| 提交 | 用户 | age | ||
| c0a0c6 | 1 | package com.hx.util; |
| C | 2 | |
| 3 | import com.google.zxing.BarcodeFormat; | |
| 4 | import com.google.zxing.MultiFormatWriter; | |
| 5 | import com.google.zxing.client.j2se.MatrixToImageWriter; | |
| 6 | import com.google.zxing.common.BitMatrix; | |
| 7 | import sun.misc.BASE64Encoder; | |
| 8 | ||
| 9 | import javax.imageio.ImageIO; | |
| 10 | import java.awt.image.BufferedImage; | |
| 11 | import java.io.ByteArrayOutputStream; | |
| 12 | ||
| 13 | public class BarCodeUtil { | |
| 14 | ||
| 15 | /** | |
| 16 | * 给前端产生一个条形码 | |
| 17 | * | |
| 18 | * @param number 编码 | |
| 19 | * @param width 宽度 | |
| 20 | * @param height 高度 | |
| 21 | */ | |
| 22 | public static String getCode(String number, Integer width, Integer height) { | |
| 23 | // 生成条形码 | |
| 24 | BufferedImage image = getBarCode(number, width, height); | |
| 25 | // 使用流的方式 | |
| 26 | ByteArrayOutputStream out = new ByteArrayOutputStream(); | |
| 27 | try { | |
| 28 | ImageIO.write(image, "png", out); | |
| 29 | } catch (Exception e) { | |
| 30 | // log.error("generate code error! error message:{}", "出现问题！"); | |
| 31 | e.printStackTrace(); | |
| 32 | } | |
| 33 | // 将流转成数组 | |
| 34 | byte[] bytes = out.toByteArray(); | |
| 35 | BASE64Encoder encoder = new BASE64Encoder(); | |
| 36 | // 把生成的编码返回去 | |
| 37 | return "data:image/png;base64," + encoder.encodeBuffer(bytes).trim(); | |
| 38 | } | |
| 39 | ||
| 40 | /** | |
| 41 | * 产生条形码的方法 | |
| 42 | * | |
| 43 | * @param number 编码 | |
| 44 | * @param width 宽度 | |
| 45 | * @param height 高度 | |
| 46 | */ | |
| 47 | public static BufferedImage getBarCode(String number, Integer width, Integer height) { | |
| 48 | try { | |
| 49 | BitMatrix bitMatrix = new MultiFormatWriter().encode(number, BarcodeFormat.CODE_128, width, height); | |
| 50 | return MatrixToImageWriter.toBufferedImage(bitMatrix); | |
| 51 | } catch (Exception e) { | |
| 52 | e.printStackTrace(); | |
| 53 | } | |
| 54 | return null; | |
| 55 | } | |
| 56 | ||
| 57 | } | |
