public void ProcessRequest(HttpContext context)
{
int width = 200;
int height = 30;
try
{
width = Convert.ToInt32(context.Request.QueryString["w"]);
height = Convert.ToInt32(context.Request.QueryString["h"]);
}
catch (Exception)
{
// Nothing
}
// 从 Session 中读取验证码，并创建图片
CaptchaImage.CaptchaImage ci = new CaptchaImage.CaptchaImage(context.Session["CaptchaImageText"].ToString(), width, height, "Consolas");
// 输出图片
context.Response.Clear();
context.Response.ContentType = "image/jpeg";
ci.Image.Save(context.Response.OutputStream, ImageFormat.Jpeg);
ci.Dispose();
}
public void ProcessRequest(HttpContext context)
{
int width = 200;
int height = 30;
try
{
width = Convert.ToInt32(context.Request.QueryString["w"]);
height = Convert.ToInt32(context.Request.QueryString["h"]);
}
catch (Exception)
{
// Nothing
}
// 从 Session 中读取验证码，并创建图片
CaptchaImage.CaptchaImage ci = new CaptchaImage.CaptchaImage(context.Session["CaptchaImageText"].ToString(), width, height, "Consolas");
// 输出图片
context.Response.Clear();
context.Response.ContentType = "image/jpeg";
ci.Image.Save(context.Response.OutputStream, ImageFormat.Jpeg);
ci.Dispose();
}
// 返回验证图片
public ActionResult CaptchaImage(int w = 200, int h = 300)
{
byte[] imageBytes;
// 从 Session 中读取验证码，并创建图片
using (CaptchaImage.CaptchaImage ci = new CaptchaImage.CaptchaImage(Session["CaptchaImageText"].ToString(), w, h, "Consolas"))
{
using (MemoryStream ms = new MemoryStream())
{
ci.Image.Save(ms, ImageFormat.Jpeg);
imageBytes = ms.ToArray();
}
}
return(File(imageBytes, "image/jpeg"));
}
public void ValidateCode()
{
int width = 100;
int height = 26;
try
{
width = Convert.ToInt32(Request.QueryString["w"]);
height = Convert.ToInt32(Request.QueryString["h"]);
}
catch (Exception)
{
// Nothing
}
try
{
string checkCode = GenerateRandomCode();
Session["HHCaptchaImageText"] = checkCode;
// 从 Session 中读取验证码，并创建图片
// HH.Common.CaptchaImage ci = new HH.Common.CaptchaImage(checkCode, width, height, "Consolas");
CaptchaImage.CaptchaImage ci = new CaptchaImage.CaptchaImage(checkCode, width, height, "Consolas");
// 输出图片
Response.Clear();
Response.ContentType = "image/jpeg";
ci.Image.Save(Response.OutputStream, ImageFormat.Jpeg);
ci.Dispose();
Response.End();
}
catch (Exception ee)
{
string ss = ee.Message;
Response.ContentType = "text/plain";
Response.Write("请求错误");
return;
}
}
