二維碼zxing請求jsp頁面

由於某些原因需要做一堆二維碼

需求:

1. 需求生成帶鏈接的url
2. 每個鏈接具有相同的請求頭和唯一的特徵值
3. 批量寫入本地

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實現

import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.nio.file.FileSystems;
import java.nio.file.Path;
import java.sql.Timestamp;
import java.util.HashMap;
import java.util.Map;
import java.util.UUID;

import javax.imageio.ImageIO;

import org.junit.Test;

import com.google.zxing.BarcodeFormat;
import com.google.zxing.Binarizer;
import com.google.zxing.BinaryBitmap;
import com.google.zxing.DecodeHintType;
import com.google.zxing.EncodeHintType;
import com.google.zxing.LuminanceSource;
import com.google.zxing.MultiFormatReader;
import com.google.zxing.MultiFormatWriter;
import com.google.zxing.NotFoundException;
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;

public class QRDomain {

    @Test
    public void create() throws WriterException, IOException{
        /**
         * 定義基本參數
         */
        String imagePath = "d://qrs//";
        String imageName = null;
        int width = 100;
        int height = 100;
        String format = "jpg";
        String contents = "http://localhost:8080/WebQR/CommonServlet?method=query&code=";
//      System.out.println(content);
        /**
         * 位圖矩陣
         */
        for(int i = 100 ; i < 150 ; i++){
            String str = "1A"+getTime()+getUid();
            System.out.println("str : " + str +" : " + str.length());
            imageName = ""+i+".jpg";
            Map<EncodeHintType , Object> hints = new HashMap<EncodeHintType , Object>();
            BitMatrix bitMatrix = new MultiFormatWriter().encode(contents+str, BarcodeFormat.QR_CODE, width, height ,hints);
            Path path = FileSystems.getDefault().getPath(imagePath, imageName);
            MatrixToImageWriter.writeToPath(bitMatrix, format, path);
        }
        System.out.println("over");
    }

    @Test
    public void decode(){
//      System.out.println(getUid());
        String file = "D://qrs//46.jpg";
        BufferedImage image;  
        try {  
            image = ImageIO.read(new File(file));  
            LuminanceSource source = new BufferedImageLuminanceSource(image);  
            Binarizer binarizer = new HybridBinarizer(source);  
            BinaryBitmap binaryBitmap = new BinaryBitmap(binarizer);  
            Map<DecodeHintType, Object> hints = new HashMap<DecodeHintType, Object>();  
            hints.put(DecodeHintType.CHARACTER_SET, "UTF-8");  
            Result result = new MultiFormatReader().decode(binaryBitmap, hints);// 對圖像進行解碼  
            System.out.println("encode： " + result.getBarcodeFormat());  
            System.out.println(new Timestamp(result.getTimestamp()) );
            System.out.println(result.getText());
            System.out.println(result.toString());
        } catch (IOException e) {  
            e.printStackTrace();  
        } catch (NotFoundException e) {  
            e.printStackTrace();  
        }  
    }

    private String getTime(){
        String str = "170220";
        return str;
    }

    private String getUid(){
        String id = UUID.randomUUID().toString();
        id = id.replaceAll("-", "");
        return id.substring(0, 8);
    }
}

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測試 和 解析

測試成功

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項目依賴

需要zxing-core和zxing-javase點擊我下載