java二维码生成

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.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="jpg";

        String content="http://www.zjjansens.com";

        //定义二维码参数

        HashMap hashMap=new HashMap();

        hashMap.put(EncodeHintType.CHARACTER_SET, "UTF-8");

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

        hashMap.put(EncodeHintType.MARGIN,2);

        try {

			BitMatrix bitMatrix=new MultiFormatWriter().encode(content, BarcodeFormat.QR_CODE, width, height,hashMap);

			Path file=new File("d:/img.jpg").toPath();

			MatrixToImageWriter.writeToPath(bitMatrix,format, file);;

		} catch (Exception e) {

			e.printStackTrace();

		}

	}

}
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java二维码生成

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