/// <summary>
/// 验证码
/// </summary>
/// <param name="id"></param>
/// <returns></returns>
public ActionResult GetCodeImg(double?id)
{
string code = new ValidataCode().GetCode(4);
Session["code"] = code;
Session.Timeout = 10;
byte[] img = new ValidataCode().CreateValidateGraphic(code);
return(File(img, @"img/jpeg"));
}
public ActionResult ShowCode(double?id)
{
ValidataCode valideataCode = new ValidataCode();
string strcode = valideataCode.getCode(4);
Session["code"] = strcode;
byte[] imgBytes = valideataCode.CreateValidateGraphic(strcode);
return(File(imgBytes, @"img/jpeg"));
}
public void ProcessRequest(HttpContext context)
{
context.Response.ContentType = "image/gif";
string code = ValidataCode.CreateRandomCode(4);
///验证码放入session
context.Session["vCode"] = code;
byte[] img = ValidataCode.DrawImage(code, 20, background: Color.White);
context.Response.BinaryWrite(img);
}