Java的HTML的URL字符编码转换为Java字符串的函数

1. import java.util.regex.*;
3. public class UnicodeCeToJavaString {
4. static final String mbs = "&#(//d+);"; //like "ロ"
5. public static String EncodeCesToChars(String paramStr){
6. String mbChar;
7. StringBuffer sb = new StringBuffer();
8. Pattern pat = Pattern.compile(mbs);
9. Matcher mat = pat.matcher(paramStr);
10. while (mat.find()){
11. mbChar = getMbCharStr(mat.group(1)); //pass the digit part
12. mat.appendReplacement(sb, mbChar);
13. }
14. mat.appendTail(sb);
15. return new String(sb);
16. }
17. /* worker method */
18. static String getMbCharStr(String digits){ //handle "12525" part which is a
19. char[] cha = new char[1];                //Unicode value stringnized
20. try{
21. int val = Integer.parseInt(digits);
22. char ch = (char)val;
23. cha[0] = ch;
24. }
25. catch(Exception e){
26. System.err.println("Error from getMbCharStr:");
27. e.printStackTrace(System.err);
28. }
29. return new String(cha); //easy!, because Java uses Unicode
30. }
31. }