ s:element >
     </ s:schema >
   </ wsdl:types >
   < wsdl:message  name ="AddOperationSoapIn" >
     < wsdl:part  name ="parameters"  element ="tns:Add"   />
   </ wsdl:message >
   < wsdl:message  name ="AddOperationSoapOut" >
     < wsdl:part  name ="parameters"  element ="tns:AddReponse"   />
   </ wsdl:message >
   < wsdl:portType  name ="MathServiceSoap" >
     <wsdl:operation name="AddOperation">
       <wsdl:input message="tns:AddOperationSoapIn" />
       <wsdl:output message="tns:AddOperationSoapOut" />
     </wsdl:operation>
   </ wsdl:portType >
   < wsdl:binding  name ="MathServiceSoap"  type ="tns:MathServiceSoap" >
     < soap:binding  transport ="http://schemas.xmlsoap.org/soap/http"  style ="document"   />
     < wsdl:operation  name ="AddOperation" >
       <soap:operation soapAction="http://idior.cnblogs.com/Math/Add" style="document" />
       < wsdl:input >
         < soap:body  use ="literal"   />
       </ wsdl:input >
       < wsdl:output >
         < soap:body  use ="literal"   />
       </ wsdl:output >
     </ wsdl:operation >
   </ wsdl:binding >

现在为了调用AddOperation（注意 Add改成AddOperation了）方法，你认为Soap Body中对应的那个元素名???是什么呢？

POST /WebService1/Service1.asmx HTTP/1.1
Host: localhost
Content-Type: text/xml; charset=utf-8
Content-Length: length
SOAPAction: "http://idior.cnblogs.com/Math/Add"

<? xml version="1.0" encoding="utf-8" ?>
< soap:Envelope  xmlns:xsi ="http://www.w3.org/2001/XMLSchema-instance"  xmlns:xsd ="http://www.w3.org/2001/XMLSchema"  xmlns:soap ="http://schemas.xmlsoap.org/soap/envelope/" >
   < soap:Body >
     < ??? xmlns="http://tempuri.org/">
      <a>int</a>
      <b>int</b>
    </??? > 
   </ soap:Body >
</ soap:Envelope >

原理说明