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java遍历读取整个redis数据库实例

redis提供了灵活的数据查询方式,最牛的就是key的搜索支持正则表达式。

jedis.keys(“*”);表示搜索所有keyjedis.keys(“abc*”)表示搜索开头为abc的key数据

遍历了key就能遍历到value。

其实就是一个set

代码如下:
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();

rd的算法为集成redis 运算

代码如下:
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 }}

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