ZXing生成二维码，以及给二维码添加Logo

来源：互联网发布：vb winhttp 编辑：程序博客网时间：2024/06/05 09:36

二维码生成主要使用了Google的zxing开源包。具体jar去官网下载!

类引入：

package com.rayn.qt1;

import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Graphics2D;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.OutputStream;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
import javax.imageio.ImageIO;
import com.google.zxing.BarcodeFormat;
import com.google.zxing.Binarizer;
import com.google.zxing.BinaryBitmap;
import com.google.zxing.EncodeHintType;
import com.google.zxing.LuminanceSource;
import com.google.zxing.MultiFormatReader;
import com.google.zxing.MultiFormatWriter;
import com.google.zxing.Result;
import com.google.zxing.WriterException;
import com.google.zxing.common.BitMatrix;
import com.google.zxing.common.HybridBinarizer;
import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;

生成代码如下所示，

1.二维码属性设置

public Map getDecodeHintType()
{
// 用于设置QR二维码参数
Map hints = new HashMap();
// 设置QR二维码的纠错级别（H为最高级别）具体级别信息
hints.put(EncodeHintType.ERROR_CORRECTION,ErrorCorrectionLevel.H);
// 设置编码方式
hints.put(EncodeHintType.CHARACTER_SET, "utf-8");
hints.put(EncodeHintType.MAX_SIZE, 350);
hints.put(EncodeHintType.MIN_SIZE, 100);

return hints;
}

2.二维码的数据信息初始化

public BufferedImage fileToBufferedImage(BitMatrix bm)
{
BufferedImage image = null;
try
{
int w = bm.getWidth(), h = bm.getHeight();
image = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);

for (int x = 0; x < w; x++)
{
for (int y = 0; y < h; y++)
{
image.setRGB(x, y, bm.get(x, y) ? 0xFF000000 : 0xFFCCDDEE);
}
}

}
catch (Exception e)
{
e.printStackTrace();
}
return image;
}

3.二维码生成

public BufferedImage getQR_CODEBufferedImage(String content,BarcodeFormat barcodeFormat, int width, int height, Maphints)
{
MultiFormatWriter multiFormatWriter = null;
BitMatrix bm = null;
BufferedImage image = null;
try
{
multiFormatWriter = new MultiFormatWriter();

// 参数顺序分别为：编码内容，编码类型，生成图片宽度，生成图片高度，设置参数
bm = multiFormatWriter.encode(content, barcodeFormat, width,height, hints);

int w = bm.getWidth();
int h = bm.getHeight();
image = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);

// 开始利用二维码数据创建Bitmap图片，分别设为黑（0xFFFFFFFF）白（0xFF000000）两色
for (int x = 0; x < w; x++)
{
for (int y = 0; y < h; y++)
{
image.setRGB(x, y, bm.get(x, y) ? 0xFF000000 : 0xFFCCDDEE);
}
}
}
catch (WriterException e)
{
e.printStackTrace();
}
return image;
}

4.二维码的生成输出文件或输出流进行使用

public void decodeQR_CODE2ImageFile(BitMatrix bm, StringimageFormat, File file)
{
try
{
if (null == file || file.getName().trim().isEmpty())
{
throw new IllegalArgumentException("文件异常，或扩展名有问题！");
}

BufferedImage bi = fileToBufferedImage(bm);
ImageIO.write(bi, "jpeg", file);
}
catch (Exception e)
{
e.printStackTrace();
}
}

public void decodeQR_CODE2OutputStream(BitMatrix bm, StringimageFormat, OutputStream os)
{
try
{
BufferedImage image = fileToBufferedImage(bm);
ImageIO.write(image, imageFormat, os);
}
catch (Exception e)
{
e.printStackTrace();
}
}

5.给二维码中间的部分添加Logo图片。类似微信那样的

public void addLogo_QRCode(File qrPic, File logoPic, LogoConfiglogoConfig)
{
try
{
if (!qrPic.isFile() || !logoPic.isFile())
{
System.out.print("file not find !");
System.exit(0);
}

BufferedImage image = ImageIO.read(qrPic);
Graphics2D g = image.createGraphics();

BufferedImage logo = ImageIO.read(logoPic);

int widthLogo = logo.getWidth(), heightLogo =logo.getHeight();

// 计算图片放置位置
int x = (image.getWidth() - widthLogo) / 2;
int y = (image.getHeight() - logo.getHeight()) / 2;

//开始绘制图片
g.drawImage(logo, x, y, widthLogo, heightLogo, null);
g.drawRoundRect(x, y, widthLogo, heightLogo, 15, 15);
g.setStroke(new BasicStroke(logoConfig.getBorder()));
g.setColor(logoConfig.getBorderColor());
g.drawRect(x, y, widthLogo, heightLogo);

g.dispose();

ImageIO.write(image, "jpeg", new File("D:/newPic.jpg"));
}
catch (Exception e)
{
e.printStackTrace();
}
}

Logo辅助类：

public class LogoConfig
{
// logo默认边框颜色
public static final Color DEFAULT_BORDERCOLOR = Color.WHITE;
// logo默认边框宽度
public static final int DEFAULT_BORDER = 2;
// logo大小默认为照片的1/5
public static final int DEFAULT_LOGOPART = 5;

private final int border = DEFAULT_BORDER;
private final Color borderColor;
private final int logoPart;

public LogoConfig()
{
this(DEFAULT_BORDERCOLOR, DEFAULT_LOGOPART);
}

public LogoConfig(Color borderColor, int logoPart)
{
this.borderColor = borderColor;
this.logoPart = logoPart;
}

public Color getBorderColor()
{
return borderColor;
}

public int getBorder()
{
return border;
}

public int getLogoPart()
{
return logoPart;
}
}

6.二维码解析

public void parseQR_CODEImage(File file)
{
try
{
MultiFormatReader formatReader = new MultiFormatReader();

// File file = new File(filePath);
if (!file.exists())
{
return;
}

BufferedImage image = ImageIO.read(file);

LuminanceSource source = newBufferedImageLuminanceSource(image);
Binarizer binarizer = new HybridBinarizer(source);
BinaryBitmap binaryBitmap = new BinaryBitmap(binarizer);

Map hints = new HashMap();
hints.put(EncodeHintType.CHARACTER_SET, "UTF-8");

Result result = formatReader.decode(binaryBitmap, hints);

System.out.println("result = " + result.toString());
System.out.println("resultFormat = " +result.getBarcodeFormat());
System.out.println("resultText = " + result.getText());
}
catch (Exception e)
{
e.printStackTrace();
}
}

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package com.rayn.qt1;

import java.awt.BasicStroke;

import java.awt.Color;

import java.awt.Graphics2D;

import java.awt.image.BufferedImage;

import java.io.File;

import java.io.OutputStream;

import java.util.Date;

import java.util.HashMap;

import java.util.Map;

import javax.imageio.ImageIO;

import com.google.zxing.BarcodeFormat;

import com.google.zxing.Binarizer;

import com.google.zxing.BinaryBitmap;

import com.google.zxing.EncodeHintType;

import com.google.zxing.LuminanceSource;

import com.google.zxing.MultiFormatReader;

import com.google.zxing.MultiFormatWriter;

import com.google.zxing.Result;

import com.google.zxing.WriterException;

import com.google.zxing.common.BitMatrix;

import com.google.zxing.common.HybridBinarizer;

import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;

public class ZXingPic

{

publicstatic void main(String[]args) throws WriterException

{

Stringcontent ="【优秀员工】恭喜您，中奖了！！！领取方式，请拨打电话：15998099997*咨询。";

StringfilePath ="D:/weibow.jpg";

//if(args.length != 2)

//{

//System.out.println("没有内容,图片生成失败!");

//System.exit(0);

//}

try

{

Filefile =new File(filePath);

if(file.exists())

{

file=new File("D:/",newDate().getTime() + ".jpg");

}

ZXingPiczp =new ZXingPic();

BufferedImagebim = zp.getQR_CODEBufferedImage(content,BarcodeFormat.QR_CODE,300,300,zp.getDecodeHintType());

ImageIO.write(bim,"jpeg",file);

zp.addLogo_QRCode(file,newFile("D:/123123123.jpg"), newLogoConfig());

Thread.sleep(5000);

zp.parseQR_CODEImage(newFile("D:/newPic.jpg"));

}

catch(Exception e)

{

e.printStackTrace();

}

publicvoid addLogo_QRCode(File qrPic, File logoPic, LogoConfiglogoConfig)

{

try

{

if(!qrPic.isFile() ||!logoPic.isFile())

{

System.out.print("filenot find !");

System.exit(0);

}

BufferedImageimage = ImageIO.read(qrPic);

Graphics2Dg = image.createGraphics();

BufferedImagelogo = ImageIO.read(logoPic);

intwidthLogo = logo.getWidth(), heightLogo =logo.getHeight();

//计算图片放置位置

intx = (image.getWidth() - widthLogo)/2;

inty = (image.getHeight() - logo.getHeight())/2;

//开始绘制图片

g.drawImage(logo,x, y, widthLogo, heightLogo,null);

g.drawRoundRect(x,y, widthLogo, heightLogo,15,15);

g.setStroke(newBasicStroke(logoConfig.getBorder()));

g.setColor(logoConfig.getBorderColor());

g.drawRect(x,y, widthLogo, heightLogo);

g.dispose();

ImageIO.write(image,"jpeg",newFile("D:/newPic.jpg"));

}

catch(Exception e)

{

e.printStackTrace();

}

publicvoid parseQR_CODEImage(File file)

{

try

{

MultiFormatReaderformatReader =newMultiFormatReader();

//File file = new File(filePath);

if(!file.exists())

{

return;

}

BufferedImageimage = ImageIO.read(file);

LuminanceSourcesource =new BufferedImageLuminanceSource(image);

Binarizerbinarizer =newHybridBinarizer(source);

BinaryBitmapbinaryBitmap =newBinaryBitmap(binarizer);

Maphints =new HashMap();

hints.put(EncodeHintType.CHARACTER_SET,"UTF-8");

Resultresult = formatReader.decode(binaryBitmap, hints);

System.out.println("result= "+result.toString());

System.out.println("resultFormat= "+result.getBarcodeFormat());

System.out.println("resultText= "+result.getText());

}

catch(Exception e)

{

e.printStackTrace();

}

publicvoid decodeQR_CODE2ImageFile(BitMatrix bm, StringimageFormat, File file)

{

try

{

if(null== file ||file.getName().trim().isEmpty())

{

thrownewIllegalArgumentException("文件异常，或扩展名有问题！");

}

BufferedImagebi = fileToBufferedImage(bm);

ImageIO.write(bi,"jpeg",file);

}

catch(Exception e)

{

e.printStackTrace();

}

publicvoid decodeQR_CODE2OutputStream(BitMatrix bm, StringimageFormat, OutputStream os)

{

try

{

BufferedImageimage = fileToBufferedImage(bm);

ImageIO.write(image,imageFormat, os);

}

catch(Exception e)

{

e.printStackTrace();

}

publicBufferedImagefileToBufferedImage(BitMatrix bm)

{

BufferedImageimage =null;

try

{

intw = bm.getWidth(), h =bm.getHeight();

image=new BufferedImage(w, h,BufferedImage.TYPE_INT_RGB);

for(intx =0; x <w; x++)

{

for(inty =0; y <h; y++)

{

image.setRGB(x,y, bm.get(x, y) ?0xFF000000: 0xFFCCDDEE);

}

catch(Exception e)

{

e.printStackTrace();

}

returnimage;

}

publicBufferedImagegetQR_CODEBufferedImage(String content, BarcodeFormatbarcodeFormat,intwidth, int height, Maphints)

{

MultiFormatWritermultiFormatWriter =null;

BitMatrixbm =null;

BufferedImageimage =null;

try

{

multiFormatWriter=new MultiFormatWriter();

//参数顺序分别为：编码内容，编码类型，生成图片宽度，生成图片高度，设置参数

bm= multiFormatWriter.encode(content, barcodeFormat, width, height,hints);

intw = bm.getWidth();

inth = bm.getHeight();

image=new BufferedImage(w, h,BufferedImage.TYPE_INT_RGB);

//开始利用二维码数据创建Bitmap图片，分别设为黑（0xFFFFFFFF）白（0xFF000000）两色

for(intx =0; x <w; x++)

{

for(inty =0; y <h; y++)

{

image.setRGB(x,y, bm.get(x, y) ?0xFF000000: 0xFFCCDDEE);

}

catch(WriterException e)

{

e.printStackTrace();

}

returnimage;

}

publicMap getDecodeHintType()

{

//用于设置QR二维码参数

Maphints =new HashMap();

//设置QR二维码的纠错级别（H为最高级别）具体级别信息

hints.put(EncodeHintType.ERROR_CORRECTION,ErrorCorrectionLevel.H);

//设置编码方式

hints.put(EncodeHintType.CHARACTER_SET,"utf-8");

hints.put(EncodeHintType.MAX_SIZE,350);

hints.put(EncodeHintType.MIN_SIZE,100);

returnhints;

}

class LogoConfig

{

//logo默认边框颜色

publicstatic final ColorDEFAULT_BORDERCOLOR = Color.WHITE;

//logo默认边框宽度

publicstatic final intDEFAULT_BORDER = 2;

//logo大小默认为照片的1/5

publicstatic final intDEFAULT_LOGOPART = 5;

privatefinal int border =DEFAULT_BORDER;

privatefinal Color borderColor;

privatefinal int logoPart;

publicLogoConfig()

{

this(DEFAULT_BORDERCOLOR,DEFAULT_LOGOPART);

}

publicLogoConfig(Color borderColor,intlogoPart)

{

this.borderColor= borderColor;

this.logoPart= logoPart;

}

publicColor getBorderColor()

{

returnborderColor;

}

publicint getBorder()

{

returnborder;

}

publicint getLogoPart()

{

returnlogoPart;

}

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