Java二维码的解码和编码
发布时间:2020-12-14 23:20:48 所属栏目:Java 来源:网络整理
导读:今天PHP站长网 52php.cn把收集自互联网的代码分享给大家,仅供参考。 需要用到的Jar包:ZXing-core.jar和ZXing-javase.jar。 import java.io.File;import java.util.Hashtable; import com.google.zxing.BarcodeFormat;im
以下代码由PHP站长网 52php.cn收集自互联网 现在PHP站长网小编把它分享给大家,仅供参考
需要用到的Jar包:ZXing-core.jar和ZXing-javase.jar。
import java.io.File; import java.util.Hashtable; 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; //编码 public class QREncoder { public static void main(String[] args) throws Exception { String content = "hello world"; String encoding = "utf-8"; int width = 150; int height = 150; String format = "jpg"; File imagePath = new File("d:/test.jpg"); com.google.zxing.Writer writer = new MultiFormatWriter(); Hashtable<EncodeHintType,String> hints = new Hashtable<EncodeHintType,String>(2); hints.put(EncodeHintType.CHARACTER_SET,encoding); BitMatrix matrix = writer.encode(content,BarcodeFormat.QR_CODE,width,height,hints); MatrixToImageWriter.writeToFile(matrix,format,imagePath); } } import java.io.File; import java.util.Hashtable; 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.Reader; import com.google.zxing.Result; import com.google.zxing.client.j2se.BufferedImageLuminanceSource; import com.google.zxing.common.GlobalHistogramBinarizer; //解码 public class QRDecoder { public static void main(String[] args) throws Exception { File imagePath = new File("d:/test.jpg"); String encoding = "utf-8"; Reader reader = new MultiFormatReader(); LuminanceSource ls = new BufferedImageLuminanceSource(ImageIO.read(imagePath)); Binarizer b = new GlobalHistogramBinarizer(ls); Hashtable<DecodeHintType,String> hint1 = new Hashtable<DecodeHintType,String>(2); hint1.put(DecodeHintType.CHARACTER_SET,encoding); Result r = reader.decode(new BinaryBitmap(b),hint1); System.out.println(r.getText()); } } 以上内容由PHP站长网【52php.cn】收集整理供大家参考研究 如果以上内容对您有帮助,欢迎收藏、点赞、推荐、分享。 (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |