后台代码如下:
public void ProcessRequest(HttpContext context)
{
      context.Response.ContentType = "application/json";
      HttpRequest request = context.Request;
      if (request.InputStream != null && request.InputStream.Length > 0)
      {
           StreamReader reader = new StreamReader(request.InputStream);
           string json = reader.ReadToEnd();
      //接下来就是使用Newtonsoft.Json解析json字符串
      //JsonConvert.DeserializeObject<CommonTableParam>(json);
      //然后就可以使用前台传给后台的Json数据了
   }
}
 
前端代码如下:
function extendAjaxParam(newSrc) {
    var src = {
        type: "post",
        dataType: "json",
        contentType: "application/json;charset=utf-8",
        error: function(err) {
            alert(err.responseText);
        }
    }
    return $.extend({},
    src, newSrc);
}
$.ajax(extendAjaxParam({
    url: 自定义的url,
    //
    data: JSON.stringify({
        "id": id,
        "name": name
    }),
    success: function(data) {
}
}));