Java生成二维码实现扫描次数统计并转发到某个地址

package javacommon.qrcode;

import java.awt.Color;
import java.awt.Graphics2D;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;

import javax.imageio.ImageIO;

import org.junit.Test;

import jp.sourceforge.qrcode.QRCodeDecoder;
import jp.sourceforge.qrcode.exception.DecodingFailedException;

import com.swetake.util.Qrcode;
/**
 * 创建二维码工具类,将类改成了静态工具类
 * @author Bill
 * @see 源来自: http://blog.csdn.net/wangpeng047/article/details/7181217
 * @since V1.0 2014/01/07
 */
public class TwoDimensionCode {
	/*private TwoDimensionCode() {
	}*/
	
	/**
	 * 生成二维码(QRCode)图片
	 * @param content 存储内容
	 * @param imgPath 图片路径
	 */
	public static void encoderQRCode(String content, String imgPath) {
		encoderQRCode(content, imgPath, "png", 7);
	}
	
	/**
	 * 生成二维码(QRCode)图片
	 * @param content 存储内容
	 * @param output 输出流
	 */
	public static void encoderQRCode(String content, OutputStream output) {
		encoderQRCode(content, output, "png", 7);
	}
	
	/**
	 * 生成二维码(QRCode)图片
	 * @param content 存储内容
	 * @param imgPath 图片路径
	 * @param imgType 图片类型
	 */
	public static void encoderQRCode(String content, String imgPath, String imgType) {
		encoderQRCode(content, imgPath, imgType, 7);
	}
	
	/**
	 * 生成二维码(QRCode)图片
	 * @param content 存储内容
	 * @param output 输出流
	 * @param imgType 图片类型
	 */
	public static void encoderQRCode(String content, OutputStream output, String imgType) {
		encoderQRCode(content, output, imgType, 7);
	}

	/**
	 * 生成二维码(QRCode)图片
	 * @param content 存储内容
	 * @param imgPath 图片路径
	 * @param imgType 图片类型
	 * @param size 二维码尺寸
	 */
	public static void encoderQRCode(String content, String imgPath, String imgType, int size) {
		try {
			BufferedImage bufImg = qRCodeCommon(content, imgType, size);
			
			File imgFile = new File(imgPath);
			// 生成二维码QRCode图片
			ImageIO.write(bufImg, imgType, imgFile);
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	/**
	 * 生成二维码(QRCode)图片
	 * @param content 存储内容
	 * @param output 输出流
	 * @param imgType 图片类型
	 * @param size 二维码尺寸
	 */
	public static void encoderQRCode(String content, OutputStream output, String imgType, int size) {
		try {
			BufferedImage bufImg = qRCodeCommon(content, imgType, size);
			// 生成二维码QRCode图片
			ImageIO.write(bufImg, imgType, output);
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
	
	/**
	 * 生成二维码(QRCode)图片的公共方法
	 * @param content 存储内容
	 * @param imgType 图片类型
	 * @param size 二维码尺寸  取值范围1-40，值越大尺寸越大，可存储的信息越大
	 * @return
	 */
	private static BufferedImage qRCodeCommon(String content, String imgType, int size) {
		BufferedImage bufImg = null;
		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');
			qrcodeHandler.setQrcodeEncodeMode('B');
			// 设置设置二维码尺寸，取值范围1-40，值越大尺寸越大，可存储的信息越大
			qrcodeHandler.setQrcodeVersion(size);
			// 获得内容的字节数组，设置编码格式
			byte[] contentBytes = content.getBytes("utf-8");
			// 图片尺寸
			int imgSize = 67 + 12 * (size - 1);
			bufImg = new BufferedImage(imgSize, imgSize, BufferedImage.TYPE_INT_RGB);
			Graphics2D gs = bufImg.createGraphics();
			// 设置背景颜色
			gs.setBackground(Color.WHITE);
			gs.clearRect(0, 0, imgSize, imgSize);

			// 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 {
				throw new Exception("QRCode content bytes length = " + contentBytes.length + " not in [0, 800].");
			}
			gs.dispose();
			bufImg.flush();
		} catch (Exception e) {
			e.printStackTrace();
		}
		return bufImg;
	}
	
	/**
	 * 解析二维码（QRCode）
	 * @param imgPath 图片路径
	 * @return
	 */
	public static String decoderQRCode(String imgPath) {
		// QRCode 二维码图片的文件
		File imageFile = new File(imgPath);
		BufferedImage bufImg = null;
		String content = null;
		try {
			bufImg = ImageIO.read(imageFile);
			QRCodeDecoder decoder = new QRCodeDecoder();
			content = new String(decoder.decode(new TwoDimensionCodeImage(bufImg)), "utf-8"); 
		} catch (IOException e) {
			System.out.println("Error: " + e.getMessage());
			e.printStackTrace();
		} catch (DecodingFailedException dfe) {
			System.out.println("Error: " + dfe.getMessage());
			dfe.printStackTrace();
		}
		return content;
	}
	
	/**
	 * 解析二维码（QRCode）
	 * @param input 输入流
	 * @return
	 */
	public static String decoderQRCode(InputStream input) {
		BufferedImage bufImg = null;
		String content = null;
		try {
			bufImg = ImageIO.read(input);
			QRCodeDecoder decoder = new QRCodeDecoder();
			content = new String(decoder.decode(new TwoDimensionCodeImage(bufImg)), "utf-8"); 
		} catch (IOException e) {
			System.out.println("Error: " + e.getMessage());
			e.printStackTrace();
		} catch (DecodingFailedException dfe) {
			System.out.println("Error: " + dfe.getMessage());
			dfe.printStackTrace();
		}
		return content;
	}

	public static void main(String[] args) {
		String imgPath = "E:/01.png";
		//String encoderContent = "Hello 大大、小小,welcome to QRCode!" + "\nMyblog [ http://sjsky.iteye.com ]" + "\nEMail [ sjsky007@gmail.com ]";
		TwoDimensionCode handler = new TwoDimensionCode();
		//handler.encoderQRCode(encoderContent, imgPath, "png");
//		try {
//			OutputStream output = new FileOutputStream(imgPath);
//			handler.encoderQRCode(content, output);
//		} catch (Exception e) {
//			e.printStackTrace();
//		}
		// System.out.println("========encoder success");
		
		
		String decoderContent = handler.decoderQRCode(imgPath);
		System.out.println("解析结果如下：");
		System.out.println(decoderContent);
		System.out.println("========decoder success!!!");
	}
	
	@Test
	public void test01() throws UnsupportedEncodingException{
		String msg = "http://baike.baidu.com/link?YVWkHK4xQVWK444yX444yXZxQMYVWkHK4n4aZGWU6z5sMY35SyXZxQMYVWkHK4n4aZGWU6z5ZxQMYVWkHK4n4aZGWU6z5sMY35SyXZxQMYVWkHK4n4aZGWU6z5ZxQMYVWkHK4n4aZGWU6z5sMY35SyXZxQMYVWkHK4n4aZGWU6z5ZxQMYVWkHK4n4aZGWU6z5sMY35SyXZxQMYVWkHK4n4aZGWU6z5ZxQMYVWkHK4n4aZGWU6z5sMY35SyXZxQMYVWkHK4n4aZGWU6z5ZxQMYVWkHK4n4aZGWU6z5sMY35SyXZxQMYVWkHK4n4aZGWU6z5ZxQMYVWkHK4n4aZGWU6z5sMY35SyXZxQMYVWkHK4n4aZGWU6z5ZxQMYVWkHK4n4aZGWU6z5sMY35SyXZxQMYVWkHK4n4aZGWU6z5ZxQMYVWkHK4n4aZGWU6z5sMY35SyXZxQMYVWkHK4n4aZGWU6z5ZxQMYVWkHK4n4aZGWU6z5sMY35SyXZxQMYVWkHK4n4aZGWU6z5ZxQMYVWkHK4n4aZGWU6z5sMY35SyXZxQMYVWkHK4n4aZGWU6z5ZxQMYVWkHK4n4aZGWU6z5sMY35SyXZxQMYVWkHK4n4aZGWU6z5ZxQMYVWkHK4n4aZGWU6z5sMY35SyXZxQMYVWkHK4n4aZGWU6z5ZxQMYVWkHK4n4aZGWU6z5sMY35SyXZxQMYVWkHK4n4aZGWU6z5ZxQMYVWkHK4n4aZGWU6z5sMY35SyXZxQMYVWkHK4n4aZGWU6z5ZxQMYVWkHK4n4aZGWU6z5sMY35SyXZxQMYVWkHK4n4aZGWU6z5ZxQMYVWkHK4n4aZGWU6z5sMY35SyXZxQMYVWkHK4n4aZGWU6z5ZxQMYVWkHK4n4aZGWU6z5sMY35SyXZxQMYVWkHK4n4aZGWU6z5sMY35SyXZxQMYVWkHK4n4aZGWU6z5sMY35SyXZxQMYVWkHK4n4aZGWU6z5sMY35SyXZxQMYVWkHK4n4aZGWU6z5sMY35SyXZxQMYVWkHK4n4aZGWU6z5sMY35SyXZxQMYVWkHK4n4aZGWU6z5sMY35SyXZxQMYVWkHK4n4aZGWU6z5sMY35SyXZxQMYVWkHK4n4aZGWU6z5sMY35SyXZxQMYVWkHK4n4aZGWU6z5sMY35SyXZxQMYVWkHK4n4aZGWU6z5sMY35SyXZxQMYVWkHKIkmbrHT9-s2WBaEbS哈哈哪里拉萨的";
		System.out.println("normal:"+msg.length());
		System.out.println("bytes:"+msg.getBytes("UTF-8").length);
		encoderQRCode(msg.toString(),"E:/2/t7.png", "png", 40);
		System.out.println("ok");
	}
}

package javacommon.qrcode;

import java.awt.image.BufferedImage;

import jp.sourceforge.qrcode.data.QRCodeImage;

public class TwoDimensionCodeImage implements QRCodeImage {

	BufferedImage bufImg;
	
	public TwoDimensionCodeImage(BufferedImage bufImg) {
		this.bufImg = bufImg;
	}
	
	@Override
	public int getHeight() {
		return bufImg.getHeight();
	}

	@Override
	public int getPixel(int x, int y) {
		return bufImg.getRGB(x, y);
	}

	@Override
	public int getWidth() {
		return bufImg.getWidth();
	}

}