qiangchen1990
qiangchen1990
采纳率33.3%
2019-05-06 17:13 阅读 1.3k

shiro session使用redis存储

场景:使用redis存储shiro的session
当根据sessionId从redis中获取session对象时应返回null

 try {
            if (null != sessionId) {
                byte[] bytes = robertRedisClient.get(redisSerializer.serialize(SHIRO_SESSION + sessionId.toString()));

                if (1 > bytes.length) {
                    return null;
                }
                return (Session) redisSerializer.deserialize(bytes);
            }
            return null;
        } catch (Exception e) {
            log.error("获取shiro的session时发生异常,异常详细信息:\n {}", ExceptionUtils.getStackTrace(e));
            return null;
        }

问题:1、后台日志上可以看到nullpointexception,可也有新session创建的日志输出

2019-05-06 16:41:46.583 [XNIO-1 task-6] ERROR- com.robert.auth.session.RedisSessionDao - 获取shiro的session时发生异常,异常详细信息:
 java.lang.NullPointerException
    at com.robert.auth.session.RedisSessionDao.doReadSession(RedisSessionDao.java:54)
    at org.apache.shiro.session.mgt.eis.AbstractSessionDAO.readSession(AbstractSessionDAO.java:168)
2019-05-06 16:41:46.583 [XNIO-1 task-6] DEBUG- com.robert.auth.session.RedisSessionDao - 新增一个session:3dfe4f26-ddb2-4b1e-9fc0-fa772cd60dd8 
2019-05-06 16:41:46.583 [XNIO-1 task-6] DEBUG- com.robert.auth.session.RedisSessionDao - 创建session的host:192.168.0.221,session主键:3dfe4f26-ddb2-4b1e-9fc0-fa772cd60dd8,最后访问时间:Mon May 06 16:41:46 CST 2019 
2019-05-06 16:41:46.584 [XNIO-1 task-6] DEBUG- com.robert.auth.redis.RobertRedisClient - 向redis中写数据:key-shiro-session:3dfe4f26-ddb2-4b1e-9fc0-fa772cd60dd8,value-...,timeout-1800 
2019-05-06 16:41:46.585 [XNIO-1 task-6] DEBUG- com.robert.auth.session.RedisSessionDao - 更新shiro session :3dfe4f26-ddb2-4b1e-9fc0-fa772cd60dd8 
2019-05-06 16:41:46.585 [XNIO-1 task-6] DEBUG- com.robert.auth.session.RedisSessionDao - 创建session的host:192.168.0.221,session主键:3dfe4f26-ddb2-4b1e-9fc0-fa772cd60dd8,最后访问时间:Mon May 06 16:41:46 CST 2019 
2019-05-06 16:41:46.585 [XNIO-1 task-6] DEBUG- com.robert.auth.redis.RobertRedisClient - 向redis中写数据:key-shiro-session:3dfe4f26-ddb2-4b1e-9fc0-fa772cd60dd8,value-...,timeout-1800 

2、客户端获取不到请求响应

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