package net.aykj.util.createCode;
import java.awt.BasicStroke;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.Shape;
import java.awt.geom.RoundRectangle2D;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.OutputStream;
import java.util.Date;
import java.util.Hashtable;
import javax.imageio.ImageIO;
import com.google.zxing.BarcodeFormat;
import com.google.zxing.BinaryBitmap;
import com.google.zxing.DecodeHintType;
import com.google.zxing.EncodeHintType;
import com.google.zxing.MultiFormatReader;
import com.google.zxing.MultiFormatWriter;
import com.google.zxing.Result;
import com.google.zxing.common.BitMatrix;
import com.google.zxing.common.HybridBinarizer;
import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;
import net.aykj.pojo.Annex;
/**
* *
* https://www.aykj.net/
* .--, .--,
* ( ( \.---./ ) )
* '.__/o o\__.'
* {= ^ =}
* > - <
* / \
* // \\
* //| . |\\
* "'\ /'"_.-~^`'-.
* \ _ /--' `
* ___)( )(___
* (((__) (__))) 高山仰止,景行行止.雖不能至,心嚮往之。
*
* @Version : v5.1
* @Description : CreateQRCodeUtil.java 生成二維碼工具類
* @Author : VinceBran
* @Date : 2020年3月5日上午10:57:44
*/
public class CreateQRCodeUtil {
private static final String CHARSET = "utf-8";
private static final String FORMAT_NAME = "JPG";
// 二維碼尺寸
private static final int QRCODE_SIZE = 260;
// LOGO寬度
private static final int WIDTH = 60;
// LOGO高度
private static final int HEIGHT = 60;
@SuppressWarnings({ "rawtypes", "unchecked" })
private static BufferedImage createImage(String content, String imgPath, boolean needCompress) throws Exception {
Hashtable hints = new Hashtable();
hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H);
hints.put(EncodeHintType.CHARACTER_SET, CHARSET);
//hints.put(EncodeHintType.MARGIN, 1);
BitMatrix bitMatrix = new MultiFormatWriter().encode(content, BarcodeFormat.QR_CODE, QRCODE_SIZE, QRCODE_SIZE, hints);
int width = bitMatrix.getWidth();
int height = bitMatrix.getHeight();
BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
for (int x = 0; x < width; x++) {
for (int y = 0; y < height; y++) {
image.setRGB(x, y, bitMatrix.get(x, y) ? 0xFF000000 : 0xFFFFFFFF);
}
}
if (imgPath == null || "".equals(imgPath)) {
return image;
}
// 插入圖片
CreateQRCodeUtil.insertImage(image, imgPath, needCompress);
return image;
}
/**
* 插入logo圖片
* @param source
* @param imgPath
* @param needCompress
* @throws Exception
*/
private static void insertImage(BufferedImage source, String imgPath, boolean needCompress) throws Exception {
File file = new File(imgPath);
if (!file.exists()) {
System.err.println(""+imgPath+" 該文件不存在！");
return;
}
Image src = ImageIO.read(new File(imgPath));
int width = src.getWidth(null);
int height = src.getHeight(null);
if (needCompress) {
// 壓縮LOGO
if (width > WIDTH) {
width = WIDTH;
}
if (height > HEIGHT) {
height = HEIGHT;
}
Image image = src.getScaledInstance(width, height, Image.SCALE_SMOOTH);
BufferedImage tag = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
Graphics g = tag.getGraphics();
// 繪製縮小後的圖
g.drawImage(image, 0, 0, null);
g.dispose();
src = image;
}
// 插入LOGO
Graphics2D graph = source.createGraphics();
int x = (QRCODE_SIZE - width) / 2;
int y = (QRCODE_SIZE - height) / 2;
graph.drawImage(src, x, y, width, height, null);
Shape shape = new RoundRectangle2D.Float(x, y, width, width, 6, 6);
graph.setStroke(new BasicStroke(3f));
graph.draw(shape);
graph.dispose();
}
/**
* 生成帶圖片的二維碼
* @param content
* @param imgPath
* @param destPath
* @param needCompress
* @throws Exception
*/
public static Annex encode(String content, String imgPath, String destPath, boolean needCompress) throws Exception {
BufferedImage image = CreateQRCodeUtil.createImage(content, imgPath, needCompress);
mkdirs(destPath);
//以日期爲生成的圖片名字
String file = System.currentTimeMillis() + ".jpg";
ImageIO.write(image, FORMAT_NAME, new File(destPath+"/"+file));
//封裝
Annex annex = new Annex();
annex.setCreatetime(new Date());
annex.setExt("jpg");
annex.setName(file);
return annex;
}
public static void mkdirs(String destPath) {
File file =new File(destPath);
//當文件夾不存在時，mkdirs會自動創建多層目錄，區別於mkdir．(mkdir如果父目錄不存在則會拋出異常)
if (!file.exists() && !file.isDirectory()) {
file.mkdirs();
}
}
public static void encode(String content, String imgPath, String destPath) throws Exception {
CreateQRCodeUtil.encode(content, imgPath, destPath, false);
}
public static void encode(String content, String destPath, boolean needCompress) throws Exception {
CreateQRCodeUtil.encode(content, null, destPath, needCompress);
}
public static void encode(String content, String destPath) throws Exception {
CreateQRCodeUtil.encode(content, null, destPath, false);
}
public static void encode(String content, String imgPath, OutputStream output, boolean needCompress) throws Exception {
BufferedImage image = CreateQRCodeUtil.createImage(content, imgPath, needCompress);
ImageIO.write(image, FORMAT_NAME, output);
}
public static void encode(String content, OutputStream output) throws Exception {
CreateQRCodeUtil.encode(content, null, output, false);
}
@SuppressWarnings({ "rawtypes", "unchecked" })
public static String decode(File file) throws Exception {
BufferedImage image;
image = ImageIO.read(file);
if (image == null) {
return null;
}
BufferedImageLuminanceSource source = new BufferedImageLuminanceSource(
image);
BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
Result result;
Hashtable hints = new Hashtable();
hints.put(DecodeHintType.CHARACTER_SET, CHARSET);
result = new MultiFormatReader().decode(bitmap, hints);
String resultStr = result.getText();
return resultStr;
}
public static String decode(String path) throws Exception {
return CreateQRCodeUtil.decode(new File(path));
}
public static void main(String[] args) throws Exception {
String text = "http://wwwyrgovcn.aykj.wang/view/yrzfmainmobile/2/179/view/1.html";
//生成帶圖片的二維碼
// CreateQRCodeUtil.encode(text, "d:/MyWorkDoc/my180.jpg", "d:/MyWorkDoc", true);
Annex annex = CreateQRCodeUtil.encode(text, "C:/Users/13207/Desktop/picture/pic3.jpg", "d:/MyWorkDoc", true);
//生成不帶圖片的二維碼
// Annex annex = CreateQRCodeUtil.encode(text, "", "d:", true);
System.out.println(annex.getName());
}
}