package cn.qrcode;

import java.awt.image.BufferedImage;
import java.io.File;
import java.util.HashMap;
import java.util.Map;

import javax.imageio.ImageIO;

import com.google.zxing.BarcodeFormat;
import com.google.zxing.Binarizer;
import com.google.zxing.BinaryBitmap;
import com.google.zxing.EncodeHintType;
import com.google.zxing.LuminanceSource;
import com.google.zxing.MultiFormatReader;
import com.google.zxing.MultiFormatWriter;
import com.google.zxing.Result;
import com.google.zxing.client.j2se.BufferedImageLuminanceSource;
import com.google.zxing.client.j2se.MatrixToImageWriter;
import com.google.zxing.common.BitMatrix;
import com.google.zxing.common.HybridBinarizer;

/**
 * 二维码生成和解析
 */
public class QRTest {
	
	public static void main(String[] args) {
		//create();
		parse();
	}
	
	private static void create() {
		try {
			String content = "120605181003;http://www.cnblogs.com/jtmjx";
			String path = "src";

			MultiFormatWriter multiFormatWriter = new MultiFormatWriter();
			// 用于设置QR二维码参数  
			Map hints = new HashMap();
			hints.put(EncodeHintType.CHARACTER_SET, "UTF-8");
			// QR_CODE: //这里是二维码
			// CODE_128: //这个可以生成
			// PDF_417: //这个可以生成
			// 参数顺序分别为：编码内容，编码类型，生成图片宽度，生成图片高度，设置参数  
			BitMatrix bitMatrix = multiFormatWriter.encode(content, BarcodeFormat.QR_CODE, 400, 400, hints);
			File file1 = new File(path, "dd.jpg");
			MatrixToImageWriter.writeToFile(bitMatrix, "jpg", file1);
			System.out.println("图片完成！");
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
	/**
	 * 
	 */
	public static void parse() {
		try {
			MultiFormatReader formatReader = new MultiFormatReader();
			String filePath = "src/a.jpg";
			File file = new File(filePath);
			BufferedImage image = ImageIO.read(file);
			LuminanceSource source = new BufferedImageLuminanceSource(image);
			Binarizer binarizer = new HybridBinarizer(source);
			BinaryBitmap binaryBitmap = new BinaryBitmap(binarizer);
			Map hints = new HashMap();
			hints.put(EncodeHintType.CHARACTER_SET, "UTF-8");
			Result result = formatReader.decode(binaryBitmap, hints);

			System.out.println("result = " + result.toString());
			System.out.println("resultFormat = " + result.getBarcodeFormat());
			System.out.println("resultText = " + result.getText());

		} catch (Exception e) {
			e.printStackTrace();
		}
	}
}