java Qrcode方式生成二维码

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 PubTool {
	/**
	 * add  by  xbx 生成二维码
	 * @param content
	 * @param imgPath
	 */
	public void encoderQRCode(String content, String imgPath) {
		try {
		Qrcode qrcodeHandler = new Qrcode();
		// 设置二维码排错率,可选L(7%)、M(15%)、Q(25%)、H(30%),排错率越高可存储的信息越少,但对二维码清晰度的要求越小
		qrcodeHandler.setQrcodeErrorCorrect('M');
		//编码模式:数字:Numeric   英文字母:Alphanumeric  二进制:Binary  汉字:Kanji
		qrcodeHandler.setQrcodeEncodeMode('B');
		//版本: 1-40 共40个版本:  (1:21x21模块;  2:177x177模块)
		qrcodeHandler.setQrcodeVersion(5);
		System.out.println(content);
//		int imgSize = 67 + 12 * (size - 1);
		byte[] contentBytes = content.getBytes("GBK");
		BufferedImage bufImg = new BufferedImage(115, 115,
		BufferedImage.TYPE_INT_RGB);
		Graphics2D gs = bufImg.createGraphics();
		gs.setBackground(Color.WHITE);
		gs.clearRect(0, 0, 115, 115);
		// 设定图像颜色> BLACK
		gs.setColor(Color.BLACK);
		// 设置偏移量 不设置可能导致解析出错
		int pixoff = 2;
		// 输出内容> 二维码
		if (contentBytes.length > 0 && contentBytes.length < 800) {
		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) {
		//取当前时间为图片名称 带毫秒的
		SimpleDateFormat sdf =  new SimpleDateFormat("yyyyMMddHHmmssSSS" );
		Date d=new Date();
		String str=sdf.format(d);
		String imgPath = "C:\\erweima\\"+str+".png";
		String content= "http://blog.csdn.net/xubenxismile/article/details/53290662";
		PubTool handler = new PubTool();
		handler.encoderQRCode(content, imgPath);
		System.out.println("imgPath:"+imgPath);
		System.out.println("encoder QRcode success");
	}
}

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转载自blog.csdn.net/xubenxismile/article/details/53291250