Java 扫描识别条形码图片

心已赠人 2022-09-11 14:23 290阅读 0赞

## 1.条形码扫描识别的实现方法及步骤 ##

本文以Java代码示例介绍如何来扫描和识别条形码图片。这里使用免费条码工具 [Free Spire.Barcode for Java][]，调用BarcodeScanner类中的scan(java.lang.String fileName, BarCodeType barcodeType)方法扫描识别指定类型条码中包含的数据。在编辑代码前，先参考如下步骤手动将jar包导入Java程序：

![1dc0b897cd34fe2a61bf182efdd9f99c.png][]

![5f8b887a3262e28b1c34f6d77496f520.png][]

![19da40b61e5560992c4d8c05db41c342.png][]

完成导入：

![4561c171cea8519afc2291ddfe8e8c54.png][]

【Java】

![复制代码][48304ba5e6f9fe08f3fa1abda7d326ab.png]

import com.spire.barcode.*;
    
    public class ScanBarcode {
        public static void main(String[] args)throws Exception{
            String[] datas = BarcodeScanner.scan("EAN_13.png", BarCodeType.EAN_13);
            System.out.print(datas[0]);
        }
    }

![复制代码][48304ba5e6f9fe08f3fa1abda7d326ab.png]

执行程序，扫描识别条形码图片，获取条码中包含的数据：

![46667d36439c7a078f5190296e9711e7.png][]

##  ##

## 2.条形码扫描的方法归纳 ##

这里的BarcodeScanner类提供了多个扫描图片的方法，见下表1

**表格1：**

<table> 
 <tbody> 
 <tr> 
 <td> Method Summary </td> 
 <td> &nbsp; </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;"> static&nbsp;java.lang.String[] </td> 
 <td> <a title="scan" rel="nofollow">scan</a>(java.awt.image.BufferedImage&nbsp;bitmap) &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Scan barcode from bitmap. </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;"> Static&nbsp;java.lang.String[] </td> 
 <td> <a title="scan" rel="nofollow">scan</a>(java.awt.image.BufferedImage&nbsp;image,&nbsp;<a title="BarCodeType" rel="nofollow">BarCodeType</a>&nbsp;barcodeType) &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Scan barcode from image. </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;"> Static&nbsp;java.lang.String[] </td> 
 <td> <a title="scan" rel="nofollow">scan</a>(java.awt.image.BufferedImage&nbsp;bitmap, java.awt.Rectangle&nbsp;rect,&nbsp;<a title="BarCodeType" rel="nofollow">BarCodeType</a>&nbsp;barcodeType) &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Scans barcode from bitmap. </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;"> Static&nbsp;java.lang.String[] </td> 
 <td> <a title="scan" rel="nofollow">scan</a>(java.io.InputStream&nbsp;stream) &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Scan barcode from image stream. </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;"> Static&nbsp;java.lang.String[] </td> 
 <td> <a title="scan" rel="nofollow">scan</a>(java.io.InputStream&nbsp;stream, boolean&nbsp;IncludeCheckSum) &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Scan barcode from image stream. </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;"> Static&nbsp;java.lang.String[] </td> 
 <td> <a title="scan" rel="nofollow">scan</a>(java.lang.String&nbsp;fileName) &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Scan barcode from image file. </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;"> Static&nbsp;java.lang.String[] </td> 
 <td> <a title="scan" rel="nofollow">scan</a>(java.lang.String&nbsp;fileName,&nbsp;<a title="BarCodeType" rel="nofollow">BarCodeType</a>&nbsp;barcodeType) &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Scans barcode from image file. </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;"> Static&nbsp;java.lang.String[] </td> 
 <td> <a title="scan" rel="nofollow">scan</a>(java.lang.String&nbsp;fileName, boolean&nbsp;IncludeCheckSum) &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Scan barcode from image file. </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;"> Static&nbsp;java.lang.String </td> 
 <td> <a title="scanOne" rel="nofollow">scanOne</a>(java.awt.image.BufferedImage&nbsp;bitmap) &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Scan barcode from bitmap. </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;"> Static&nbsp;java.lang.String </td> 
 <td> <a title="scanOne" rel="nofollow">scanOne</a>(java.io.InputStream&nbsp;stream) &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Scan barcode from image stream. </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;"> Static&nbsp;java.lang.String </td> 
 <td> <a title="scanOne" rel="nofollow">scanOne</a>(java.io.InputStream&nbsp;stream, boolean&nbsp;IncludeCheckSum) &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Scan barcode from image stream. </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;"> Static&nbsp;java.lang.String </td> 
 <td> <a title="scanOne" rel="nofollow">scanOne</a>(java.lang.String&nbsp;fileName) &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Scan barcode from image file. </td> 
 </tr> 
 <tr> 
 <td style="vertical-align:top;"> Static&nbsp;java.lang.String </td> 
 <td> <a title="scanOne" rel="nofollow">scanOne</a>(java.lang.String&nbsp;fileName, boolean&nbsp;IncludeCheckSum) &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Scan barcode from image file. </td> 
 </tr> 
 </tbody> 
</table>

## 3. 条码生成及扫描类型汇总 ##

因本次使用的是[免费版][Link 1]的Barcode API，对支持生成的条码类型以及扫描的条码类型上有所限制，详细内容见下表2。在使用时，可根据自己的程序要求看条码类型是否支持。

**表格-2**：

<table> 
 <tbody> 
 <tr> 
 <td> 条形码类型 </td> 
 <td> 生成的条形码类型 </td> 
 <td> 扫描条形码类型 </td> 
 </tr> 
 <tr> 
 <td> CODE 25 </td> 
 <td> × </td> 
 <td> × </td> 
 </tr> 
 <tr> 
 <td> CODABAR </td> 
 <td> √ </td> 
 <td> √ </td> 
 </tr> 
 <tr> 
 <td> CODE 11 </td> 
 <td> √ </td> 
 <td> √ </td> 
 </tr> 
 <tr> 
 <td> INTERLEAVED 25 </td> 
 <td> × </td> 
 <td> × </td> 
 </tr> 
 <tr> 
 <td> CODE 39 </td> 
 <td> √ </td> 
 <td> √ </td> 
 </tr> 
 <tr> 
 <td> CODE 39 EXTENDED </td> 
 <td> √ </td> 
 <td> √ </td> 
 </tr> 
 <tr> 
 <td> CODE 93 </td> 
 <td> √ </td> 
 <td> √ </td> 
 </tr> 
 <tr> 
 <td> CODE 93 EXTENDED </td> 
 <td> √ </td> 
 <td> √ </td> 
 </tr> 
 <tr> 
 <td> CODE 128 </td> 
 <td> √ </td> 
 <td> √ </td> 
 </tr> 
 <tr> 
 <td> EAN 8 </td> 
 <td> √ </td> 
 <td> √ </td> 
 </tr> 
 <tr> 
 <td> EAN 13 </td> 
 <td> √ </td> 
 <td> √ </td> 
 </tr> 
 <tr> 
 <td> EAN 128 </td> 
 <td> √ </td> 
 <td> × </td> 
 </tr> 
 <tr> 
 <td> EAN 14 </td> 
 <td> √ </td> 
 <td> √ </td> 
 </tr> 
 <tr> 
 <td> SCC 14 </td> 
 <td> √ </td> 
 <td> √ </td> 
 </tr> 
 <tr> 
 <td> SSCC 18 </td> 
 <td> × </td> 
 <td> × </td> 
 </tr> 
 <tr> 
 <td> ITF 14 </td> 
 <td> × </td> 
 <td> × </td> 
 </tr> 
 <tr> 
 <td> ITF 6 </td> 
 <td> × </td> 
 <td> × </td> 
 </tr> 
 <tr> 
 <td> UPCA </td> 
 <td> × </td> 
 <td> × </td> 
 </tr> 
 <tr> 
 <td> UPCE </td> 
 <td> × </td> 
 <td> × </td> 
 </tr> 
 <tr> 
 <td> POST NET </td> 
 <td> √ </td> 
 <td> × </td> 
 </tr> 
 <tr> 
 <td> SINGAPORE POST 4 STATE </td> 
 <td> × </td> 
 <td> × </td> 
 </tr> 
 <tr> 
 <td> PLANET </td> 
 <td> × </td> 
 <td> × </td> 
 </tr> 
 <tr> 
 <td> MSI </td> 
 <td> × </td> 
 <td> × </td> 
 </tr> 
 <tr> 
 <td> RSS 14 </td> 
 <td> × </td> 
 <td> × </td> 
 </tr> 
 <tr> 
 <td> RSS 14 TRUNCATED </td> 
 <td> × </td> 
 <td> × </td> 
 </tr> 
 <tr> 
 <td> RSS LIMITED </td> 
 <td> × </td> 
 <td> × </td> 
 </tr> 
 <tr> 
 <td> RSS EXPANDED </td> 
 <td> × </td> 
 <td> × </td> 
 </tr> 
 <tr> 
 <td> USPS </td> 
 <td> × </td> 
 <td> × </td> 
 </tr> 
 <tr> 
 <td> SWISS POST PARCEL </td> 
 <td> × </td> 
 <td> × </td> 
 </tr> 
 <tr> 
 <td> PZN </td> 
 <td> × </td> 
 <td> × </td> 
 </tr> 
 <tr> 
 <td> OPC </td> 
 <td> × </td> 
 <td> × </td> 
 </tr> 
 <tr> 
 <td> DEUTSCHE POST IDENTCODE </td> 
 <td> × </td> 
 <td> × </td> 
 </tr> 
 <tr> 
 <td> DEUTSCHE POST LEITCODE </td> 
 <td> × </td> 
 <td> × </td> 
 </tr> 
 <tr> 
 <td> ROYAL MAIL 4 STATE </td> 
 <td> × </td> 
 <td> × </td> 
 </tr> 
 <tr> 
 <td> DATA MATRIX </td> 
 <td> × </td> 
 <td> × </td> 
 </tr> 
 <tr> 
 <td> QR CODE </td> 
 <td> √ </td> 
 <td> × </td> 
 </tr> 
 <tr> 
 <td> PDF 417 </td> 
 <td> × </td> 
 <td> × </td> 
 </tr> 
 <tr> 
 <td> PDF 417 MACRO </td> 
 <td> × </td> 
 <td> × </td> 
 </tr> 
 </tbody> 
</table>

注释： √ 表示[java教程][java]支持，× 表示不支持

**—End—**

[Free Spire.Barcode for Java]: https://www.e-iceblue.cn/Introduce/Free-Spire-Barcode-JAVA.html
[1dc0b897cd34fe2a61bf182efdd9f99c.png]: /images/20220828/ec9183e9a60441a1b240de5b53348348.png
[5f8b887a3262e28b1c34f6d77496f520.png]: /images/20220828/2dd14558ad784d1a9c68c2da76b41157.png
[19da40b61e5560992c4d8c05db41c342.png]: /images/20220828/4152438d79bb47ba9114fc12714d5d73.png
[4561c171cea8519afc2291ddfe8e8c54.png]: /images/20220828/0c403ca3cf8446c9bd980172fa9d454c.png
[48304ba5e6f9fe08f3fa1abda7d326ab.png]: /images/20220828/c2bc5f385a15412faa9bc49ccf6dc663.png
[46667d36439c7a078f5190296e9711e7.png]: /images/20220828/37f998e6ef27432d9a0a2a1888d68175.png
[Link 1]: https://www.e-iceblue.cn/Downloads/Free-Spire-Barcode-JAVA.html
[java]: https://www.xin3721.com/eschool/Javaxin3721/