在Spring中有一个类CachingUserDetailsService实现了UserDetailsService接口，该类使用静态代理模式为UserDetailsService提供缓存功能。该类源码如下：
CachingUserDetailsService.java
public class CachingUserDetailsService implements UserDetailsService { private UserCache userCache = new NullUserCache(); private final UserDetailsService delegate; CachingUserDetailsService(UserDetailsService delegate) { this.delegate = delegate; } public UserCache getUserCache() { return this.userCache; } public void setUserCache(UserCache userCache) { this.userCache = userCache; } public UserDetails loadUserByUsername(String username) { UserDetails user = this.userCache.getUserFromCache(username); if (user == null) { user = this.delegate.loadUserByUsername(username); } Assert.notNull(user, "UserDetailsService " + this.delegate + " returned null for username " + username + ". This is an interface contract violation"); this.userCache.putUserInCache(user); return user; }}
CachingUserDetailsService默认的userCache属性值为new NullUserCache()，该对象并未实现缓存。因为我打算使用EhCache来缓存UserDetails，所以需要使用Spring的EhCacheBasedUserCache类，该类是UserCache接口的实现类，主要是缓存操作。
缓存UserDetails到Ehcache的具体实现如下：
ehcache.xml
<?xml version="1.0" encoding="UTF-8"?><ehcache xmlns:xsi="http:///jeesun/oauthserver
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。
最新文章
热门文章
猜你喜欢
