Java的HTML的URL字符编码转换为Java字符串的函数

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