One of the WCF Service-Oriented Application series: Hello WCF

Windows Communication Foundation is a SOA architecture on the Microsoft platform. It is used to build distributed and interactive applications.Program. It unifies asmx,. Net remoting, And the development model of enterprise services. It provides a single programming model for various applications, such as configuration-driven protocol selection, message format, and process allocation.

Development Environment: Visual Studio 2010 + Net Framework 4.0.

In this chapter, we use a simple demo to create a WCF program.
1. Open vs2010, select create WCF program in C # language, select WCF Service library, change solution name to hellowcf and project name to helloservicelibrary, and click OK.
2. Delete the iservice1.cs and services1.cs files generated in the helloservicelibrary project.
3. Create an ihellowcf interface file,CodeAs follows:

  //Operationcontract is a service contract
[Servicecontract]
Public InterfaceIhellowcf
{
//Operationcontract is a method contract
[Operationcontract]
StringGetmessage (StringMSG );
}
 

 

4. Create a hellowcf file with the following code:

    Public     Class  Hellowcf: ihellowcf
{
  Public     String  Getmessage (  String  MSG)
{
  Return    String  . Format (  "  The server received ed message is: {0}  "  , MSG );
}
}
 

 

5. Modify the app. config file in helloservicelibrary:
Modify the service name to <service name = "helloservicelibrary. hellowcf">
Modify the client contract to <endpoint address = "" binding = "wshttpbinding" Contract = "helloservicelibrary. ihellowcf">
Modify the service address to <add baseaddress = "http: // localhost: 8732/design_time_addresses/helloservicelibrary/hellowcf/"/>

 

The configuration is as follows:

  <?  XML version  =  "  1.0  "  Encoding  =  "  UTF-8  "     ?>  
  < Configuration  >  

  <  System. Web  >  
  <  Compilation debug  =  "  True  "     />  
  </ System. Web  >  
  <! --  When deploying the service library project, the content of the config file must be added to the host  '  S  
  App. config file. system. configuration does not support config files  For  Libraries.  -->  
  < System. servicemodel  >  
  <  Services  >  
  <  Service name  =  "  Helloservicelibrary. hellowcf  "  >  
  <  Endpoint address =  ""  Binding  =  "  Wshttpbinding  "  Contract  =  "  Helloservicelibrary. ihellowcf  "  >  
  <  Identity  > 
  <  DNS Value  =  "  Localhost  "     />  
  </  Identity  >  
  </  Endpoint  > 
  <  Endpoint address  =  "  MEX  "  Binding  =  "  Mexico httpbinding  "  Contract  =  "  Imetadataexchange  "    />  
  <  Host  >  
  <  Baseaddresses  >  
  <  Add baseaddress  =  "  Http: // localhost: 8732/design_time_addresses/helloservicelibrary/hellowcf/ "     />  
  </  Baseaddresses  >  
  </  Host  >  
  </  Service  >  
  </ Services  >  
  <  Behaviors  >  
  <  Servicebehaviors  >  
  <  Behavior  >  
  <! -- To avoid disclosing metadata information,
  Set  The value below  False  And remove the metadata endpoint above before deployment  -->  
  <  Servicemetadata httpgetenabled  =  "  True  "  />  
 <! --  To receive exception details  In  Faults  For  Debugging purposes,
  Set  The value below  True  . Set  False  Before deployment
To avoid disclosing exception information  -->  
  < Servicedebug includeexceptiondetailinfaults  =  "  False  "     />  
  </  Behavior  >  
  </  Servicebehaviors  >  
  </ Behaviors  >  
  </  System. servicemodel  >  

  </  Configuration  >  
 

 

6. Create a console application client, add a service reference, and change the namespace to helloservicelibrary.

7. Add code to the main function of the program class.

Code

    Static     Void  Main (  String  [] ARGs)
{
Console. writeline (  "  ------------------ Hellowcfclient begin ------------------  "  );
Helloservicelibrary. hellowcfclient Client  =    New  Helloservicelibrary. hellowcfclient ();

Console. writeline (  "  The client sent message is: Hello WCF  "  );
Console. writeline (client. getmessage (  "  Hello WCF  "  ));

Client. Close ();

Console. writeline (  "  ------------------ Hellowcfclient end ------------------ "  );
Console. Readline ();
} 

 

8. Run the debugging program F5. On the console, we will see the result returned by the client calling the WCF server.

 
  ------------------Hellowcfclient begin------------------
The client sent messageIs: Hello WCF
The server received ed messageIs: Hello WCF
------------------Hellowcfclient end------------------
 

 

So far, a simple WCF application has been created. The following chapter describes the Contract Design of WCF in detail.

Click to download the demo.

 

 
  Author: Xinhai julan
Source: http://Xinhaijulan.cnblogs.com
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