package?com.commen.json;
import?java.io.UnsupportedEncodingException;

public?class?base64Util?{
	
????private?static?char[]?base64EncodeChars?=?new?char[]{
????????????‘A‘?‘B‘?‘C‘?‘D‘?‘E‘?‘F‘?‘G‘?‘H‘
????????????‘I‘?‘J‘?‘K‘?‘L‘?‘M‘?‘N‘?‘O‘?‘P‘
????????????‘Q‘?‘R‘?‘S‘?‘T‘?‘U‘?‘V‘?‘W‘?‘X‘
????????????‘Y‘?‘Z‘?‘a(chǎn)‘?‘b‘?‘c‘?‘d‘?‘e‘?‘f‘
????????????‘g‘?‘h‘?‘i‘?‘j‘?‘k‘?‘l‘?‘m‘?‘n‘
????????????‘o‘?‘p‘?‘q‘?‘r‘?‘s‘?‘t‘?‘u‘?‘v‘
????????????‘w‘?‘x‘?‘y‘?‘z‘?‘0‘?‘1‘?‘2‘?‘3‘
????????????‘4‘?‘5‘?‘6‘?‘7‘?‘8‘?‘9‘?‘+‘?‘/‘};
????private?static?byte[]?base64DecodeChars?=?new?byte[]{
????????????-1?-1?-1?-1?-1?-1?-1?-1?-1?-1?-1?-1?-1?-1?-1?-1
????????????-1?-1?-1?-1?-1?-1?-1?-1?-1?-1?-1?-1?-1?-1?-1?-1
????????????-1?-1?-1?-1?-1?-1?-1?-1?-1?-1?-1?62?-1?-1?-1?63
????????????52?53?54?55?56?57?58?59?60?61?-1?-1?-1?-1?-1?-1
????????????-1?0?1?2?3?4?5?6?7?8?9?10?11?12?13?14
????????????15?16?17?18?19?20?21?22?23?24?25?-1?-1?-1?-1?-1
????????????-1?26?27?28?29?30?31?32?33?34?35?36?37?38?39?40
????????????41?42?43?44?45?46?47?48?49?50?51?-1?-1?-1?-1?-1};
???
????public?static?String?encode（byte[]?data）?{
????????StringBuffer?sb?=?new?StringBuffer（）;
????????int?len?=?data.length;
????????int?i?=?0;
????????int?b1?b2?b3;
????????while?（i?????????????b1?=?data[i++]?&?0xff;
????????????if?（i?==?len）?{
????????????????sb.append（base64EncodeChars[b1?>>>?2]）;
????????????????sb.append（base64EncodeChars[（b1?&?0x3）?<????????????????sb.append（“==“）;
????????????????break;
????????????}
????????????b2?=?data[i++]?&?0xff;
????????????if?（i?==?len）?{
????????????????sb.append（base64EncodeChars[b1?>>>?2]）;
????????????????sb.append（base64EncodeChars[（（b1?&?0x03）?<>>?4）]）;
????????????????sb.append（base64EncodeChars[（b2?&?0x0f）?<????????????????sb.append（“=“）;
????????????????break;
????????????}
????????????b3?=?data[i++]?&?0xff;
????????????sb.append（base64EncodeChars[b1?>>>?2]）;
????????????sb.append（base64EncodeChars[（（b1?&?0x03）?<>>?4）]）;
????????????sb.append（base64EncodeChars[（（b2?&?0x0f）?<>>?6）]）;
????????????sb.append（base64EncodeChars[b3?&?0x3f]）;
????????}
????????return?sb.toString（）;
????}
???
????public?static?byte[]?decode（String?str）?throws?UnsupportedEncodingException?{
????????StringBuffer?sb?=?new?StringBuffer（）;
????????byte[]?data?=?str.getBytes（“US-ASCII“）;
????????int?len?=?data.length;
????????int?i?=?0;
????????int?b1?b2?b3?b4;
????????while?（i????????????
????????????do?{
????????????????b1?=?base64DecodeChars[data[i++]];
????????????}?while?（i?????????????if?（b1?==?-1）?break;
???????????
????????????do?{
????????????????b2?=?base64DecodeChars
????????????????????????[data[i++]];
????????????}?while?（i?????????????if?（b2?==?-1）?break;
?????

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----

?????文件????????406??2014-08-01?16:40??Excel2Json\.classpath

?????文件????????386??2014-08-01?17:21??Excel2Json\.project

?????文件?????????57??2014-08-01?15:42??Excel2Json\.settings\org.eclipse.core.resources.prefs

?????文件????????598??2014-08-01?15:40??Excel2Json\.settings\org.eclipse.jdt.core.prefs

?????文件???????3185??2014-08-01?17:22??Excel2Json\bin\com\commen\json\base64Util.class

?????文件????????917??2014-08-01?17:22??Excel2Json\bin\com\commen\json\baseData.class

?????文件???????2897??2014-08-01?17:26??Excel2Json\bin\com\commen\json\ExcelOperater.class

?????文件???????1239??2014-08-01?17:22??Excel2Json\bin\com\commen\json\MD5Util.class

?????文件?????180110??2014-07-29?09:01??Excel2Json\lib\gson-2.1.jar

?????文件?????720702??2014-08-01?15:58??Excel2Json\lib\jxl.jar

?????文件???????3771??2014-08-01?17:22??Excel2Json\src\com\commen\json\base64Util.java

?????文件????????381??2014-08-01?17:22??Excel2Json\src\com\commen\json\baseData.java

?????文件???????1689??2014-08-01?17:26??Excel2Json\src\com\commen\json\ExcelOperater.java

?????文件???????1321??2014-08-01?17:22??Excel2Json\src\com\commen\json\MD5Util.java

?????文件???????7680??2014-08-01?17:28??Excel2Json\test.xls

?????目錄??????????0??2014-08-01?17:28??Excel2Json\bin\com\commen\json

?????目錄??????????0??2014-08-01?17:28??Excel2Json\src\com\commen\json

?????目錄??????????0??2014-08-01?17:28??Excel2Json\bin\com\commen

?????目錄??????????0??2014-08-01?17:28??Excel2Json\src\com\commen

?????目錄??????????0??2014-08-01?17:28??Excel2Json\bin\com

?????目錄??????????0??2014-08-01?17:28??Excel2Json\src\com

?????目錄??????????0??2014-08-01?17:28??Excel2Json\.settings

?????目錄??????????0??2014-08-01?17:28??Excel2Json\bin

?????目錄??????????0??2014-08-01?17:28??Excel2Json\lib

?????目錄??????????0??2014-08-01?17:28??Excel2Json\src

?????目錄??????????0??2014-08-01?17:28??Excel2Json

-----------?---------??----------?-----??----

???????????????925339????????????????????26