Java二维码、条码生成及解码工具类

功能描述

生成二维码、条码
解码
使用谷歌的zxing依赖

引入依赖

<dependency><groupId>com.google.zxing</groupId><artifactId>core</artifactId><version>3.4.1</version>
</dependency><dependency><groupId>com.google.zxing</groupId><artifactId>javase</artifactId><version>3.4.1</version>
</dependency>

代码

java">package com.qiangesoft.qrcode.utils;import com.google.zxing.*;
import com.google.zxing.client.j2se.BufferedImageLuminanceSource;
import com.google.zxing.client.j2se.MatrixToImageConfig;
import com.google.zxing.client.j2se.MatrixToImageWriter;
import com.google.zxing.common.BitMatrix;
import com.google.zxing.common.GlobalHistogramBinarizer;
import com.google.zxing.datamatrix.encoder.SymbolShapeHint;
import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.*;
import java.util.HashMap;
import java.util.Map;/*** 条码工具类** @author qiangesoft* @date 2024-05-06*/
public class QrcodeUtil {/*** 宽*/private static final int WIDTH = 300;/*** 高*/private static final int HEIGHT = 300;/*** 图片格式*/private static final String FORMAT = "png";/*** 黑色*/private static final int BLACK = 0xFF000000;/*** 白色*/private static final int WHITE = 0xFFFFFFFF;/*** 默认编码*/private static String CHARSET = "UTF-8";/*** 生成二维码** @param content* @param outputStream*/public static void generateQRCode(String content, OutputStream outputStream) {generateQRCode(content, WIDTH, HEIGHT, BLACK, WHITE, outputStream);}/*** 生成二维码** @param content* @param width* @param height* @param outputStream*/public static void generateQRCode(String content, int width, int height, OutputStream outputStream) {generateQRCode(content, width, height, BLACK, WHITE, outputStream);}/*** 生成二维码** @param content* @param width* @param height* @param onColor* @param offColor* @param outputStream*/public static void generateQRCode(String content, int width, int height, int onColor, int offColor, OutputStream outputStream) {// 自定义配置Map<EncodeHintType, Object> hints = new HashMap<>();hints.put(EncodeHintType.CHARACTER_SET, CHARSET);hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H);hints.put(EncodeHintType.MARGIN, 1);hints.put(EncodeHintType.DATA_MATRIX_SHAPE, SymbolShapeHint.FORCE_SQUARE);generate(content, BarcodeFormat.QR_CODE, width, height, hints, onColor, offColor, FORMAT, outputStream);}/*** 生成条形码** @param content* @param outputStream*/public static void generateCode128(String content, OutputStream outputStream) {generateCode128(content, WIDTH, HEIGHT, BLACK, WHITE, outputStream);}/*** 生成条形码** @param content* @param outputStream*/public static void generateCode128(String content, int width, int height, OutputStream outputStream) {generateCode128(content, width, height, BLACK, WHITE, outputStream);}/*** 生成条形码** @param content* @param outputStream*/public static void generateCode128(String content, int width, int height, int onColor, int offColor, OutputStream outputStream) {// 自定义配置Map<EncodeHintType, Object> hints = new HashMap<>();hints.put(EncodeHintType.CHARACTER_SET, CHARSET);hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H);hints.put(EncodeHintType.MARGIN, 1);hints.put(EncodeHintType.DATA_MATRIX_SHAPE, SymbolShapeHint.FORCE_SQUARE);generate(content, BarcodeFormat.CODE_128, width, height, hints, onColor, offColor, FORMAT, outputStream);}/*** 生成码** @param content       内容* @param barcodeFormat 条码格式* @param width         宽* @param height        高* @param hints         参数* @param onColor       码颜色* @param offColor      底色* @param imageFormat   图片格式* @param outputStream  输出流*/private static void generate(String content, BarcodeFormat barcodeFormat, int width, int height, Map<EncodeHintType, Object> hints, int onColor, int offColor, String imageFormat, OutputStream outputStream) {try {// 生成二维码MultiFormatWriter writer = new MultiFormatWriter();BitMatrix matrix = writer.encode(content, barcodeFormat, width, height, hints);// 写入流中MatrixToImageConfig matrixToImageConfig = new MatrixToImageConfig(onColor, offColor);MatrixToImageWriter.writeToStream(matrix, imageFormat, outputStream, matrixToImageConfig);} catch (Exception e) {throw new RuntimeException("二维码生成异常");}}/*** 解码** @param inputStream*/public static void decode(InputStream inputStream) {// 自定义配置Map<DecodeHintType, String> hints = new HashMap<>();hints.put(DecodeHintType.CHARACTER_SET, CHARSET);try {// 读图片BufferedImage image = ImageIO.read(inputStream);LuminanceSource source = new BufferedImageLuminanceSource(image);// 解析BinaryBitmap bitmap = new BinaryBitmap(new GlobalHistogramBinarizer(source));Result res = new MultiFormatReader().decode(bitmap, hints);System.out.println(res.getText());} catch (Exception e) {throw new RuntimeException(e);}}public static void main(String[] args) throws FileNotFoundException {generateQRCode("aaaaaaaaaa", new FileOutputStream("C:\\Users\\16\\Desktop\\qrcode.png"));generateCode128("aaaaaaaaaa", new FileOutputStream("C:\\Users\\16\\Desktop\\code128.png"));decode(new FileInputStream("C:\\Users\\16\\Desktop\\qrcode.png"));}
}