zxing realization of two-dimensional code generation and parsing

zxing realization of two-dimensional code generation and parsing Blog Category:

• Two-dimensional code zxing

Generation and analysis of two-dimensional code. There are many ways. I choose to use the big brand, Google boss Zxing.

The GitHub link is (I'm using 3.0.0, it's NiO already)

https://github.com/zxing/zxing/tree/zxing-3.0.0

Java code

1. The class in which the output image and the read image are in the core package
3. Multiformatreader
5. Multiformatwriter
7. The class that generated the matrix is in Javase's bag.
9. Matrixtoimagewriter

The configuration in Pom.xml is

XML code

2. <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi= "http://www.w3.org/2001/ Xmlschema-instance "
4. xsi:schemalocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" >
6. <modelversion>4.0.0</modelversion>
10. <groupId>com.shihy</groupId>
12. <artifactid>qrcode</artifactid>
14. <version>0.0.1-snapshot</version>
16. <packaging>jar</packaging>
20. <name>qrcode</name>
22. <URL>http://maven.apache.org</url>
26. <properties>
28. <project.build.sourceEncoding>utf-8</project.build.sourceEncoding>
30. </Properties>
34. <dependencies>
36. <dependency>
38. <groupId>com.google.zxing</groupId>
40. <artifactid>core</artifactid>
42. <version>3.0.0</version>
44. </Dependency>
46. <dependency>
48. <groupId>com.google.zxing</groupId>
50. <artifactid>javase</artifactid>
52. <version>3.0.0</version>
54. </Dependency>
56. <dependency>
58. <groupId>junit</groupId>
60. <artifactid>junit</artifactid>
62. <version>4.10</version>
64. </Dependency>
66. <dependency>
68. <groupId>com.alibaba</groupId>
70. <artifactid>fastjson</artifactid>
72. <version>1.1.29</version>
74. </Dependency>
76. </Dependencies>
78. </Project>

Test tool classes for generating images and parsing images:

Java code

2. Package Com.polysaas.edu.qrcode;
6. Import Java.awt.image.BufferedImage;
8. Import Java.io.File;
10. Import java.io.IOException;
12. Import Java.nio.file.FileSystems;
14. Import Java.nio.file.Path;
16. Import Java.util.HashMap;
18. Import Java.util.Map;
22. Import Javax.imageio.ImageIO;
26. Import Org.junit.Test;
30. Import Com.alibaba.fastjson.JSONObject;
32. Import Com.google.zxing.BarcodeFormat;
34. Import Com.google.zxing.Binarizer;
36. Import Com.google.zxing.BinaryBitmap;
38. Import Com.google.zxing.DecodeHintType;
40. Import Com.google.zxing.EncodeHintType;
42. Import Com.google.zxing.LuminanceSource;
44. Import Com.google.zxing.MultiFormatReader;
46. Import Com.google.zxing.MultiFormatWriter;
48. Import com.google.zxing.NotFoundException;
50. Import Com.google.zxing.Result;
52. Import com.google.zxing.WriterException;
54. Import Com.google.zxing.client.j2se.BufferedImageLuminanceSource;
56. Import Com.google.zxing.client.j2se.MatrixToImageWriter;
58. Import Com.google.zxing.common.BitMatrix;
60. Import Com.google.zxing.common.HybridBinarizer;
64. Public class Qrcodetest {
68. /** 
70. * Generate images
72. *
74. * @throws writerexception
76. * @throws IOException
78. */
80. @Test
82. public void Testencode () throws Writerexception, IOException {
84. String FilePath = "d://";
86. String fileName = "Zxing.png";
88. Jsonobject JSON = new Jsonobject ();
90. Json.put (
92. "Zxing",
94. "https://github.com/zxing/zxing/tree/zxing-3.0.0/javase/src/main/java/com/google/zxing");
96. Json.put ("Author", "Shihy");
98. String content = json.tojsonstring (); //Content
100. int width = 200; //Image width
102. int height = 200; //Image height
104. String format = "png"; Image Type
106. Map<encodehinttype, object> hints = new Hashmap<encodehinttype, object> ();
108. Hints.put (Encodehinttype.character_set, "UTF-8");
110. Bitmatrix Bitmatrix = new Multiformatwriter (). Encode (content,
112. Barcodeformat.qr_code, width, height, hints); //Generate matrix
114. Path PATH = Filesystems.getdefault (). GetPath (FilePath, fileName);
116. Matrixtoimagewriter.writetopath (bitmatrix, format, path); //Output image
118. System.out.println ("output succeeded.");
120. }
124. /** 
126. * Parse Image
128. */
130. @Test
132. public void Testdecode () {
134. String FilePath = "D://zxing.png";
136. BufferedImage image;
138. try {
140. Image = Imageio.read (new File (FilePath));
142. Luminancesource Source = new Bufferedimageluminancesource (image);
144. Binarizer Binarizer = new Hybridbinarizer (source);
146. Binarybitmap Binarybitmap = new Binarybitmap (Binarizer);
148. Map<decodehinttype, object> hints = new Hashmap<decodehinttype, object> ();
150. Hints.put (Decodehinttype.character_set, "UTF-8");
152. Result result = new Multiformatreader (). Decode (Binarybitmap, hints); Decoding an image
154. Jsonobject content = Jsonobject.parseobject (Result.gettext ());
156. System.out.println ("content in the Picture:");
158. System.out.println ("Author:" + content.getstring ("author"));
160. System.out.println ("zxing:" + content.getstring ("zxing"));
162. SYSTEM.OUT.PRINTLN ("format in Picture:");
164. System.out.println ("encode:" + result.getbarcodeformat ());
166. } catch (IOException e) {
168. E.printstacktrace ();
170. } catch (Notfoundexception e) {
172. E.printstacktrace ();
174. }
176. }
178. }

The test generates the image as:

zxing realization of two-dimensional code generation and parsing