关于网友提出的“ MD5加密问题”问题疑问，本网通过在网上对“ MD5加密问题”有关的相关答案进行了整理，供用户进行参考，详细问题解答如下：
问题： MD5加密问题
描述: package news;
import java.security.*;
import java.security.spec.*;<>
import java.math.*;
public class MD5{
public String convert32(String s){
char hexChars[] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'};
try {
byte[] bytes = s.getBytes();
MessageDigest md = MessageDigest.getInstance("MD5");
md.update(bytes);
bytes = md.digest();
int j = bytes.length;
char[] chars = new char[j * 2];
int k = 0;
for (int i = 0; i < bytes.length; i++) {
byte b = bytes[i];
chars[k++] = hexChars[b >>> 4 & 0xf];
chars[k++] = hexChars[b & 0xf];
}
return new String(chars);
}
catch (Exception e){
return null;
}
}
public String convert16(String s){
String ns=convert32(s).substring(8,24);
return ns;
}
}
Login 中代码：
response.setContentType("text/html;charset=GBK");
out=response.getWriter();
HttpSession session=request.getSession(true);
adminname=request.getParameter("adminname");
psw=request.getParameter("password");
String password=(psw);
AdminInfo AI=new AdminInfo();
int adminid=AI.isExist(adminname,password);
if(adminid>0){
session.setAttribute("adminid",new Integer(adminid));
session.setAttribute("power",new Integer(AI.getPower()));
response.sendRedirect("index.jsp");
}
else{
response.sendRedirect("default.jsp");
defalt代码：
<%@ page c/>
<%@ page language="java" %>
<%@ page import="news.NewsInfo" %>
新闻中心
<%@include file="include/global.jsp"%>
管理员登录
用户名：
|
密 码：|
|
|
|
|