asp.net - WebAPI to Return XML

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asp.net - WebAPI to Return XML

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

asp.net - WebAPI to Return XML

I'm wanting my WEB API method to return an XML object back to the calling application. Currently it's just returning the XML as a string object. Is this a no no? If so how do you tell the webapi get method that it's returning an object of type XML?

Thanks

Edit: An example of the Get method:

[AcceptVerbs("GET")]
public HttpResponseMessage Get(int tenantID, string dataType, string ActionName)
{
   List<string> SQLResult = MyWebSite_DataProvidor.DB.spReturnXMLData
            ("SELECT * FROM vwContactListing FOR XML AUTO, ELEMENTS").ToList();
   string AllResults = "";
   for (int i = 0; i < SQLResult.Count - 1; i++)
   {
       AllResults += SQLResult[i];
   }
    string sSyncData = "<?xml version="1.0"?> " + AllResults;
    HttpResponseMessage response = new HttpResponseMessage();
    response.Content = new StringContent(sSyncData);
    return response;          
}

Its a bit hacky because im still at the prototyping stage. Will refactor when i can prove its doable.

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1 Answer

深蓝 · Answer 1 · 2021-10-16T23:30:26+0000

If you don't want the controller to decide the return object type, you should set your method return type as System.Net.Http.HttpResponseMessage and use the below code to return the XML.

public HttpResponseMessage Authenticate()
{
  //process the request 
  .........

  string XML="<note><body>Message content</body></note>";
  return new HttpResponseMessage() 
  { 
    Content = new StringContent(XML, Encoding.UTF8, "application/xml") 
  };
}

This is the quickest way to always return XML from Web API.

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