Java读取二维码图片内容,识别路径下所有二维码图片内容

最新推荐文章于 2025-05-04 09:08:19 发布

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最新推荐文章于 2025-05-04 09:08:19 发布

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分类专栏： Java 文章标签： Java批量识别二维码

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需要两个jar
<dependency>
<groupId>com.google.zxing</groupId>
<artifactId>javase</artifactId>
<version>3.4.0</version>
</dependency>

<dependency>
<groupId>com.google.zxing</groupId>
<artifactId>core</artifactId>
<version>3.4.0</version>
</dependency>

java代码：

package test;

import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.imageio.ImageIO;

import com.google.zxing.Binarizer;
import com.google.zxing.BinaryBitmap;
import com.google.zxing.DecodeHintType;
import com.google.zxing.LuminanceSource;
import com.google.zxing.MultiFormatReader;
import com.google.zxing.NotFoundException;
import com.google.zxing.client.j2se.BufferedImageLuminanceSource;
import com.google.zxing.common.HybridBinarizer;

public class Codes {

public static List<String> lists = new ArrayList<>();

   /**
   * 解析读取二维码
   *
   * @param qrCodePath 二维码图片路径
   * @return
   */
   public static String decodeQRcode(String qrCodePath) {
       BufferedImage image;
       String qrCodeText = null;
       try {
           image = ImageIO.read(new File(qrCodePath));
           LuminanceSource source = new BufferedImageLuminanceSource(image);
           Binarizer binarizer = new HybridBinarizer(source);
           BinaryBitmap binaryBitmap = new BinaryBitmap(binarizer);
           Map<DecodeHintType, Object> hints = new HashMap<DecodeHintType, Object>();
           hints.put(DecodeHintType.CHARACTER_SET, "UTF-8");
           // 对图像进行解码
           com.google.zxing.Result result = new MultiFormatReader().decode(binaryBitmap, hints);
           qrCodeText = result.getText();
       } catch (IOException e) {
           e.printStackTrace();
       } catch (NotFoundException e) {
           e.printStackTrace();
       }
       return qrCodeText;
   }

   public static void qu(String path) {
       File f = new File(path);
       String[] listFiles = f.list();
       for (String filePath : listFiles) {
           String decodeQRcode = Codes.decodeQRcode(path + "\\" + filePath);
           lists.add(decodeQRcode);
       }
   }

   public static void main(String[] args) {
       Codes.qu("C:\\\\codes\\\\code1_50");
       System.out.println(lists);
   }
}

转自：https://www.open-open.com/code/view/1453520722495