import org.springframework.security.cas.authentication.CasAuthenticationProvider; //导入依赖的package包/类
void configure(AuthenticationManagerBuilder auth) throws Exception {
    CasAuthenticationProvider provider = providerBuilder.build();
    provider.setServiceProperties(serviceProperties);
    Field field = ReflectionUtils.findField(CasAuthenticationProvider.class, "ticketValidator");
    ReflectionUtils.makeAccessible(field);
    if (ReflectionUtils.getField(field, provider) == null) {
        provider.setTicketValidator(ticketValidator);
    }
    provider.afterPropertiesSet();
    auth.authenticationProvider(provider);
}
 

import org.springframework.security.cas.authentication.CasAuthenticationProvider; //导入依赖的package包/类
@Bean
public CasAuthenticationProvider casAuthenticationProvider() {
    CasAuthenticationProvider cap = new CasAuthenticationProvider();
    cap.setTicketValidator(ticketValidator());
    cap.setServiceProperties(serviceProperties());
    cap.setKey("casJbcpCalendar");
    cap.setAuthenticationUserDetailsService(userDetailsByNameServiceWrapper);

    cap.setStatelessTicketCache(ehCacheBasedTicketCache());

    return cap;
}
 

import org.springframework.security.cas.authentication.CasAuthenticationProvider; //导入依赖的package包/类
@Bean
@ConditionalOnMissingBean(CasAuthenticationProvider.class)
public CasAuthenticationProvider casAuthenticationProvider(){
	CasAuthenticationProvider casProvider = new CasAuthenticationProvider();
	casProvider.setAuthenticationUserDetailsService(new UserDetailsByNameServiceWrapper<>(userDetailsService));
	casProvider.setServiceProperties(serviceProperties());
	casProvider.setTicketValidator(new Cas20ServiceTicketValidator(bootSecurityConfig.getCas().getCasServerUrl()));
	casProvider.setKey(bootSecurityConfig.getCas().getKey());
	return casProvider;
}
 

import org.springframework.security.cas.authentication.CasAuthenticationProvider; //导入依赖的package包/类
@Bean
public CasAuthenticationProvider casAuthenticationProvider() {
	CasAuthenticationProvider authProvider = new CasAuthenticationProvider();
	authProvider.setAuthenticationUserDetailsService(casUserDetailsService());
	authProvider.setServiceProperties(casServiceProperties());
	authProvider.setTicketValidator(casTicketValidator());
	authProvider.setKey("casAuthProviderKey");

	return authProvider;
}
 

import org.springframework.security.cas.authentication.CasAuthenticationProvider; //导入依赖的package包/类
@Override
public CasAuthenticationProvider casAuthenticationProvider() {
	return null;
}