spring boot-整合CAS Client实现单点登陆验证

实现方式一：使用第三方的starter

1、依赖的jar

<dependency>
            <groupId>net.unicon.cas</groupId>
            <artifactId>cas-client-autoconfig-support</artifactId>
            <version>1.4.0-GA</version>
        </dependency>

cas.server-url-prefix=http://127.0.0.1
cas.server-login-url=http://127.0.0.1/login
cas.client-host-url=http://192.26.4.28:8080
cas.validation-type=CAS

@SpringBootApplication
@ComponentScan(basePackages={"com.chhliu.emailservice"})
@EnableCasClient // 开启CAS支持
public class Application extends SpringBootServletInitializer{

	public static void main(String[] args) {
		SpringApplication.run(Application.class, args);
		
	}
}

通过上面的3步，就可以完成CAS的客户端认证了！

cas.validation-type目前支持3中方式：1、CAS；2、CAS3；3、SAML

其他可用的配置如下：

cas.authentication-url-patterns
cas.validation-url-patterns
cas.request-wrapper-url-patterns
cas.assertion-thread-local-url-patterns
cas.gateway
cas.use-session
cas.redirect-after-validation
cas.allowed-proxy-chains
cas.proxy-callback-url
cas.proxy-receptor-url
cas.accept-any-proxy
server.context-parameters.renew

实现方式二：手动配置

我们原来使用CAS Client，需要在web.xml中做如下配置：

<filter>
		<filter-name>authenticationFilter</filter-name>
		<filter-class>org.jasig.cas.client.authentication.AuthenticationFilter</filter-class>
		<init-param>
			<param-name>casServerLoginUrl</param-name>
			<param-value>http://127.0.0.1/login</param-value>
		</init-param>
		<init-param>
			<param-name>serverName</param-name>
			<param-value>http://192.26.4.28:8080</param-value>
		</init-param>
	</filter>
	<filter-mapping>
		<filter-name>authenticationFilter</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>
	<!-- 该过滤器负责对Ticket的校验工作，必须启用它 -->
	<filter>
		<filter-name>validationFilter</filter-name>
		<filter-class>org.jasig.cas.client.validation.Cas20ProxyReceivingTicketValidationFilter</filter-class>
		<init-param>
			<param-name>casServerUrlPrefix</param-name>
			<param-value>http://127.0.0.1</param-value>
		</init-param>
		<init-param>
			<param-name>serverName</param-name>
			<param-value>http://192.26.4.28:8080</param-value>
		</init-param>
		<!-- <init-param>
			<param-name>redirectAfterValidation</param-name>
			<param-value>true</param-value>
		</init-param>
		<init-param>
			<param-name>useSession</param-name>
			<param-value>true</param-value>
		</init-param> -->
	</filter>
	<filter-mapping>
		<filter-name>validationFilter</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>
	<!-- 该过滤器负责实现HttpServletRequest请求的包裹， 比如允许开发者通过HttpServletRequest的getRemoteUser()方法获得SSO登录用户的登录名，可选配置。 -->
	<filter>
		<filter-name>httpServletRequestWrapperFilter</filter-name>
		<filter-class>org.jasig.cas.client.util.HttpServletRequestWrapperFilter</filter-class>
	</filter>
	<filter-mapping>
		<filter-name>httpServletRequestWrapperFilter</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>

@Configuration
@Component
public class CasConfigure {
	
	@Bean
	public FilterRegistrationBean authenticationFilterRegistrationBean() {
		FilterRegistrationBean authenticationFilter = new FilterRegistrationBean();
		authenticationFilter.setFilter(new AuthenticationFilter());
		Map<String, String> initParameters = new HashMap<String, String>();
		initParameters.put("casServerLoginUrl", "http://127.0.0.1/login");
		initParameters.put("serverName", "http://192.26.4.28:8080");
		authenticationFilter.setInitParameters(initParameters);
		authenticationFilter.setOrder(2);
		List<String> urlPatterns = new ArrayList<String>();
		urlPatterns.add("/*");// 设置匹配的url
		authenticationFilter.setUrlPatterns(urlPatterns);
		return authenticationFilter;
	}
	
	@Bean
	public FilterRegistrationBean ValidationFilterRegistrationBean(){
		FilterRegistrationBean authenticationFilter = new FilterRegistrationBean();
		authenticationFilter.setFilter(new Cas20ProxyReceivingTicketValidationFilter());
		Map<String, String> initParameters = new HashMap<String, String>();
		initParameters.put("casServerUrlPrefix", "http://127.0.0.1");
		initParameters.put("serverName", "http://192.26.4.28:8080");
		authenticationFilter.setInitParameters(initParameters);
		authenticationFilter.setOrder(1);
		List<String> urlPatterns = new ArrayList<String>();
		urlPatterns.add("/*");// 设置匹配的url
		authenticationFilter.setUrlPatterns(urlPatterns);
		return authenticationFilter;
	}
	
	@Bean
	public FilterRegistrationBean casHttpServletRequestWrapperFilter(){
		FilterRegistrationBean authenticationFilter = new FilterRegistrationBean();
		authenticationFilter.setFilter(new HttpServletRequestWrapperFilter());
		authenticationFilter.setOrder(3);
		List<String> urlPatterns = new ArrayList<String>();
		urlPatterns.add("/*");// 设置匹配的url
		authenticationFilter.setUrlPatterns(urlPatterns);
		return authenticationFilter;
	}
	
	@Bean
	public FilterRegistrationBean casAssertionThreadLocalFilter(){
		FilterRegistrationBean authenticationFilter = new FilterRegistrationBean();
		authenticationFilter.setFilter(new AssertionThreadLocalFilter());
		authenticationFilter.setOrder(4);
		List<String> urlPatterns = new ArrayList<String>();
		urlPatterns.add("/*");// 设置匹配的url
		authenticationFilter.setUrlPatterns(urlPatterns);
		return authenticationFilter;
	}
}

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