使用barcode4j条形码生成,
mvn管理
<!-- 条形码 --> <dependency> <groupId>net.sf.barcode4j</groupId> <artifactId>barcode4j-light</artifactId> <version>2.0</version> </dependency>
代码实现
import lombok.extern.slf4j.Slf4j; import org.apache.commons.lang3.StringUtils; import org.krysalis.barcode4j.HumanReadablePlacement; import org.krysalis.barcode4j.impl.code128.Code128Bean; import org.krysalis.barcode4j.impl.code39.Code39Bean; import org.krysalis.barcode4j.output.bitmap.BitmapCanvasProvider; import org.krysalis.barcode4j.tools.UnitConv; import java.awt.image.BufferedImage; import java.io.*; /** * 条形码工具类 * * @Author * @Date **/ @Slf4j public class BarcodeUtil { /** * 生成文件 * * @param msg * @param path * @return */ public static File generateFile(String msg, String path) { File file = new File(path); try { generate(msg, new FileOutputStream(file)); } catch (FileNotFoundException e) { throw new RuntimeException(e); } return file; } /** * 生成字节 * * @param msg * @return */ public static byte[] generate(String msg) { ByteArrayOutputStream ous = new ByteArrayOutputStream(); generate(msg, ous); return ous.toByteArray(); } /** * 生成到流 * * @param msg * @param ous */ public static void generate(String msg, OutputStream ous) { if (StringUtils.isEmpty(msg) || ous == null) { return; } Code128Bean bean = new Code128Bean(); // 精细度 final int dpi = 150; // module宽度 final double moduleWidth = UnitConv.in2mm(2.0f / dpi); // 配置对象 bean.setModuleWidth(moduleWidth); // bean.setWideFactor(3); bean.doQuietZone(false); //设置不显示字符 // bean.setMsgPosition(HumanReadablePlacement.HRP_NONE); String format = "image/png"; try { // 输出到流 BitmapCanvasProvider canvas = new BitmapCanvasProvider(ous, format, dpi, BufferedImage.TYPE_BYTE_BINARY, false, 0); // 生成条形码 bean.generateBarcode(canvas, msg); // 结束绘制 canvas.finish(); } catch (IOException e) { throw new RuntimeException(e); } } }