RedisDO rd = new RedisDO();   rd.open();   Set s = rd.jedis.keys("*");   Iterator it = s.iterator();     while (it.hasNext()) {    String key = (String) it.next();    String value = rd.jedis.get(key);    System.out.println(key + value);   }   rd.close();

package com.javaer.click.way; import redis.clients.jedis.Jedis; import redis.clients.jedis.JedisPool; import redis.clients.jedis.JedisPoolConfig; import redis.clients.jedis.exceptions.JedisConnectionException; public class RedisDO {  public Jedis jedis;  public void close(){   jedis.disconnect();   jedis = null;  }  public Jedis open(){   JedisPoolConfig config = new JedisPoolConfig();   config.setMaxActive(100);   config.setMaxIdle(20);   config.setMaxWait(1000l);   JedisPool pool;   pool = new JedisPool(config, "xxxxxxxx.xx.xx.xx", 6379);   boolean borrowOrOprSuccess = true;   try {    jedis = pool.getResource();    // do redis opt by instance   } catch (JedisConnectionException e) {    borrowOrOprSuccess = false;    if (jedis != null)     pool.returnBrokenResource(jedis);   } finally {    if (borrowOrOprSuccess)     pool.returnResource(jedis);   }   jedis = pool.getResource();   return jedis;  }  /**   * @param args   */  public static void main(String[] args) {   // TODO Auto-generated method stub  } }