null object returnd to .net client while calling axis web service

Discussion in 'ASP .Net Web Services' started by chandra kantha via .NET 247, Mar 29, 2005.

  1. Hi ,
    I have a java web services (message style web service whichreturns document object) on axis and im trying to access it fromvb.net client. It is returning nothing/null. Please help me tofix this problem. We monitored the SOAP request and responsethey look ok.

    Web service code
    ========================================================
    public class MessageServiceDoc {
    * Service method, which simply echoes back any XML itreceives.
    public Document echoDocument(Document doc)
    {
    // Printing an element from the recieved XML document
    System.out.println("PriMod = " +doc.getElementsByTagName("PriMod").getLength());

    return doc;
    }
    }
    ==================================
    WSDD file looks like this
    ==========================
    <deployment name="test" xmlns="http://xml.apache.org/axis/wsdd/"
    xmlns:java="http://xml.apache.org/axis/wsdd/providers/java"
    xmlns:xsi="http://www.w3.org/2000/10/XMLSchema-instance">
    <service name=" MessageServiceDoc " style="message">
    <parameter name="className" value="samples.message.MessageServiceDoc " />
    <parameter name="allowedMethods" value="echoDocument" />
    </service>
    </deployment>

    WSDL file looks like this
    =======================================
    <?xml version="1.0" encoding="UTF-8" ?>
    - <wsdl:definitionstargetNamespace="http://gdcwf215:8080/axis/services/MessageServiceDoc" xmlns="http://schemas.xmlsoap.org/wsdl/"xmlns:apachesoap="http://xml.apache.org/xml-soap"xmlns:impl="http://gdcwf215:8080/axis/services/MessageServiceDoc"xmlns:intf="http://gdcwf215:8080/axis/services/MessageServiceDoc" xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/"xmlns:tns1="http://message.samples"xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/"xmlns:wsdlsoap="http://schemas.xmlsoap.org/wsdl/soap/"xmlns:xsd="http://www.w3.org/2001/XMLSchema">
    - <wsdl:types>
    - <schema targetNamespace="http://message.samples"xmlns="http://www.w3.org/2001/XMLSchema">
    <element name="echoDocument" type="xsd:anyType" />
    </schema>
    - <schematargetNamespace="http://gdcwf215:8080/axis/services/MessageServiceDoc" xmlns="http://www.w3.org/2001/XMLSchema">
    <element name="echoDocumentReturn" type="xsd:anyType" />
    </schema>
    </wsdl:types>
    - <wsdl:message name="echoDocumentRequest">
    <wsdl:part element="tns1:echoDocument" name="part" />
    </wsdl:message>
    - <wsdl:message name="echoDocumentResponse">
    <wsdl:part element="impl:echoDocumentReturn"name="echoDocumentReturn" />
    </wsdl:message>
    - <wsdl:portType name="MessageServiceDoc">
    - <wsdl:eek:peration name="echoDocument">
    <wsdl:input message="impl:echoDocumentRequest"name="echoDocumentRequest" />
    <wsdl:eek:utput message="impl:echoDocumentResponse"name="echoDocumentResponse" />
    </wsdl:eek:peration>
    </wsdl:portType>
    - <wsdl:binding name="MessageServiceDocSoapBinding"type="impl:MessageServiceDoc">
    <wsdlsoap:binding style="document"transport="http://schemas.xmlsoap.org/soap/http" />
    - <wsdl:eek:peration name="echoDocument">
    <wsdlsoap:eek:peration soapAction="" />
    - <wsdl:input name="echoDocumentRequest">
    <wsdlsoap:body namespace="http://message.samples" use="literal"/>
    </wsdl:input>
    - <wsdl:eek:utput name="echoDocumentResponse">
    <wsdlsoap:bodynamespace="http://gdcwf215:8080/axis/services/MessageServiceDoc"use="literal" />
    </wsdl:eek:utput>
    </wsdl:eek:peration>
    </wsdl:binding>
    - <wsdl:service name="MessageServiceDocService">
    - <wsdl:port binding="impl:MessageServiceDocSoapBinding"name="MessageServiceDoc">
    <wsdlsoap:addresslocation="http://gdcwf215:8080/axis/services/MessageServiceDoc"/>
    </wsdl:port>
    </wsdl:service>
    </wsdl:definitions>
    ==================================
    VB.net proxy code is
    =============================
    Imports System
    Imports System.ComponentModel
    Imports System.Diagnostics
    Imports System.Web.Services
    Imports System.Web.Services.Protocols
    Imports System.Xml.Serialization

    '
    'This source code was auto-generated by Microsoft.VSDesigner,Version 1.1.4322.2032.
    '
    Namespace gdcwf215

    '<remarks/>
    <System.Diagnostics.DebuggerStepThroughAttribute(), _
    System.ComponentModel.DesignerCategoryAttribute("code"), _
    System.Web.Services.WebServiceBindingAttribute(Name:="MessageServiceDocSoapBinding",[Namespace]:="http://localhost:8082/axis/services/MessageServiceDoc")> _
    Public Class MessageServiceDocService
    InheritsSystem.Web.Services.Protocols.SoapHttpClientProtocol

    '<remarks/>
    Public Sub New()
    MyBase.New
    Me.Url ="http://localhost:8082/axis/services/MessageServiceDoc"
    End Sub

    '<remarks/>
    <System.Web.Services.Protocols.SoapDocumentMethodAttribute("",Use:=System.Web.Services.Description.SoapBindingUse.Literal,ParameterStyle:=System.Web.Services.Protocols.SoapParameterStyle.Bare)> _
    Public FunctionechoDocument(<System.Xml.Serialization.XmlElement_u116?tribute("echoDocument", [Namespace]:="http://message.samples")>ByVal echoDocument1 As System.Xml.XmlDocument) As<System.Xml.Serialization.XmlElementAttribute("echoDocumentReturn",[Namespace]:="http://localhost:8082/axis/services/MessageServiceDoc")> Object
    Dim results() As Object = Me.Invoke("echoDocument",New Object() {echoDocument1})
    Return CType(results(0), Object)
    End Function

    '<remarks/>
    Public Function BeginechoDocument(ByVal echoDocument1 AsObject, ByVal callback As System.AsyncCallback, ByVal asyncStateAs Object) As System.IAsyncResult
    Return Me.BeginInvoke("echoDocument", New Object(){echoDocument1}, callback, asyncState)
    End Function

    '<remarks/>
    Public Function EndechoDocument(ByVal asyncResult AsSystem.IAsyncResult) As Object
    Dim results() As Object = Me.EndInvoke(asyncResult)
    Return CType(results(0), Object)
    End Function
    End Class
    End Namespace
    ===========================================
    Vb.net client code
    Dim proxy As New gdcwf215.MessageServiceDocService
    Dim xmldoc As New Xml.XmlDocument
    Dim xmldoc1 As New Xml.XmlDocument

    Try
    xmldoc.LoadXml("<ParameterRequest><PriMod><Name>NAROE</Name><ModelUser>500700656</ModelUser></PriMod></ParameterRequest>")
    xmldoc1 = proxy.echoDocument(xmldoc)
    TextBox2.Text = xmldoc1.InnerXml
    Catch ex As Exception
    TextBox2.Text = ex.Message
    End Try


    Thanks in advance

    --------------------------------
    From: chandra kantha

    -----------------------
    Posted by a user from .NET 247 (http://www.dotnet247.com/)

    <Id>34/TsKuuNES7daPsSNFpaw==</Id>
    chandra kantha via .NET 247, Mar 29, 2005
    #1
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