https://mediawiki.zeropage.org/index.php?action=history&feed=atom&title=MySQL%2FPasswordFunctionInJava 2026-05-15T10:04:33Z Revision history for this page on the wiki MediaWiki 1.39.8 https://mediawiki.zeropage.org/index.php?title=MySQL/PasswordFunctionInJava&diff=34747&oldid=prev 2021-02-07T05:23:50Z

<p></p> <p><b>New page</b></p><div> <br /> // JDK 1.5 이상에서 동작. (String.format 함수 때문에)<br /> <br /> package cau.util;<br /> <br /> public class MySqlUtil {<br /> public static String toMySQLPassword(String aStr) {<br /> int nr = 1345345333;<br /> int add = 7;<br /> int nr2 = 0x12345671;<br /> <br /> int size = aStr.length();<br /> for(int i=0;i&amp;lt;size;i++)<br /> {<br /> if(aStr.charAt(i) == &#039; &#039; || aStr.charAt(i) == &#039;\t&#039;) continue; /* skipp space in password */<br /> int tmp = (aStr.charAt(i));<br /> nr ^= (((nr &amp;amp; 63)+ add)* tmp) + (nr &amp;lt;&amp;lt; 8);<br /> nr2 += (nr2 &amp;lt;&amp;lt; 8) ^ nr;<br /> add += tmp;<br /> }<br /> int result1=nr &amp;amp; ((1 &amp;lt;&amp;lt; 31) -1); /* Don&#039;t use sign bit (str2int) */<br /> int result2=nr2 &amp;amp; ((1 &amp;lt;&amp;lt; 31) -1);<br /> String result = String.format(&quot;%08x%08x&quot;,new Object[]{new Integer(result1),new Integer(result2)});<br /> return result;<br /> <br /> }<br /> <br /> public static void main(String[] args) {<br /> System.out.println(MySqlUtil.toMySQLPassword(&quot;hahaha&quot;));<br /> System.out.println(MySqlUtil.toMySQLPassword(&quot;testing&quot;));<br /> System.out.println(MySqlUtil.toMySQLPassword(&quot;abcd1234&quot;));<br /> }<br /> }</div>

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