属于Java的二维码解析 - 解析二维码内容

记快乐符号:
利用google.zxing 获取二维码图片内容

import com.google.zxing.BarcodeFormat;
import com.google.zxing.Binarizer;
import com.google.zxing.BinaryBitmap;
import com.google.zxing.DecodeHintType;
import com.google.zxing.LuminanceSource;
import com.google.zxing.Result;
import com.google.zxing.client.j2se.BufferedImageLuminanceSource;
import com.google.zxing.common.HybridBinarizer;
import com.google.zxing.qrcode.QRCodeReader;
import java.awt.image.BufferedImage;
import java.io.File;
import java.util.HashMap;
import java.util.Map;
import javax.imageio.ImageIO;
/**
 * @description: TestQrcode <br>
 * @since: 2021/10/11 5:01 下午 <br>
 * @author: 释槐～ <br>
 * @version: <br>
 */
public class TestQrcode {
  public static void main(String[] args) {
    System.out.println(decode(new File("/WechatIMG63.jpeg")));;
  }
  /**
   * 解析图片文件上的二维码
   *
   * @param imageFile 图片文件
   * @return 解析的结果，null表示解析失败
   */
  public static String decode(File imageFile) {
    try {
      BufferedImage image = ImageIO.read(imageFile);
      LuminanceSource luminanceSource = new BufferedImageLuminanceSource(image);
      Binarizer binarizer = new HybridBinarizer(luminanceSource);
      BinaryBitmap binaryBitmap = new BinaryBitmap(binarizer);
      Map<DecodeHintType, Object> hints = new HashMap<>();
      hints.put(DecodeHintType.CHARACTER_SET, "utf-8");
      hints.put(DecodeHintType.TRY_HARDER, Boolean.TRUE);
      hints.put(DecodeHintType.POSSIBLE_FORMATS, BarcodeFormat.QR_CODE);
      Result result = new QRCodeReader().decode(binaryBitmap, hints);
      System.out.println(result.toString());
      return result.getText();
    } catch (Exception e) {
      e.printStackTrace();
      return null;
    }
  }
}

pom 引入

<!-- 二维码支持包 -->
        <dependency>
            <groupId>com.google.zxing</groupId>
            <artifactId>core</artifactId>
            <version>3.2.0</version>
        </dependency>
        <dependency>
            <groupId>com.google.zxing</groupId>
            <artifactId>javase</artifactId>
            <version>3.2.0</version>
        </dependency>