真特征融合

内部类 RedisSession

接口ExpiringSession

+ getCreationTime- setLastAccessedTime- getLastAccessedTime-setMaxInactiveIntervalInSeconds-getMaxInactiveIntervalInSeconds-isExpired

类RedisHttpSessionConfiguration

+ Integer maxInactiveIntervalInSeconds = 18000+ RedisSerializer defaultRedisSerializer;

+ RedisMessageListenerContainer redisMessageListenerContainer- 注入bean:sessionRedisTemplate- 注入bean:RedisOperationsSessionRepository sessionRepository-注入：springSessionDefaultRedisSerializer，springSessionRedisTaskExecutor，springSessionRedisSubscriptionExecutor

类 CookieHttpSessionStrategy

+ CookieSerializer cookieSerializer = new DefaultCookieSerializer();+String deserializationDelimiter = DEFAULT_DELIMITER;- String serializationDelimiter = DEFAULT_DELIMITER;

类DefaultCookieSerializer

+ String cookieName = \"SESSION\";+ Boolean useSecureCookie;- boolean useHttpOnlyCookie = isServlet3();- String cookiePath;- int cookieMaxAge = -1;- String domainName;- Pattern domainNamePattern;- String jvmRoute;-boolean useBase64Encoding;- String rememberMeRequestAttribute;

+ List readCookieValues(HttpServletRequest request)- writeCookieValue(CookieValue cookieValue) - String base64Decode(String base64Value)- String base64Encode(String value)- getter and setter;

final类 MapSession

+ T getAttribute(String attributeName)- Set getAttributeNames()- void setAttribute；-removeAttribute（）；

类RedisOperationsSessionRepository

+ Integer defaultMaxInactiveInterval; // 如果不为空，覆盖默认值30分钟；+ String keyPrefix = \"spring:session:\"// redis key的前缀+ final RedisSerializer defaultSerializer = new JdkSerializationRedisSerializer();- final RedisSessionExpirationPolicy expirationPolicy;

+ void cleanupExpiredSessions();// @Scheduled(cron = \"${spring.session.cleanup.cron.expression:0 * * * * *}\

抽象类 OncePerRequestFilter

+String alreadyFilteredAttributeName

+ doFilter() // 判断request是否已经过滤，没则添加过滤标识执行doFilterInternal()方法。- doFilterInternal()// 抽象方法

类SpringHttpSessionConfiguration

+ HttpSessionStrategy httpSessionStrategy = new CookieHttpSessionStrategy();+ boolean usesSpringSessionRememberMeServices；-CookieSerializer cookieSerializer；-List httpSessionListeners ；

+ init(); // 初始化CookieSerializer- 注入bean:SessionRepositoryFilter springSessionRepositoryFilter;- 注入bean：SessionEventHttpSessionListenerAdapter sessionEventHttpSessionListenerAdapter;

类RedisSessionExpirationPolicy // 处理失效session类

+ onDelete- onExpirationUpdated- getExpirationKey- getSessionKey- cleanExpiredSessions

类SessionRepositoryFilter

+ final SessionRepository sessionRepository;+ MultiHttpSessionStrategy httpSessionStrategy = new CookieHttpSessionStrategy()

+ doFilterInternal() // 将request和response进行包装，向request中添加session，最后commitSession()提交session；- private void commitSession();// 获取从redis中session，保存session到redis