java二维码生成的方法

java二维码生成的方法

本文实例为大家分享了java二维码的实现代码，供大家参考，具体内容如下

这次用到的jar包是zxing，没有用到core的jar包

先导入zxing.jar包

生成二维码

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;

/**

* 生成二维码

*

*/

public class CreateQRCode {

public static void main(String[] args) {

int width = 300;

int height = 300;

String format = "gif";

String content = "baidu.com";

//定义二维码的参数

HashMap hints = new HashMap<>();

hints.put(EncodeHintType.CHARACTER_SET, "utf-8OwxFzaNFg");

hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.M);

try {

BitMatrix matrix = new MultiFormatWriter().encode(content, Barcodhttp://eFormat.QR_CODE, width, height,hints);

File file = new File("e:"+File.separator+"new.gif");

MatrixToImageWriter.writeToFile(matrix, format, file);

} catch (Exception e) {

e.printStackTrace();

}

}

}

解析二维码

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;

/http:///解析二维码

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();

}

}

}

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