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  • 二维码utils希望对大家有帮助

    package cn.itcast.utils;
     
    import java.io.File;
    import java.nio.file.Path;
    import java.util.HashMap;
     
    import com.google.zxing.BarcodeFormat;
    import com.google.zxing.EncodeHintType;
    import com.google.zxing.MultiFormatWriter;
    import com.google.zxing.WriterException;
    import com.google.zxing.client.j2se.MatrixToImageWriter;
    import com.google.zxing.common.BitMatrix;
    import com.google.zxing.datamatrix.encoder.ErrorCorrection;
    import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;
     
    public class ZxingUtils {
        
        public static void main(String[] args) {
            //定义宽度,高度,内容,格式
            int width = 300;
            int higth = 300;
            String format = "png";
            String content = "http://www.itcast.cn/";
            //定义一个map
            HashMap hints = new HashMap<>();
            hints.put(EncodeHintType.CHARACTER_SET, "utf-8");
            hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.M);
            hints.put(EncodeHintType.MARGIN, 2);
            try {
                BitMatrix bitMatrix =  new MultiFormatWriter().encode(content,BarcodeFormat.QR_CODE, width, higth,hints);
                Path file = new File("D:/code/img.png").toPath();
                MatrixToImageWriter.writeToPath(bitMatrix, format, file );
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
     
    }
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  • 原文地址:https://www.cnblogs.com/guanzhuang/p/8214905.html
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