CAS 单点登录登出 https://mp.csdn.net/postedit/81201333
SpringSecurity框架 ― ― 安全校验 https://blog.csdn.net/Thor_Selen_Liu/article/details/81220568
前言:
通过前面两个知识点的学习,下面我们介绍,将两个知识点进行整合使用的方法。在前的 SpringSecurity框架中,我们即做校验又做登录,现在我们 整合 CAS 单点登录,将登录功能交给 CAS 去做,SpringSecurity 只管授权。
话不多说,下面我们以 demo 的方式进行演示:
大概步骤: ① 导入 spring+springsecurity 的依赖 ② 添加配置 springSecurity.xml 和 web.xml ③ 页面 ④ 认证类
一、先创建一个 spring-security.xml 工程
1. 建立 maven (war) 工程 casclient_demo3,引入 spring 依赖,和spring security 相关依赖,tomcat 端口设为 9003
<dependencies> <!-- spring 依赖 --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context-support</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>${spring.version}</version> </dependency> <!-- spring security web --> <dependency> <groupId>org.springframework.security</groupId> <artifactId>spring-security-web</artifactId> <version>4.1.0.RELEASE</version> </dependency> <dependency> <groupId>org.springframework.security</groupId> <artifactId>spring-security-config</artifactId> <version>4.1.0.RELEASE</version> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>servlet-api</artifactId> <version>2.5</version> <scope>provided</scope> </dependency> </dependencies> <build> <plugins> <!-- java编译插件 --> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <version>3.2</version> <configuration> <source>1.8</source> <target>1.8</target> <encoding>UTF-8</encoding> </configuration> </plugin> <plugin> <groupId>org.apache.tomcat.maven</groupId> <artifactId>tomcat7-maven-plugin</artifactId> <configuration> <!-- 指定端口 --> <port>9003</port> <!-- 请求路径 --> <path>/</path> </configuration> </plugin> </plugins> </build>
2. 配置文件 springSecurity.xml 和 web.xml 添加过滤器等配置
(1) springSecurity.xml 文件配置
<?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"> <!-- 匿名访问 --> <http pattern="/login.html" security="none"></http> <http pattern="/login_error.html" security="none"></http> <!-- 拦截规则 --> <http use-expressions="false"> <intercept-url pattern="/**" access="ROLE_USER"/> <form-login login-page="/login.html" default-target-url="/index.html" authentication-failure-url="/login_error.html"/> <csrf disabled="true"/> <headers> <frame-options policy="SAMEORIGIN"/> </headers> <logout logout-url="logout" logout-success-url="/login.html"/> </http> <!-- 认证管理器 --> <authentication-manager> <authentication-provider> <user-service> <!-- 指定哪个用户进行登录 这种方式是写死的,应该是去数据库里查找 authorities:指定当前用户 有哪些权限 --> <user name="admin" password="admin" authorities="ROLE_USER"/> </user-service> </authentication-provider> </authentication-manager> </beans:beans> (2) web.xml 文件配置
<?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" version="2.5"> <display-name>casclient_demo3</display-name> <welcome-file-list> <welcome-file>index.html</welcome-file> <welcome-file>index.htm</welcome-file> <welcome-file>index.jsp</welcome-file> <welcome-file>default.html</welcome-file> <welcome-file>default.htm</welcome-file> <welcome-file>default.jsp</welcome-file> </welcome-file-list> <!-- 通过监听器 加载配置文件 --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:springSecurity.xml</param-value> </context-param> <listener> <listener-class> org.springframework.web.context.ContextLoaderListener </listener-class> </listener> <!-- 解决post乱码 --> <filter> <filter-name>CharacterEncodingFilter</filter-name> <filter-class> org.springframework.web.filter.CharacterEncodingFilter </filter-class> <init-param> <param-name>encoding</param-name> <param-value>utf-8</param-value> </init-param> <init-param> <param-name>forceEncoding</param-name> <param-value>true</param-value> </init-param> </filter> <filter-mapping> <filter-name>CharacterEncodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <!-- spring security filter --> <filter> <filter-name>springSecurityFilterChain</filter-name> <filter-class> org.springframework.web.filter.DelegatingFilterProxy </filter-class> </filter> <filter-mapping> <filter-name>springSecurityFilterChain</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <servlet> <servlet-name>springmvc</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <!-- 指定加载的配置文件 ,通过参数contextConfigLocation加载 --> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:springmvc.xml</param-value> </init-param> </servlet> <servlet-mapping> <servlet-name>springmvc</servlet-name> <url-pattern>*.do</url-pattern> </servlet-mapping> </web-app> 3.创建页面
4. 认证类
package com.itcast.service; import java.util.ArrayList; import java.util.List; 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; /** * 认证类 */ public class UserDetailsServiceImpl implements UserDetailsService { public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException { System.out.println("经过了认证类的请求"); List<GrantedAuthority> grantAuths = new ArrayList(); grantAuths.add(new SimpleGrantedAuthority("ROLE_SELLER")); grantAuths.add(new SimpleGrantedAuthority("ROLE_USER")); /** * 认证信息(角色) * 参数:用户名 ,密码,权限集合 */ return new User(username,"",grantAuths ); } }
二、在第一步的基础上 对 CAS 进行集成
1. 添加 springsecurity 与 CAS 整合的依赖 jar 包
<!-- springsecurity 与 cas 整合的jar包 --> <dependency> <groupId>org.springframework.security</groupId> <artifactId>spring-security-cas</artifactId> <version>4.1.0.RELEASE</version> </dependency> <!-- CAS 核心的 jar 包 --> <dependency> <groupId>org.jasig.cas.client</groupId> <artifactId>cas-client-core</artifactId> <version>3.3.3</version> <!-- 排除的依赖 ,以防冲突 --> <exclusions> <exclusion> <groupId>org.slf4j</groupId> <artifactId>log4j-over-slf4j</artifactId> </exclusion> </exclusions> </dependency> 2. 修改 springSecurity.xml 配置文件 (本项目 最最最 重要的一部分)
注意:在spring-security 与 CAS 集成以后,原本在web.xml 中要配置的一大堆的过滤器 就不需要 web.xml 文件中配置了,都放到 spring-security.xml 中进行配置。
(1) 删除原来有 security 管理的登录内容。需要删除的内容如下:
<!-- http标签中的内容 --> <form-login login-page="/login.html" default-target-url="/index.html" authentication-failure-url="/login_error.html"/> <headers> <frame-options policy="SAMEORIGIN"/> </headers> <logout logout-url="logout" logout-success-url="/login.html"/> <!-- 认证管理器 --> <authentication-manager> <authentication-provider> <user-service> <!-- 指定哪个用户进行登录 这种方式是写死的,应该是去数据库里查找 authorities:指定当前用户 有哪些权限 --> <user name="admin" password="admin" authorities="ROLE_USER"/> </user-service> </authentication-provider> </authentication-manager> (2) 既然 security 不再管理登录,那么 就需要配置 CAS 的信息 来管理登录 即:各种过滤器
注意:这些过滤器 是一种调用关系: 认证过滤器 --> 认证管理器 --> 认证提供者(真正干活的)
认证提供者里面包含:① 用户详细信息服务提供者(里面没有登录的信息只有权限的信息);② 票据认证器
<?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"> <!-- 匿名访问 --> <http pattern="/login.html" security="none"></http> <http pattern="/login_error.html" security="none"></http> <!-- 拦截规则 --> <!-- entry-point-ref:切入点,登录的操作交给 CAS 操作 --> <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 --> <!-- security 已经预定义好了很多过滤器,我们只需要往里面插入我们自定义的 security 不仅可以与 CAS 进行集合,还可以与第三方如微信、QQ等集合通过 oauth。 --> <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://localhost:9100/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:9003/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://localhost:9100/cas"/> </beans:bean> </beans:property> <!-- 固定写法 --> <beans:property name="key" value="an_id_for_this_auth_provider_only"/> </beans:bean> <!-- 认证类 --> <beans:bean id="userDetailsService" class="com.itcast.service.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://localhost:9100/cas/logout?service=http://www.baidu.com"/> <beans:constructor-arg> <beans:bean class="org.springframework.security.web.authentication.logout.SecurityContextLogoutHandler"/> </beans:constructor-arg> <!-- 直接输入"/logout/cas"即可退出,代替上面service参数 --> <beans:property name="filterProcessesUrl" value="/logout/cas"/> </beans:bean> <!-- 单点登出 结束 --> </beans:beans>
总结:对于不同的项目 在配置里面只需要更改四处即可
① 单点登录服务器登录的URL,只需要改 端口号
<beans:property name="loginUrl" value="http://localhost:9100/cas/login"/> ② 自己项目的路径,只需要改 端口号
<!--service 配置自身工程的根地址+/login/cas --> <beans:property name="service" value="http://localhost:9003/login/cas"/> ③ 票据认证器的地址,只需要改 端口号
<beans:constructor-arg index="0" value="http://localhost:9100/cas"/> ④ 单点登出的地址,只需要改 端口号 和 service 参数
<beans:constructor-arg value="http://localhost:9100/cas/logout?service=http://www.baidu.com"/> (3) 编写一个获取登录名的 类
package com.itcast.service; import java.util.HashMap; import java.util.Map; import org.springframework.security.core.context.SecurityContextHolder; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; /** * 运营商登录的控制层的类 * @author jt * */ @RestController @RequestMapping("/login") public class LoginController { @RequestMapping("/showName") public String showName(){ // Map map = new HashMap(); // 获得用户名信息: String username = SecurityContextHolder.getContext().getAuthentication().getName(); // map.put("username", username); return username; } } 创建springmvc.xml 配置文件
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context" xmlns:dubbo="http://code.alibabatech.com/schema/dubbo" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd"> <context:component-scan base-package="com.itcast.service" /> <mvc:annotation-driven/> </beans> (4) 测试 运行
启动 CAS 的服务,启动工程,地址栏:localhost:9003