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35 lines
1.3 KiB
35 lines
1.3 KiB
6 years ago
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// 自定义函数生成UPC条形码
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package com.fr.function;
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import com.fr.script.AbstractFunction;
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import org.krysalis.barcode4j.impl.upcean.UPCABean;
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import org.krysalis.barcode4j.output.bitmap.BitmapCanvasProvider;
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import org.krysalis.barcode4j.tools.UnitConv;
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import java.awt.image.BufferedImage;
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public class Upc extends AbstractFunction {
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public Object run(Object[] args) {
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if (args == null || args.length < 1) {
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return "参数不对，必须有一个参数";
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}
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try {
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// 创建一个UPC编码生成器
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UPCABean bean = new UPCABean();
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// 设置条形码高度，BufferedImage.TYPE_BYTE_BINARY代表常量值12，可直接使用常量值
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final int dpi = Integer.parseInt(args[1].toString());
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bean.setModuleWidth(UnitConv.in2mm(1.0f / dpi));
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bean.doQuietZone(false);
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BitmapCanvasProvider canvas = new BitmapCanvasProvider(dpi,
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BufferedImage.TYPE_BYTE_BINARY, false, 0);
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// 创建条形码
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bean.generateBarcode(canvas, String.valueOf(args[0]));
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canvas.finish();
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// 返回图片显示
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return canvas.getBufferedImage();
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} catch (Exception e) {
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e.printStackTrace();
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}
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return args[0];
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}
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}
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