jsp 应用系统整合discuz论坛用户系统-优快云博客

本文介绍了一种基于MD5加密算法的Discuz护照登录系统实现方案，包括密码加密、参数编码及验证过程等关键步骤。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

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();

转载于:https://www.cnblogs.com/yg_zhang/archive/2007/10/25/937565.html