单点登陆多点注销shiro的简单实现

方式一 屡次登陆方式

  1. MVC Controller 的 sso 方法
@RequestMapping(value = "ssoLogin.do")
public String sso(String userName, String password,HttpServletRequest request, HttpServletResponse response) {
	AuthUser user = userDao.getUserByname(userName);
	 UsernamePasswordToken token = new UsernamePasswordToken(username, password);
	 //获取当前的Subject
     Subject currentUser = SecurityUtils.getSubject();
	 currentUser.login(token);
	currentUser.getSession("true").setAttribute("userName",userName);//shrio session
	currentUser.getSession().setAttribute("loginName",userName);//http session
	return "xxx"; //页面
}
  1. 调用
String path = "osdp";//request.getContextPath();//项目地址
String basePath = request.getScheme() + ":" +  request.getServerName() + ":" +  request.getServerPort() + path;//url
String userName = UserHolder.getUserName();
String password =  UserHolder.getPassword();
String data = "userName="  + userName + "&password="  + password;
return "redirect:" +  basePath + "/ssoLogin" + "?" + data;

方式二 自定义Token令牌

  1. MVC Controller 映射 sso 方法
/**
	* 单点登陆(如已经登陆,则直接跳转)
	* @param userCode 登陆用户编码
	* @param token 登陆令牌,令牌组成:sso密钥+用户名+日期,进行md5加密,举例:
	* String secretKey = Global.getConfig("shiro.sso.secretKey");
	* String token = Digests.md5(secretKey + userCode + DateUtils.getDate("yyyyMMdd"));
	* @param url 登陆成功后跳转的url地址。
	* @param relogin 是否从新登陆,须要从新登陆传递true
	* 例如:http://localhost/project/sso/{token}?url=xxx&relogin=true
	*/
@RequestMapping(value = "sso/{userCode}/{token}")
public String sso(@PathVariable String userCode, @PathVariable String token,@RequestParam(required=true) String url, String relogin, Model model) {
	Principal principal = SecurityUtils.getSubject().getPrincipal();
	// 若是已经登陆
	if(principal != null){
		// 若是设置强制从新登陆,则从新登陆
		if (BooleanUtils.toBoolean(relogin)){
			SecurityUtils.getSubject().logout();
		}
		// 不然,直接跳转到目标页
		else{
			return "redirect:" + Encodes.urlDecode2(url);
		}
	}
	// 进行单点登陆
	if (token != null){
		UsernamePasswordToken upt = new UsernamePasswordToken();
	try {
		upt.setUsername(userCode); // 登陆用户名
		upt.setPassword(token.toCharArray()); // 密码组成:sso密钥+用户名+日期,进行md5加密,举例: Digests.md5(secretKey+username+20150101))
		upt.setParams(upt.toString()); // 单点登陆识别参数,see: AuthorizingRealm.assertCredentialsMatch
	} catch (Exception ex){
		if (!ex.getMessage().startsWith("msg:")){
			ex = new AuthenticationException("msg:受权令牌错误,请联系管理员。");
		}
		model.addAttribute("exception", ex);
	}
	try {
		SecurityUtils.getSubject().login(upt);
		return "redirect:" + Encodes.urlDecode2(url);
	} catch (AuthenticationException ae) {
		if (!ae.getMessage().startsWith("msg:")){
			ae = new AuthenticationException("msg:受权错误,请检查用户配置,若不能解决,请联系管理员。");
		}
		model.addAttribute("exception", ae);
		}
	}
	return "error/403";
}
  1. 重载org.apache.shiro.realm.AuthorizingRealm类的assertCredentialsMatch方法
/**
* 认证密码匹配调用方法
*/
@Override
protected void assertCredentialsMatch(AuthenticationToken authcToken,
	AuthenticationInfo info) throws AuthenticationException {
	UsernamePasswordToken token = (UsernamePasswordToken) authcToken;
	// 若单点登陆,则使用单点登陆受权方法。
	if (token.toString().equals(token.getParams())){
		// sso密钥+用户名+日期,进行md5加密,举例: Digests.md5(secretKey+username+20150101))
		String secretKey = Global.getConfig("shiro.sso.secretKey");
		String password = Digests.md5(secretKey + token.getUsername() + DateUtils.getDate("yyyyMMdd"));
		if (password.equals(String.valueOf(token.getPassword()))){
			return;
		}
	}
	super.assertCredentialsMatch(token, info);
}
  1. 实现Shiro无状态访问,如经过传递sessionid参数便可实现会话访问
public class SessionManager extends DefaultWebSessionManager {
	public SessionManager() {
		super();
	}
	@Override
	protected Serializable getSessionId(ServletRequest request, ServletResponse response) {
		// 若是参数中包含“__sid”参数,则使用此sid会话。 例如:http://localhost/project?__sid=xxx&__cookie=true
		// 其实这里还可使用以下参数:cookie中的session名称:如:JSESSIONID=xxx,路径中的 ;JESSIONID=xxx,但建议仍是使用 __sid参数。
		String sid = request.getParameter("__sid");
		if (StringUtils.isNotBlank(sid)) {
			// 是否将sid保存到cookie,浏览器模式下使用此参数。
			if (WebUtils.isTrue(request, "__cookie")){
				HttpServletRequest rq = (HttpServletRequest)request;
				HttpServletResponse rs = (HttpServletResponse)response;
				Cookie template = getSessionIdCookie();
				Cookie cookie = new SimpleCookie(template);
				cookie.setValue(sid); cookie.saveTo(rq, rs);
			}
			// 设置当前session状态
			request.setAttribute(ShiroHttpServletRequest.REFERENCED_SESSION_ID_SOURCE,
			ShiroHttpServletRequest.URL_SESSION_ID_SOURCE); // session来源与url
			request.setAttribute(ShiroHttpServletRequest.REFERENCED_SESSION_ID, sid);
			request.setAttribute(ShiroHttpServletRequest.REFERENCED_SESSION_ID_IS_VALID, Boolean.TRUE);
			return sid;
		}else{
			return super.getSessionId(request, response);
		}
	}
}
  1. 调用
String path = "osdp";//request.getContextPath();//项目地址
String basePath = request.getScheme() + ":" +  request.getServerName() + ":" +  request.getServerPort() + path;//url
String userName = UserHolder.getUserName();
String secretKey = "SSO";
String token =   DigestUtils.md5Hex(secretKey + userName + CommonUtil.getToday());
String data = "userName="  + userName + "&token="  + token;
return "redirect:" +  basePath + "/ssoLogin" + "?" + data;

注意:shiro配置放开单点请求:/sso** =anon

以上两种方式能够实现简单的单点登陆,基本思想就是多个子系统登陆一遍(自定义token登陆或用户名密码登陆,原理同样)。java

多点注销

每个子项目注销一遍:apache

final String loginName = session.getAttribute("loginName");//当前登陆账号

new Thread(new Runnable(){
	@Override
	public void run(){
		HttpUtil.get("xxx/ssoLogout?loginName=" + loginName);//接口调用:注销其余项目
	}
}).start();
//注销
SecurityUtils.getSubject().logout();

void ssoLogout(HttpServletRequest request, HttpServletResponse response){
	String loginName = request.getParameter("loginName"); //注销账号
	   
 	// 1.获取当前用户sessionId
    String currentUserSessionId = SecurityUtils.getSubject().getSession().getId().toString();
    // 2.获取shiro的sessionManager
    DefaultWebSecurityManager securityManager = (DefaultWebSecurityManager) SecurityUtils.getSecurityManager();
    DefaultWebSessionManager sessionManager = (DefaultWebSessionManager)securityManager.getSessionManager();
    // 3.获取全部已登陆用户的session列表
    Collection<Session> sessions = sessionManager.getSessionDAO().getActiveSessions();
	//清除session
	if(!CollectionUtils.isEmpty(sessions)&&sessions.size() > 1){
		 User user = null;
		for(Session session:sessions){
			 // 4. 获取已登陆用户的session的key值
            SimplePrincipalCollection simplePrincipalCollection = (SimplePrincipalCollection) session.getAttribute(DefaultSubjectContext.PRINCIPALS_SESSION_KEY);
            // 5. 获取new SimpleAuthenticationInfo(user, pwd, this.getName())中放进去的第一个参数
            user = (User) simplePrincipalCollection.getPrimaryPrincipal();
			// 6. 清除当前用户及之前登陆时保存的session会话
            if (loginName.equals(user.getUserName()) && session.getId().equals(currentUserSessionId)) {
                sessionManager.getSessionDAO().delete(session);
                System.out.println("清理用户["+loginName+"],SessionId为["+session.getId()+"]的Session信息!");
            }
		}
	}
}
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