简介
最近瞎琢磨的一些小东西，也算是一个比较完整的二维码生成了，上手也很快，可自行扩展。
现在生成二维码有多种方式，我使用的是QRCoder。
第一步 安装Nuget包 QRCoder
也可以通过命令行来引入，看自己的习惯.
第二步 创建一个公共类 QRCoderHelper.cs
这个类用来处理二维码的生成，也方便后续的扩展
using QRCoder;using System;using System.Drawing;using System.Drawing.Imaging;using System.IO;using static QRCoder.QRCodeGenerator;namespace QRCoderRWM{/// <summary>/// 二维码公共处理类/// </summary>public static class QRCoderHelper{///生成二维码/// </summary>/// <param name="TextContent">文本信息</param>/// <param name="level">容错等级</param>/// <param name="version">版本</param>/// <param name="pixel">像素点大小</param>/// <param name="darkColor">数点颜色</param>/// <param name="lightColor">背景颜色</param>/// <param name="iconPath">图标路径</param>/// <param name="iconSize">图标尺寸</param>/// <param name="iconBorder">图标边框厚度</param>/// <param name="whiteBorder">二维码白边</param>/// <returns></returns>public static Bitmap generateQrCode(string TextContent, string level, int version, int pixel,Color darkColor, Color lightColor, string iconPath, int iconSize, int iconBorder, bool whiteBorder){QRCodeGenerator.ECCLevel eccLevel = (QRCodeGenerator.ECCLevel)(level == "L" ? 0 : level == "M" ? 1 : level == "Q" ? 2 : 3);QRCoder.QRCodeGenerator codeGenerator = new QRCoder.QRCodeGenerator();QRCoder.QRCodeData codeData = codeGenerator.CreateQrCode(TextContent, eccLevel, false, false, QRCoder.QRCodeGenerator.EciMode.Utf8, version);QRCoder.QRCode code = new QRCoder.QRCode(codeData);if (iconPath == ""){Bitmap bmp = code.GetGraphic(pixel, darkColor, lightColor, whiteBorder);return bmp;}Bitmap icon = new Bitmap(iconPath);Bitmap iocnbmp = code.GetGraphic(pixel, darkColor, lightColor, icon, iconSize, iconBorder, whiteBorder);return iocnbmp;}}}第三步 窗体代码
拖拉组件，以及生成的代码
namespace QRCoderRWM{partial class Form2{/// <summary>/// Required designer variable./// </summary>private System.ComponentModel.IContainer components = null;/// <summary>/// Clean up any resources being used./// </summary>/// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>protected override void Dispose(bool disposing){if (disposing && (components != null)){components.Dispose();}base.Dispose(disposing);}#region Windows Form Designer generated code/// <summary>/// Required method for Designer support - do not modify/// the contents of this method with the code editor./// </summary>private void InitializeComponent(){this.pic = new System.Windows.Forms.PictureBox();this.label1 = new System.Windows.Forms.Label();this.label2 = new System.Windows.Forms.Label();this.label3 = new System.Windows.Forms.Label();this.label4 = new System.Windows.Forms.Label();this.label5 = new System.Windows.Forms.Label();this.textcontent = new System.Windows.Forms.TextBox();this.versionTxt = new System.Windows.Forms.ComboBox();this.iconsizeCom = new System.Windows.Forms.ComboBox();this.pixelCom = new System.Windows.Forms.ComboBox();this.iconborderCom = new System.Windows.Forms.ComboBox();this.whiteborder = new System.Windows.Forms.RadioButton();this.whiteborder1 = new System.Windows.Forms.RadioButton();this.button1 = new System.Windows.Forms.Button();this.button2 = new System.Windows.Forms.Button();this.levelCom = new System.Windows.Forms.ComboBox();this.label6 = new System.Windows.Forms.Label();this.label7 = new System.Windows.Forms.Label();this.colorDialog1 = new System.Windows.Forms.ColorDialog();this.darkColorBtn = new System.Windows.Forms.Button();this.lightColorBtn = new System.Windows.Forms.Button();this.colorDialog2 = new System.Windows.Forms.ColorDialog();this.openFileDialog1 = new System.Windows.Forms.OpenFileDialog();this.button3 = new System.Windows.Forms.Button();this.folderBrowserDialog1 = new System.Windows.Forms.FolderBrowserDialog();((System.ComponentModel.ISupportInitialize)(this.pic)).BeginInit();this.SuspendLayout();//// pic//this.pic.Location = new System.Drawing.Point(59, 39);this.pic.Name = "pic";this.pic.Size = new System.Drawing.Size(590, 400);this.pic.TabIndex = 0;this.pic.TabStop = false;//// label1//this.label1.AutoSize = true;this.label1.Location = new System.Drawing.Point(20, 445);this.label1.Name = "label1";this.label1.Size = new System.Drawing.Size(54, 20);this.label1.TabIndex = 1;this.label1.Text = "版本：";//// label2//this.label2.AutoSize = true;this.label2.Location = new System.Drawing.Point(20, 502);this.label2.Name = "label2";this.label2.Size = new System.Drawing.Size(84, 20);this.label2.TabIndex = 2;this.label2.Text = "图片尺寸：";//// label3//this.label3.AutoSize = true;this.label3.Location = new System.Drawing.Point(20, 613);this.label3.Name = "label3";this.label3.Size = new System.Drawing.Size(54, 20);this.label3.TabIndex = 3;this.label3.Text = "白边：";//// label4//this.label4.AutoSize = true;this.label4.Location = new System.Drawing.Point(363, 445);this.label4.Name = "label4";this.label4.Size = new System.Drawing.Size(54, 20);this.label4.TabIndex = 4;this.label4.Text = "像素：";//// label5//this.label5.AutoSize = true;this.label5.Location = new System.Drawing.Point(363, 502);this.label5.Name = "label5";this.label5.Size = new System.Drawing.Size(84, 20);this.label5.TabIndex = 5;this.label5.Text = "图片边线：";//// textcontent//this.textcontent.Location = new System.Drawing.Point(20, 671);this.textcontent.Multiline = true;this.textcontent.Name = "textcontent";this.textcontent.Size = new System.Drawing.Size(600, 135);this.textcontent.TabIndex = 6;this.textcontent.Text = "初秋";//// versionTxt//this.versionTxt.FormattingEnabled = true;this.versionTxt.Items.AddRange(new object[] {"-1","0","1","2","3","4","5"});this.versionTxt.Location = new System.Drawing.Point(109, 445);this.versionTxt.Name = "versionTxt";this.versionTxt.Size = new System.Drawing.Size(151, 28);this.versionTxt.TabIndex = 7;//// iconsizeCom//this.iconsizeCom.FormattingEnabled = true;this.iconsizeCom.Items.AddRange(new object[] {"5","10","15","20","25","30"});this.iconsizeCom.Location = new System.Drawing.Point(110, 502);this.iconsizeCom.Name = "iconsizeCom";this.iconsizeCom.Size = new System.Drawing.Size(151, 28);this.iconsizeCom.TabIndex = 8;//// pixelCom//this.pixelCom.FormattingEnabled = true;this.pixelCom.Items.AddRange(new object[] {"10","20","30","40","50","60"});this.pixelCom.Location = new System.Drawing.Point(469, 445);this.pixelCom.Name = "pixelCom";this.pixelCom.Size = new System.Drawing.Size(151, 28);this.pixelCom.TabIndex = 9;//// iconborderCom//this.iconborderCom.FormattingEnabled = true;this.iconborderCom.Items.AddRange(new object[] {"1","2","3","4","5","6","7","8","9"});this.iconborderCom.Location = new System.Drawing.Point(469, 502);this.iconborderCom.Name = "iconborderCom";this.iconborderCom.Size = new System.Drawing.Size(151, 28);this.iconborderCom.TabIndex = 10;//// whiteborder//this.whiteborder.AutoSize = true;this.whiteborder.Location = new System.Drawing.Point(109, 613);this.whiteborder.Name = "whiteborder";this.whiteborder.Size = new System.Drawing.Size(45, 24);this.whiteborder.TabIndex = 11;this.whiteborder.TabStop = true;this.whiteborder.Text = "有";this.whiteborder.UseVisualStyleBackColor = true;//// whiteborder1//this.whiteborder1.AutoSize = true;this.whiteborder1.Location = new System.Drawing.Point(215, 613);this.whiteborder1.Name = "whiteborder1";this.whiteborder1.Size = new System.Drawing.Size(45, 24);this.whiteborder1.TabIndex = 12;this.whiteborder1.TabStop = true;this.whiteborder1.Text = "无";this.whiteborder1.UseVisualStyleBackColor = true;//// button1//this.button1.Location = new System.Drawing.Point(76, 836);this.button1.Name = "button1";this.button1.Size = new System.Drawing.Size(94, 29);this.button1.TabIndex = 13;this.button1.Text = "生成";this.button1.UseVisualStyleBackColor = true;this.button1.Click += new System.EventHandler(this.button1_Click);//// button2//this.button2.Location = new System.Drawing.Point(415, 836);this.button2.Name = "button2";this.button2.Size = new System.Drawing.Size(94, 29);this.button2.TabIndex = 14;this.button2.Text = "保存";this.button2.UseVisualStyleBackColor = true;this.button2.Click += new System.EventHandler(this.button2_Click);//// levelCom//this.levelCom.FormattingEnabled = true;this.levelCom.Items.AddRange(new object[] {"L","Q","H","M"});this.levelCom.Location = new System.Drawing.Point(109, 554);this.levelCom.Name = "levelCom";this.levelCom.Size = new System.Drawing.Size(151, 28);this.levelCom.TabIndex = 15;//// label6//this.label6.AutoSize = true;this.label6.Location = new System.Drawing.Point(20, 557);this.label6.Name = "label6";this.label6.Size = new System.Drawing.Size(84, 20);this.label6.TabIndex = 16;this.label6.Text = "容错等级：";//// label7//this.label7.AutoSize = true;this.label7.Location = new System.Drawing.Point(363, 565);this.label7.Name = "label7";this.label7.Size = new System.Drawing.Size(0, 20);this.label7.TabIndex = 17;//// darkColorBtn//this.darkColorBtn.Location = new System.Drawing.Point(369, 561);this.darkColorBtn.Name = "darkColorBtn";this.darkColorBtn.Size = new System.Drawing.Size(94, 29);this.darkColorBtn.TabIndex = 21;this.darkColorBtn.Text = "二维码颜色";this.darkColorBtn.UseVisualStyleBackColor = true;this.darkColorBtn.Click += new System.EventHandler(this.darkColorBtn_Click);//// lightColorBtn//this.lightColorBtn.Location = new System.Drawing.Point(526, 561);this.lightColorBtn.Name = "lightColorBtn";this.lightColorBtn.Size = new System.Drawing.Size(94, 29);this.lightColorBtn.TabIndex = 22;this.lightColorBtn.Text = "二维码底色";this.lightColorBtn.UseVisualStyleBackColor = true;this.lightColorBtn.Click += new System.EventHandler(this.lightColorBtn_Click);//// openFileDialog1//this.openFileDialog1.FileName = "openFileDialog1";//// button3//this.button3.Location = new System.Drawing.Point(369, 613);this.button3.Name = "button3";this.button3.Size = new System.Drawing.Size(94, 29);this.button3.TabIndex = 23;this.button3.Text = "自定义图片";this.button3.UseVisualStyleBackColor = true;this.button3.Click += new System.EventHandler(this.button3_Click);//// Form2//this.AutoScaleDimensions = new System.Drawing.SizeF(9F, 20F);this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;this.CausesValidation = false;this.ClientSize = new System.Drawing.Size(673, 881);this.Controls.Add(this.button3);this.Controls.Add(this.lightColorBtn);this.Controls.Add(this.darkColorBtn);this.Controls.Add(this.label7);this.Controls.Add(this.label6);this.Controls.Add(this.levelCom);this.Controls.Add(this.button2);this.Controls.Add(this.button1);this.Controls.Add(this.whiteborder1);this.Controls.Add(this.whiteborder);this.Controls.Add(this.iconborderCom);this.Controls.Add(this.pixelCom);this.Controls.Add(this.iconsizeCom);this.Controls.Add(this.versionTxt);this.Controls.Add(this.textcontent);this.Controls.Add(this.label5);this.Controls.Add(this.label4);this.Controls.Add(this.label3);this.Controls.Add(this.label2);this.Controls.Add(this.label1);this.Controls.Add(this.pic);this.Name = "Form2";this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;this.Text = "Form2";this.Load += new System.EventHandler(this.Form2_Load);((System.ComponentModel.ISupportInitialize)(this.pic)).EndInit();this.ResumeLayout(false);this.PerformLayout();}#endregionprivate PictureBox pic;private Label label1;private Label label2;private Label label3;private Label label4;private Label label5;private TextBox textcontent;private ComboBox versionTxt;private ComboBox iconsizeCom;private ComboBox pixelCom;private ComboBox iconborderCom;private RadioButton whiteborder;private RadioButton whiteborder1;private Button button1;private Button button2;private ComboBox levelCom;private Label label6;private Label label7;private ColorDialog colorDialog1;private Button darkColorBtn;private Button lightColorBtn;private ColorDialog colorDialog2;private OpenFileDialog openFileDialog1;private Button button3;private FolderBrowserDialog folderBrowserDialog1;}}
第四步 实现方式
处理生成的数据，传给公共类 QRCoderHelper.cs
using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Text;using System.Threading.Tasks;using System.Windows.Forms;using static QRCoder.QRCodeGenerator;using static System.Windows.Forms.VisualStyles.VisualStyleElement;namespace QRCoderRWM{public partial class Form2 : Form{//二维码颜色private static Color darkColor =Color.Black;//背景颜色private static Color lightColor = Color.White;//Logo地址private static string path ="";public Form2(){InitializeComponent();}private void Form2_Load(object sender, EventArgs e){//版本versionTxt.SelectedIndex = 0;//像素大小pixelCom.SelectedIndex = 0;//图片大小iconsizeCom.SelectedIndex = 0;//图片边框iconborderCom.SelectedIndex = 0;//容错等级levelCom.SelectedIndex = 0;}private void button1_Click(object sender, EventArgs e){//版本int version = Convert.ToInt16(versionTxt.Text);//像素大小int pixel = Convert.ToInt16(pixelCom.Text);//二维码内容string msg = textcontent.Text;//图片大小int iconSize = Convert.ToInt16(iconsizeCom.Text);//图片边框int iconBorder = Convert.ToInt16(iconborderCom.Text);//二维码空白边框bool Iswhiteborder = whiteborder.Checked ? true : false;//容错等级string level = levelCom.Text;Bitmap bitmap = QRCoderHelper.generateQrCode(msg, level, version, pixel, darkColor, lightColor, path, iconSize, iconBorder, Iswhiteborder);pic.Image = bitmap;}private void button2_Click(object sender, EventArgs e){if (pic.Image != null)using (SaveFileDialog sfd = new SaveFileDialog()){sfd.Filter = "(*.png)|*.png|(*.bmp)|*.bmp";if (sfd.ShowDialog() == DialogResult.OK) pic.Image.Save(sfd.FileName);}}private void darkColorBtn_Click(object sender, EventArgs e){//显示颜色对话框DialogResult dr = colorDialog1.ShowDialog();if (dr == DialogResult.OK){darkColor = colorDialog1.Color;}}private void lightColorBtn_Click(object sender, EventArgs e){//显示颜色对话框DialogResult dr = colorDialog2.ShowDialog();if (dr == DialogResult.OK){lightColor = colorDialog2.Color;}}private void button3_Click(object sender, EventArgs e){var dr = new OpenFileDialog();//f.Multiselect = true; //多选if (dr.ShowDialog() == DialogResult.OK){path = dr.FileName;String filename = dr.SafeFileName;}//选择文件夹//FolderBrowserDialog dr = new FolderBrowserDialog();//if (dr.ShowDialog() == DialogResult.OK)//{// String DirPath = dr.SelectedPath;//}}}}
