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我使用 spring security3 和 spring mvc3 来构建一个 web 项目。有一个名为 index.jsp 的页面,登录用户名和在线用户数将显示在此屏幕的顶部。登录系统有两种方式:

  1. 从登录页面,使用'j_spring_security_check'的默认配置帖子
  2. 使用手动身份验证的ajax登录

当我使用登录页面登录索引页面时,在线信息计数和用户名都正确显示。但是当我使用ajax登录(手动验证)时,出现问题:在线用户数没有更新,它总是显示0,而用户名可以正常显示。控制器部分:

@Autowired
@Qualifier("authenticationManager")
AuthenticationManager authenticationManager;
@Autowired
SecurityContextRepository repository;

@RequestMapping(value="/ajaxLogin")
@ResponseBody
public String performLogin(
        @RequestParam("j_username") String username,
        @RequestParam("j_password") String password,
        HttpServletRequest request, HttpServletResponse response) {
            UsernamePasswordAuthenticationToken token =  new UsernamePasswordAuthenticationToken(username, password);
            try {
                Authentication auth = authenticationManager.authenticate(token);
                SecurityContextHolder.getContext().setAuthentication(auth);
                repository.saveContext(SecurityContextHolder.getContext(), request, response);
                logger.info("Authentication successfully! ");
                return "{\"status\": true}";
            } catch (BadCredentialsException ex) {
                return "{\"status\": false, \"error\": \"Bad Credentials\"}";
            }
}

弹簧安全.xml

<beans:beans xmlns="http://www.springframework.org/schema/security"
xmlns:beans="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/security
http://www.springframework.org/schema/security/spring-security-3.0.3.xsd">

<http auto-config="true" use-expressions="true">    
    <intercept-url pattern="/login" access="permitAll" />
    <intercept-url pattern="/index" access="permitAll" />
    <form-login login-page="/login" default-target-url="/index"
        authentication-failure-url="/loginfailed" />
    <logout logout-success-url="/logout" />

    <session-management invalid-session-url="/index">
        <concurrency-control max-sessions="1"
            error-if-maximum-exceeded="false" />
    </session-management>
</http>

<authentication-manager alias="authenticationManager">
    <authentication-provider>
        <jdbc-user-service data-source-ref="dataSource"

            users-by-username-query="
                select login_id,login_pwd, is_enabled 
                from t_user where login_id=?"

            authorities-by-username-query="
                select u.login_id, r.authority from t_user u, t_roles r 
                where u.u_id = r.u_id and u.login_id =?  " />
    </authentication-provider>
</authentication-manager>

我用来获取在线登录用户数的方法:

public class BaseController {
    protected Logger logger = Logger.getLogger(this.getClass());

    @Autowired  
    SessionRegistry sessionRegistry;  

    @ModelAttribute("numUsers")  
    public int getNumberOfUsers() {  
        logger.info("in getNumberOfUsers() ...");
        return sessionRegistry.getAllPrincipals().size();  
    }  
}

用于显示登录用户名的代码:

<div>
        <security:authorize ifAllGranted="ROLE_USER">
            <p><a href="#TODO">Welcome <security:authentication property="principal.username" />!</a> &nbsp;&nbsp;&nbsp;
            <a href="<c:url value="/j_spring_security_logout" />">Logout</a></p>
        </security:authorize>
    </div>

用于显示登录用户数的代码:

<div style="color:#3CC457">
        ${numUsers} user(s) are logged in! 
    </div>

我猜是因为当我手动进行身份验证时,spring security 不会为用户创建新会话。我通过编写自定义的 SessionCounterListener 来验证它。

public class SessionCounterListener implements HttpSessionListener {
 private Logger logger = Logger.getLogger(this.getClass());
 private static int totalActiveSessions;

 public static int getTotalActiveSession(){
       return totalActiveSessions;
 }

@Override
public void sessionCreated(HttpSessionEvent event) {
       totalActiveSessions++;
       logger.info("sessionCreated - add one session into counter" + event.getSession().getId());   
}

@Override
public void sessionDestroyed(HttpSessionEvent event) {
       totalActiveSessions--;
       logger.info("sessionDestroyed - deduct one session from counter" + event.getSession().getId());  
}   

}

以下是操作序列的日志文件的关键内容:正常登录 -> 正常注销 -> ajax 登录 -> ajax 注销。

sessionDestroyed - deduct one session 1spueddcmdao019udc43k3uumw
sessionCreated - add one session 14nro6bzyjy0x1jtvnqjx31v1
sessionDestroyed - deduct one session 14nro6bzyjy0x1jtvnqjx31v1
sessionCreated - add one session e6jqz5qy6412118iph66xvaa1

实际上,ajax 登录/注销没有给出任何输出。

那么现在,我怎样才能获得正确的登录用户数?为什么不同的身份验证方式有不同的方法来处理会话?任何帮助将不胜感激。

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2 回答 2

3

当您手动添加Principal到 时SecurityContext,它不会将用户添加到SessionRegistry. 您需要SessionRegistry手动添加用户会话。

SecurityContextHolder.getContext().setAuthentication(auth);
sessionRegistry.registerNewSession(request.getSession().getId(), auth.getPrincipal());

希望能帮助到你!!

于 2014-12-12T12:45:55.093 回答
0

在您的 Springspring-security.xml文件中,AJAX 身份验证 ( /ajaxLogin) 的 URL 未被明确允许。因此,请求应该被 Spring 阻止。我建议添加这个:

<intercept-url pattern="/ajaxLogin" access="permitAll" />
于 2013-08-18T06:17:41.967 回答