zxing生產二維碼

package zxing;

import java.io.File;
import java.io.IOException;
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.qrcode.decoder.ErrorCorrectionLevel;

public class CreateQRCode 
{
	public static void main(String[] args) {
		int width = 300;
		int height = 300;
		String fromat = "png";
		String context = "一去二三裏";
		
		// 定義二維碼的參數
		HashMap hints = new HashMap();
		hints.put(EncodeHintType.CHARACTER_SET, "utf-8");
		hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.M);
		hints.put(EncodeHintType.MARGIN, 2);
		
		// 生成二維碼
		try {
			BitMatrix bitMatrix = new MultiFormatWriter().encode(context, BarcodeFormat.QR_CODE, width, height, hints);
			
			Path file = new File("D:/img2.png").toPath();
			MatrixToImageWriter.writeToPath(bitMatrix, fromat, file);
		} catch (WriterException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}
		
	}
}