jsp 应用系统整合discuz论坛用户系统

关键代码

/** *//**
     * MD5算法
     * @param strToEncrypt
     * @return
     */
    public static String  Md5(String strToEncrypt)
    {
        char hexDigits[] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
                'a', 'b', 'c', 'd', 'e', 'f' };
            try 
            {
                byte[] strTemp = strToEncrypt.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 "";
            }

    }

整合函数

package com.tecamo.cms.util;

import java.io.UnsupportedEncodingException;
import java.util.Map;
import java.util.Random;
import java.util.Set;

import com.tecamo.util.encrypt.EncryptString;

import sun.misc.BASE64Decoder;


public class DiscuzPassportUtils 
{

        public static String passportEncrypt(String src, String key) {
                Random random = new Random();
                random.setSeed(System.currentTimeMillis());
                String rand = "" + random.nextInt() % 32000;
                String encryptKey = EncryptString.encryptMD5(rand);

                int ctr = 0;
                String tmp = "";

                for (int i = 0; i < src.length(); ++i) {
                        ctr = (ctr == encryptKey.length() ? 0 : ctr);
                        tmp += encryptKey.charAt(ctr);
                        char c = (char) (src.charAt(i) ^ encryptKey.charAt(ctr));
                        tmp += c;
                        ctr++;
                }
                String passportKey = passportKey(tmp, key);
                return new sun.misc.BASE64Encoder().encode(passportKey.getBytes());
        }

        public static String passortDecrypt(String src, String key) {
                byte[] bytes = null;
                try {
                        bytes = new BASE64Decoder().decodeBuffer(src);
                        src = new String(bytes);
                } catch (Exception e) {
                        return null;
                }
                src = passportKey(src, key);

                String tmp = "";
                for (int i = 0; i < src.length(); ++i) {
                        char c = (char)(src.charAt(i) ^ src.charAt(++i));
                        tmp += c;
                }
                return tmp;
        }

        public static String passportKey(String src, String key) {
                String encryptKey = EncryptString.encryptMD5(key);
                int ctr = 0;
                String tmp = "";
                for (int i = 0; i < src.length(); ++i) {
                        ctr = (ctr == encryptKey.length() ? 0 : ctr);
                        char c = (char) (src.charAt(i) ^ encryptKey.charAt(ctr));
                        tmp += c;
                        ctr++;
                }
                return tmp;
        }

        
        public static String passportEncode(Map<String, String> data) {
                Set<String> keys = data.keySet();
                String ret = "";
                for (String key : keys) {
                        try {
                                ret += java.net.URLEncoder.encode(key, "UTF-8") + "=" + java.net.URLEncoder.encode(data.get(key), "UTF-8") + "&";
                        } catch (UnsupportedEncodingException e) {
                                return "";
                        }
                }
                if (ret.length() > 0)
                        return ret.substring(0, ret.length() - 1);
                return "";
        }
}

调用方法:
login.jsp

<%@ page language="java" import="java.util.*" pageEncoding="gbk"%>
<%@page import="com.tecamo.util.web.MyRequest"%>
<%@page import="com.tecamo.cms.util.DiscuzPassportUtils"%>
<%@page import="com.tecamo.cms.util.ShareFunction"%>
<%@page import="com.tecamo.util.encrypt.EncryptString"%>
<%@page import="java.net.URLEncoder"%>
<%

String strUser=(String) session.getAttribute("username");
if(strUser!=null && !strUser.equals(""))
{
    out.println("当前用户:" + strUser);
}

String forward=MyRequest.getString(request,"forward","");
String action=MyRequest.getString(request,"action","");
if(action.equals("login"))
{
    String forumURL="http://devserver:8066";
    String userName=MyRequest.getString(request,"account","");
    String email=userName;
    String pwd=MyRequest.getString(request,"pwd","");
    Map<String, String> mb = new LinkedHashMap<String, String>();

    mb.put("time", ""+System.currentTimeMillis());
    mb.put("username", userName);
    mb.put("email", email);
    mb.put("password", pwd);
    String key = "12345678901"; 
    String enc=DiscuzPassportUtils.passportEncode(mb);
    String auth = DiscuzPassportUtils.passportEncrypt(enc, key);
    String verify = "login" + auth + forward + key;
    verify = EncryptString.encryptMD5(verify);                                        
    String location = forumURL+"/api/passport.php?action=login&auth="+URLEncoder.encode(auth, "UTF-8")+"&forward="+URLEncoder.encode(forward, "UTF-8")+"&verify="+URLEncoder.encode(verify, "UTF-8");

    response.sendRedirect(location);
    
    session.setAttribute("username",userName);
}

 %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
  
  </head>
  
  <body>
      <form>
          <table>
              <tr>
                  <td>帐号</td><td><input type="text" name="account"></td>
              </tr>
              <tr><td>密码</td><td><input type="password" name="pwd"></td></tr>
              <tr><td colspan="2">
              <input type="hidden" value="<%=forward%>">
              <input type="hidden" name="action" value="login">
              <input type="submit" value="登录"> </td></tr>
          </table>
      </form>
  </body>
</html>

logout.jsp

<%@ page language="java" import="java.util.*" pageEncoding="ISO-8859-1"%>
<%@page import="com.tecamo.util.encrypt.EncryptString"%>
<%@page import="java.net.URLEncoder"%>
<%@page import="com.tecamo.util.web.MyRequest"%>
<%
//discuz 地址
String forumURL=http://dddd:8066;
String forward=MyRequest.getString(request,"forward","");
//discuz 配置的私钥
String key = "12345678901";                                        
String verify = "logout" + forward + key;
verify = EncryptString.encryptMD5(verify);        
String location = forumURL+"/api/passport.php?action=logout&forward="+URLEncoder.encode(forward, "UTF-8")+"&verify="+URLEncoder.encode(verify, "UTF-8");
response.sendRedirect(location);
session.invalidate();
%>