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shiro only provide the support of ehcache and concurrentHashMap. Here is an implement of redis cache can be used by shiro. Hope it will help you!

The newest version!

package org.crazycake.shiro;

import org.crazycake.shiro.common.WorkAloneRedisManager;
import redis.clients.jedis.Jedis;
import redis.clients.jedis.JedisPool;
import redis.clients.jedis.Protocol;

public class RedisManager extends WorkAloneRedisManager implements IRedisManager {

	private static final String DEFAULT_HOST = "127.0.0.1:6379";
	private String host = DEFAULT_HOST;

	// timeout for jedis try to connect to redis server, not expire time! In milliseconds
	private int timeout = Protocol.DEFAULT_TIMEOUT;

	private String password;

	private int database = Protocol.DEFAULT_DATABASE;

	private volatile JedisPool jedisPool;

	private void init() {
		if (jedisPool == null) {
			synchronized (RedisManager.class) {
				if (jedisPool == null) {
					String[] hostAndPort = host.split(":");
					jedisPool = new JedisPool(getJedisPoolConfig(), hostAndPort[0], Integer.parseInt(hostAndPort[1]), timeout, password, database);
				}
			}
		}
	}

	@Override
	protected Jedis getJedis() {
		if (jedisPool == null) {
			init();
		}
		return jedisPool.getResource();
	}

	public String getHost() {
		return host;
	}

	public void setHost(String host) {
		this.host = host;
	}

	public int getTimeout() {
		return timeout;
	}

	public void setTimeout(int timeout) {
		this.timeout = timeout;
	}

	public String getPassword() {
		return password;
	}

	public void setPassword(String password) {
		this.password = password;
	}

	public int getDatabase() {
		return database;
	}

	public void setDatabase(int database) {
		this.database = database;
	}

	public JedisPool getJedisPool() {
		return jedisPool;
	}

	public void setJedisPool(JedisPool jedisPool) {
		this.jedisPool = jedisPool;
	}
}