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二维码条形码类库 感觉很好用
首先下载 gradle
//二维码
'com.google.zxing:core:3.2.0',
'com.google.zxing:javase:3.2.0'
// android-core
//'com.google.zxing:android-core:3.2.0'
ZxingEAN13Handler.java- package com.sniper.survey.util;
-
- import java.awt.image.BufferedImage;
- import java.io.File;
- import java.io.FileOutputStream;
-
- import javax.imageio.ImageIO;
-
- import com.google.zxing.BarcodeFormat;
- import com.google.zxing.BinaryBitmap;
- 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;
-
- public class ZxingEAN13Handler {
- /**
- * 条形码编码
- *
- * @param contents
- * @param width
- * @param height
- * @param imgPath
- */
- public void encode(String contents, int width, int height, String imgPath) {
- int codeWidth = 3 + // start guard
- (7 * 6) + // left bars
- 5 + // middle guard
- (7 * 6) + // right bars
- 3; // end guard
- codeWidth = Math.max(codeWidth, width);
- try {
- BitMatrix bitMatrix = new MultiFormatWriter().encode(contents,
- BarcodeFormat.EAN_13, codeWidth, height, null);
-
- MatrixToImageWriter.writeToStream(bitMatrix, "png",
- new FileOutputStream(imgPath));
-
- } catch (Exception e) {
- e.printStackTrace();
- }
- }
-
- /**
- * 解析条形码
- *
- * @param imgPath
- * @return
- */
- public String decode(String imgPath) {
- BufferedImage image = null;
- Result result = null;
- try {
- image = ImageIO.read(new File(imgPath));
- if (image == null) {
- System.out.println("the decode image may be not exit.");
- }
- LuminanceSource source = new BufferedImageLuminanceSource(image);
- BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
-
- result = new MultiFormatReader().decode(bitmap, null);
- return result.getText();
- } catch (Exception e) {
- e.printStackTrace();
- }
- return null;
- }
-
- public static void main(String[] args) {
- String imgPath = "/home/sniper/桌面/zxing_EAN13.png";
- // 益达无糖口香糖的条形码
- String contents = "6923450657713";
-
- int width = 105, height = 50;
- ZxingEAN13Handler handler = new ZxingEAN13Handler();
- handler.encode(contents, width, height, imgPath);
-
- System.out.println("Michael ,you have finished zxing EAN13 encode.");
- }
- }
复制代码 ZxingHandler.java- package com.sniper.survey.util;
-
- import java.awt.image.BufferedImage;
- import java.io.File;
- import java.io.FileOutputStream;
- import java.util.Hashtable;
- 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.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;
- import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;
-
- /**
- * 二维码生成器
- *
- * @blog http://sjsky.iteye.com
- * @author Michael
- */
- public class ZxingHandler {
-
- /**
- * 生成二维码
- *
- * @param contents
- * @param width
- * @param height
- * @param imgPath
- */
- public void encode(String contents, int width, int height, String imgPath) {
- Map<EncodeHintType, Object> hints = new Hashtable<>();
- // 指定纠错等级
- hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.L);
- // 指定编码格式
- hints.put(EncodeHintType.CHARACTER_SET, "GBK");
- try {
- BitMatrix bitMatrix = new MultiFormatWriter().encode(contents,
- BarcodeFormat.QR_CODE, width, height, hints);
-
- MatrixToImageWriter.writeToStream(bitMatrix, "png",
- new FileOutputStream(imgPath));
-
- } catch (Exception e) {
- e.printStackTrace();
- }
- }
-
- /**
- * 解析二维码
- *
- * @param imgPath
- * @return
- */
- public String decode(String imgPath) {
- BufferedImage image = null;
- Result result = null;
- try {
- image = ImageIO.read(new File(imgPath));
- if (image == null) {
- System.out.println("the decode image may be not exit.");
- }
- LuminanceSource source = new BufferedImageLuminanceSource(image);
- BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
-
- Map<DecodeHintType, Object> hints = new Hashtable<>();
- hints.put(DecodeHintType.CHARACTER_SET, "GBK");
-
- result = new MultiFormatReader().decode(bitmap, hints);
- return result.getText();
- } catch (Exception e) {
- e.printStackTrace();
- }
- return null;
- }
-
- }
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