public class qr
{
public qr()
{
//
//TODO: 在此处添加构造函数逻辑
//
}
/*
bg 背景颜色 bg=颜色代码，例如：bg=ffffff
fg 前景颜色 fg=颜色代码，例如：fg=cc0000
gc 渐变颜色 gc=颜色代码，例如：gc=cc00000
el 纠错等级 el可用值：hqml，例如：el=h
w 尺寸大小 w=数值（像素），例如：w=300
m 静区（外边距） m=数值（像素），例如：m=30
pt 定位点颜色（外框） pt=颜色代码，例如：pt=00ff00
inpt 定位点颜色（内点） inpt=颜色代码，例如：inpt=000000
logo logo图片 logo=图片地址，例如：logo=http://www.xxx.cn/logo.png
*/
public const string api = "http://qr.liantu.com/api.php";
public static string GenerationCard(string name, string tel, string email, string logo = "")
{
string RequestUrl = api;
string macard = "MECARD:N:" + name + ";TEL:" + tel + ";EMATL；" + email + ";";
RequestUrl += "?text=" + macard;
if (logo != "")
{
RequestUrl += "&logo=" + logo;
}
return RequestUrl;
}
}
生成二维码后台
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Net;
using System.IO;
using System.Drawing.Imaging;
public partial class creatCode : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
try
{
string url = qr.GenerationCard(Request["name"], Request["tel"], Request["email"]);
WebRequest wreq = WebRequest.Create(url);
HttpWebResponse wresp = (HttpWebResponse)wreq.GetResponse();
Stream s = wresp.GetResponseStream();
System.IO.MemoryStream ms = new MemoryStream();
System.Drawing.Image img = System.Drawing.Image.FromStream(s);
img.Save(ms, ImageFormat.Gif);
Response.ClearContent();
Response.ContentType = "image/Gif";
Response.BinaryWrite(ms.ToArray());
img.Dispose();
s.Dispose();
}
catch (Exception ex)
{
throw;
}
}
}
}
前台页面
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="creatCode.aspx.cs" Inherits="creatCode" %>
调用页面
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>生成验证码(演示)</title>
</head>
<body>
<form action="creatCode.aspx" id="form1">
<label for="txtName">
姓名：</label>
<input type="text" name="txtName" /><br />
<label for="tel">
电话：
</label>
<input type="text" name="tel" /><br />
<label for="email">
邮箱：
</label>
<input type="text" name="email" /><br />
<input type="submit" name="submit" value="生成验证码" />
</form>
<script type="text/javascript">
form1.submit.onclick = function () {
var name = form1.name.value;
var tel = form1.tel.value;
var email = form1.email.value;
window.location.href = "/creatCode.aspx?name=" + name + "&tel=" + tel + "&email=" + email;
}
</script>
</body>
</html>