protected void Page_Load(object sender, EventArgs e)
{
/**
* 对控件给商户APP返回的应答信息验签，前段请直接把string型的json串post上来
*/
StreamReader reader = new StreamReader(Request.InputStream);
string data = reader.ReadToEnd();
Response.Write(AcpService.ValidateAppResponse(data, Encoding.UTF8)?"true":"false");
}