/// <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>
/// 输出错误消息
/// </summary>
/// <param name="context">当前上下文</param>
/// <param name="message">消息</param>
/// <param name="encoder">响应</param>
private void ResponseException(HttpContext context, string message, WebResponseEncoder encoder)
{
HttpResponse response = context.Response;
response.ClearContent();
response.StatusCode = 300;
encoder.Write(message);
}
