需要的jar包，只有jbarcode.jar
链接: https://pan.baidu.com/s/1o9oDPB8 密码: x367
public class Main {
//设置条形码高度
private static final int BARCODE_HEIGHT = 40;
//设置条形码默认分辨率
private static final int BARCODE_DPI = ImageUtil.DEFAULT_DPI;
//设置条形码字体样式
private static final String FONT_FAMILY = "console";
//设置条形码字体大小
private static final int FONT_SIZE = 15;
//设置条形码文本
public static String TEXT = "";
//创建jbarcode
private static JBarcode jbc = null;
public static void main(String[] args) {
List<String> list=new ArrayList<String>();
list.add("KJ4.1-0127-0001");
list.add("KJ4.1-0128-0001");
list.add("KJ4.1-0129-0001");
list.add("KJ4.1-0130-0001");
if(list!=null && list.size()>0){
for(String message:list){
Main.createBarcode(message, new File("D:\\test\\"+message+".png"),"No");
}
}
}
public static JBarcode getJBarcode() throws InvalidAtributeException {
/**
* 参考设置样式：
*barcode.setEncoder(Code128Encoder.getInstance()); //设置编码
*barcode.setPainter(WidthCodedPainter.getInstance());// 设置Painter
*barcode.setTextPainter(BaseLineTextPainter.getInstance()); //设置TextPainter
*barcode.setBarHeight(17); //设置高度
*barcode.setWideRatio(Double.valueOf(30).doubleValue());// 设置宽度比率
*barcode.setXDimension(Double.valueOf(2).doubleValue()); // 设置尺寸，大小 密集程度
*barcode.setShowText(true); //是否显示文本
*barcode.setCheckDigit(true); //是否检查数字
*barcode.setShowCheckDigit(false); //是否显示检查数字
*/
if (jbc == null) {
//生成code128
jbc = JBarcodeFactory.getInstance().createCode128();
jbc.setEncoder(Code128Encoder.getInstance());
jbc.setTextPainter(CustomTextPainter.getInstance());
jbc.setBarHeight(BARCODE_HEIGHT);
jbc.setXDimension(Double.valueOf(0.8).doubleValue());
jbc.setShowText(true);
}
return jbc;
}
/**
* @descript:生成条形码文件
* @param message 条形码内容
* @param file 生成文件
*/
public static void createBarcode(String message, File file,String text) {
try {
FileOutputStream fos = new FileOutputStream(file);
createBarcode(message, fos,text);
fos.close();
} catch (IOException e) {
throw new RuntimeException(e);
}
}
/**
* @descript:生成条形码并写入指定输出流
* @param message 条形码内容
* @param os 输出流
*/
public static void createBarcode(String message, OutputStream os,String text) {
try {
//设置条形码文本
TEXT=text;
//创建条形码的BufferedImage图像
BufferedImage image = getJBarcode().createBarcode(message);
ImageUtil.encodeAndWrite(image, ImageUtil.PNG, os, BARCODE_DPI, BARCODE_DPI);
os.flush();
} catch (Exception e) {
throw new RuntimeException(e);
}
}
/**
* 静态内部类
* 自定义的 TextPainter， 允许定义字体，大小，文本等
* 参考底层实现：BaseLineTextPainter.getInstance()
*/
protected static class CustomTextPainter implements TextPainter {
private static CustomTextPainter instance =new CustomTextPainter();
public static CustomTextPainter getInstance() {
return instance;
}
public void paintText(BufferedImage barCodeImage, String text, int width) {
//绘图
Graphics g2d = barCodeImage.getGraphics();
//创建字体
Font font = new Font(FONT_FAMILY, Font.PLAIN, FONT_SIZE * width);
g2d.setFont(font);
FontMetrics fm = g2d.getFontMetrics();
int height = fm.getHeight();
int center = (barCodeImage.getWidth() - fm.stringWidth(text)) / 2;
g2d.setColor(Color.WHITE);
g2d.fillRect(0, 0, barCodeImage.getWidth(), barCodeImage.getHeight() * 1 / 20);
g2d.fillRect(0, barCodeImage.getHeight() - (height * 9 / 10), barCodeImage.getWidth(), (height * 9 / 10));
g2d.setColor(Color.BLACK);
//绘制文本
g2d.drawString(TEXT, 0, 145);
//绘制条形码
g2d.drawString(text, center, barCodeImage.getHeight() - (height / 10) - 2);
}
}
}