我在我的网络应用程序中使用Spring安全性,现在我想要列出所有登录我程序的用户。
我如何才能访问该列表?它们不是已经存在于spring框架内的某个地方吗?与 SecurityContextHolder 或 SecurityContextRepository 一样?
答案 0 :(得分:58)
要访问所有登录用户的列表,您需要将SessionRegistry实例注入您的bean。
@Autowired
@Qualifier("sessionRegistry")
private SessionRegistry sessionRegistry;
然后使用受到惩罚的SessionRegistry,您可以访问所有主体的列表:
List<Object> principals = sessionRegistry.getAllPrincipals();
List<String> usersNamesList = new ArrayList<String>();
for (Object principal: principals) {
if (principal instanceof User) {
usersNamesList.add(((User) principal).getUsername());
}
}
但是在注入会话注册表之前,您需要在spring-security.xml中定义会话管理部分(查看Session Management section in Spring Security reference documentation),在并发控制部分中,您应该为会话注册表对象设置别名( session) -registry-alias ),你将通过它注入它。
<security:http access-denied-page="/error403.jsp" use-expressions="true" auto-config="false">
<security:session-management session-fixation-protection="migrateSession" session-authentication-error-url="/login.jsp?authFailed=true">
<security:concurrency-control max-sessions="1" error-if-maximum-exceeded="true" expired-url="/login.html" session-registry-alias="sessionRegistry"/>
</security:session-management>
...
</security:http>
答案 1 :(得分:32)
在JavaConfig中,它看起来像这样:
@Configuration
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {
@Override
protected void configure(final HttpSecurity http) throws Exception {
// ...
http.sessionManagement().maximumSessions(1).sessionRegistry(sessionRegistry());
}
@Bean
public SessionRegistry sessionRegistry() {
return new SessionRegistryImpl();
}
@Bean
public ServletListenerRegistrationBean<HttpSessionEventPublisher> httpSessionEventPublisher() {
return new ServletListenerRegistrationBean<HttpSessionEventPublisher>(new HttpSessionEventPublisher());
}
}
调用代码如下所示:
public class UserController {
@Autowired
private SessionRegistry sessionRegistry;
public void listLoggedInUsers() {
final List<Object> allPrincipals = sessionRegistry.getAllPrincipals();
for(final Object principal : allPrincipals) {
if(principal instanceof SecurityUser) {
final SecurityUser user = (SecurityUser) principal;
// Do something with user
System.out.println(user);
}
}
}
}
请注意,SecurityUser
是我自己的类,它实现了UserDetails
。
答案 2 :(得分:7)
如果我错了,请纠正我。
我认为@Adam's答案不完整。我注意到列表中已经过期的会话再次出现。
public class UserController {
@Autowired
private SessionRegistry sessionRegistry;
public void listLoggedInUsers() {
final List<Object> allPrincipals = sessionRegistry.getAllPrincipals();
for (final Object principal : allPrincipals) {
if (principal instanceof SecurityUser) {
final SecurityUser user = (SecurityUser) principal;
List<SessionInformation> activeUserSessions =
sessionRegistry.getAllSessions(principal,
/* includeExpiredSessions */ false); // Should not return null;
if (!activeUserSessions.isEmpty()) {
// Do something with user
System.out.println(user);
}
}
}
}
}
希望它有所帮助。
答案 3 :(得分:6)
如果我错了,请纠正我。
我认为@ Adam&s和@ elysch的答案是不完整的。我注意到需要添加监听器:
servletContext.addListener(HttpSessionEventPublisher.class);
到
public class AppInitializer implements WebApplicationInitializer {
@Override
public void onStartup(ServletContext servletContext) {
...
servletContext.addListener(HttpSessionEventPublisher.class);
}
有安全标识:
@Configuration
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {
@Override
protected void configure(final HttpSecurity http) throws Exception {
// ...
http.sessionManagement().maximumSessions(1).sessionRegistry(sessionRegistry());
}
@Bean
public SessionRegistry sessionRegistry() {
return new SessionRegistryImpl();
}
@Bean
public HttpSessionEventPublisher httpSessionEventPublisher() {
return new HttpSessionEventPublisher();
}
}
然后你将获得当前的在线用户!
答案 4 :(得分:2)
您需要注入SessionRegistry
(如前面提到的),然后可以在一个管道中执行以下操作:
public List<UserDetails> findAllLoggedInUsers() {
return sessionRegistry.getAllPrincipals()
.stream()
.filter(principal -> principal instanceof UserDetails)
.map(UserDetails.class::cast)
.collect(Collectors.toList());
}
答案 5 :(得分:1)
类似于@rolyanos解决方案,对我来说,我的作品始终有效:
-用于控制器
@RequestMapping(value = "/admin")
public String admin(Map<String, Object> model) {
if(sessionRegistry.getAllPrincipals().size() != 0) {
logger.info("ACTIVE USER: " + sessionRegistry.getAllPrincipals().size());
model.put("activeuser", sessionRegistry.getAllPrincipals().size());
}
else
logger.warn("EMPTY" );
logger.debug(log_msg_a + " access ADMIN page. Access granted." + ANSI_RESET);
return "admin";
}
-用于前端
<tr th:each="activeuser, iterStat: ${activeuser}">
<th><b>Active users: </b></th> <td align="center" th:text="${activeuser}"></td>
</tr>
-用于春季确认
@Bean
public SessionRegistry sessionRegistry() {
return new SessionRegistryImpl();
}
@Bean
public ServletListenerRegistrationBean<HttpSessionEventPublisher> httpSessionEventPublisher() {
return new ServletListenerRegistrationBean<HttpSessionEventPublisher>(new HttpSessionEventPublisher());
}
@Override
protected void configure(HttpSecurity http) throws Exception {
http.logout()
.logoutSuccessUrl("/home")
.logoutUrl("/logout")
.invalidateHttpSession(true)
.deleteCookies("JSESSIONID");
http.authorizeRequests()
.antMatchers("/", "/home")
.permitAll()
.antMatchers("/admin")
.hasRole("ADMIN")
.anyRequest()
.authenticated()
.and()
.formLogin()
.loginPage("/home")
.defaultSuccessUrl("/main")
.permitAll()
.and()
.logout()
.permitAll();
http.sessionManagement().maximumSessions(1).sessionRegistry(sessionRegistry());
http.authorizeRequests().antMatchers("/webjars/**").permitAll();
http.exceptionHandling().accessDeniedPage("/403");
}
答案 6 :(得分:0)
发现此注释非常重要且相关:
“ [21]通过以下机制执行重定向的身份验证 身份验证(例如表单登录)不会被 SessionManagementFilter,因为过滤器不会在 验证请求。会话管理功能必须 在这种情况下,请分别处理。”
https://docs.spring.io/spring-security/site/docs/3.1.x/reference/session-mgmt.html#d0e4399
此外,很显然很多人都很难让 sessionRegistry.getAllPrincipals()返回不同于空数组的内容。就我而言,我通过在自己的自定义 authenticationFilter 中添加 sessionAuthenticationStrategy 来解决此问题:
@Bean
public CustomUsernamePasswordAuthenticationFilter authenticationFilter() throws Exception {
...
authenticationFilter.setSessionAuthenticationStrategy(sessionAuthenticationStrategy());
}
@Bean
public SessionRegistry sessionRegistry() {
return new SessionRegistryImpl();
}
//cf. https://stackoverflow.com/questions/32463022/sessionregistry-is-empty-when-i-use-concurrentsessioncontrolauthenticationstrate
public SessionAuthenticationStrategy sessionAuthenticationStrategy() {
List<SessionAuthenticationStrategy> stratList = new ArrayList<>();
SessionFixationProtectionStrategy concStrat = new SessionFixationProtectionStrategy();
stratList.add(concStrat);
RegisterSessionAuthenticationStrategy regStrat = new RegisterSessionAuthenticationStrategy(sessionRegistry());
stratList.add(regStrat);
CompositeSessionAuthenticationStrategy compStrat = new CompositeSessionAuthenticationStrategy(stratList);
return compStrat;
}