/// <summary>
/// 验证码
/// </summary>
/// <returns></returns>
public ActionResult VerifyCode()
{
string vcode = CaptchaHelper.CreateRandomCode(4);
SessionHelper.Set("vcode", vcode);
return(File(CaptchaHelper.DrawImage(vcode), @"image/jpeg"));
}
public ActionResult Vcode()
{
var code = CaptchaHelper.CreateRandomCode(4);
Session["vcode"] = code;
var img = CaptchaHelper.DrawImage(code, 20, background: Color.White);
return(File(img, "Image/jpeg"));
}
public void ProcessRequest(HttpContext context)
{
string vcode = CaptchaHelper.CreateRandomCode(4);
context.Session["img_vcode"] = vcode;
byte[] bs = CaptchaHelper.DrawImage(vcode, 20, Color.White);
context.Response.ContentType = "image/gif";
context.Response.BinaryWrite(bs);
}
public void ProcessRequest(HttpContext context)
{
// 画布 画笔 和 素材
var vcode = CaptchaHelper.CreateRandomCode(4);
context.Session["user_vcode"] = vcode;
var img = CaptchaHelper.DrawImage(vcode, 20, Color.White);
context.Response.ContentType = "image/gif";
context.Response.BinaryWrite(img);
}
public void ProcessRequest(HttpContext context)
{
//context.Response.ContentType = "text/plain";
//context.Response.Write("Hello World");
var code = CaptchaHelper.CreateRandomCode(4);
context.Session["vcode"] = code;
var img = CaptchaHelper.DrawImage(code, 20, background: Color.White);
context.Response.ContentType = "image/gif";
context.Response.BinaryWrite(img);
}
public ActionResult GetVcode(string codelength, string codesize)
{
int length;
if (!int.TryParse(codelength, out length))
{
return(Content(JsonReturn(Enum_ReturnStatus.失败, "验证码长度参数错误", null)));
}
float size;
if (!float.TryParse(codesize, out size))
{
return(Content(JsonReturn(Enum_ReturnStatus.失败, "验证码字体大小参数错误", null)));
}
var code = CaptchaHelper.CreateRandomCode(length);
Session["zhancaiw_vcode"] = code;
var img = CaptchaHelper.DrawImage(code, size, background: Color.White);
return(File(img, "Image/jpeg"));
}
