Question

如何设置webapi返回json或jsonp

Answer 1

ing System.Net;
using System.Net.Http.Formatting;
using System.Net.Http.Headers;
using System.Threading.Tasks;
using System.Web;
using System.Net.Http;
using Newtonsoft.Json.Converters;
using System.Web.Http;

namespace Westwind.Web.WebApi
{

/// <summary>
/// Handles JsonP requests when requests are fired with text/javascript
/// </summary>
public class JsonpFormatter : JsonMediaTypeFormatter
{

public JsonpFormatter()
{
SupportedMediaTypes.Add(new MediaTypeHeaderValue("application/json"));
SupportedMediaTypes.Add(new MediaTypeHeaderValue("text/javascript"));

JsonpParameterName = "callback";
}

/// <summary>
/// Name of the query string parameter to look for
/// the jsonp function name
/// </summary>
public string JsonpParameterName {get; set; }

/// <summary>
/// Captured name of the Jsonp function that the JSON call
/// is wrapped in. Set in GetPerRequestFormatter Instance
/// </summary>
private string JsonpCallbackFunction;