/// <summary>
/// 通过实现 System.Web.IHttpHandler 接口的自定义 HttpHandler 启用 HTTP Web 请求的处理。
/// </summary>
/// <param name="context">它提供对用于为 HTTP 请求提供服务的内部服务器对象（如 Request、Response、Session和 Server）的引用。</param>
public void ProcessRequest(HttpContext context)
{
WebRequestDecoder webRequestDecoder = WebRequestDecoder.CreateInstance(context);
if (webRequestDecoder == null)
{
webRequestDecoder = new SimpleUrlDecoder(context);
}
string logicalMethod = webRequestDecoder.LogicalMethod;
ResponseAnnotationAttribute methodAnnotation = this.GetMethodAnnotation(logicalMethod);
WebResponseEncoder webResponseEncoder = WebResponseEncoder.CreateInstance(context, methodAnnotation.ResponseFormat);
if (webResponseEncoder == null)
{
webResponseEncoder = new JQueryScriptEncoder(context);
}
try
{
this.Pre_Invoke(context);
object srcObj = this.InvokeMethod(logicalMethod, webRequestDecoder.Deserialize());
webResponseEncoder.Write(srcObj);
}
catch (Exception ex)
{
string message = (ex.InnerException == null) ? ex.Message : ex.InnerException.Message;
this.ResponseException(context, message, webResponseEncoder);
}
WebAjaxHandler.InitializeCachePolicy(context, methodAnnotation);
}
/// <summary>
/// 创建响编码器
/// </summary>
/// <param name="context">当前上下文</param>
/// <param name="format">类型格式</param>
/// <returns>结果</returns>
public static WebResponseEncoder CreateInstance(HttpContext context, ResponseFormat format)
{
WebResponseEncoder result;
switch (format)
{
case ResponseFormat.JSON:
result = new JsonEncoder(context);
break;
case ResponseFormat.HTML:
result = new HtmlEncoder(context);
break;
case ResponseFormat.XML:
result = new XmlEncoder(context);
break;
case ResponseFormat.JAVASCRIPT:
result = new JQueryScriptEncoder(context);
break;
default:
result = new MiscEncoder(context);
break;
}
return(result);
}