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Exploring SOAP on the Microsoft .NET Platform: A Comprehensive Guide

This presentation provides an in-depth overview of SOAP and WSDL within the Microsoft .NET framework, contrasting it with Java's AXIS project. It covers the capabilities of Microsoft Internet Information Server (IIS) for hosting web services, installation guidelines for .NET Framework SDK and IIS, and the development of web applications using Visual Studio .NET. The session includes practical demonstrations in C# for crafting a HelloWorld web service and employing automated tools for generating proxy stubs. Ideal for developers looking to understand web services in the .NET environment.

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Exploring SOAP on the Microsoft .NET Platform: A Comprehensive Guide

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Presentation Transcript

  1. Presentation 10 SOAP on the Microsoft Platform (.NET)

  2. Outline • You have already been introduced to SOAP, WSDL & UDDI on the JAVA platform using AXIS • Now we will take a look at the MS . NET platforms SOAP capabilities • Luckily – SOAP & WSDL are well standardized – so we do not need to look at these again • Instead we will: • Show the counterpart of the AXIS project in .NET - IIS • Show the alternatives to JAVA development – using the tools from Microsoft Visual Studio .NET

  3. Apache Tomcat vs. Microsoft Internet Information Server • Apache Tomcat with AXIS & J2SE Java SDK • Works on: • Windows, UNIX, LINUX • Open source Can be compiled to any platform (with some work) • Server listening for events: • HTTP on port 8080 (optional) • Executes Servlets/JSP • AXIS is an embedded project within the Tomcat environment but works with most J2EE compliant AS • Microsoft Internet Information Server with the .NET Framework SDK (ASP.NET) • Works on: • Only Windows • Server listening for events: • HTTP on port 80 (optional) • Executes Web resources – ASP.NET, Web services, Web forms (resulting in client side HTML ) • Tightly integrated with the Visual Studio .NET – for easy deployment & debugging Common code base – but only MS! Web Server MS Internet Information Server & the .NET Framework SDK (ASP.NET) (vs. Apache Tomcat, with AXIS & J2SE SDK) SOAP Client Java, C++, C#, Delphi, VB Application Web Forms C++ unman. SOAP over HTTP Web Service Managed code

  4. Web service enabling Windows • You need to: • Install .NET Framework SDK • Download from Microsoft (130 MB) • Install Internet Information Server • Enabled via the Control Panel • Visual Studio .NET • Already installed (7 or 7.1) • More detailed instructions will follow for the LAB exercise

  5. Not a Windows ASP.NET course • You will NOT be required to be an expert on .NET • You will be required to be knowledgeable about it • ASP.NET is a framework for Web enabling Windows code • Traditional HTML & DHTML – and Web services • Complete architecture

  6. Ressources for learning more • Feel free to learn more about ASP.NET: • Getting started with the .NET framework • http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpguide/html/cpcongettingstartedwithnetframework.asp • Link can be found at the course site • Books on the subject • Beginning .NET Web Services using C# by Joseph Bustos and Karli Watsom (WROK forlag) • More will be listed on the course site

  7. Making the HelloWorld application • Using Notepad ! • Using Microsoft Visual Studio .NET • First: • Install .NET Framework • Install IIS • Then: • Produce code • Manually for Notepad • Wizard for Visual Studio • Deploy in the IIS folder • \inetpub\wwwroot\ • As an .asmx file • Test the Webservice • Using the build in functionality • Write the Client – and all is well

  8. C# Notepad HelloWorld

  9. Deploy & Test

  10. Developing the Client application • Support for using Web services in an Visual Studio application • Stubs are automatically compiled by Visual Studio

  11. New Application & Add Web Reference

  12. Discover & bind the Web service

  13. Visual Studio produces a Proxy DLL Performed by Visual Studio tool: a DLL is generated (Web Service Proxy Generator), and a header file and a WSDL support document is made available

  14. Write the C++ code

  15. Try it out

  16. Piece of Cake – Now C#

  17. C# - coding the connection

  18. Heterogeneous system C# to Java // Hello World.Java public class HelloWorld { public HelloWorld() { } public String getHelloWorldMessage(String name) { return "Hello World to "+name; } } private void button1_Click(object sender, System.EventArgs e) { localhost.HelloWorldService hello = new localhost.HelloWorldService(); textBox1.Text = hello.getHelloWorldMessage("Stefan"); } Proxy DLL stub generated by VS Proxy DLL skeleton generated by AXIS

  19. Try it with C++ • WARNING: In VS7 there seems to be a bug! • Need to manually paste the WSDL file and compile the proxy stub DLL • This works fine in C# • No problem in VS7.1

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