J2ME URLDecoder UTF-8

1. publicclassURL{
2. /**
3. *解码URL串
4. *
5. *@paramurl待解码的URL串
6. *@return解码后的字符串
7. */
8. publicstaticStringdecode(Stringurl){
9. char[]chars=url.toCharArray();
10. intcursor=0;
11. ByteArrayOutputStreambaos=newByteArrayOutputStream();
12. DataOutputStreamdos=null;
13. try{
14. dos=newDataOutputStream(baos);
15. while(cursor<chars.length){
16. intcurr=chars[cursor++];
17. if(curr=='%'){
18. StringBuffertmp=newStringBuffer();
19. charcr=chars[cursor++];
20. charlf=chars[cursor++];
21. tmp.append(cr).append(lf);
22. Integerresult=Integer.valueOf(tmp.toString(),16);
23. curr=result.intValue();
24. }
25. dos.writeByte(curr);
26. }
27. dos.flush();
28. baos.flush();
29. byte[]data=baos.toByteArray();
30. Stringtext=UTF8.decode(data,0,data.length);
31. returntext;
32. }catch(Exceptione){
33. e.printStackTrace();
34. }finally{
35. try{
36. if(dos!=null)dos.close();
37. if(baos!=null)baos.close();
38. }catch(Exceptione){
39. }
40. }
41. returnnull;
42. }
43. }
47. publicclassUTF8{
49. publicstaticStringdecode(bytein[],intoffset,intlength){
50. StringBufferbuff=newStringBuffer();
51. intmax=offset+length;
52. for(inti=offset;i<max;i++){
53. charc=0;
54. if((in[i]&0x80)==0){
55. c=(char)in[i];
56. }elseif((in[i]&0xe0)==0xc0){//11100000
57. c|=((in[i++]&0x1f)<<6);//00011111
58. c|=((in[i]&0x3f)<<0);//00111111
59. }elseif((in[i]&0xf0)==0xe0){//11110000
60. c|=((in[i++]&0x0f)<<12);//00001111
61. c|=((in[i++]&0x3f)<<6);//00111111
62. c|=((in[i]&0x3f)<<0);//00111111
63. }elseif((in[i]&0xf8)==0xf0){//11111000
64. c|=((in[i++]&0x07)<<18);//00000111(move18,not16?)
65. c|=((in[i++]&0x3f)<<12);//00111111
66. c|=((in[i++]&0x3f)<<6);//00111111
67. c|=((in[i]&0x3f)<<0);//00111111
68. }else{
69. c='?';
70. }
71. buff.append(c);
72. }
73. returnbuff.toString();
74. }
75. }