1 import java.io.UnsupportedEncodingException;
2
3 public class TestUnicode{
4
5 public static void main(String[] args) throws UnsupportedEncodingException {
6 String s = "简介";
7 System.out.println(s+" --的unicode编码是："+gbEncoding(s));
8 System.out.println(gbEncoding(s) + " --转换成中文是："+decodeUnicode(gbEncoding(s)));
9
10 //System.out.println(gbEncoding(s) + " --转换成中文是："+decodeUnicode("\\u7b80\\u4ecb"));
11 }
12
13 /*
14 * 中文转unicode编码
15 */
16 public static String gbEncoding(final String gbString) {
17 char[] utfBytes = gbString.toCharArray();
18 String unicodeBytes = "";
19 for (int i = 0; i < utfBytes.length; i++) {
20 String hexB = Integer.toHexString(utfBytes[i]);
21 if (hexB.length() <= 2) {
22 hexB = "00" + hexB;
23 }
24 unicodeBytes = unicodeBytes + "\\u" + hexB;
25 }
26 return unicodeBytes;
27 }
28 /*
29 * unicode编码转中文
30 */
31 public static String decodeUnicode(final String dataStr) {
32 int start = 0;
33 int end = 0;
34 final StringBuffer buffer = new StringBuffer();
35 while (start > -1) {
36 end = dataStr.indexOf("\\u", start + 2);
37 String charStr = "";
38 if (end == -1) {
39 charStr = dataStr.substring(start + 2, dataStr.length());
40 } else {
41 charStr = dataStr.substring(start + 2, end);
42 }
43 char letter = (char) Integer.parseInt(charStr, 16); // 16进制parse整形字符串。
44 buffer.append(new Character(letter).toString());
45 start = end;
46 }
47 return buffer.toString();
48 }
49 }
