使用barcode4j条形码生成,
mvn管理
net.sf.barcode4j
barcode4j-light
2.0
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);
}
}
}