package?org.md5.util;

import?java.security.MessageDigest;
public?class?MD5Util?{
	public?final?static?String?getMD5String（String?s）?{
		char?hexDigits[]?=?{?‘0‘?‘1‘?‘2‘?‘3‘?‘4‘
				‘5‘?‘6‘?‘7‘?‘8‘?‘9‘
				‘A‘?‘B‘?‘C‘?‘D‘?‘E‘?‘F‘?};
		try?{
			byte[]?btInput?=?s.getBytes（）;
			//獲得MD5摘要算法的?MessageDigest?對象
			MessageDigest?mdInst?=?MessageDigest.getInstance（“MD5“）;
			//使用指定的字節更新摘要
			mdInst.update（btInput）;
			//獲得密文
			byte[]?md?=?mdInst.digest（）;
			//把密文轉換成十六進制的字符串形式
			int?j?=?md.length;
			char?str[]?=?new?char[j?*?2];
			int?k?=?0;
			for?（int?i?=?0;?i?				byte?byte0?=?md[i];
				str[k++]?=?hexDigits[byte0?>>>?4?&?0xf];
				str[k++]?=?hexDigits[byte0?&?0xf];
			}
			return?new?String（str）;
		}
		catch?（Exception?e）?{
			e.printStackTrace（）;
			return?null;
		}
	}
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2014-05-21?20:55??Test_WebSafe\
?????文件?????????374??2014-05-21?20:58??Test_WebSafe\.classpath
?????文件?????????388??2014-05-21?20:55??Test_WebSafe\.project
?????目錄???????????0??2014-05-21?20:55??Test_WebSafe\.settings\
?????文件?????????598??2014-05-21?20:55??Test_WebSafe\.settings\org.eclipse.jdt.core.prefs
?????目錄???????????0??2014-05-21?20:58??Test_WebSafe\bin\
?????目錄???????????0??2014-05-21?20:58??Test_WebSafe\bin\org\
?????目錄???????????0??2014-05-21?20:58??Test_WebSafe\bin\org\md5\
?????目錄???????????0??2014-05-21?20:58??Test_WebSafe\bin\org\md5\util\
?????文件????????1298??2014-05-21?20:58??Test_WebSafe\bin\org\md5\util\MD5Util.class
?????目錄???????????0??2014-05-21?20:58??Test_WebSafe\bin\org\rsa\
?????目錄???????????0??2014-05-21?20:58??Test_WebSafe\bin\org\rsa\util\
?????文件????????5303??2014-05-21?20:58??Test_WebSafe\bin\org\rsa\util\RSAUtil.class
?????目錄???????????0??2014-05-21?20:58??Test_WebSafe\bin\org\yanzi\
?????目錄???????????0??2014-05-21?20:58??Test_WebSafe\bin\org\yanzi\websafe\
?????文件????????1636??2014-05-21?21:22??Test_WebSafe\bin\org\yanzi\websafe\TestCode.class
?????目錄???????????0??2014-05-21?20:57??Test_WebSafe\src\
?????目錄???????????0??2014-05-21?20:57??Test_WebSafe\src\org\
?????目錄???????????0??2014-05-21?20:57??Test_WebSafe\src\org\md5\
?????目錄???????????0??2014-05-21?20:57??Test_WebSafe\src\org\md5\util\
?????文件?????????881??2014-05-21?20:57??Test_WebSafe\src\org\md5\util\MD5Util.java
?????目錄???????????0??2014-05-21?20:57??Test_WebSafe\src\org\rsa\
?????目錄???????????0??2014-05-21?20:57??Test_WebSafe\src\org\rsa\util\
?????文件????????7330??2014-05-21?20:57??Test_WebSafe\src\org\rsa\util\RSAUtil.java
?????目錄???????????0??2014-05-21?20:57??Test_WebSafe\src\org\yanzi\
?????目錄???????????0??2014-05-21?20:57??Test_WebSafe\src\org\yanzi\websafe\
?????文件????????1178??2014-05-21?21:22??Test_WebSafe\src\org\yanzi\websafe\TestCode.java
?????文件?????1593423??2014-05-19?16:06??rsa.jar