<packaging>war</packaging>
<properties>
<spring.version>5.0.5.RELEASE</spring.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-config</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-cas</artifactId>
<version>${spring.version}</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>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
<scope>provided</scope>
</dependency>
</dependencies>
<build>
<plugins>
<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>
<?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">
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring-security.xml</param-value>
</context-param>
<listener>
<listener-class>
org.springframework.web.context.ContextLoaderListener
</listener-class>
</listener>
<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>
</web-app>
（3）添加spring-security.xml （资源中提供）
<?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://localhost: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: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: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="cn.itcast.demo.service.UserDetailServiceImpl"/>
<!-- 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:8080/cas/logout"/>
<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>
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