/// <summary>
/// 将数据写入页面流
/// </summary>
/// <param name="param"></param>
private void WriteToBuffer(AjaxCallbackParam param)
{
try
{
info.CurrentPage.Response.Clear();
if (param != null)
{
info.CurrentPage.Response.Write(SerializationManager.SerializeJson(param));
}
else
{
info.CurrentPage.Response.ContentType = "image/gif";
}
info.CurrentPage.Response.Cache.SetNoStore();
info.CurrentPage.Response.Flush();
//info.CurrentPage.Response.End();
//完成请求
info.CurrentPage.Response.Close();
HttpContext.Current.ApplicationInstance.CompleteRequest();
}
catch
{
//不处理异常
}
}
private void WriteErrorMessage(string message)
{
AjaxCallbackParam param = new AjaxCallbackParam(message);
param.Success = false;
WriteToBuffer(param);
}
/// <summary>
/// 发送请求
/// </summary>
public void SendRequest()
{
try
{
bool AjaxProcess = WebHelper.GetRequestParam <bool>(info.CurrentPage.Request, "X-Ajax-Process", false);
if (!AjaxProcess)
{
WebHelper.RegisterPageCssFile(info.CurrentPage, info.CurrentPage.ClientScript.GetWebResourceUrl(typeof(AjaxPage), "MySoft.Web.Resources.pager.css"));
//需要启用模板加载
if (info.EnableAjaxTemplate)
{
WebHelper.RegisterPageJsFile(info.CurrentPage, info.CurrentPage.ClientScript.GetWebResourceUrl(typeof(AjaxPage), "MySoft.Web.Resources.template.js"));
}
WebHelper.RegisterPageForAjax(info.CurrentPage, info.CurrentPage.Request.Path);
}
else
{
var callbackParams = GetCallbackParams();
//只有启用Ajax，才调用初始化方法
if (info.CurrentPage is IAjaxInitHandler)
{
(info.CurrentPage as IAjaxInitHandler).OnAjaxInit(callbackParams);
}
if (info.CurrentPage is IAjaxProcessHandler)
{
(info.CurrentPage as IAjaxProcessHandler).OnAjaxProcess(callbackParams);
}
bool AjaxRegister = WebHelper.GetRequestParam <bool>(info.CurrentPage.Request, "X-Ajax-Register", false);
bool AjaxRequest = WebHelper.GetRequestParam <bool>(info.CurrentPage.Request, "X-Ajax-Request", false);
bool AjaxLoad = WebHelper.GetRequestParam <bool>(info.CurrentPage.Request, "X-Ajax-Load", false);
string AjaxKey = WebHelper.GetRequestParam <string>(info.CurrentPage.Request, "X-Ajax-Key", Guid.NewGuid().ToString());
if (AjaxRegister)
{
//将value写入Response流
WriteAjaxMethods(info.CurrentPage.GetType());
}
else if (AjaxRequest)
{
string AjaxMethodName = WebHelper.GetRequestParam <string>(info.CurrentPage.Request, "X-Ajax-Method", null);
if (CheckHeader(AjaxKey))
{
AjaxCallbackParam value = InvokeMethod(info.CurrentPage, AjaxMethodName);
//将value写入Response流
WriteToBuffer(value);
}
else
{
throw new AjaxException("Method \"" + AjaxMethodName + "\" Is Invoke Error！");
}
}
else if (AjaxLoad)
{
string AjaxControlPath = WebHelper.GetRequestParam <string>(info.CurrentPage.Request, "X-Ajax-Path", null);
bool UseAjaxTemplate = WebHelper.GetRequestParam <bool>(info.CurrentPage.Request, "X-Ajax-Template", false);
if (CheckHeader(AjaxKey))
{
AjaxCallbackParam param = LoadAjaxControl(AjaxControlPath, UseAjaxTemplate);
//将param写入Response流
WriteToBuffer(param);
}
else
{
throw new AjaxException("Control \"" + AjaxControlPath + "\" Is Load Error！");
}
}
}
}
catch (ThreadAbortException) { }
catch (AjaxException ex)
{
WriteErrorMessage("AjaxError: " + ex.Message);
}
catch (BusinessException ex)
{
WriteErrorMessage(string.Format("[{0}]{1}", ex.Code, ex.Message));
}
catch (Exception ex)
{
WriteErrorMessage(ex.Message);
}
}
