二维码

import java.awt.Color;
import java.awt.Graphics2D;
import java.awt.image.BufferedImage;
import java.io.File;
import javax.imageio.ImageIO;
import com.swetake.util.Qrcode;

public class QRCodeEncoderHandler {

	public void encoderQRCode(String content, String imgPath) {

		try {

			Qrcode qrcodeHandler = new Qrcode();
			qrcodeHandler.setQrcodeErrorCorrect('M');
			qrcodeHandler.setQrcodeEncodeMode('B');
			qrcodeHandler.setQrcodeVersion(7);
			System.out.println(content);
			byte[] contentBytes = content.getBytes("UTF-8");
			BufferedImage bufImg = new BufferedImage(140, 140,
			BufferedImage.TYPE_INT_RGB);
			Graphics2D gs = bufImg.createGraphics();
			gs.setBackground(Color.WHITE);
			gs.clearRect(0, 0, 140, 140);
			gs.setColor(Color.BLACK);
			int pixoff = 2;// 设置偏移量 不设置可能导致解析出错
			// 输出内容> 二维码
			if (contentBytes.length > 0 && contentBytes.length < 120) {
				boolean[][] codeOut = qrcodeHandler.calQrcode(contentBytes);
				for (int i = 0; i < codeOut.length; i++) {
					for (int j = 0; j < codeOut.length; j++) {
						if (codeOut[j][i]) {
							gs.fillRect(j * 3 + pixoff, i * 3 + pixoff, 3, 3);
						}
					}
				}
			} else {
				System.err.println("QRCode content bytes length = "
				+ contentBytes.length + " not in [ 0,120 ]. ");
			}
			gs.dispose();
			bufImg.flush();
			File imgFile = new File(imgPath);
			// 生成二维码QRCode图片
			ImageIO.write(bufImg, "png", imgFile);
			
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
	public static void main(String[] args) {
		
		String imgPath = "D:/QRCode.png";
		String content = "熊佳佳的技术博客  http://xiongjiajia.iteye.com/";
		QRCodeEncoderHandler handler = new QRCodeEncoderHandler();
		handler.encoderQRCode(content, imgPath);
		System.out.println("encoder QRcode success");
	}
}