package test;import java.awt.image.BufferedImage;import java.io.File;import java.io.IOException;import java.util.HashMap;import java.util.Map;import javax.imageio.ImageIO;import org.junit.Test;import com.google.zxing.BarcodeFormat;import com.google.zxing.Binarizer;import com.google.zxing.BinaryBitmap;import com.google.zxing.EncodeHintType;import com.google.zxing.LuminanceSource;import com.google.zxing.MultiFormatReader;import com.google.zxing.MultiFormatWriter;import com.google.zxing.NotFoundException;import com.google.zxing.Result;import com.google.zxing.WriterException;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;public class Erweima {    /**     * 生成二维码     */    @Test    public void create(){         try {            String content = "https://www.baidu.com/";//一般放url,比如微信，扫描后直接跳转到指定url链接             String path = "E:/";//生成的二维码指定一个地方存放             MultiFormatWriter multiFormatWriter = new MultiFormatWriter();             Map hints = new HashMap();             hints.put(EncodeHintType.CHARACTER_SET, "UTF-8");             BitMatrix bitMatrix = multiFormatWriter.encode(content, BarcodeFormat.QR_CODE, 400, 400,hints);             File file1 = new File(path,"love.jpg");//生成的二维码名字love.jpg，可以自己指定叫什么名字，以图片的格式             MatrixToImageWriter.writeToFile(bitMatrix, "jpg", file1);        } catch (WriterException e) {            e.printStackTrace();        } catch (IOException e) {            e.printStackTrace();        }    }    /**     * 解析二维码     */    @Test    public void get(){        try {            MultiFormatReader formatReader = new MultiFormatReader();            String filePath = "E:/love.jpg";            File file = new File(filePath);            BufferedImage image = ImageIO.read(file);;            LuminanceSource source = new BufferedImageLuminanceSource(image);            Binarizer  binarizer = new HybridBinarizer(source);            BinaryBitmap binaryBitmap = new BinaryBitmap(binarizer);            Map hints = new HashMap();            hints.put(EncodeHintType.CHARACTER_SET, "UTF-8");            Result result = formatReader.decode(binaryBitmap,hints);            System.out.println("result = "+ result.toString());            System.out.println("resultFormat = "+ result.getBarcodeFormat());            System.out.println("resultText = "+ result.getText());        } catch (NotFoundException e) {            e.printStackTrace();        } catch (IOException e) {            e.printStackTrace();        }    }}

 所需jar包：https://files.cnblogs.com/files/fpc-syq/zxing%E7%94%9F%E6%88%90%E4%BA%8C%E7%BB%B4%E7%A0%81%EF%BC%88jdk1.6%E4%B8%8B%E4%BA%B2%E6%B5%8B%E5%8F%AF%E7%94%A8%EF%BC%89.zip