使用Android调用SOAP Webservice时连接被拒绝

问题描述：

我在.net中开发了一个web服务，我试图在Android中调用它。要调用Web服务，我正在使用ksoap2。使用Android调用SOAP Webservice时连接被拒绝

的WDSL的网址是：http://localhost/Cidadaos_Cidade/Open.asmx?WSDL

这里的WSDL

<?xml version="1.0" encoding="utf-8"?> 
<wsdl:definitions xmlns:s="http://www.w3.org/2001/XMLSchema" xmlns:soap12="http://schemas.xmlsoap.org/wsdl/soap12/" xmlns:mime="http://schemas.xmlsoap.org/wsdl/mime/" xmlns:tns="http://Cidadaos_Cidade/Open/" xmlns:s0="http://www.outsystems.com" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:tm="http://microsoft.com/wsdl/mime/textMatching/" xmlns:http="http://schemas.xmlsoap.org/wsdl/http/" xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" targetNamespace="http://Cidadaos_Cidade/Open/" xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/"> 
    <wsdl:types> 
    <s:schema elementFormDefault="qualified" targetNamespace="http://www.outsystems.com"> 
     <s:element name="GetCategoriasFull"> 
     <s:complexType /> 
     </s:element> 
     <s:element name="GetCategoriasFullResponse"> 
     <s:complexType> 
      <s:sequence> 

      <s:element minOccurs="0" maxOccurs="1" name="Out1" type="s0:ArrayOfWORCCategoriaSubcategoriaRecord" /> 
      </s:sequence> 
     </s:complexType> 
     </s:element> 
     <s:complexType name="ArrayOfWORCCategoriaSubcategoriaRecord"> 
     <s:sequence> 
      <s:element minOccurs="0" maxOccurs="unbounded" name="WORCCategoriaSubcategoriaRecord" nillable="true" type="s0:WORCCategoriaSubcategoriaRecord" /> 
     </s:sequence> 
     </s:complexType> 

     <s:complexType name="WORCCategoriaSubcategoriaRecord"> 
     <s:sequence> 
      <s:element minOccurs="0" maxOccurs="1" name="ssENCategoria" type="s0:Categoria" /> 
      <s:element minOccurs="0" maxOccurs="1" name="ssENSubcategoria" type="s0:Subcategoria" /> 
     </s:sequence> 
     </s:complexType> 
     <s:complexType name="Categoria"> 
     <s:sequence> 
      <s:element minOccurs="1" maxOccurs="1" name="Id" type="s:int" /> 

      <s:element minOccurs="0" maxOccurs="1" name="Nome" type="s:string" /> 
     </s:sequence> 
     </s:complexType> 
     <s:complexType name="Subcategoria"> 
     <s:sequence> 
      <s:element minOccurs="1" maxOccurs="1" name="Id" type="s:int" /> 
      <s:element minOccurs="0" maxOccurs="1" name="Nome" type="s:string" /> 
      <s:element minOccurs="0" maxOccurs="1" name="Imagem" type="s:string" /> 
      <s:element minOccurs="1" maxOccurs="1" name="CategoriaId" type="s:int" /> 

     </s:sequence> 
     </s:complexType> 
     <s:element name="GetCategorias"> 
     <s:complexType /> 
     </s:element> 
     <s:element name="GetCategoriasResponse"> 
     <s:complexType> 
      <s:sequence> 
      <s:element minOccurs="0" maxOccurs="1" name="Out1" type="s0:ArrayOfCategoria" /> 

      </s:sequence> 
     </s:complexType> 
     </s:element> 
     <s:complexType name="ArrayOfCategoria"> 
     <s:sequence> 
      <s:element minOccurs="0" maxOccurs="unbounded" name="Categoria" nillable="true" type="s0:Categoria" /> 
     </s:sequence> 
     </s:complexType> 
    </s:schema> 

    </wsdl:types> 
    <wsdl:message name="GetCategoriasFullSoapIn"> 
    <wsdl:part name="parameters" element="s0:GetCategoriasFull" /> 
    </wsdl:message> 
    <wsdl:message name="GetCategoriasFullSoapOut"> 
    <wsdl:part name="parameters" element="s0:GetCategoriasFullResponse" /> 
    </wsdl:message> 
    <wsdl:message name="GetCategoriasSoapIn"> 
    <wsdl:part name="parameters" element="s0:GetCategorias" /> 

    </wsdl:message> 
    <wsdl:message name="GetCategoriasSoapOut"> 
    <wsdl:part name="parameters" element="s0:GetCategoriasResponse" /> 
    </wsdl:message> 
    <wsdl:portType name="OpenSoap"> 
    <wsdl:operation name="GetCategoriasFull"> 
     <wsdl:input message="tns:GetCategoriasFullSoapIn" /> 
     <wsdl:output message="tns:GetCategoriasFullSoapOut" /> 
    </wsdl:operation> 

    <wsdl:operation name="GetCategorias"> 
     <wsdl:input message="tns:GetCategoriasSoapIn" /> 
     <wsdl:output message="tns:GetCategoriasSoapOut" /> 
    </wsdl:operation> 
    </wsdl:portType> 
    <wsdl:binding name="OpenSoap" type="tns:OpenSoap"> 
    <soap:binding transport="http://schemas.xmlsoap.org/soap/http" /> 
    <wsdl:operation name="GetCategoriasFull"> 
     <soap:operation soapAction="http://Cidadaos_Cidade/Open/GetCategoriasFull" style="document" /> 

     <wsdl:input> 
     <soap:body use="literal" /> 
     </wsdl:input> 
     <wsdl:output> 
     <soap:body use="literal" /> 
     </wsdl:output> 
    </wsdl:operation> 
    <wsdl:operation name="GetCategorias"> 
     <soap:operation soapAction="http://Cidadaos_Cidade/Open/GetCategorias" style="document" /> 

     <wsdl:input> 
     <soap:body use="literal" /> 
     </wsdl:input> 
     <wsdl:output> 
     <soap:body use="literal" /> 
     </wsdl:output> 
    </wsdl:operation> 
    </wsdl:binding> 
    <wsdl:binding name="OpenSoap12" type="tns:OpenSoap"> 

    <soap12:binding transport="http://schemas.xmlsoap.org/soap/http" /> 
    <wsdl:operation name="GetCategoriasFull"> 
     <soap12:operation soapAction="http://Cidadaos_Cidade/Open/GetCategoriasFull" style="document" /> 
     <wsdl:input> 
     <soap12:body use="literal" /> 
     </wsdl:input> 
     <wsdl:output> 
     <soap12:body use="literal" /> 
     </wsdl:output> 

    </wsdl:operation> 
    <wsdl:operation name="GetCategorias"> 
     <soap12:operation soapAction="http://Cidadaos_Cidade/Open/GetCategorias" style="document" /> 
     <wsdl:input> 
     <soap12:body use="literal" /> 
     </wsdl:input> 
     <wsdl:output> 
     <soap12:body use="literal" /> 
     </wsdl:output> 

    </wsdl:operation> 
    </wsdl:binding> 
    <wsdl:service name="Open"> 
    <wsdl:port name="OpenSoap" binding="tns:OpenSoap"> 
     <soap:address location="http://localhost/Cidadaos_Cidade/Open.asmx" /> 
    </wsdl:port> 
    <wsdl:port name="OpenSoap12" binding="tns:OpenSoap12"> 
     <soap12:address location="http://localhost/Cidadaos_Cidade/Open.asmx" /> 
    </wsdl:port> 

    </wsdl:service> 
</wsdl:definitions>

而这里的代码来调用它

SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME); 


     SoapSerializationEnvelope soapEnvelope = new SoapSerializationEnvelope(SoapEnvelope.VER11); 
     //soapEnvelope.dotNet = true; //tried with and without this flag 
     soapEnvelope.setOutputSoapObject(request); 

     AndroidHttpTransport aht = new AndroidHttpTransport(URL); 
     try{ 
      //crashes in the following line with the exception: 
      //java.net.ConnectException: localhost/127.0.0.1:80 - Connection refused 
      aht.call(SOAP_ACTION, soapEnvelope); 
      SoapObject resultsRequestSOAP = (SoapObject) soapEnvelope.bodyIn; 

     }catch(Exception ex){ 
      ex.printStackTrace(); 
     }

谁能帮助我？我已经尝试使用C＃.net项目来调用它，并且完美地工作。对不起，把所有的XML和代码放在这里，但我绝望...

答

我不知道有关android的发展，但本地主机是一个环回地址到您的Android设备。你需要用运行你的web服务的服务器的名称或IP地址替换localhost。

哦！天哪！！我怎么能忘记它？!!？！？！？！？对我感到羞耻：'（ – 2010-10-16 13:35:11

答

在android中，当你引用localhost进行web服务调用时，它总是会给你一个错误，因为本地主机是针对android进行循环的。你必须为此使用别名地址。检查这个舔添加别名地址。 connection refused error when calling web service - Android

我花了我一小时才意识到，如果你使用模拟器，你必须使用10.0.2.2！不是本地主机...... – David 2012-01-13 13:07:56

答

实际上，当我们在本地主机上运行服务时，服务运行良好，但是当我们尝试从android访问本地主机时，它给出了错误，原因是“本地主机”是android模拟器设备的回送地址。所以你必须做的是给别名地址。使用以下IP地址呼叫您的网络服务。在Android的

您的Web服务的URL看起来像 http://10.0.2.2:PortNumber/WebService.php

使用Android调用SOAP Webservice时连接被拒绝

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