private void btnEncode_Click_1(object sender, EventArgs e)
{
if (txtEncodeData.Text.Trim() == String.Empty)
{
MessageBox.Show("Data must not be empty.");
return;
}
QRCodeEncoder qrCodeEncoder = new QRCodeEncoder();
String encoding = cboEncoding.Text;
if (encoding == "Byte")
{
qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE;
}
else if (encoding == "AlphaNumeric")
{
qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.ALPHA_NUMERIC;
}
else if (encoding == "Numeric")
{
qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.NUMERIC;
}
try
{
int scale = Convert.ToInt16(txtSize.Text);
qrCodeEncoder.QRCodeScale = scale;
}
catch (Exception ex)
{
MessageBox.Show("Invalid size!");
return;
}
try
{
int version = Convert.ToInt16(cboVersion.Text);
qrCodeEncoder.QRCodeVersion = version;
}
catch (Exception ex)
{
MessageBox.Show("Invalid version !");
}
string errorCorrect = cboCorrectionLevel.Text;
if (errorCorrect == "L")
qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.L;
else if (errorCorrect == "M")
qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.M;
else if (errorCorrect == "Q")
qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.Q;
else if (errorCorrect == "H")
qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.H;
string data = txtEncodeData.Text;
var encodedData = qrCodeEncoder.Encode(data);
var qrImage = new QrImage();
Image image = qrImage.CreateImage(encodedData);
picEncode.Image = image;
}
public static Bitmap GetqrCode(int i, string content)
{
Bitmap bt;
string enCodeString = content;
QRCodeEncoder qrCodeEncoder = new QRCodeEncoder();
qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE;
qrCodeEncoder.QRCodeVersion = i;
qrCodeEncoder.QRCodeScale = 4;
qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.M;
bt = qrCodeEncoder.Encode(enCodeString, Encoding.UTF8);
return bt;
}
public Bitmap CreateImgCode(string htmlUrl, int size = 4)
{
//创建二维码生成类
QRCodeEncoder qrCodeEncoder = new QRCodeEncoder();
//设置编码模式
qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE;
//设置编码测量度
qrCodeEncoder.QRCodeScale = size;
//设置编码版本
qrCodeEncoder.QRCodeVersion = 7;
//设置编码错误纠正
qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.M;
//生成二维码图片
return qrCodeEncoder.Encode(CreateQRCode(htmlUrl));
}
public QRCode(string data, string title)
{
InitializeComponent();
textBox.Text = data;
Title = title;
var qrCodeEncoder = new QRCodeEncoder();
qrCodeEncoder.QRCodeScale = 16;
var image = qrCodeEncoder.Encode(data, Encoding.UTF8);
var imageSrc = System.Windows.Interop.Imaging.CreateBitmapSourceFromHBitmap(
image.GetHbitmap(),
IntPtr.Zero,
Int32Rect.Empty,
BitmapSizeOptions.FromWidthAndHeight(image.Width, image.Height));
imgBox.Source = imageSrc;
}
/// <summary>
/// 生成二维码，如果有Logo，则在二维码中添加Logo
/// </summary>
/// <param name="content"></param>
/// <returns></returns>
public Bitmap CreateQRCode(string content)
{
QRCodeEncoder qrEncoder = new QRCodeEncoder();
qrEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE;
qrEncoder.QRCodeScale = Convert.ToInt32(txtSize.Text);
qrEncoder.QRCodeVersion = Convert.ToInt32(cboVersion.SelectedValue);
qrEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.M;
try
{
Bitmap qrcode = qrEncoder.Encode(content, Encoding.UTF8);
if (!logoImagepath.Equals(string.Empty))
{
Graphics g = Graphics.FromImage(qrcode);
Bitmap bitmapLogo = new Bitmap(logoImagepath);
int logoSize = Convert.ToInt32(txtLogoSize.Text);
bitmapLogo = new Bitmap(bitmapLogo, new System.Drawing.Size(logoSize, logoSize));
PointF point = new PointF(qrcode.Width / 2 - logoSize / 2, qrcode.Height / 2 - logoSize / 2);
g.DrawImage(bitmapLogo, point);
}
return qrcode;
}
catch (IndexOutOfRangeException ex)
{
MessageBox.Show("超出当前二维码版本的容量上限，请选择更高的二维码版本！", "系统提示");
return new Bitmap(100, 100);
}
catch (Exception ex)
{
MessageBox.Show("生成二维码出错！", "系统提示");
return new Bitmap(100, 100);
}
}
/// <summary>
/// 生成二维码
/// </summary>
/// <param name="data">数据</param>
/// <param name="filePath">文件保存路径（绝对路径）</param>
/// <param name="hasLogo">二维码图标是否添加图片</param>
/// <param name="logoFilePath">图片的路径（绝对路径）</param>
/// <returns>true--成功；false--失败</returns>
public static bool CreateQRcode(string data, string filePath, bool hasLogo = false, string logoFilePath = "")
{
bool result = false;
QRCodeEncoder qrCodeEncoder = new QRCodeEncoder();
qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE;//二维码编码(Byte、AlphaNumeric、Numeric)
qrCodeEncoder.QRCodeScale = 50;//二维码尺寸(Version为0时，1：26x26，每加1宽和高各加25
qrCodeEncoder.QRCodeVersion = 10;//二维码密集度0-40
qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.M;//二维码纠错能力(L：7% M：15% Q：25% H：30%)
try
{
Image card = qrCodeEncoder.Encode(data, Encoding.UTF8);
using (FileStream fs = new FileStream(filePath, FileMode.OpenOrCreate, FileAccess.Write))
{
card.Save(fs, System.Drawing.Imaging.ImageFormat.Jpeg);
fs.Close();
}
if (hasLogo)
{
AddLogo(logoFilePath, card, filePath);
}
card.Dispose();
result = true;
}
catch (Exception ex)
{
result = false;
}
return result;
}
/*
*
* CREATE PROCEDURE [dbo].[ProcCustomPage]
(
@Table_Name varchar(5000), --表名
@Sign_Record varchar(50), --主键
@Filter_Condition varchar(1000), --筛选条件,不带where
@Page_Size int, --页大小
@Page_Index int, --页索引
@TaxisField varchar(1000), --排序字段
@Taxis_Sign int, --排序方式 1为 DESC, 0为 ASC
@Find_RecordList varchar(1000), --查找的字段
@Record_Count int --总记录数
)
AS
BEGIN
DECLARE @Start_Number int
DECLARE @End_Number int
DECLARE @TopN_Number int
DECLARE @sSQL varchar(8000)
if(@Find_RecordList='')
BEGIN
SELECT @Find_RecordList='*'
END
SELECT @Start_Number =(@Page_Index-1) * @Page_Size
IF @Start_Number<=0
SElECT @Start_Number=0
SELECT @End_Number=@Start_Number+@Page_Size
IF @End_Number>@Record_Count
SELECT @End_Number=@Record_Count
SELECT @TopN_Number=@End_Number-@Start_Number
IF @TopN_Number<=0
SELECT @TopN_Number=0
print @TopN_Number
print @Start_Number
print @End_Number
print @Record_Count
IF @TaxisField=''
begin
select @TaxisField=@Sign_Record
end
IF @Taxis_Sign=0
BEGIN
IF @Filter_Condition=''
BEGIN
SELECT @sSQL='SELECT '+@Find_RecordList+' FROM '+@Table_Name+'
WHERE '+@Sign_Record+' in (SELECT TOP '+CAST(@TopN_Number AS VARCHAR(10))+' '+@Sign_Record+' FROM '+@Table_Name+'
WHERE '+@Sign_Record+' in (SELECT TOP '+CAST(@End_Number AS VARCHAR(10))+' '+@Sign_Record+' FROM '+@Table_Name+'
ORDER BY '+@TaxisField+') order by '+@TaxisField+' DESC)order by '+@TaxisField
END
ELSE
BEGIN
SELECT @sSQL='SELECT '+@Find_RecordList+' FROM '+@Table_Name+'
WHERE '+@Sign_Record+' in (SELECT TOP '+CAST(@TopN_Number AS VARCHAR(10))+' '+@Sign_Record+' FROM '+@Table_Name+'
WHERE '+@Sign_Record+' in (SELECT TOP '+CAST(@End_Number AS VARCHAR(10))+' '+@Sign_Record+' FROM '+@Table_Name+'
WHERE '+@Filter_Condition+' ORDER BY '+@TaxisField+') and '+@Filter_Condition+' order by '+@TaxisField+' DESC) and '+@Filter_Condition+' order by '+@TaxisField
END
END
ELSE
BEGIN
IF @Filter_Condition=''
BEGIN
SELECT @sSQL='SELECT '+@Find_RecordList+' FROM '+@Table_Name+'
WHERE '+@Sign_Record+' in (SELECT TOP '+CAST(@TopN_Number AS VARCHAR(10))+' '+@Sign_Record+' FROM '+@Table_Name+'
WHERE '+@Sign_Record+' in (SELECT TOP '+CAST(@End_Number AS VARCHAR(10))+' '+@Sign_Record+' FROM '+@Table_Name+'
ORDER BY '+@TaxisField+' DESC) order by '+@TaxisField+')order by '+@TaxisField+' DESC'
END
ELSE
BEGIN
SELECT @sSQL='SELECT '+@Find_RecordList+' FROM '+@Table_Name+'
WHERE '+@Sign_Record+' in (SELECT TOP '+CAST(@TopN_Number AS VARCHAR(10))+' '+@Sign_Record+' FROM '+@Table_Name+'
WHERE '+@Sign_Record+' in (SELECT TOP '+CAST(@End_Number AS VARCHAR(10))+' '+@Sign_Record+' FROM '+@Table_Name+'
WHERE '+@Filter_Condition+' ORDER BY '+@TaxisField+' DESC) and '+@Filter_Condition+' order by '+@TaxisField+') and '+@Filter_Condition+' order by '+@TaxisField+' DESC'
END
END
EXEC (@sSQL)
IF @@ERROR<>0
RETURN -3
RETURN 0
END
PRINT @sSQL
GO
* */
#endregion
#region SQL2005 分页存储过程
/*
*
CREATE PROCEDURE [dbo].[GetRecordFromPage]
@SelectList VARCHAR(2000), --欲选择字段列表
@TableSource VARCHAR(100), --表名或视图表
@SearchCondition VARCHAR(2000), --查询条件
@OrderExpression VARCHAR(1000), --排序表达式
@PageIndex INT = 1, --页号,从0开始
@PageSize INT = 10 --页尺寸
AS
BEGIN
IF @SelectList IS NULL OR LTRIM(RTRIM(@SelectList)) = ''
BEGIN
SET @SelectList = '*'
END
PRINT @SelectList
SET @SearchCondition = ISNULL(@SearchCondition,'')
SET @SearchCondition = LTRIM(RTRIM(@SearchCondition))
IF @SearchCondition <> ''
BEGIN
IF UPPER(SUBSTRING(@SearchCondition,1,5)) <> 'WHERE'
BEGIN
SET @SearchCondition = 'WHERE ' + @SearchCondition
END
END
PRINT @SearchCondition
SET @OrderExpression = ISNULL(@OrderExpression,'')
SET @OrderExpression = LTRIM(RTRIM(@OrderExpression))
IF @OrderExpression <> ''
BEGIN
IF UPPER(SUBSTRING(@OrderExpression,1,5)) <> 'WHERE'
BEGIN
SET @OrderExpression = 'ORDER BY ' + @OrderExpression
END
END
PRINT @OrderExpression
IF @PageIndex IS NULL OR @PageIndex < 1
BEGIN
SET @PageIndex = 1
END
PRINT @PageIndex
IF @PageSize IS NULL OR @PageSize < 1
BEGIN
SET @PageSize = 10
END
PRINT @PageSize
DECLARE @SqlQuery VARCHAR(4000)
SET @SqlQuery='SELECT '+@SelectList+',RowNumber
FROM
(SELECT ' + @SelectList + ',ROW_NUMBER() OVER( '+ @OrderExpression +') AS RowNumber
FROM '+@TableSource+' '+ @SearchCondition +') AS RowNumberTableSource
WHERE RowNumber BETWEEN ' + CAST(((@PageIndex - 1)* @PageSize+1) AS VARCHAR)
+ ' AND ' +
CAST((@PageIndex * @PageSize) AS VARCHAR)
-- ORDER BY ' + @OrderExpression
PRINT @SqlQuery
SET NOCOUNT ON
EXECUTE(@SqlQuery)
SET NOCOUNT OFF
RETURN @@RowCount
END
**/
#endregion
#endregion
public static void create_two(string nr, string regno)
{
System.Drawing.Bitmap bt;
string enCodeString = nr;
ThoughtWorks.QRCode.Codec.QRCodeEncoder qrCodeEncoder = new ThoughtWorks.QRCode.Codec.QRCodeEncoder();
qrCodeEncoder.QRCodeScale = 15;
qrCodeEncoder.QRCodeVersion = 10;
bt = qrCodeEncoder.Encode(enCodeString, Encoding.UTF8);
//bt = qrCodeEncoder.Encode(enCodeString, Encoding.GetEncoding("gb18030"));
//string filename = string.Format(DateTime.Now.ToString(), regno) + ".jpg";
string filename = regno;
filename = filename.Replace(" ", "");
filename = filename.Replace(":", "");
filename = filename.Replace("-", "");
filename = filename.Replace(".", "");
HttpServerUtility su = HttpContext.Current.Server;
bt.Save(su.MapPath("../QRcode/") + filename + ".png");
}
private void GenerateQRCode()
{
try
{
var url = "http://" + Request.Url.Authority + "/Index.aspx?rid=" + this.ddlRestaurant.SelectedValue + "&tid=" + this.hTableId.Value;
var encoder = new QRCodeEncoder();
encoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE;
encoder.QRCodeScale = 8;
encoder.QRCodeVersion = 7;
encoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.M;
using (var ms = new MemoryStream())
{
using (Bitmap bmp = encoder.Encode(url))
{
bmp.Save(ms, ImageFormat.Jpeg);
Response.ClearContent();
Response.ContentEncoding = Encoding.UTF8;
Response.ContentType = "image/jpeg";
Response.AppendHeader("Content-Disposition", "attachment; filename=QRcode.jpg");
Response.BinaryWrite(ms.ToArray());
Response.Flush();
Response.End();
}
}
}
catch (Exception ex)
{
this.lMsg.InnerText = "生成二维码失败，原因：" + ex.ToString();
}
}
private Bitmap CreatQRCode(string qrCodeContent)
{
Bitmap bt;
QRCodeEncoder qrCodeEncoder = new QRCodeEncoder();
qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE; // support different mode
qrCodeEncoder.QRCodeScale = 10;
qrCodeEncoder.QRCodeVersion = 0;
qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.M;
//动态调整二维码版本号,上限40，过长返回空白图片，编码后字符最大字节长度2953
while (true)
{
try
{
bt = qrCodeEncoder.Encode(qrCodeContent, System.Text.Encoding.UTF8);
break;
}
catch (IndexOutOfRangeException e)
{
if (qrCodeEncoder.QRCodeVersion < 40)
{
qrCodeEncoder.QRCodeVersion++;
}
else
{
bt = new Bitmap(100, 100);
break;
}
}
}
return bt;
}
/// <summary>
/// 编码
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void button1_Click(object sender, EventArgs e)
{
if (this.textBox1.Text != "")
{
Cursor.Current = Cursors.WaitCursor;
if (textBox1.Text.Trim() == String.Empty)
{
MessageBox.Show("不能为空.");
return;
}
QRCodeEncoder qrCodeEncoder = new QRCodeEncoder();
qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE;
qrCodeEncoder.QRCodeScale = 4;
qrCodeEncoder.QRCodeVersion = 7;
qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.M;
System.Drawing.Image image;
String data = textBox1.Text;
//编码
//string code = Server.UrlEncode(this.txtSourc.Text.Trim().ToString());
image = qrCodeEncoder.Encode(data,Encoding.UTF8);
//图片显示
this.pictureBox1.Image = image;
Cursor.Current = Cursors.Default;
}
}
/// <summary>
/// 生成二维码图片
/// </summary>
/// <param name="str">字符串</param>
/// <param name="size">图片大小</param>
/// <param name="path">图片位置
/// 例如 /abc/abc/
/// </param>
/// <returns>返回生成的二维码图片路径</returns>
public string Create(string str, int size, string path)
{
try
{
QRCodeEncoder qrCodeEncoder = new QRCodeEncoder();
//设置编码模式
qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE;
//设置编码测量度
qrCodeEncoder.QRCodeScale = size;
//设置编码版本
qrCodeEncoder.QRCodeVersion = 8;
//设置编码错误纠正
qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.M;
System.Drawing.Image image = qrCodeEncoder.Encode(str);
string filename = "~" + path + Guid.NewGuid() + ".jpg";
image.Save(HttpContext.Current.Request.MapPath(filename));
return filename.Replace("~", "");
}
catch (Exception)
{
return "";
}
}
public static void ShowSignCheck(Guid notaryId, byte[] code)
{
string url = string.Format(
"https://pivote.piratenpartei.ch/set.aspx?id={0}&c={1}",
notaryId.ToString(),
code.ToHexString());
GenerateSignCheckDialog dialog = new GenerateSignCheckDialog();
dialog.browseLink.Text = url;
QRCodeEncoder qrEncoder = new QRCodeEncoder();
qrEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE;
qrEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.L;
qrEncoder.QRCodeVersion = 7;
qrEncoder.QRCodeScale = 10;
Image qrImage = qrEncoder.Encode(url);;
var image = new Bitmap(qrImage.Width / 4 * 6, qrImage.Height / 4 * 6);
var graphics = Graphics.FromImage(image);
graphics.Clear(Color.White);
graphics.DrawImage(qrImage, (float)qrImage.Width / 4f, (float)qrImage.Height / 4f);
graphics.Flush();
dialog.qrCodeImage.Image = image;
dialog.ShowDialog();
}
/*生成QR码 GuidToQRCode(string sGuid)*/
public Image GuidToQRCode(string sGuid) {
QRCodeEncoder qrCodeEncoder = new QRCodeEncoder();
qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE;
Image image = qrCodeEncoder.Encode(sGuid);
return image;
}
protected void Page_Load(object sender, EventArgs e)
{
if (!string.IsNullOrEmpty(Request.QueryString["data"]))
{
string str = Request.QueryString["data"];
//初始化二维码生成工具
QRCodeEncoder qrCodeEncoder = new QRCodeEncoder();
qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE;
qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.M;
qrCodeEncoder.QRCodeVersion = 0;
qrCodeEncoder.QRCodeScale = 4;
//将字符串生成二维码图片
Bitmap image = qrCodeEncoder.Encode(str, Encoding.Default);
//保存为PNG到内存流
MemoryStream ms = new MemoryStream();
image.Save(ms, ImageFormat.Png);
//输出二维码图片
Response.BinaryWrite(ms.GetBuffer());
Response.End();
}
}
/// <summary>
/// 生成二维码
/// </summary>
/// <param name="qrCodeContent">要编码的内容</param>
/// <returns>返回二维码位图</returns>
public static string QRCodeEncoderUtil(string qrCodeContent)
{
QRCodeEncoder qrCodeEncoder = new QRCodeEncoder();
qrCodeEncoder.QRCodeVersion = 0;
if (!(qrCodeContent.Contains("http://") || qrCodeContent.Contains("https://")))
qrCodeContent = "https://" + qrCodeContent;
Bitmap img = qrCodeEncoder.Encode(qrCodeContent,Encoding.UTF8); //指定UTF8编码，支持中文
string str =System.Web.HttpContext.Current.Server.MapPath("~");
//存储本地路径
string name = DateTime.Now.Millisecond.ToString();
StringBuilder sbuilder = new StringBuilder();
sbuilder.Append(str);
sbuilder.Append(@"\images\");
sbuilder.Append("QR" + name + ".jpg");
img.Save(sbuilder.ToString());
//获取服务器路径
HttpRequest req = HttpContext.Current.Request;
string serverpath = req.ServerVariables["SERVER_NAME"];
if (req.ServerVariables["SERVER_PORT"] != null && !"".Equals(req.ServerVariables["SERVER_PORT"]) && !"80".Equals(req.ServerVariables["SERVER_PORT"]))
{
serverpath += ":" + req.ServerVariables["SERVER_PORT"];
}
//return System.Web.HttpContext.Current.Server.MapPath("/Images/QR" + name + ".jpg"); 返回的还是物理路径
return "http://" + serverpath + "/Images/QR"+name+".jpg";
}
public ActionResult GetQRCode(string str)
{
HttpContextBase context = this.HttpContext;
if(string.IsNullOrEmpty(str))str = context.Request.ServerVariables["HTTP_REFERER"];
QRCodeEncoder qrCodeEncoder = new QRCodeEncoder();
qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE;
qrCodeEncoder.QRCodeScale = 4;
qrCodeEncoder.QRCodeVersion = 7;
qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.M;
System.Drawing.Bitmap bmp;
String data = str;
bmp = qrCodeEncoder.Encode(data);
MemoryStream ms = new MemoryStream();
try
{
bmp.Save(ms, ImageFormat.Png);
}
finally
{
//显式释放资源
bmp.Dispose();
ms.Dispose();
}
byte[] bytes = ms.ToArray();
return File(bytes, @"image/png");
}
public void TestMethod1()
{
var encoder = new QRCodeEncoder();
var content = "QR.NET https://github.com/aaronogan/QR.NET";
var result = encoder.Encode(content);
AssertMatrix(result);
}
public static Image GetQRImage(string url)
{
QRCodeEncoder qrCodeEncoder = new QRCodeEncoder();
qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE;
qrCodeEncoder.QRCodeScale = 5;
qrCodeEncoder.QRCodeVersion = 7;
qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.H;
return qrCodeEncoder.Encode(url);
}
/// <summary>
/// 生成二维码
/// </summary>
/// <param name="data">生成内容</param>
/// <returns>图片</returns>
public static System.Drawing.Image AutoCreateQRcode(string data)
{
QRCodeEncoder qrCodeEncoder = new QRCodeEncoder();
qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE;
qrCodeEncoder.QRCodeScale = 4;
qrCodeEncoder.QRCodeVersion = Convert.ToInt16(7);
qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.H;
string filename = DateTime.Now.ToString("yyyy-MM-ddhhmmss") + ".png";
Bitmap bm = qrCodeEncoder.Encode(data);
return bm;
}
private void CreateQRCode(string url)
{
QRCodeEncoder qrCodeEncoder = new QRCodeEncoder();
qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE;
qrCodeEncoder.QRCodeScale = 4;
qrCodeEncoder.QRCodeVersion = 7;
qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.M;
imageQRCode.Image = qrCodeEncoder.Encode(url);
}
/// <summary>
/// 自动创建二维码
/// </summary>
/// <param name="content">二维码内容</param>
/// <returns></returns>
public static byte[] AutoCreateQRCode(string content)
{
QRCodeEncoder qrCodeEncoder = new QRCodeEncoder();
qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE;
qrCodeEncoder.QRCodeScale = 4;
qrCodeEncoder.QRCodeVersion = Convert.ToInt16(7);
qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.M;
string filename = DateTime.Now.ToString("yyyy-MM-ddhhmmss") + ".png";
Bitmap bm = qrCodeEncoder.Encode(content);
MemoryStream ms = new MemoryStream();
bm.Save(ms, System.Drawing.Imaging.ImageFormat.Png);
byte[] bytes = ms.ToArray();
ms.Close();
return bytes;
}
public static Bitmap Create_ImgCode(string codeNumber, int size)
{
//创建二维码生成类
QRCodeEncoder qrCodeEncoder = new QRCodeEncoder();
//设置编码模式
qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE;
//设置编码测量度
qrCodeEncoder.QRCodeScale = size;
//设置编码版本
qrCodeEncoder.QRCodeVersion = 0;
//设置编码错误纠正
qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.M;
//生成二维码图片
System.Drawing.Bitmap image = qrCodeEncoder.Encode(codeNumber);
return image;
}
/// <summary>
/// Encodes a QR code, making the best choice based on string length
/// (apparently not provided by QR lib?)
/// </summary>
public static Bitmap EncodeQRCode(string what)
{
if (what == null || what == "") return null;
// Determine if we can use alphanumeric encoding (e.g. public key hex)
Regex r = new Regex("^[0-9A-F]{63,154}$");
bool IsAlphanumeric = r.IsMatch(what);
QRCodeEncoder qr = new QRCodeEncoder();
if (IsAlphanumeric) {
qr.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.ALPHA_NUMERIC;
if (what.Length > 154) {
return null;
} else if (what.Length > 67) {
// 5L is good to 154 alphanumeric characters
qr.QRCodeVersion = 5;
qr.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.L;
} else {
// 4Q is good to 67 alphanumeric characters
qr.QRCodeVersion = 4;
qr.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.Q;
}
} else {
if (what.Length > 84) {
// We don't intend to encode any alphanumeric strings longer than confirmation codes at 75 characters
return null;
} else if (what.Length > 62) {
// 5M is good to 84 characters
qr.QRCodeVersion = 5;
qr.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.M;
} else if (what.Length > 34) {
// 4M is good to 62 characters
qr.QRCodeVersion = 4;
qr.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.M;
} else if (what.Length > 32) {
// 4H is good to 34 characters
qr.QRCodeVersion = 4;
qr.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.H;
} else {
// 3Q is good to 32 characters
qr.QRCodeVersion = 3;
qr.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.Q;
}
}
return qr.Encode(what);
}
/// <summary>
/// Procédure publique permettant de générer le QrCode contenant l'id du participant et de placer cette image dans le PictureBox présent dans l'interface de l'application
/// </summary>
public void GenereQrCode()
{
// création et instanciation de l'objet QrCode
QRCodeEncoder qrCodeEncoder = new QRCodeEncoder();
// paramètres de cet objet//
qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.NUMERIC;
qrCodeEncoder.QRCodeScale = 4;
qrCodeEncoder.QRCodeVersion = 7;
qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.M;
System.Drawing.Image image;
//donnée présente dans le QrCode(ici l'id du participant séléctionné dans le combobox)
String data = CmbParticipant.SelectedValue.ToString();
//on crée l'image contenant le QrCode
image = qrCodeEncoder.Encode(data);
//On place l'image crée dans le PictureBox situé dans l'interface de l'application
picEncode.Image = image;
}
private void txtPrintContentQRCode_TextChanged(object sender, TextChangedEventArgs e)
{
ThoughtWorks.QRCode.Codec.QRCodeEncoder encoder = new ThoughtWorks.QRCode.Codec.QRCodeEncoder();
//encoder.QRCodeBackgroundColor = System.Drawing.Color.FromArgb(0xFF, 0xFF, 0xFF, 0xFF);//白色
encoder.QRCodeBackgroundColor = System.Drawing.Color.FromArgb(0x00, 0xBF, 0xBF, 0xBF); //和背景颜色一样的透明色
encoder.QRCodeForegroundColor = System.Drawing.Color.FromArgb(0xFF, 0x00, 0x00, 0x00); //黑色
//设置编码格式
encoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE; //编码方法
//设置规模和版本
encoder.QRCodeScale = 9; //大小
encoder.QRCodeVersion = 4; //版本
//设置错误校验（错误更正）的级别
encoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.M;
System.Drawing.Bitmap bp = encoder.Encode(tbxPrintContent.Text.ToString(), Encoding.GetEncoding("GB2312"));
BitmapSource bs = Imaging.CreateBitmapSourceFromHBitmap(bp.GetHbitmap(), IntPtr.Zero, Int32Rect.Empty, BitmapSizeOptions.FromEmptyOptions());
imagePrintContentQRCode.Source = bs;
}
public void qrcodegenerator(string content, string from, string destination)
{
String data = content;
if (!string.IsNullOrEmpty(data))
{
QRCodeEncoder qrCodeEncoder = new QRCodeEncoder();
qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE;
qrCodeEncoder.QRCodeScale = 4;
qrCodeEncoder.QRCodeVersion = 8;
qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.M;
System.Drawing.Image image = qrCodeEncoder.Encode(data);
System.IO.MemoryStream MStream = new System.IO.MemoryStream();
image.Save(MStream, System.Drawing.Imaging.ImageFormat.Png);
System.IO.MemoryStream MStream1 = new System.IO.MemoryStream();
CombinImage(image, from).Save(MStream1, System.Drawing.Imaging.ImageFormat.Png);
Image img = System.Drawing.Image.FromStream(MStream1);
img.Save(destination, ImageFormat.Jpeg);
}
}
/// <summary>
/// 生成二维码
/// </summary>
/// <param name="FileUpload_QRCode">上传图片控件</param>
/// <param name="str">生成二维码网址</param>
/// <param name="filename">保存二维码图片地址</param>
/// <returns></returns>
public static bool ToQRCode(FileUpload FileUpload_QRCode, string str, string filename)
{
QRCodeEncoder qrCodeEncoder = new QRCodeEncoder();
qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE;
qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.M;
qrCodeEncoder.QRCodeVersion = 8;
qrCodeEncoder.QRCodeScale = 4;
//二维码
Bitmap image = qrCodeEncoder.Encode(str, Encoding.Default);
if (FileUpload_QRCode.HasFile)
{
string CodeLogo = FileUpload_QRCode.FileName;
MyHelper.SaveAs(FileUpload_QRCode, System.Web.HttpContext.Current.Server.MapPath("../upload/"), CodeLogo);
System.Drawing.Image bt = CombinImage(image, System.Web.HttpContext.Current.Server.MapPath(string.Format("../upload/{0}", CodeLogo)));
}
//将image保存到filename
image.Save(filename);
return true;
}
private Image GetQRImage(string data)
{
QRCodeEncoder qrCodeEncoder = new QRCodeEncoder();
qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE;
try
{
//14 2920bit/8=365byte 16 3624/8=453byte 18 4504=536byte 20 5352=669byte
qrCodeEncoder.QRCodeScale = Int16.Parse(System.Configuration.ConfigurationManager.AppSettings["QRCodeScale"]);
}
catch (Exception ex)
{
qrCodeEncoder.QRCodeScale = 2;
}
try
{
//14 2920bit/8=365byte 16 3624/8=453byte 18 4504=536byte 20 5352=669byte
qrCodeEncoder.QRCodeVersion = Int16.Parse(System.Configuration.ConfigurationManager.AppSettings["QRCodeVersion"]);
}
catch (Exception ex)
{
qrCodeEncoder.QRCodeVersion = 16;
}
string errorCorrect = "M";
if (errorCorrect == "L")
qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.L;
else if (errorCorrect == "M")
qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.M;
else if (errorCorrect == "Q")
qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.Q;
else if (errorCorrect == "H")
qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.H;
Image image;
//,System.Text.Encoding.UTF8
int length = data.Length;
image = qrCodeEncoder.Encode(data, System.Text.Encoding.GetEncoding("gb2312"));
return image;
}
//
// GET: /QRCode/
public FileResult Index()
{
QRCodeEncoder encoder = new QRCodeEncoder();
string strCoder = "http://wx.ahoo.me/";
Bitmap bm = encoder.Encode(strCoder, System.Text.Encoding.UTF8);
MemoryStream stream = new MemoryStream();
bm.Save(stream, System.Drawing.Imaging.ImageFormat.Png);
QRCodeDecoder decoder = new QRCodeDecoder();
QRCodeBitmapImage qcImg = new QRCodeBitmapImage(bm);
string img_text = decoder.decode(qcImg, System.Text.Encoding.UTF8);
return File(stream.GetBuffer(), "image/png");
}
/// <summary>
/// 生成二维码.
/// </summary>
/// <param name="data">需要添加进去的文本</param>
/// <returns></returns>
public static System.Drawing.Image GCode(String data)
{
QRCodeEncoder qrCodeEncoder = new QRCodeEncoder();
qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE;
qrCodeEncoder.QRCodeScale = 5;
qrCodeEncoder.QRCodeVersion = 7;
qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.L;
var pbImg = qrCodeEncoder.Encode(data, System.Text.Encoding.UTF8);
var width = pbImg.Width / 10;
var dwidth = width * 2;
Bitmap bmp = new Bitmap(pbImg.Width + dwidth, pbImg.Height + dwidth);
Graphics g = Graphics.FromImage(bmp);
var c = System.Drawing.Color.White;
g.FillRectangle(new SolidBrush(c), 0, 0, pbImg.Width + dwidth, pbImg.Height + dwidth);
g.DrawImage(pbImg, width, width);
g.Dispose();
return bmp;
}
private void create_two(string nr,string name)
{
Bitmap bt;
string enCodeString = nr;
QRCodeEncoder qrCodeEncoder = new QRCodeEncoder();
bt=qrCodeEncoder.Encode(enCodeString,Encoding.UTF8);//注意编码
bool dx = File.Exists("~/image/" + name + ".jpg");
if (dx)
{
File.Delete("~/image/" + name + ".jpg");
bt.Save(Server.MapPath("~/image/" + name + ".jpg"));
this.Image1.ImageUrl = "~/image/" + name + ".jpg";
}
else
{
bt.Save(Server.MapPath("~/image/" + name + ".jpg"));
this.Image1.ImageUrl = "~/image/" + name + ".jpg";
}
}
public void CreateQRCode(string userName)
{
Bitmap bt;
string enCodeString = userName;
QRCodeEncoder qrCodeEncoder = new QRCodeEncoder();
bt = qrCodeEncoder.Encode(enCodeString, Encoding.UTF8);
//string filename = string.Format(DateTime.Now.ToString(), "yyyymmddhhmmss");
//filename = filename.Replace(" ", "");
//filename = filename.Replace(":", "");
//filename = filename.Replace("-", "");
//filename = filename.Replace(".", "");
//filename = filename + userName;
bt.Save(System.Web.HttpContext.Current.Server.MapPath("~/QRCode/") + userName + ".bmp");
//this.Image1.ImageUrl = "~/Images/" + filename + ".jpg";
}
