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聽

package com.openjweb.erp.barcode;

import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.util.Hashtable;

import javax.imageio.ImageIO;

import com.google.zxing.BarcodeFormat;
import com.google.zxing.BinaryBitmap;
import com.google.zxing.DecodeHintType;
import com.google.zxing.LuminanceSource;
import com.google.zxing.MultiFormatReader;
import com.google.zxing.MultiFormatWriter;
import com.google.zxing.Reader;
import com.google.zxing.ReaderException;
import com.google.zxing.Result;
import com.google.zxing.WriterException;
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;
import com.google.zxing.qrcode.encoder.ByteMatrix;

//http://hi.baidu.com/baid/blog/item/fd446e06d199a77702088102.html
//http://www.4ucode.com/Study/Topic/1162485
//http://www.baishaode.com/blog/?p=436
public class QRCodeGen
{
聽/**
聽 * 鐢熸垚浜岀淮鐮佸浘鐗?br>聽 * @param code 寰呯敓鎴愬浘鐗囩殑浜岀淮鐮?br>聽 * @param destFile 鐢熸垚浜岀淮鐮佸浘鐗囧瓨鍌ㄧ殑鏂囦欢
聽 */
聽public static void createQRCodePic(String code,String destFile)
聽{
聽聽BitMatrix byteMatrix;
聽聽try
聽聽{
聽聽聽byteMatrix = new MultiFormatWriter()
聽聽聽.encode(code,BarcodeFormat.QR_CODE, 200, 200);
聽聽聽 聽聽File file = new File(destFile);
聽聽聽聽 聽MatrixToImageWriter.writeToFile(byteMatrix, destFile.substring(destFile.lastIndexOf(".")+1), file);
聽聽}
聽聽catch (IOException e)
聽聽{
聽聽聽e.printStackTrace();
聽聽}
聽聽catch (WriterException e1)
聽聽{
聽聽聽e1.printStackTrace();
聽聽}
聽}
聽
聽/**
聽 * 鍙嶅悜瑙ｆ瀽浜岀淮鐮?br>聽 * @param picFile
聽 * @return
聽 */
聽public static String decodeQRCode(String imgPath,String charset)
聽{
聽聽String code = "";
聽聽try
聽聽{
聽聽聽Reader reader = new MultiFormatReader();
聽聽聽File file = new File(imgPath);
聽聽聽BufferedImage image;
聽聽聽try
聽聽聽{
聽聽聽聽image = ImageIO.read(file);
聽聽聽聽聽聽 if (image == null)
聽聽聽聽聽聽 {
聽聽聽聽聽聽 聽System.out.println("Could not decode image");
聽聽聽聽聽聽 }
聽聽聽聽聽聽 LuminanceSource source = new BufferedImageLuminanceSource(image);
聽聽聽聽聽聽 BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
聽聽聽聽聽聽 Result result;
聽聽聽聽聽聽 Hashtable hints= new Hashtable();
聽聽聽聽聽聽 hints.put(DecodeHintType.CHARACTER_SET, charset); //utf-8
聽聽聽聽聽聽 //瑙ｇ爜璁剧疆缂栫爜鏂瑰紡涓猴細utf-8锛?br>聽聽聽聽聽聽 result = new MultiFormatReader().decode(bitmap,hints);
聽聽聽聽聽聽 String resultStr = result.getText();
聽聽聽聽聽聽 code = resultStr;
聽聽聽聽聽聽 System.out.println("瑙ｆ瀽鍚庡唴瀹癸細"+resultStr);
聽聽聽}
聽聽聽catch (IOException ioe)
聽聽聽{
聽聽聽聽System.out.println(ioe.toString());
聽聽聽}
聽聽聽catch (ReaderException re)
聽聽聽{
聽聽聽聽System.out.println(re.toString());
聽聽聽}
聽聽聽}
聽聽catch(Exception ex)
聽聽{
聽聽聽System.out.println(ex.toString());
聽聽}
聽聽return code;
聽}
聽
聽public static void main(String[] args) {

聽聽String str = "test";//浜岀淮鐮佸唴瀹?br>聽聽String path = "d:/test";

聽聽BitMatrix byteMatrix;
聽聽try
聽聽{
聽聽聽byteMatrix = new MultiFormatWriter().encode(str,BarcodeFormat.QR_CODE, 200, 200);

聽聽File file = new File(path + ".png");
聽聽MatrixToImageWriter.writeToFile(byteMatrix, "png", file);
聽聽} catch (IOException e) {
聽聽e.printStackTrace();
聽聽} catch (WriterException e1) {
聽聽e1.printStackTrace();
聽聽}
聽聽}
}

聽

聽

jsp璋冪敤绀轰緥锛?/p>

聽

<%@ page contentType="text/html;charset=UTF-8"%>
<%@ page import="java.util.*"%>
<%@ page import="com.openjweb.erp.barcode.*"%>
聽
<%
try
{
聽//娴嬭瘯閫氳繃绋嬪簭鐢熸垚浜岀淮鐮佸浘褰?br>聽//String encodeStr = "涓崕浜烘皯鍏卞拰鍥?;

聽//String encodeStr = "http://www.openjweb.com";

聽String encodeStr = "鑰佸﹩鎴戠埍浣?";
聽
聽out.println("QRCode浜岀淮鐮佹祴璇?"+encodeStr+"<br>");
聽encodeStr = new String(encodeStr.getBytes("utf-8"), "ISO-8859-1");//杞崲鎴怚SO-8859-1

聽String imgPath = "d:/barcode.png";
聽聽聽 QRCodeGen.createQRCodePic(encodeStr,imgPath);
聽
聽out.println("瀵圭敓鎴愮殑鏂囦欢杩涜瑙ｇ爜,璇诲彇鐢熸垚鐨勫浘鐗?");
聽聽聽 String decode = QRCodeGen.decodeQRCode(imgPath,"utf-8");聽 //杩樺師鎴恥tf-8缂栫爜
聽out.println(decode);
聽
}
catch(Exception ex)
{

ex.printStackTrace();

}
%>