ECT 7120 Distributed Systems and Software

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ECT 7120 Distributed Systems and Software

• Web Services and .NET Demonstration

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Component needed

• IIS (Internet Information Services, latest
  version 6.0)
• .NET Framework (latest version 1.2)
• Visual Studio .NET 2005

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1. Creating Web Services with .NET

• Step1 click New ? Web Site ? ASP .NET Web
  Service, choose the language you want. (Visual
  C, VB, Visual J...)
• Step2 Right click Service1.asmx and select View
  Code to enter the code design window
• Step3 Use ltWebMethod()gt to add new function
  (place Public before the function procedure)
• WebMethod
• public int Add(int x, int y)
• int result
• result x y
• return result

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Create Web Services
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Add Method in Web Services
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Creating Web Services with .NET

• Step4 click start to execute the web services
• A browser will appear with the Add method
  displayed and hyperlinked
• Click Add to open another browser to perform the
  add function
• Type in two values (X and Y) then click invoke to
  get the result
• The result will be returned in XML format
• Students can try to browse the web service in the
  server
• http//137.189.89.81/demo/Service.asmx

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Execute the Web Services
http//137.189.89.81/demo/Service.asmx
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Execute the Web Services
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View XML Result in Browser
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2. Calling Web Services with .NET

• From local host
• Create a new ASP .NET Web Application (say
  WebApplication1)
• Right click App_WebReferences and select Add
  Web Reference
• Type in the appropriate path where the Web
  Service is located
• http//137.189.89.81/demo/Service.asmx
• Create a Web form interface
• In aspx.cs
• protected void Button1_Click(object sender,
  EventArgs e)
• if ((this.tbX.Text ! "")
  (this.tbY.Text ! ""))
• Addition.Service service new
  Addition.Service()
• this.lbResult.Text
  service.Add(int.Parse(this.tbX.Text),
  int.Parse(this.tbY.Text)).ToString()

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Calling Web Services -- C
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Calling Web Services -- .aspx
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Calling Web Services -- result
http//137.189.89.81/WebSite2/Default.aspx
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3. Application Sample with C

• Create a new Visual C Projects, says Window
  Form Application.
• Right click the project name and select Add Web
  Reference
• Type in the appropriate path where the Web
  Service is located
• http//137.189.89.81/demo/Service.asmx
• Create a Dialog-based interface
• Code
• AddService ws
• int result
• result ws.Add (1, 2)
• SystemWindowsFormsMessageBoxShow
  (SystemStringFormat("0", result))

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Application Sample with C
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Application Sample with C
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Application Sample with C
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(No Transcript)
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Application Sample with C