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用google ZXing生成二维码、一维码的小例子

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用google ZXing生成二维码、一维码的小例子

pom 依赖

增加依赖

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<dependency>
  <groupId>com.google.zxing</groupId>
  <artifactId>core</artifactId>
  <version>3.3.3</version>
</dependency>
<dependency>
  <groupId>com.google.zxing</groupId>
  <artifactId>javase</artifactId>
  <version>3.3.3</version>
</dependency>

java 代码

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import com.google.zxing.BarcodeFormat;
import com.google.zxing.EncodeHintType;
import com.google.zxing.MultiFormatWriter;
import com.google.zxing.client.j2se.MatrixToImageWriter;
import com.google.zxing.common.BitMatrix;
import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;

import java.io.FileOutputStream;
import java.util.Hashtable;

/**
 * 创建二维码、一维码的例子
 */
public class Qrcode {

    public static void main(String[] args) throws Exception {
        createBarCode("012341");
        createQrCode("http://www.163.com");
    }

    /**
     * 创建二维码
     * @param content
     * @throws Exception
     */
    private static void createQrCode(String content) throws Exception{
        String format = "png";
        MultiFormatWriter multiFormatWriter = new MultiFormatWriter();
        Hashtable<EncodeHintType, Object> hints = new Hashtable<EncodeHintType, Object>();
        hints.put(EncodeHintType.CHARACTER_SET, "utf-8");
        hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H);// 设置二维码排错率，可选L(7%)、M(15%)、Q(25%)、H(30%)
        hints.put(EncodeHintType.MARGIN, 10);
        BitMatrix bitMatrix = multiFormatWriter.encode(content, BarcodeFormat.QR_CODE, 300, 300, hints);

        FileOutputStream fos = new FileOutputStream("target/qrcode.png");
        MatrixToImageWriter.writeToStream(bitMatrix, format, fos);
        fos.close();
    }



    /**
     * 一维条码
     * @param text
     * @throws Exception
     */
    private static void createBarCode(String text) throws Exception{
        String format = "png";
        Hashtable hints= new Hashtable();
        hints.put(EncodeHintType.CHARACTER_SET, "utf-8");

        String content = "http://www.163.com";
        BitMatrix bitMatrix = new MultiFormatWriter().encode(content, BarcodeFormat.CODE_128, 300, 80, hints);

        FileOutputStream fos = new FileOutputStream("target/barcode.png");
        MatrixToImageWriter.writeToStream(bitMatrix, format, fos);
        fos.close();
    }
}