md5.jsp

本论坛开发环境：jdk1.5+Tomcat5.5.17+sql server2000+Windows 2000 1、支持HTML内容编辑,支持网络贴图与附件上传等,支持多种版面风格. 2、论坛

<%@page import="java.security.*"%>
<%@page import="java.security.spec.*"%>

<%! 
public String md5(String s){ 
char hexDigits[] = { 
'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 
'e', 'f'}; 
try { 
byte[] strTemp = s.getBytes(); 
MessageDigest mdTemp = MessageDigest.getInstance("MD5"); 
mdTemp.update(strTemp); 
byte[] md = mdTemp.digest(); 
int j = md.length; 
char str[] = new char[j * 2]; 
int k = 0; 
for (int i = 0; i < j; i++) { 
byte byte0 = md[i]; 
str[k++] = hexDigits[byte0 >>> 4 & 0xf]; 
str[k++] = hexDigits[byte0 & 0xf]; 
} 
return new String(str); 
} 
catch (Exception e){ 
return null; 
} 
} 
%>