com.zcj.util.zxing.UtilZxing Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of zutil Show documentation
Java Utils.
There is a newer version: 1.1.38
package com.zcj.util.zxing;

import java.awt.image.BufferedImage;
import java.io.File;
import java.io.OutputStream;
import java.nio.file.FileSystems;
import java.nio.file.Path;
import java.util.HashMap;
import java.util.Map;

import javax.imageio.ImageIO;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.google.zxing.BarcodeFormat;
import com.google.zxing.Binarizer;
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;

/**
 * 条码/二维码的生成和识别工具
 * 
 * 依赖第三方库：'com.google.zxing:core:3.0.0' 

 * 依赖第三方库：'com.google.zxing:javase:3.0.0'
 *
 * @author [email protected]
 * @since 2019/6/13
 */
public class UtilZxing {

    private static final Logger logger = LoggerFactory.getLogger(UtilZxing.class);

    /**
     * 生成二维码
     *
     * @param content  文本内容
     * @param filePath 二维码图片存储的文件夹路径；例："E:/"
     * @param fileName 二维码文件名；例："a.png"
     * @param width    二维码图片的宽度
     * @param height   二维码图片的高度
     * @return 返回true表示生成成功；返回false表示生成失败
     */
    public static boolean toQrCodeImg(String content, String filePath, String fileName, int width, int height) {
        try {
            String format = "png";// 图像类型
            Map hints = new HashMap<>(16);
            hints.put(EncodeHintType.CHARACTER_SET, "UTF-8");
            hints.put(EncodeHintType.MARGIN, 0);
            BitMatrix bitMatrix = new MultiFormatWriter().encode(content, BarcodeFormat.QR_CODE, width, height, hints);// 生成矩阵
            Path path = FileSystems.getDefault().getPath(filePath, fileName);
            MatrixToImageWriter.writeToPath(bitMatrix, format, path);
            return true;
        } catch (Exception e) {
            logger.error(e.getMessage(), e);
            return false;
        }
    }

    /**
     * 解析二维码
     *
     * @param filePath 二维码图片的物理路径
     * @return 返回NULL表示解析失败
     */
    public static String fromQrCodeImg(String filePath) {
        try {
            BufferedImage image = ImageIO.read(new File(filePath));
            LuminanceSource source = new BufferedImageLuminanceSource(image);
            Binarizer binarizer = new HybridBinarizer(source);
            BinaryBitmap binaryBitmap = new BinaryBitmap(binarizer);
            Map hints = new HashMap(16);
            hints.put(DecodeHintType.CHARACTER_SET, "UTF-8");
            Result result = new MultiFormatReader().decode(binaryBitmap, hints);// 对图像进行解码
            return result.getText();
        } catch (Exception e) {
            logger.error(e.getMessage(), e);
            return null;
        }
    }

    /**
     * 生成条码
     *
     * @param contents 文本内容
     * @param width    条码图片的宽度
     * @param height   条码图片的高度
     * @param path     条码保存的物理路径
     * @return boolean
     */
    public static boolean toBarCodeImg(String contents, int width, int height, String path) {
        return ZxingEAN13EncoderHandler.encode(contents, width, height, path);
    }

    /**
     * 生成条码
     *
     * @param contents 文本内容
     * @param width    条码图片的宽度
     * @param height   条码图片的高度
     * @param stream   输出流
     * @return boolean
     */
    public static boolean toBarCodeImg(String contents, int width, int height, OutputStream stream) {
        return ZxingEAN13EncoderHandler.encode(contents, width, height, stream);
    }

    /**
     * 解析条码
     *
     * @param imgPath 条码文件物理路径
     * @return 返回NULL表示解析失败
     */
    public static String fromBarCodeImg(String imgPath) {
        return ZxingEAN13DecoderHandler.decode(imgPath);
    }

}