生成的二維碼圖檔:
package com.psd.utils;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import java.util.Objects;
import javax.imageio.ImageIO;
import org.apache.commons.lang3.StringUtils;
import com.github.binarywang.utils.qrcode.MatrixToImageWriter;
import com.google.zxing.BarcodeFormat;
import com.google.zxing.EncodeHintType;
import com.google.zxing.MultiFormatWriter;
import com.google.zxing.common.BitMatrix;
import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;
import sun.awt.SunHints;
/**
* 二維碼工具類
*
* @ClassName: BarcodeUtils.java
* @version: v1.0.0
* @author: pll
* @date: 2018年6月4日 下午2:51:54
*/
public class BarcodeUtils {
private static final int QRCOLOR = 0xFF000000; // 二維碼顔色 預設是黑色
private static final int BGWHITE = 0xFFFFFFFF; // 背景顔色
private static final int WIDTH = 215; // 二維碼寬
private static final int HEIGHT = 215; // 二維碼高
private static final int WORDHEIGHT = 235; // 加文字二維碼高
/**
* 用于設定QR二維碼參數
*/
private static Map<EncodeHintType, Object> hints = new HashMap<EncodeHintType, Object>() {
private static final long serialVersionUID = 1L;
{
// 設定QR二維碼的糾錯級别(H為最進階别)具體級别資訊
put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H);
// 設定編碼方式
put(EncodeHintType.CHARACTER_SET, "utf-8");
put(EncodeHintType.MARGIN, 0);
}
};
/**
* 設定 Graphics2D 屬性 (抗鋸齒)
* @param graphics2D
*/
private static void setGraphics2D(Graphics2D graphics2D){
graphics2D.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
graphics2D.setRenderingHint(RenderingHints.KEY_STROKE_CONTROL, RenderingHints.VALUE_STROKE_DEFAULT);
Stroke s = new BasicStroke(1, BasicStroke.CAP_ROUND, BasicStroke.JOIN_MITER);
graphics2D.setStroke(s);
}
/**
* 生成二維碼圖檔存儲到filePath中
*
* @param content
* 二維碼内容
* @param filePath
* 成二維碼圖檔儲存路徑
* @return
*/
public static boolean createImg(String content, String filePath) {
boolean flag = false;
try {
MultiFormatWriter multiFormatWriter = new MultiFormatWriter();
BitMatrix bitMatrix = multiFormatWriter.encode(content, BarcodeFormat.QR_CODE, WIDTH, HEIGHT, hints);
// 圖檔輸出路徑
String code = content.split("=")[1]; // 裝置編号
File file = new File(filePath + "//PSD" + code + ".jpg");
if (!file.exists()) {
// 如果檔案夾不存在則建立
file.mkdirs();
}
// 輸出二維碼圖檔到檔案夾
MatrixToImageWriter.writeToFile(bitMatrix, "jpg", file);
flag = true;
} catch (IOException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
return flag;
}
/**
* 把帶logo的二維碼下面加上文字
* @param image
* @param words
* @return
*/
private static BufferedImage insertWords(BufferedImage image,String words){
// 新的圖檔,把帶logo的二維碼下面加上文字
if (StringUtils.isNotEmpty(words)) {
//建立一個帶透明色的BufferedImage對象
BufferedImage outImage = new BufferedImage(WIDTH, WORDHEIGHT, BufferedImage.TYPE_INT_ARGB);
Graphics2D outg = outImage.createGraphics();
setGraphics2D(outg);
// 畫二維碼到新的面闆
outg.drawImage(image, 0, 0, image.getWidth(), image.getHeight(), null);
// 畫文字到新的面闆
Color color=new Color(183,183,183);
outg.setColor(color);
// 字型、字型、字号
outg.setFont(new Font("微軟雅黑", Font.PLAIN, 18));
//文字長度
int strWidth = outg.getFontMetrics().stringWidth(words);
//總長度減去文字長度的一半 (居中顯示)
int wordStartX=(WIDTH - strWidth) / 2;
//height + (outImage.getHeight() - height) / 2 + 12
int wordStartY=HEIGHT+10;
// 畫文字
outg.drawString(words, wordStartX, wordStartY);
outg.dispose();
outImage.flush();
return outImage;
/*if (strWidth > 399) {
// 長度過長就截取前面部分 然後換行
String note1 = note.substring(0, note.length() / 2);
String note2 = note.substring(note.length() / 2, note.length());
int strWidth1 = outg.getFontMetrics().stringWidth(note1);
int strWidth2 = outg.getFontMetrics().stringWidth(note2);
outg.drawString(note1, 200 - strWidth1 / 2, height + (outImage.getHeight() - height) / 2 + 12);
BufferedImage outImage2 = new BufferedImage(1000, 1120, BufferedImage.TYPE_4BYTE_ABGR);
Graphics2D outg2 = outImage2.createGraphics();
outg2.drawImage(outImage, 0, 0, outImage.getWidth(), outImage.getHeight(), null);
outg2.setColor(Color.BLACK);
// 字型、字型、字号
outg2.setFont(new Font("宋體", Font.BOLD, 30));
// 畫文字
outg2.drawString(note2, 200 - strWidth2 / 2,outImage.getHeight() + (outImage2.getHeight() - outImage.getHeight()) / 2 + 5);
outg2.dispose();
outImage2.flush();
outImage = outImage2;
} */
}
return null;
}
/**
* @description 生成帶logo的二維碼圖檔 二維碼下面帶文字
* @param logoFile loge圖檔的路徑
* @param bgFile 背景圖檔的路徑
* @param codeFile 圖檔輸出路徑
* @param qrUrl 二維碼内容
* @param words 二維碼下面的文字
*/
public static void drawLogoQRCode(File logoFile,File bgFile, File codeFile, String qrUrl, String words) {
try {
MultiFormatWriter multiFormatWriter = new MultiFormatWriter();
// 參數順序分别為:編碼内容,編碼類型,生成圖檔寬度,生成圖檔高度,設定參數
BitMatrix bm = multiFormatWriter.encode(qrUrl, BarcodeFormat.QR_CODE, WIDTH, HEIGHT, hints);
BufferedImage image = new BufferedImage(WIDTH, HEIGHT, BufferedImage.TYPE_INT_RGB);
// 開始利用二維碼資料建立Bitmap圖檔,分别設為黑(0xFFFFFFFF)白(0xFF000000)兩色
for (int x = 0; x < WIDTH; x++) {
for (int y = 0; y < HEIGHT; y++) {
image.setRGB(x, y, bm.get(x, y) ? QRCOLOR : BGWHITE);
}
}
//把logo畫到二維碼上面
if (Objects.nonNull(logoFile) && logoFile.exists()) {
// 建構繪圖對象
Graphics2D g = image.createGraphics();
setGraphics2D(g);
// 讀取Logo圖檔
BufferedImage logo = ImageIO.read(logoFile);
// 開始繪制logo圖檔 等比縮放:(width * 2 / 10 height * 2 / 10)不需縮放直接使用圖檔寬高
//width * 2 / 5 height * 2 / 5 logo繪制在中心點位置
g.drawImage(logo, WIDTH * 2 / 5, HEIGHT * 2 / 5, logo.getWidth(), logo.getHeight(), null);
g.dispose();
logo.flush();
}
// 新的圖檔,把帶logo的二維碼下面加上文字
image=insertWords(image,words);
image.flush();
ImageIO.write(image, "png", codeFile);
} catch (Exception e) {
e.printStackTrace();
}
}
public static void main(String[] args) {
//logo
File logoFile = new File("G://picture/03.png");
//背景圖檔
File bgFile = new File("G://picture/01.png");
//生成圖檔
File qrCodeFile = new File("G://picture/02.png");
//二維碼内容
String url = "https://w.url.cn/s/AYmfAV3";
//二維碼下面的文字
String words = "PSD000001";
drawLogoQRCode(logoFile,bgFile, qrCodeFile, url, words);
}
}