/// <summary>
/// 获取验证码图像流
/// </summary>
/// <returns></returns>
public static MemoryStream GetImageStream()
{
string checkCode = Character.RandomString("num", 4);
System.Web.HttpContext.Current.Session["verifyCode"] = checkCode;
return(VerifyCodeHelper.GetImageStream(checkCode, 100, 40, Color.White, 1));
}
/// <summary>
/// 获取验证码图像
/// </summary>
/// <param name="width"></param>
/// <param name="height"></param>
/// <param name="bgcolor"></param>
/// <param name="textcolor"></param>
public static void ResponseImage(int width, int height, Color bgcolor, int textcolor)
{
string checkCode = Character.RandomString("num", 4);
System.Web.HttpContext.Current.Session["verifyCode"] = checkCode;
using (MemoryStream ms = VerifyCodeHelper.GetImageStream(checkCode, 100, 40, Color.White, 1))
{
System.Web.HttpContext.Current.Response.ClearContent();
System.Web.HttpContext.Current.Response.ContentType = "image/Png";
System.Web.HttpContext.Current.Response.BinaryWrite(ms.ToArray());
}
}
/// <summary>
/// 获取验证码
/// </summary>
public static void ChangeCode()
{
string checkCode = Character.RandomString("num", 4);
System.Web.HttpContext.Current.Session["verifyCode"] = checkCode;
}
