import org.apache.shiro.session.mgt.eis.SessionIdGenerator; //导入依赖的package包/类
@Bean
@ConditionalOnMissingBean
public SessionDAO sessionDAO(CacheManager cacheManager) {
    EnterpriseCacheSessionDAO dao = new EnterpriseCacheSessionDAO();
    dao.setActiveSessionsCacheName(shiroSessionProperties.getActiveSessionsCacheName());
    Class<? extends SessionIdGenerator> idGenerator = shiroSessionProperties.getIdGenerator();
    if (idGenerator != null) {
        SessionIdGenerator sessionIdGenerator = BeanUtils.instantiate(idGenerator);
        dao.setSessionIdGenerator(sessionIdGenerator);
    }
    dao.setCacheManager(cacheManager);

    return dao;
}
 

import org.apache.shiro.session.mgt.eis.SessionIdGenerator; //导入依赖的package包/类
@Bean(name="sessionIdGenerator")
public SessionIdGenerator sessionIdGenerator(){
    return new JavaUuidSessionIdGenerator();
}
 

import org.apache.shiro.session.mgt.eis.SessionIdGenerator; //导入依赖的package包/类
public Class<? extends SessionIdGenerator> getIdGenerator() {
    return idGenerator;
}
 

import org.apache.shiro.session.mgt.eis.SessionIdGenerator; //导入依赖的package包/类
public void setIdGenerator(Class<? extends SessionIdGenerator> idGenerator) {
    this.idGenerator = idGenerator;
}