本文實(shí)例為大家分享了java二維碼的實(shí)現(xiàn)代碼，供大家參考，具體內(nèi)容如下
這次用到的jar包是zxing，沒有用到core的jar包
先導(dǎo)入zxing.jar包
生成二維碼
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package cn.huse.erweima;import java.io.File;import java.util.HashMap;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;/** * 生成二維碼 * */public class CreateQRCode { public static void main(String[] args) { int width = 300; int height = 300; String format = "gif"; String content = "www.baidu.com"; //定義二維碼的參數(shù) HashMap hints = new HashMap<>(); hints.put(EncodeHintType.CHARACTER_SET, "utf-8"); hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.M); try { BitMatrix matrix = new MultiFormatWriter().encode(content, BarcodeFormat.QR_CODE, width, height,hints); File file = new File("e:"+File.separator+"new.gif"); MatrixToImageWriter.writeToFile(matrix, format, file); } catch (Exception e) { e.printStackTrace(); } }} |
解析二維碼
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package cn.huse.erweima;import java.awt.image.BufferedImage;import java.io.File;import java.io.IOException;import java.util.HashMap;import javax.imageio.ImageIO;import com.google.zxing.BinaryBitmap;import com.google.zxing.EncodeHintType;import com.google.zxing.MultiFormatReader;import com.google.zxing.NotFoundException;import com.google.zxing.Result;import com.google.zxing.client.j2se.BufferedImageLuminanceSource;import com.google.zxing.common.HybridBinarizer;//解析二維碼public class ReadQRCode { public static void main(String[] args) { MultiFormatReader formatReader = new MultiFormatReader(); File file = new File("e:"+File.separator+"new.gif"); try { BufferedImage image = ImageIO.read(file); BinaryBitmap binaryBitmap = new BinaryBitmap(new HybridBinarizer(new BufferedImageLuminanceSource(image))); HashMap hints = new HashMap<>(); hints.put(EncodeHintType.CHARACTER_SET, "utf-8"); Result result = formatReader.decode(binaryBitmap,hints); System.out.println(result.toString()); System.out.println(result.getBarcodeFormat()); System.out.println(result.getText()); } catch (NotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } }} |
以上就是本文的全部內(nèi)容，希望對大家的學(xué)習(xí)有所幫助，也希望大家多多支持服務(wù)器之家。
