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   在MVC3.0中建立JSONP专用ActionResult

 

      代码如下：

 

 

 

 public class JsonpResult : ActionResult 

     { 

        public T Obj { get; set; }

        public string CallbackName { get; set; } 

        public JsonpResult(T obj, string callback) 

        { 

             this.Obj = obj; 

            this.CallbackName = callback;

       }

public override void ExecuteResult(ControllerContext context)

         {

             var js = new System.Web.Script.Serialization.JavaScriptSerializer();

             var jsonp = this.CallbackName + "(" + js.Serialize(this.Obj) + ")";

         context.HttpContext.Response.ContentType = "application/json";

             context.HttpContext.Response.Write(jsonp);

         }

     }

 

JsonpResult 简单调用如下：

 

 

 public ActionResult AppLogOn(string UserName, string PassWord, string callback)

{ 

 return new JsonpResult