54 lines
1.4 KiB
C#
54 lines
1.4 KiB
C#
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using System;
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using System.Collections.Generic;
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using System.Web;
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using System.Web.Services;
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using System.Web.SessionState;
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using System.Drawing.Imaging;
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namespace FineUIPro.Web.Captcha
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{
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/// <summary>
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/// 生成验证码图片
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/// </summary>
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[WebService(Namespace = "http://tempuri.org/")]
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[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
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public class captcha : IHttpHandler, IReadOnlySessionState
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{
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public void ProcessRequest(HttpContext context)
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{
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int width = 200;
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int height = 30;
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try
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{
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width = Convert.ToInt32(context.Request.QueryString["w"]);
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height = Convert.ToInt32(context.Request.QueryString["h"]);
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}
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catch (Exception)
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{
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// Nothing
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}
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// 从 Session 中读取验证码，并创建图片
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CaptchaImage.CaptchaImage ci = new CaptchaImage.CaptchaImage(context.Session["CaptchaImageText"].ToString(), width, height, "Consolas");
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// 输出图片
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context.Response.Clear();
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context.Response.ContentType = "image/jpeg";
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ci.Image.Save(context.Response.OutputStream, ImageFormat.Jpeg);
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ci.Dispose();
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}
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public bool IsReusable
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{
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get
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{
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return false;
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}
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}
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}
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}
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