代码已上传至Github
地址：https://github.com/ylw-github/Spring-Security-CAS-Demo.git
Spring Security测试工程搭建
SpringSecurity工程以前有上传到Github，直接拿来使用（地址：https://github.com/YangLinWei93/Spring-Security-Demo.git）
Spring Security 与 CAS 集成
（1）引入依赖
<dependency> <groupId>org.springframework.security</groupId> <artifactId>spring-security-cas</artifactId> <version>4.1.0.RELEASE</version> </dependency> <dependency> <groupId>org.jasig.cas.client</groupId> <artifactId>cas-client-core</artifactId> <version>3.3.3</version> <exclusions> <exclusion> <groupId>org.slf4j</groupId> <artifactId>log4j-over-slf4j</artifactId> </exclusion> </exclusions> </dependency>
（2）修改 spring-security.xml
<?xml version="1.0" encoding="UTF-8"?> <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.xsd http://www.springframework.org/schema/security http://www.springframework.org/schema/security/spring-security.xsd"> <!-- entry-point-ref 入口点引用 --> <http use-expressions="false" entry-point-ref="casProcessingFilterEntryPoint"> <intercept-url pattern="/**" access="ROLE_USER"/> <csrf disabled="true"/> <!-- custom-filter 为过滤器， position 表示将过滤器放在指定的位置上，before 表示放 在指定位置之前 ，after 表示放在指定的位置之后 --> <custom-filter ref="casAuthenticationFilter" position="CAS_FILTER"/> <custom-filter ref="requestSingleLogoutFilter" before="LOGOUT_FILTER"/> <custom-filter ref="singleLogoutFilter" before="CAS_FILTER"/> </http> <!-- CAS 入口点 开始 --> <beans:bean id="casProcessingFilterEntryPoint" class="org.springframework.security.cas.web.CasAuthenticationEntryPoint"> <!-- 单点登录服务器登录 URL --> <beans:property name="loginUrl" value="http://192.168.25.128:8080/cas/login"/> <beans:property name="serviceProperties" ref="serviceProperties"/> </beans:bean> <beans:bean id="serviceProperties" class="org.springframework.security.cas.ServiceProperties"> <!--service 配置自身工程的根地址+/login/cas --> <beans:property name="service" value="http://localhost:8077/login/cas"/> </beans:bean> <!-- CAS 入口点 结束 --> <!-- 认证过滤器 开始 --> <beans:bean id="casAuthenticationFilter" class="org.springframework.security.cas.web.CasAuthenticationFilter"> <beans:property name="authenticationManager" ref="authenticationManager"/> </beans:bean> <!-- 认证管理器 --> <authentication-manager alias="authenticationManager"> <authentication-provider ref="casAuthenticationProvider"></authentication-provider> </authentication-manager> <!-- 认证提供者 --> <beans:bean id="casAuthenticationProvider" class="org.springframework.security.cas.authentication.CasAuthenticationProvider"> <beans:property name="authenticationUserDetailsService"> <beans:bean class="org.springframework.security.core.userdetails.UserDetailsByNameServiceWrapper"> <beans:constructor-arg ref="userDetailsService"/> </beans:bean> </beans:property> <beans:property name="serviceProperties" ref="serviceProperties"/> <!-- ticketValidator 为票据验证器 --> <beans:property name="ticketValidator"> <beans:bean class="org.jasig.cas.client.validation.Cas20ServiceTicketValidator"> <beans:constructor-arg index="0" value="http://192.168.25.128:8080/cas"/> </beans:bean> </beans:property> <beans:property name="key" value="an_id_for_this_auth_provider_only"/> </beans:bean> <!-- 认证类 --> <beans:bean id="userDetailsService" class="com.pyg.UserDetailsServiceImpl"/> <!-- 认证过滤器 结束 --> <!-- 单点登出 开始 --> <beans:bean id="singleLogoutFilter" class="org.jasig.cas.client.session.SingleSignOutFilter"/> <beans:bean id="requestSingleLogoutFilter" class="org.springframework.security.web.authentication.logout.LogoutFilter"> <beans:constructor-arg value="http://192.168.25.128:8080/cas/logout?service=http://www.baidu.com"/> <beans:constructor-arg> <beans:bean class="org.springframework.security.web.authentication.logout.SecurityContextLogoutHandler"/> </beans:constructor-arg> <beans:property name="filterProcessesUrl" value="/logout/cas"/> </beans:bean> <!-- 单点登出 结束 --> </beans:beans>
（3）创建 UserDetailsServiceImpl
package com.pyg; import org.springframework.security.core.GrantedAuthority; import org.springframework.security.core.authority.SimpleGrantedAuthority; import org.springframework.security.core.userdetails.User; import org.springframework.security.core.userdetails.UserDetails; import org.springframework.security.core.userdetails.UserDetailsService; import org.springframework.security.core.userdetails.UsernameNotFoundException; import java.util.ArrayList; import java.util.List; public class UserDetailsServiceImpl implements UserDetailsService { @Override public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException { //构建角色集合 List<GrantedAuthority> authorities=new ArrayList(); authorities.add(new SimpleGrantedAuthority("ROLE_USER")); return new User(username, "" , authorities); } }
获取登录名
我们在处理后端逻辑需要获得登录名，那么如何获取单点登录的用户名呢? 其实和我们之前获得用户名的方式是完全相同的，我们下面来做个测试。
创建 UserController
import org.springframework.security.core.context.SecurityContextHolder; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; @RestController public class UserController { @RequestMapping("/findLoginUser") public void findLoginUser() { String name = SecurityContextHolder.getContext().getAuthentication().getName(); System.out.println(name); } }
退出登录
修改 spring-security.xml
<beans:bean id="requestSingleLogoutFilter" class="org.springframework.security.web.authentication.logout.LogoutFilter"> <beans:constructor-arg value="http://192.168.25.128:8080/cas/logout?service=http://www.baidu.com"/> <beans:constructor-arg> <beans:bean class="org.springframework.security.web.authentication.logout.SecurityContextLogoutHandler"/> </beans:constructor-arg> <beans:property name="filterProcessesUrl" value="/logout/cas"/> </beans:bean>
<a href="/logout/cas">退出登录</a>
创建 index2.html,将 index2.html 设置为可匿名访问
<http pattern="/index2.html" security="none"></http>
