使用一般处理程序生成 JSON

using System;  
using System.Web;  
 
public class Result  
{  
    public int percent { get; set; }  
}  
 
public class JsonHandler : IHttpHandler {  
 
    public void ProcessRequest (HttpContext context) {  
        context.Response.ContentType = "application/json";  
 
        context.Response.Cache.SetCacheability(HttpCacheability.NoCache);  
 
        System.Type type = typeof( Result );  
        System.Runtime.Serialization.Json.DataContractJsonSerializer serializer = new System.Runtime.Serialization.Json.DataContractJsonSerializer(type);  
 
        Result result = new Result();  
        result.percent = 80;  
 
        serializer.WriteObject(context.Response.OutputStream, result);  
 
    }  
 
    public bool IsReusable {  
        get {  
            return false;  
        }  
    }  
}