⒈是什么？
即控制业务系统中一个用户只能有一个Session
⒉解决方案
1.当这个用户在其它地方登录的时候，把之前的Session失效掉。
1 package cn.coreqi.security.config; 2 3 import cn.coreqi.security.Filter.SmsCodeFilter; 4 import cn.coreqi.security.Filter.ValidateCodeFilter; 5 import cn.coreqi.security.session.CoreqiExpiredSessionStrategy; 6 import org.springframework.beans.factory.annotation.Autowired; 7 import org.springframework.context.annotation.Bean; 8 import org.springframework.context.annotation.Configuration; 9 import org.springframework.security.config.annotation.web.builders.HttpSecurity; 10 import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter; 11 import org.springframework.security.crypto.password.NoOpPasswordEncoder; 12 import org.springframework.security.crypto.password.PasswordEncoder; 13 import org.springframework.security.web.authentication.AuthenticationFailureHandler; 14 import org.springframework.security.web.authentication.AuthenticationSuccessHandler; 15 import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter; 16 17 @Configuration 18 public class WebSecurityConfig extends WebSecurityConfigurerAdapter { 19 20 @Autowired 21 private AuthenticationSuccessHandler coreqiAuthenticationSuccessHandler; 22 23 @Autowired 24 private AuthenticationFailureHandler coreqiAuthenticationFailureHandler; 25 26 @Autowired 27 private SmsCodeAuthenticationSecurityConfig smsCodeAuthenticationSecurityConfig; 28 29 @Bean 30 public PasswordEncoder passwordEncoder(){ 31 return NoOpPasswordEncoder.getInstance(); 32 } 33 34 35 @Override 36 protected void configure(HttpSecurity http) throws Exception { 37 ValidateCodeFilter validateCodeFilter = new ValidateCodeFilter(); 38 validateCodeFilter.setAuthenticationFailureHandler(coreqiAuthenticationFailureHandler); 39 40 SmsCodeFilter smsCodeFilter = new SmsCodeFilter(); 41 42 43 //http.httpBasic() //httpBasic登录 BasicAuthenticationFilter 44 http.addFilterBefore(smsCodeFilter, UsernamePasswordAuthenticationFilter.class) //加载用户名密码过滤器的前面 45 .addFilterBefore(validateCodeFilter, UsernamePasswordAuthenticationFilter.class) //加载用户名密码过滤器的前面 46 .formLogin() //表单登录 UsernamePasswordAuthenticationFilter 47 .loginPage("/coreqi-signIn.html") //指定登录页面 48 //.loginPage("/authentication/require") 49 .loginProcessingUrl("/authentication/form") //指定表单提交的地址用于替换UsernamePasswordAuthenticationFilter默认的提交地址 50 .successHandler(coreqiAuthenticationSuccessHandler) //登录成功以后要用我们自定义的登录成功处理器，不用Spring默认的。 51 .failureHandler(coreqiAuthenticationFailureHandler) //自己体会把 52 .and() 53 .sessionManagement() 54 .invalidSessionUrl("session/invalid") //session过期后跳转的URL 55 .maximumSessions(1) //配置最大的Session数量，即同一个用户后面登录所产生的Session之前登录所产生的Session给失效掉 56 .expiredSessionStrategy(new CoreqiExpiredSessionStrategy()) 57 .and() 58 .and() 59 .authorizeRequests() //对授权请求进行配置 60 .antMatchers("/coreqi-signIn.html","/code/image","/session/invalid").permitAll() //指定登录页面不需要身份认证 61 .anyRequest().authenticated() //任何请求都需要身份认证 62 .and().csrf().disable() //禁用CSRF 63 .apply(smsCodeAuthenticationSecurityConfig); 64 //FilterSecurityInterceptor 整个SpringSecurity过滤器链的最后一环 65 } 66 }
1 package cn.coreqi.security.session; 2 3 import org.springframework.security.web.session.SessionInformationExpiredEvent; 4 import org.springframework.security.web.session.SessionInformationExpiredStrategy; 5 6 import javax.servlet.ServletException; 7 import java.io.IOException; 8 9 public class CoreqiExpiredSessionStrategy implements SessionInformationExpiredStrategy { 10 @Override 11 public void onExpiredSessionDetected(SessionInformationExpiredEvent sessionInformationExpiredEvent) throws IOException, ServletException { 12 sessionInformationExpiredEvent.getResponse().setContentType("application/json;charset=UTF-8"); 13 sessionInformationExpiredEvent.getResponse().getWriter().write("并发登录！"); 14 } 15 }
2.当这个用户已经登陆了，禁止在其它地方登录。
1 package cn.coreqi.security.config; 2 3 import cn.coreqi.security.Filter.SmsCodeFilter; 4 import cn.coreqi.security.Filter.ValidateCodeFilter; 5 import cn.coreqi.security.session.CoreqiExpiredSessionStrategy; 6 import org.springframework.beans.factory.annotation.Autowired; 7 import org.springframework.context.annotation.Bean; 8 import org.springframework.context.annotation.Configuration; 9 import org.springframework.security.config.annotation.web.builders.HttpSecurity; 10 import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter; 11 import org.springframework.security.crypto.password.NoOpPasswordEncoder; 12 import org.springframework.security.crypto.password.PasswordEncoder; 13 import org.springframework.security.web.authentication.AuthenticationFailureHandler; 14 import org.springframework.security.web.authentication.AuthenticationSuccessHandler; 15 import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter; 16 17 @Configuration 18 public class WebSecurityConfig extends WebSecurityConfigurerAdapter { 19 20 @Autowired 21 private AuthenticationSuccessHandler coreqiAuthenticationSuccessHandler; 22 23 @Autowired 24 private AuthenticationFailureHandler coreqiAuthenticationFailureHandler; 25 26 @Autowired 27 private SmsCodeAuthenticationSecurityConfig smsCodeAuthenticationSecurityConfig; 28 29 @Bean 30 public PasswordEncoder passwordEncoder(){ 31 return NoOpPasswordEncoder.getInstance(); 32 } 33 34 35 @Override 36 protected void configure(HttpSecurity http) throws Exception { 37 ValidateCodeFilter validateCodeFilter = new ValidateCodeFilter(); 38 validateCodeFilter.setAuthenticationFailureHandler(coreqiAuthenticationFailureHandler); 39 40 SmsCodeFilter smsCodeFilter = new SmsCodeFilter(); 41 42 43 //http.httpBasic() //httpBasic登录 BasicAuthenticationFilter 44 http.addFilterBefore(smsCodeFilter, UsernamePasswordAuthenticationFilter.class) //加载用户名密码过滤器的前面 45 .addFilterBefore(validateCodeFilter, UsernamePasswordAuthenticationFilter.class) //加载用户名密码过滤器的前面 46 .formLogin() //表单登录 UsernamePasswordAuthenticationFilter 47 .loginPage("/coreqi-signIn.html") //指定登录页面 48 //.loginPage("/authentication/require") 49 .loginProcessingUrl("/authentication/form") //指定表单提交的地址用于替换UsernamePasswordAuthenticationFilter默认的提交地址 50 .successHandler(coreqiAuthenticationSuccessHandler) //登录成功以后要用我们自定义的登录成功处理器，不用Spring默认的。 51 .failureHandler(coreqiAuthenticationFailureHandler) //自己体会把 52 .and() 53 .sessionManagement() 54 .invalidSessionUrl("session/invalid") //session过期后跳转的URL 55 .maximumSessions(1) //配置最大的Session数量，即同一个用户后面登录所产生的Session之前登录所产生的Session给失效掉 56 .maxSessionsPreventsLogin(true) //当一个用户的Session数量达到最大数量以后，阻止后面的登陆行为 57 .expiredSessionStrategy(new CoreqiExpiredSessionStrategy()) 58 .and() 59 .and() 60 .authorizeRequests() //对授权请求进行配置 61 .antMatchers("/coreqi-signIn.html","/code/image","/session/invalid").permitAll() //指定登录页面不需要身份认证 62 .anyRequest().authenticated() //任何请求都需要身份认证 63 .and().csrf().disable() //禁用CSRF 64 .apply(smsCodeAuthenticationSecurityConfig); 65 //FilterSecurityInterceptor 整个SpringSecurity过滤器链的最后一环 66 } 67 }