01.public static void main(String[] args) {
02. Charset charset = Charset.forName("ISO-8859-1");
03. CharsetEncoder encoder = charset.newEncoder();
04. byte[] b = null;
05. try {
06.
07. ByteBuffer bbuf = encoder.encode(CharBuffer.wrap("hello world"));
08. b = bbuf.array();
09. } catch (CharacterCodingException e) {
10. System.out.println(e.getMessage());
11. }
12.
13. String data;
14. try {
15. data = new String(b, "ISO-8859-1");
16. } catch (UnsupportedEncodingException e) {
17. System.out.println(e.getMessage());
18. }
19.
20.
21. BitMatrix matrix = null;
22. int h = 100;
23. int w = 100;
24. com.google.zxing.Writer writer = new QRCodeWriter();
25. try {
26. matrix = writer.encode(data,
27. com.google.zxing.BarcodeFormat.QR_CODE, w, h);
28. } catch (com.google.zxing.WriterException e) {
29. System.out.println(e.getMessage());
30. }
31.
32. String filePath = "C:\\temp\\qr_png.png";
33. File file = new File(filePath);
34. try {
35. MatrixToImageWriter.writeToFile(matrix, "PNG", file);
36. System.out.println("printing to " + file.getAbsolutePath());
37. } catch (IOException e) {
38. System.out.println(e.getMessage());
39. }
40.}
