从Web Api控制器返回XML

Question

How to specify return xml from web api controller?In one browser data opens as XML,in other as JSON.

Here is my action:

    [HttpGet]
    public IEnumerable<MagazineMeta> GetLastUploadPdfMeta(int count)
    {
       List<MagazineMeta> metas = _metaRepository
                 .GetAll()
                 .OrderBy(e => e.TimeAdd)
                 .Take(count)
                 .ToList();

       return metas;
    }

Answer 1

Add these 2 lines to the end of Application_Start in Global.asax.cs:

GlobalConfiguration.Configuration.Formatters.Clear();
GlobalConfiguration.Configuration.Formatters.Add(new System.Net.Http.Formatting.XmlMediaTypeFormatter());

EDIT: As @YishaiGalatzer pointed out, this is rather quick & dirty workaround to achieve what was originally asked in question. To get desired response format include appropriate Accept header in request (in context of this question, "application/xml")

Answer 2

要使响应序列化，您还需要一行

GlobalConfiguration.Configuration.Formatters.XmlFormatter.UseXmlSerializer = true;

Answer 3

And for others who want to enforce json instead, call this :

GlobalConfiguration.Configuration.Formatters.Clear();
GlobalConfiguration.Configuration.Formatters.Add(new System.Net.Http.Formatting.JsonMediaTypeFormatter());