java生成解析二维码功能

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package com.herman.test;



import java.io.File;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.IOException;

import java.util.HashMap;

import java.util.Map;



import javax.imageio.ImageIO;



import com.google.zxing.BarcodeFormat;

import com.google.zxing.BinaryBitmap;

import com.google.zxing.DecodeHintType;

import com.google.zxing.EncodeHintType;

import com.google.zxing.MultiFormatReader;

import com.google.zxing.MultiFormatWriter;

import com.google.zxing.NotFoundException;

import com.google.zxing.WriterException;

import com.google.zxing.client.j2se.BufferedImageLuminanceSource;

import com.google.zxing.client.j2se.MatrixToImageWriter;

import com.google.zxing.common.HybridBinarizer;

import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;



/**

* 二维码工具类

* @author Herman.Xiong

* @date 2015-7-10 上午10:52:15

* @version V3.0

* @since jdk 1.6,tomcat 6.0

*/

public class ZxingUtil {

private static final Map<EncodeHintType, ErrorCorrectionLevel> encodeMap = new HashMap<EncodeHintType, ErrorCorrectionLevel>();

private static final Map<DecodeHintType, ErrorCorrectionLevel> decodeMap=new HashMap<DecodeHintType, ErrorCorrectionLevel>();

private static final String charset="UTF-8",format="png";

private static final int size=150;

private ZxingUtil() {}



/**

* 生成二维码图片

* @author Herman.Xiong

* @date 2015-7-10 上午10:26:33

* @param file

* @throws WriterException

* @throws IOException

*/

public static void createQRCode(String data, File file)

throws WriterException, IOException {

MatrixToImageWriter.writeToFile(new MultiFormatWriter().encode(

new String(data.getBytes(charset), charset),

BarcodeFormat.QR_CODE, size, size, encodeMap), format, file);

}



/**

* 读取二维码信息

* @author Herman.Xiong

* @date 2015-7-10 上午10:25:58

* @param filePath 二维码图片路径

* @return

* @throws FileNotFoundException

* @throws IOException

* @throws NotFoundException

*/

public static String readQRCode(String filePath)

throws FileNotFoundException, IOException, NotFoundException {

return new MultiFormatReader().decode(new BinaryBitmap(new HybridBinarizer(new BufferedImageLuminanceSource(ImageIO.read(new FileInputStream(filePath))))),decodeMap).getText();

}



public static void main(String [] arg){

try{

createQRCode("http://blog.csdn.net/xmtblog", new File("D:\\111.png"));

System.out.println(readQRCode("D:\\111.png"));

//源码下载地址：http://download.csdn.net/detail/xmt1139057136/8886473

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}catch(Exception e){

e.printStackTrace();

}

}

}

运行效果如下：


源码下载地址：http://download.csdn.net/detail/xmt1139057136/8886473