CAS 5.3.1系列之客户端对接（五）

￡神魔★判官ぃ 2021-08-28 22:09 447阅读 1赞

我们要接入客户端可以常用第三方的库cas-client-autoconfig-support来对接，比较快捷，迅速实现，或者可以用cas-client-support-springboot集成到boot项目

pom配置：

<dependency>
                <groupId>net.unicon.cas</groupId>
                <artifactId>cas-client-autoconfig-support</artifactId>
                <version>1.5.0-GA</version>
            </dependency>

application.yml配置：

cas:
      server-login-url: http://127.0.0.1:8080/cas/login
      server-url-prefix: http://127.0.0.1:8080/cas
      client-host-url: http://127.0.0.1:8082

可以自定义一个重定向策略类，这里还是和默认的策略一样，可以根据项目需要自行更改

package org.muses.jeeplatform.oa.cas;
    
    import org.jasig.cas.client.authentication.AuthenticationRedirectStrategy;
    
    import javax.servlet.http.HttpServletRequest;
    import javax.servlet.http.HttpServletResponse;
    import java.io.IOException;
    
    public class CustomAuthticationRedirectStrategy implements AuthenticationRedirectStrategy { 
    
        @Override
        public void redirect(HttpServletRequest request, HttpServletResponse response, String potentialRedirectUrl) throws IOException { 
    // response.setCharacterEncoding("utf-8");
    // response.setContentType("application/json; charset=utf-8");
    // PrintWriter out = response.getWriter();
    // out.write("401");
            //response重定向
            response.sendRedirect(potentialRedirectUrl);
        }
    }

然后通过配置类，实现CasClientConfigurerAdapter类，记得配置类要加上@EnableCasClient注解，开启CAS支持：

package org.muses.jeeplatform.oa.config;
    
    import net.unicon.cas.client.configuration.CasClientConfigurerAdapter;
    import net.unicon.cas.client.configuration.EnableCasClient;
    import org.jasig.cas.client.authentication.AuthenticationFilter;
    import org.springframework.boot.web.servlet.FilterRegistrationBean;
    import org.springframework.context.annotation.Bean;
    import org.springframework.context.annotation.Configuration;
    
    import java.util.HashMap;
    import java.util.Map;
    
    /** * <pre> * CAS配置类 * </pre> * * @author nicky * <pre> * 修改记录 * 修改后版本: 修改人： 修改日期: 2020年04月11日 修改内容: * </pre> */
    @Configuration
    @EnableCasClient
    public class CASConfig extends CasClientConfigurerAdapter { 
    
    
        private static final String CAS_SERVER_URL_LOGIN = "http://127.0.0.1:8080/cas/login";
        private static final String SERVER_NAME = "http://127.0.0.1:8082/";
    
        private static final String AUTHENTICATION_REDIRECT_STRATEGY_CLASS  = "org.muses.jeeplatform.oa.cas.CustomAuthticationRedirectStrategy";
    
        @Override
        public void configureAuthenticationFilter(FilterRegistrationBean authenticationFilter) { 
            super.configureAuthenticationFilter(authenticationFilter);
            authenticationFilter.getInitParameters().put("authenticationRedirectStrategyClass",AUTHENTICATION_REDIRECT_STRATEGY_CLASS);
        }
    
        @Override
        public void configureValidationFilter(FilterRegistrationBean validationFilter) { 
            Map<String, String> initParameters = validationFilter.getInitParameters();
            initParameters.put("encodeServiceUrl", "false");
        }
    
        @Bean
        public FilterRegistrationBean filterRegistrationBean(){ 
            FilterRegistrationBean registrationBean = new FilterRegistrationBean();
            registrationBean.setFilter(new AuthenticationFilter());
            registrationBean.addUrlPatterns("/*");
            Map<String, String> initParameters = new HashMap<String,String>(4);
            initParameters.put("casServerLoginUrl",CAS_SERVER_URL_LOGIN);
            initParameters.put("serverName",SERVER_NAME);
            initParameters.put("ignorePattern","/logoutSuccess/*");
            // 自定义重定向策略
            initParameters.put("authenticationRedirectStrategyClass", AUTHENTICATION_REDIRECT_STRATEGY_CLASS);
            registrationBean.setInitParameters(initParameters);
            registrationBean.setOrder(1);
            return registrationBean;
        }
    
    
    }

访问项目时候，如果没登录过，会跳到CAS进行认证授权，授权通过才会返回主页  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTQ0MjczOTE_size_16_color_FFFFFF_t_70]

代码例子参考：[github下载链接][github]

详情可以参考官方文档：https://apereo.github.io/cas/5.3.x/installation/Configuration-Properties.html

优质参考博客：  
https://www.cnblogs.com/jpeanut/tag/CAS/  
https://blog.csdn.net/anumbrella/category\_7765386.html

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[github]: https://github.com/u014427391/springbootexamples/tree/master/springboot-sso-cas