一個 key ，五大數據類型
package test;import java.util.HashMap;import java.util.Iterator;import java.util.List;import java.util.Map;import java.util.Set;import redis.clients.jedis.Jedis;public class TestAPI { public static void main(String[] args) { Jedis jedis = new Jedis("127.0.0.1", 6379); //key Set<String> sets = jedis.keys("*"); for(Iterator iterator = sets.iterator();iterator.hasNext();){ String key = (String) iterator.next(); System.out.println(key); } System.out.println("jedis.exists====>"+jedis.exists("k2")); System.out.println(jedis.ttl("k1")); //String System.out.println(jedis.get("k1")); jedis.set("k4", "v4"); System.out.println("----------------------------------"); jedis.mset("str1","v1","str2","v2","str3","v3"); System.out.println(jedis.mget("str1","str2","str3")); //list System.out.println("----------------------------------"); jedis.lpush("mylist", "v1","v2","v3","v4","v5"); List<String> list = jedis.lrange("mylist", 0, -1); for(String element:list){ System.out.println(element); } //set System.out.println("----------------------------------"); jedis.sadd("orders", "jd001"); jedis.sadd("orders", "jd002"); jedis.sadd("orders", "jd003"); Set<String> set1 = jedis.smembers("orders"); for(Iterator iterator = set1.iterator();iterator.hasNext();){ String string = (String) iterator.next(); System.out.println(string); } jedis.srem("orders", "jd002"); System.out.println(jedis.smembers("orders").size()); //hash System.out.println("----------------------------------"); jedis.hset("hash1", "userName", "lisi"); System.out.println(jedis.hget("hash1", "userName")); Map<String, String> map = new HashMap<String, String>(); map.put("telphone", "13811814763"); map.put("address", "atguigu"); map.put("email", "abc@163.com"); jedis.hmset("hash2", map); List<String> result =jedis.hmget("hash2", "telphone","email"); for(String element : result){ System.out.println(element); } //zset System.out.println("----------------------------------"); jedis.zadd("zset01", 60d,"v1"); jedis.zadd("zset01", 70d,"v2"); jedis.zadd("zset01", 80d,"v3"); jedis.zadd("zset01", 90d,"v4"); Set<String> s1 = jedis.zrange("zset01", 0, -1); for(Iterator iterator = s1.iterator();iterator.hasNext();){ String string = (String) iterator.next(); System.out.println(string); } }}JedisPoolUtil.java
package test;import redis.clients.jedis.Jedis;import redis.clients.jedis.JedisPool;import redis.clients.jedis.JedisPoolConfig;public class JedisPoolUtil { private static volatile JedisPool jedisPool = null; private JedisPoolUtil(){} public static JedisPool getJedisPoolInstance(){ if(null == jedisPool){ synchronized (JedisPoolUtil.class) { if(null == jedisPool){ JedisPoolConfig poolConfig = new JedisPoolConfig(); poolConfig.setMaxTotal(1000); poolConfig.setMaxIdle(32); poolConfig.setMaxWaitMillis(100*1000); poolConfig.setTestOnBorrow(true); jedisPool = new JedisPool(poolConfig,"127.0.0.1",6379); } } } return jedisPool; } public static void release(JedisPool jedisPool,Jedis jedis){ if(null != jedis){ jedisPool.returnResourceObject(jedis); } }}TestPool.java
package test;import redis.clients.jedis.Jedis;import redis.clients.jedis.JedisPool;public class TestPool { public static void main(String[] args) { JedisPool jedisPool = JedisPoolUtil.getJedisPoolInstance(); Jedis jedis = null; try { jedis = jedisPool.getResource(); jedis.set("aa", "bb"); } catch (Exception e) { e.printStackTrace(); }finally{ JedisPoolUtil.release(jedisPool, jedis); } }}JedisPool的配置參數大部分是由JedisPoolConfig的對應項來賦值的。
maxActive：控制一個pool可分配多少個jedis實例，通過pool.getResource()來獲??；如果賦值為-1，則表示不限制；如果pool已經分配了maxActive個jedis實例，則此時pool的狀態為exhausted。maxIdle：控制一個pool最多有多少個狀態為idle(空閑)的jedis實例；whenExhaustedAction：表示當pool中的jedis實例都被allocated完時，pool要采取的操作；默認有三種。 WHEN_EXHAUSTED_FAIL –> 表示無jedis實例時，直接拋出NoSuchElementException；WHEN_EXHAUSTED_BLOCK –> 則表示阻塞住，或者達到maxWait時拋出JedisConnectionException；WHEN_EXHAUSTED_GROW –> 則表示新建一個jedis實例，也就說設置的maxActive無用；maxWait：表示當borrow一個jedis實例時，最大的等待時間，如果超過等待時間，則直接拋JedisConnectionException；testOnBorrow：獲得一個jedis實例的時候是否檢查連接可用性（ping()）；如果為true，則得到的jedis實例均是可用的；testOnReturn：return 一個jedis實例給pool時，是否檢查連接可用性（ping()）；testWhileIdle：如果為true，表示有一個idle object evitor線程對idle object進行掃描，如果validate失敗，此object會被從pool中drop掉；這一項只有在timeBetweenEvictionRunsMillis大于0時才有意義；timeBetweenEvictionRunsMillis：表示idle object evitor兩次掃描之間要sleep的毫秒數；numTestsPerEvictionRun：表示idle object evitor每次掃描的最多的對象數；minEvictableIdleTimeMillis：表示一個對象至少停留在idle狀態的最短時間，然后才能被idle object evitor掃描并驅逐；這一項只有在timeBetweenEvictionRunsMillis大于0時才有意義；softMinEvictableIdleTimeMillis：在minEvictableIdleTimeMillis基礎上，加入了至少minIdle個對象已經在pool里面了。如果為-1，evicted不會根據idle time驅逐任何對象。如果minEvictableIdleTimeMillis>0，則此項設置無意義，且只有在timeBetweenEvictionRunsMillis大于0時才有意義；lifo：borrowObject返回對象時，是采用DEFAULT_LIFO（last in first out，即類似cache的最頻繁使用隊列），如果為False，則表示FIFO隊列；/================================================================================================================== 其中JedisPoolConfig對一些參數的默認設置如下：
testWhileIdle=trueminEvictableIdleTimeMills=60000timeBetweenEvictionRunsMillis=30000numTestsPerEvictionRun=-1新聞熱點
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