Java: Generate Code 39 1D format code

Below snippet is used to generate code 39 1D format code.

Map<EncodeHintType, ErrorCorrectionLevel> hashMap = new HashMap<EncodeHintType, ErrorCorrectionLevel>();
hashMap.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H);

BitMatrix bitMatrix = new MultiFormatWriter().encode(new String(message.getBytes(encodingFormat)),
		BarcodeFormat.CODE_39, imageWidth, imageHeight);

String fileFormat = filePath.substring(filePath.lastIndexOf('.') + 1);
MatrixToImageWriter.writeToPath(bitMatrix, fileFormat, Paths.get(filePath));

 

Find the below working application.

 

Code391DFormatUtil.java

 

package com.sample.app.util;

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.nio.charset.Charset;
import java.nio.file.Paths;
import java.util.HashMap;
import java.util.Map;

import javax.imageio.ImageIO;

import com.google.zxing.BarcodeFormat;
import com.google.zxing.BinaryBitmap;
import com.google.zxing.EncodeHintType;
import com.google.zxing.MultiFormatReader;
import com.google.zxing.MultiFormatWriter;
import com.google.zxing.NotFoundException;
import com.google.zxing.Result;
import com.google.zxing.client.j2se.BufferedImageLuminanceSource;
import com.google.zxing.client.j2se.MatrixToImageWriter;
import com.google.zxing.common.BitMatrix;
import com.google.zxing.common.HybridBinarizer;
import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;

public class Code391DFormatUtil {
	public static boolean generateCode(String message, String filePath, Charset encodingFormat, int imageWidth,
			int imageHeight) {

		try {
			Map<EncodeHintType, ErrorCorrectionLevel> hashMap = new HashMap<EncodeHintType, ErrorCorrectionLevel>();
			hashMap.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H);

			BitMatrix bitMatrix = new MultiFormatWriter().encode(new String(message.getBytes(encodingFormat)),
					BarcodeFormat.CODE_39, imageWidth, imageHeight);

			String fileFormat = filePath.substring(filePath.lastIndexOf('.') + 1);
			MatrixToImageWriter.writeToPath(bitMatrix, fileFormat, Paths.get(filePath));
			return true;

		} catch (Exception e) {
			e.printStackTrace();
			return false;
		}

	}

	public static String getInfoFromCode(String filePath, Charset encodingFormat)
			throws FileNotFoundException, IOException, NotFoundException {
		BinaryBitmap binaryBitmap = new BinaryBitmap(
				new HybridBinarizer(new BufferedImageLuminanceSource(ImageIO.read(new FileInputStream(filePath)))));
		Result result = new MultiFormatReader().decode(binaryBitmap);
		return result.getText();
	}
}

Code391DFormatDemo.java

package com.sample.app;

import java.io.FileNotFoundException;
import java.io.IOException;
import java.nio.charset.StandardCharsets;

import com.google.zxing.NotFoundException;
import com.sample.app.util.Aztec2DBarcodeUtil;
import com.sample.app.util.Code391DFormatUtil;

public class Code391DFormatDemo {
	public static void main(String args[]) throws FileNotFoundException, NotFoundException, IOException {
		String filePath = "/Users/Shared/secret.png";

		boolean isQRCodeGenerated = Code391DFormatUtil.generateCode("123456789", filePath, StandardCharsets.UTF_8, 400,
				100);

		if (isQRCodeGenerated) {
			System.out.println("code generated successfully");
		} else {
			System.out.println("code generation failed");
		}

		String information = Aztec2DBarcodeUtil.getInfoFromCode(filePath, StandardCharsets.UTF_8);
		System.out.println("Retrieved message is : " + information);

	}
}

Output

code generated successfully
Retrieved message is : 123456789

Generated secret.png file

 

 

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