<dependency>
<groupId>com.google.zxing</groupId>
<artifactId>core</artifactId>
<version>3.3.0</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.google.zxing/javase -->
<dependency>
<groupId>com.google.zxing</groupId>
<artifactId>javase</artifactId>
<version>3.3.0</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.alibaba/fastjson -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.33</version>
</dependency>
<!-- https://mvnrepository.com/artifact/commons-io/commons-io -->
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>2.5</version>
</dependency>
1 import java.awt.image.BufferedImage;
2 import java.io.ByteArrayOutputStream;
3 import java.io.File;
4 import java.io.FileOutputStream;
5 import java.io.IOException;
6 import java.nio.file.FileSystems;
7 import java.nio.file.Path;
8 import java.util.HashMap;
9 import java.util.Map;
10 import java.util.Random;
11 import java.util.UUID;
12
13 import javax.imageio.ImageIO;
14
15 import org.apache.commons.io.IOUtils;
16 import org.w3c.dom.UserDataHandler;
17
18 import com.alibaba.fastjson.JSONObject;
19
20 import com.google.zxing.BarcodeFormat;
21 import com.google.zxing.EncodeHintType;
22 import com.google.zxing.MultiFormatWriter;
23 import com.google.zxing.WriterException;
24 import com.google.zxing.client.j2se.MatrixToImageWriter;
25 import com.google.zxing.common.BitMatrix;
26
27 public class Hseid {
28
29
30
31 public void testEncode() throws WriterException, IOException, InterruptedException {
32 String filePath = "D://";
33 String fileName =UUID.randomUUID()+".png";
34 // JSONObject json = new JSONObject();
35 // json.put("zxing", "https://github.com/zxing/zxing/tree/zxing-3.0.0/javase/src/main/java/com/google/zxing");
36 // json.put("author", "shihy");
37 // String content = json.toJSONString();// 内容
38 String content = "www.youku.com";
39 int width = 200; // 图像宽度
40 int height = 200; // 图像高度
41 String format = "png";// 图像类型
42 Map<EncodeHintType, Object> hints = new HashMap<EncodeHintType, Object>();
43 hints.put(EncodeHintType.CHARACTER_SET, "UTF-8");
44
45
46 BitMatrix bitMatrix = new MultiFormatWriter().encode(content, BarcodeFormat.QR_CODE, width, height, hints);// 生成矩阵
47
48 // ByteArrayOutputStream out = new ByteArrayOutputStream();
49
50 //轉換到字節數組方式一
51 // BufferedImage bufferedImage = MatrixToImageWriter.toBufferedImage(bitMatrix);
52 //boolean flag = ImageIO.write(bufferedImage, "gif", out);
53 //byte[] b = out.toByteArray();
54
55 //轉換到字節數組方式二
56 // MatrixToImageWriter.writeToStream(bitMatrix, format, out);
57 // byte[] byteArray = out.toByteArray();
58
59
60 //字節數組轉換到文件
61 // FileOutputStream fileOutputStream = new FileOutputStream("D://11111.png");
62 // IOUtils.write(byteArray,fileOutputStream );
63
64 //方案二先上傳再刪除
65 String usrHome = System.getProperty("user.home");
66 System.out.println(usrHome);
67 Path path = FileSystems.getDefault().getPath(usrHome, fileName);
68 MatrixToImageWriter.writeToPath(bitMatrix, format, path);// 输出图像
69 //...這裡完成上傳
70 Thread.sleep(10000);
71
72
73
74 File file = path.toFile();
75 if(file.exists()&&file.isFile()) {
76
77 //再刪除
78 file.delete();
79 }
80
81
82 System.out.println("输出成功.");
83 }
84
85
86 public static void main(String[] args) throws WriterException, IOException, InterruptedException {
87 new Hseid().testEncode();
88 }
89
90 }
