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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>

</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();