spring security session-management

最新推荐文章于 2025-04-08 10:07:13 发布

liyong313

最新推荐文章于 2025-04-08 10:07:13 发布

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分类专栏： spring 文章标签： java

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本文介绍了如何使用Spring Security进行会话管理配置，包括限制用户的并发登录、设置过期URL等，通过具体代码示例展示了如何实现防止同一用户多次登录。

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1、在配置文件中增加一个listen

<listener>
  <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>

2、FilterChainProxy 增加 ConcurrentSessionFilter ，这个Filter 要两个属性 sessionRegistry（需要SessionRegistryImpl实例expiredUrl过滤失败时跳转的url）

<http>
<custom-filter position="FORM_LOGIN_FILTER" ref="loginFilter" />
<custom-filter position="CONCURRENT_SESSION_FILTER" ref="concurrentSessionFilter" />
<!-- 防止同一用户多次登录，使第二次登录失 -->
<session-management session-authentication-strategy-ref="concurrentSessionControlStrategy" />
</http>
<!-- Login Filter -->
<beans:bean id="loginFilter" class="org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter">
	 <beans:property name="sessionAuthenticationStrategy" ref="concurrentSessionControlStrategy" />
	<beans:property name="authenticationManager" ref="authenticationManager" />
	<beans:property name="authenticationSuccessHandler" ref="loginAuthenticationSuccessHandler" />
	<beans:property name="authenticationFailureHandler" ref="loginAuthenticationFailureHandler" />
</beans:bean>
<beans:bean id="concurrentSessionFilter" class="org.springframework.security.web.session.ConcurrentSessionFilter">
		<beans:property name="sessionRegistry" ref="sessionRegistry" />
		<beans:property name="expiredUrl" value="/admin/login" />
		<beans:property name="logoutHandlers">
			<beans:list>
				<beans:ref bean="logoutHandler" />
			</beans:list>
		</beans:property>
	</beans:bean>
<beans:bean id="logoutHandler" class="org.springframework.security.web.authentication.logout.SecurityContextLogoutHandler" />
<!-- the flowing settings for session management -->
<beans:bean id="sessionRegistry" class="org.springframework.security.core.session.SessionRegistryImpl" />
<beans:bean id="concurrentSessionControlStrategy" class="org.springframework.security.web.authentication.session.ConcurrentSessionControlStrategy">
		<beans:constructor-arg name="sessionRegistry" ref="sessionRegistry" />
		<beans:property name="maximumSessions" value="1" />
		<beans:property name="migrateSessionAttributes" value="true" />
		<beans:property name="exceptionIfMaximumExceeded" value="false" />
</beans:bean>

3、代码 AbstractAuthenticationProcessingFilter 在方法dofilter()根据属性 concurrentSessionControlStrategy的方法onAuthentication

在ConcurrentSessionFilter Filter 中做具体是通过还是不过的验证

  public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain)
            throws IOException, ServletException {
        HttpServletRequest request = (HttpServletRequest) req;
        HttpServletResponse response = (HttpServletResponse) res;

        HttpSession session = request.getSession(false);

        if (session != null) {
            SessionInformation info = sessionRegistry.getSessionInformation(session.getId());

            if (info != null) {
                if (info.isExpired()) {
                    // Expired - abort processing
                    doLogout(request, response);

                    String targetUrl = determineExpiredUrl(request, info);

                    if (targetUrl != null) {
                        redirectStrategy.sendRedirect(request, response, targetUrl);

                        return;
                    } else {
                        response.getWriter().print("This session has been expired (possibly due to multiple concurrent " +
                                "logins being attempted as the same user).");
                        response.flushBuffer();
                    }

                    return;
                } else {
                    // Non-expired - update last request date/time
                    sessionRegistry.refreshLastRequest(info.getSessionId());
                }
            }
        }

        chain.doFilter(request, response);
    }

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