1.简介
在CAS系统中，主要分为三部分，User、Web应用、SSO认证中心。
User就是我们普通用户，Web应用就是需要接入SSO认证中心的应用也就是这里的Service，而SSO认证中心就是CAS服务端。
简单来说就是CAS分为服务端和客户端，而Service就是指具体的多个客户端（CAS Clients）。
我们整合客户端的时候,需要在cas服务端注册,使用的是json文件的方式。不是很方便，这里我们提供接口，动态操作。
2.引入依赖
修改pom.xml，如下：
<dependency><groupId>org.apereo.cas</groupId><artifactId>cas-server-support-jpa-service-registry</artifactId><version>${cas.version}</version>
</dependency>
<dependency><groupId>org.apereo.cas</groupId><artifactId>cas-server-core-services-api</artifactId><version>${cas.version}</version>
</dependency>
<dependency><groupId>org.apereo.cas</groupId><artifactId>cas-server-core-authentication-attributes</artifactId><version>${cas.version}</version>
</dependency>
<dependency><groupId>org.apereo.cas</groupId><artifactId>cas-server-support-jdbc</artifactId><version>${cas.version}</version>
</dependency>
<dependency><groupId>org.apereo.cas</groupId><artifactId>cas-server-support-jdbc-drivers</artifactId><version>${cas.version}</version>
</dependency>
<dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><version>5.1.36</version>
</dependency>
排除war包自带的两个json，添加节点：dependentWarExcludes
<plugin><groupId>org.apache.maven.plugins</groupId><artifactId>maven-war-plugin</artifactId><version>2.6</version><configuration><warName>cas</warName><failOnMissingWebXml>false</failOnMissingWebXml><recompressZippedFiles>false</recompressZippedFiles><archive><compress>false</compress><manifestFile>${manifestFileToUse}</manifestFile></archive><overlays><overlay><groupId>org.apereo.cas</groupId><artifactId>cas-server-webapp${app.server}</artifactId></overlay></overlays><dependentWarExcludes>**/services/*.json</dependentWarExcludes></configuration>
</plugin>
3.application.properties添加以下属性
第一次启动使用create-drop，二次运行时改为update
## # Jpa配置 # cas.serviceRegistry.jpa.user=root cas.serviceRegistry.jpa.password=123456 cas.serviceRegistry.jpa.driverClass=com.mysql.jdbc.Driver cas.serviceRegistry.jpa.url=jdbc:mysql://127.0.0.1:3306/cas?useUnicode=true&characterEncoding=UTF-8&autoReconnect=true&useSSL=false cas.serviceRegistry.jpa.dialect=org.hibernate.dialect.MySQL5Dialect #连接池配置 cas.serviceRegistry.jpa.pool.suspension=false cas.serviceRegistry.jpa.pool.minSize=6 cas.serviceRegistry.jpa.pool.maxSize=18 cas.serviceRegistry.jpa.pool.maxWait=2000 cas.serviceRegistry.jpa.pool.timeoutMillis=1000 #设置配置的服务，一直都有，不会给清除掉，第一次使用，需要配置为 create-drop #create-drop 重启cas服务的时候，就会给干掉 #create 没有表就创建，有就不创建 #none 一直都有 #update 更新 cas.serviceRegistry.jpa.ddlAuto=create-drop
4.添加rest接口
其实主要是使用ServiceManager中的接口，包名：org.apereo.cas.services.ServicesManager
public interface ServicesManager {RegisteredService save(RegisteredService registeredService);RegisteredService save(RegisteredService registeredService, boolean publishEvent);void deleteAll();RegisteredService delete(long id);RegisteredService delete(RegisteredService svc);RegisteredService findServiceBy(String serviceId);RegisteredService findServiceBy(Service service);Collection<RegisteredService> findServiceBy(Predicate<RegisteredService> clazz);<T extends RegisteredService> T findServiceBy(Service serviceId, Class<T> clazz);<T extends RegisteredService> T findServiceBy(String serviceId, Class<T> clazz);RegisteredService findServiceBy(long id);Collection<RegisteredService> getAllServices();boolean matchesExistingService(Service service);boolean matchesExistingService(String service);Collection<RegisteredService> load();default int count() {return 0;}default Collection<RegisteredService> getServicesForDomain(String domain) {return this.getAllServices();}default Collection<String> getDomains() {return (Collection)Stream.of("default").collect(Collectors.toList());}
}
接口的具体实现类：
import com.fdzang.cas.service.domain.ServiceDO;
import com.fdzang.cas.service.framework.ApiResult;
import com.fdzang.cas.service.framework.BaseController;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.collections4.CollectionUtils;
import org.apache.commons.lang3.StringUtils;
import org.apereo.cas.services.RegexRegisteredService;
import org.apereo.cas.services.RegisteredService;
import org.apereo.cas.services.ReturnAllAttributeReleasePolicy;
import org.apereo.cas.services.ServicesManager;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.web.bind.annotation.*;import java.net.URL;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;@Slf4j
@RestController
@RequestMapping("/service")
public class ServiceController extends BaseController {@Autowired@Qualifier("servicesManager")private ServicesManager servicesManager;@PostMappingpublic ApiResult addService(@RequestBody ServiceDO service) throws Exception {RegisteredService registeredService = findByServiceId(service.getServiceId());if (registeredService != null) {return fail("serviceId:" + service.getServiceId() + " 已存在");}RegexRegisteredService regexRegisteredService = covertService(service);servicesManager.save(regexRegisteredService, true);servicesManager.load();registeredService = findByServiceId(service.getServiceId());return ok(covertRegisteredService(registeredService));}@DeleteMappingpublic ApiResult delService(@RequestParam("serviceId") String serviceId) {boolean flag = false;RegisteredService registeredService = findByServiceId(serviceId);if (registeredService != null) {try {servicesManager.delete(registeredService);} catch (Exception e) {//这里会报审计错误，直接进行捕获即可，不影响删除逻辑log.error(e.getMessage());}if (null == findByServiceId(serviceId)) {servicesManager.load();flag = true;}}else{return fail("serviceId:" + serviceId + " 不存在");}if (flag){return ok("删除成功");}else{return fail("删除失败");}}@GetMapping("/all")public ApiResult getAllService() {Collection<RegisteredService> allServices = servicesManager.getAllServices();return ok(covertRegisteredServiceList(allServices));}@GetMappingpublic ApiResult getByServiceId(@RequestParam("serviceId") String serviceId) {RegisteredService service = findByServiceId(serviceId);return ok(covertRegisteredService(service));}private ServiceDO covertRegisteredService(RegisteredService registeredService) {ServiceDO service = new ServiceDO();service.setServiceId(registeredService.getServiceId());service.setDescription(registeredService.getDescription());service.setEvaluationOrder(registeredService.getEvaluationOrder());service.setId(registeredService.getId());service.setName(registeredService.getName());service.setTheme(registeredService.getTheme());return service;}private List<ServiceDO> covertRegisteredServiceList(Collection<RegisteredService> registeredServices) {if (CollectionUtils.isEmpty(registeredServices)) {return null;}List<ServiceDO> services = new ArrayList<>();for (RegisteredService registeredService : registeredServices) {services.add(covertRegisteredService(registeredService));}return services;}private RegexRegisteredService covertService(ServiceDO service) throws Exception {RegexRegisteredService regexRegisteredService = new RegexRegisteredService();String serviceId = "^(https|imaps|http)://" + service.getServiceId() + ".*";ReturnAllAttributeReleasePolicy returnAllAttributeReleasePolicy = new ReturnAllAttributeReleasePolicy();regexRegisteredService.setServiceId(serviceId);regexRegisteredService.setId(service.getId());regexRegisteredService.setDescription(service.getDescription());regexRegisteredService.setEvaluationOrder(service.getEvaluationOrder());if (StringUtils.isNotBlank(service.getTheme())) {regexRegisteredService.setTheme(service.getTheme());}regexRegisteredService.setAttributeReleasePolicy(returnAllAttributeReleasePolicy);regexRegisteredService.setName(service.getName());regexRegisteredService.setLogoutUrl(new URL("http://" + service.getServiceId()));return regexRegisteredService;}public RegisteredService findByServiceId(String serviceId){RegisteredService service = null;serviceId = "http://" + serviceId;try {service = servicesManager.findServiceBy(serviceId);} catch (Exception e) {log.error(e.getMessage());}return service;}
}
这个地方，我自定义了ServiceDO用来数据的接收及展示。
自定义了ApiResult，统一返回结果。
5.添加包扫描配置
cas项目，其实也是集成的Springboot，这里我们自定义注解完成包扫描工作，后续新的类加进来，无需再修改spring.factories
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;@Configuration
@ComponentScan("com.fdzang.cas")
public class SpringConfig {
}
修改spring.factories，加入我们的包扫描配置。
org.springframework.boot.autoconfigure.EnableAutoConfiguration=\org.apereo.cas.config.CasEmbeddedContainerTomcatConfiguration,\org.apereo.cas.config.CasEmbeddedContainerTomcatFiltersConfiguration,\com.fdzang.cas.service.config.SpringConfig
参考：https://blog.csdn.net/qq_34021712/article/details/81638090
