package?com.itmyhome;

import?java.io.ByteArrayOutputStream;

public?class?Login?{

	private?String?username;
	private?String?password;
	public?String?login（）?{
		System.out.println（“密文：username?->?“?+?username?+?“?password?->?“?+?password）;
		System.out.println（“原文：username?->?“?+?new?String（decode（username））?+?“?password?->?“?+?new?String（decode（password）））;
		return?“success“;
	}

	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?};

	/**
	?*?解密
	?*?@param?str
	?*?@return
	?*/
	public?static?byte[]?decode（String?str）?{
		byte[]?data?=?str.getBytes（）;
		int?len?=?data.length;
		ByteArrayOutputStream?buf?=?new?ByteArrayOutputStream（len）;
		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;
			}
			buf.write（（int）?（（b1?<>>?4）））;

			do?{
				b3?=?data[i++];
				if?（b3?==?61）?{
					return?buf.toByteArray（）;
				}
				b3?=?base64DecodeChars[b3];
			}?while?（i?			if?（b3?==?-1）?{
				break;
			}
			buf.write（（int）?（（（b2?&?0x0f）?<>>?2）））;

			do?{
				b4?=?data[i++];
				if?（b4?==?61）?{
					return?buf.toByteArray（）;
				}
				b4?=?base64DecodeChars[b4];
			}?while?（i?			if?（b4?==?-1）?{
				break;
			}
			buf.write（（int）?（（（b3?&?0x03）?<		}
		return?buf.toByteArray（）;
	}
	
	public?static?void?main（String[]?args）?{
	}

	public?String?getUsername（）?{
		return?username;
	}

	public?void?setUsername（String?username）?{
		this.username?=?username;
	}

	public?String?getPassword（）?{
		return?password;
	}

	public?void?setPassword（String?password）?{
		this.password?=?password;
	}

}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2015-04-04?11:10??encrypt?demo\
?????目錄???????????0??2015-04-03?14:57??encrypt?demo\encrypt\
?????文件????????1069??2015-04-03?14:57??encrypt?demo\encrypt\.classpath
?????目錄???????????0??2015-04-03?14:57??encrypt?demo\encrypt\.myeclipse\
?????文件?????????295??2015-04-03?16:03??encrypt?demo\encrypt\.mymetadata
?????文件????????1413??2015-04-03?16:03??encrypt?demo\encrypt\.project
?????目錄???????????0??2015-04-03?14:57??encrypt?demo\encrypt\.settings\
?????文件?????????500??2015-04-03?14:57??encrypt?demo\encrypt\.settings\.jsdtscope
?????文件????????1040??2015-04-03?16:03??encrypt?demo\encrypt\.settings\com.genuitec.eclipse.j2eedt.core.prefs
?????文件??????????49??2015-04-03?14:57??encrypt?demo\encrypt\.settings\org.eclipse.wst.jsdt.ui.superType.container
?????文件???????????6??2015-04-03?14:57??encrypt?demo\encrypt\.settings\org.eclipse.wst.jsdt.ui.superType.name
?????目錄???????????0??2015-04-03?14:57??encrypt?demo\encrypt\src\
?????目錄???????????0??2015-04-03?14:57??encrypt?demo\encrypt\src\com\
?????目錄???????????0??2015-04-03?14:57??encrypt?demo\encrypt\src\com\itmyhome\
?????文件????????2871??2015-04-03?15:56??encrypt?demo\encrypt\src\com\itmyhome\Login.java
?????文件?????????354??2015-04-03?14:57??encrypt?demo\encrypt\src\struts.xml
?????目錄???????????0??2015-04-03?15:02??encrypt?demo\encrypt\WebRoot\
?????文件?????????827??2015-04-03?15:17??encrypt?demo\encrypt\WebRoot\index.jsp
?????目錄???????????0??2015-04-03?15:02??encrypt?demo\encrypt\WebRoot\js\
?????文件???????92556??2015-04-03?15:02??encrypt?demo\encrypt\WebRoot\js\jquery-1.8.0.min.js
?????文件????????2309??2015-04-03?15:53??encrypt?demo\encrypt\WebRoot\login.jsp
?????目錄???????????0??2015-04-03?14:57??encrypt?demo\encrypt\WebRoot\meta-INF\
?????文件??????????36??2015-04-03?14:57??encrypt?demo\encrypt\WebRoot\meta-INF\MANIFEST.MF
?????目錄???????????0??2015-04-03?14:57??encrypt?demo\encrypt\WebRoot\WEB-INF\
?????目錄???????????0??2015-04-03?16:03??encrypt?demo\encrypt\WebRoot\WEB-INF\classes\
?????目錄???????????0??2015-04-03?16:03??encrypt?demo\encrypt\WebRoot\WEB-INF\classes\com\
?????目錄???????????0??2015-04-03?16:03??encrypt?demo\encrypt\WebRoot\WEB-INF\classes\com\itmyhome\
?????文件????????3518??2015-04-03?16:03??encrypt?demo\encrypt\WebRoot\WEB-INF\classes\com\itmyhome\Login.class
?????文件?????????354??2015-04-03?14:57??encrypt?demo\encrypt\WebRoot\WEB-INF\classes\struts.xml
?????目錄???????????0??2015-04-03?14:57??encrypt?demo\encrypt\WebRoot\WEB-INF\lib\
?????文件???????69002??2015-04-03?14:57??encrypt?demo\encrypt\WebRoot\WEB-INF\lib\commons-fileupload-1.3.1.jar
............此處省略10個文件信息