标签：条形码 String 解码 imgPath zxing new import 生成 com

条形码生成及解码、二维码生成及解码

不多说，直接上代码：

import java.awt.image.BufferedImage;
import java.io.File;
import java.util.Hashtable;

import javax.imageio.ImageIO;

import com.google.zxing.BarcodeFormat;
import com.google.zxing.BinaryBitmap;
import com.google.zxing.DecodeHintType;
import com.google.zxing.EncodeHintType;
import com.google.zxing.LuminanceSource;
import com.google.zxing.MultiFormatReader;
import com.google.zxing.MultiFormatWriter;
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 Test {

	/**
	 * 条形码编码
	 * @param contents
	 * @param width
	 * @param height
	 * @param imgPath
	 */
	public static void encode(String contents, int width, int height, String imgPath) {
		int codeWidth = 3 + // start guard
				(7 * 6) + // left bars
				5 + // middle guard
				(7 * 6) + // right bars
				3; // end guard
		codeWidth = Math.max(codeWidth, width);
		try {
			BitMatrix bitMatrix = new MultiFormatWriter().encode(contents,
					BarcodeFormat.EAN_13, codeWidth, height, null);

			MatrixToImageWriter
					.writeToFile(bitMatrix, "png", new File(imgPath));

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

	/**
	 * 条形码解码
	 * @param imgPath
	 * @return String
	 */
	public static String decode(String imgPath) {
		BufferedImage image = null;
		Result result = null;
		try {
			image = ImageIO.read(new File(imgPath));
			if (image == null) {
				System.out.println("the decode image may be not exit.");
			}
			LuminanceSource source = new BufferedImageLuminanceSource(image);
			BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));

			result = new MultiFormatReader().decode(bitmap, null);
			return result.getText();
		} catch (Exception e) {
			e.printStackTrace();
		}
		return null;
	}
	
	/**
	 * 二维码编码
	 * @param contents
	 * @param width
	 * @param height
	 * @param imgPath
	 */
	public static void encode2(String contents, int width, int height, String imgPath) {
		Hashtable<EncodeHintType, Object> hints = new Hashtable<EncodeHintType, Object>();
		// 指定纠错等级
		hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.L);
		// 指定编码格式
		hints.put(EncodeHintType.CHARACTER_SET, "GBK");
		try {
			BitMatrix bitMatrix = new MultiFormatWriter().encode(contents,
					BarcodeFormat.QR_CODE, width, height, hints);

			MatrixToImageWriter
					.writeToFile(bitMatrix, "png", new File(imgPath));

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

	/**
	 * 二维码解码
	 * @param imgPath
	 * @return String
	 */
	public static String decode2(String imgPath) {
		BufferedImage image = null;
		Result result = null;
		try {
			image = ImageIO.read(new File(imgPath));
			if (image == null) {
				System.out.println("the decode image may be not exit.");
			}
			LuminanceSource source = new BufferedImageLuminanceSource(image);
			BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));

			Hashtable<DecodeHintType, Object> hints = new Hashtable<DecodeHintType, Object>();
			hints.put(DecodeHintType.CHARACTER_SET, "GBK");

			result = new MultiFormatReader().decode(bitmap, hints);
			return result.getText();
		} catch (Exception e) {
			e.printStackTrace();
		}
		return null;
	}

	/**
	 *  测试
	 * @param args
	 */
	public static void main(String[] args) {

		// 条形码
		String imgPath = "target\\tiaoxm.png"; //条形码路径
		String contents = "66666666";
		int width = 105, height = 50;
		
		ZxingHandler.encode(contents, width, height, imgPath);
		System.out.println("finished zxing EAN-13 encode.");

		String decodeContent = ZxingHandler.decode(imgPath);
		System.out.println("解码内容如下：" + decodeContent);
		System.out.println("finished zxing EAN-13 decode.");
		
		// 二维码
		String imgPath2 = "target\\erwm.png";  //二维码路径
		String contents2 = "Hello, world!"
				+ "\nBlog [ http:/www.baidu.com ]"
				+ "\nEMail [ 66666666@qq.com ]";
		int width2 = 300, height2 = 300;

		ZxingHandler.encode2(contents2, width2, height2, imgPath2);
		System.out.println("finished zxing encode.");

		String decodeContent2 = ZxingHandler.decode2(imgPath2);
		System.out.println("解码内容如下：" + decodeContent2);
		System.out.println("finished zxing decode.");
		
	}
    
}

标签：条形码,String,解码,imgPath,zxing,new,import,生成,com
来源： https://blog.csdn.net/qq_36216193/article/details/114078689

本站声明： 1. iCode9 技术分享网（下文简称本站）提供的所有内容，仅供技术学习、探讨和分享；
2. 关于本站的所有留言、评论、转载及引用，纯属内容发起人的个人观点，与本站观点和立场无关；
3. 关于本站的所有言论和文字，纯属内容发起人的个人观点，与本站观点和立场无关；
4. 本站文章均是网友提供，不完全保证技术分享内容的完整性、准确性、时效性、风险性和版权归属；如您发现该文章侵犯了您的权益，可联系我们第一时间进行删除；
5. 本站为非盈利性的个人网站，所有内容不会用来进行牟利，也不会利用任何形式的广告来间接获益，纯粹是为了广大技术爱好者提供技术内容和技术思想的分享性交流网站。