Using Jedis to operate Redis in Java

Reprint: http://www.cnblogs.com/liuling/p/2014-4-19-04.html

Using Java to operate Redis requires Jedis-2.1.0.jar,:http://files.cnblogs.com/liuling/jedis-2.1.0.jar.zip

If you need to use a Redis connection pool, you need to Commons-pool-1.5.4.jar,:http://files.cnblogs.com/liuling/commons-pool-1.5.4.jar.zip

  1 package com.test;  2 3 Import Java.util.HashMap;  4 Import Java.util.Iterator;  5 Import Java.util.List;  6 Import Java.util.Map;  7 8 Import Org.junit.Before; 9 Import Org.junit.Test; Ten import Redis.clients.jedis.Jedis;  public class Testredis {Jedis Jedis; @Before-public void Setup () {18//Connect Redis server, 192.168.0.100:6379 Jedis = new Jedi S ("192.168.0.100", 6379);   20//Authority Authentication Jedis.auth ("admin"); /** * Redis Storage String 29 */@Test public void teststring () {//-- ---add Data----------jedis.set ("name", "Xinxin");//Put value-->xinxin SYSTEM.OUT.PR in Key-->name Intln (Jedis.get ("name"));//Execution Result: Xinxin jedis.append ("name", "Is My Lover");  Stitching System.out.println (Jedis.get ("name"));  Jedis.del ("name"); Delete a key PNs System.out.println (Jedis.get ("name")); 38//Set multiple key values to Jedis.mset ("name", "LiuLing", "Age", "Max", "QQ", "476777XXX"); JEDIS.INCR ("Age"); Add 1 operation to System.out.println (Jedis.get ("name") + "-" + jedis.get ("age") + "-" + jedis.get ("QQ");         /** * Redis Operation map */@Test * * TestMap () {50 -----Add Data----------Wuyi map<string, string> Map = new hashmap<string, string> (); Map.put ("name", "Xinxin"); Map.put ("Age", "22"); Map.put ("QQ", "123456"); Jedis.hmset ("user", map); 56//Remove name from user, execute result:[minxr]--> Note that the result is a generic list 57///The first parameter is the key to the Map object in Redis, followed by the key of the object placed in the map, followed by the Ke Y can be followed by multiple, variable-parameter list<string> Rsmap = Jedis.hmget ("User", "name", "Age", "QQ");   System.out.println (RSMAP); 60 61//Delete a key value in map Jedis.hdel ("User", "age"); System.out.println (Jedis.hmget ("User", "age"); Because it was deleted, so the returnedIs null System.out.println (Jedis.hlen ("user")); Returns the number of values stored in the key for user 2 System.out.println (jedis.exists ("user")), or the existence of a key for user's record returns true for the System.  Out.println (Jedis.hkeys ("user"));//returns all keys in the Map Object System.out.println (jedis.hvals ("user"));//returns all the value in the Map object   Iterator<string> Iter=jedis.hkeys ("user"). Iterator ();   (Iter.hasnext ()) {String key = Iter.next ();   System.out.println (key+ ":" +jedis.hmget ("User", key)); /** * Jedis Operation list */@Test-public void testlist   () {81//before starting, remove all content from the Jedis.del ("Java framework");   System.out.println (Jedis.lrange ("Java framework", 0,-1));   84//First store three data Jedis.lpush ("Java framework", "Spring") in key Java framework;   Jedis.lpush ("Java framework", "struts"); Jedis.lpush ("Java framework", "Hibernate"); 88//Remove all data jedis.lrange is out by range, 89//First is key, second is start position, third is end position, Jedis.llen gets length-1 means get all   Tem.out.println (Jedis.lrange ("Java framework", 0,-1)); Jedis.del ("Java framework");   Jedis.rpush ("Java framework", "Spring");   94 Jedis.rpush ("Java framework", "struts");  Jedis.rpush ("Java framework", "Hibernate"); System.out.println (Jedis.lrange ("Java framework", 0,-1));         98/** Jedis Operation Set 101 */102 @Test 103 public void Testset () {104  Added Jedis.sadd ("User", "liuling");  106 Jedis.sadd ("User", "xinxin");  107 Jedis.sadd ("User", "Ling");  108 Jedis.sadd ("User", "zhangxinxin"); 109 jedis.sadd ("user", "who");  110//Removal of Noname 111 Jedis.srem ("user", "who"); System.out.println (jedis.smembers ("user"));//Get all the added value 113 System.out.println (Jedis.sismember ("Use R "," Who "));//Determine if who is the element of user collection System.out.println (jedis.srandmember ("user")); System.out.println (Jedis.scard ("user"));//Returns the number of elements in the collection of 117 118 @Test 119 public void Test ( ) throws Interruptedexception {//jedis Sort 121//note that the Rpush and Lpush here are the operations of the list.  is a doubly linked list (but from the performance point of view) 122 Jedis.del ("a"),///First clear the data, then add data to test 123 Jedis.rpush ("A", "1");  124 Jedis.lpush ("A", "6");  Jedis.lpush ("A", "3");  126 Jedis.lpush ("A", "9"); 127 System.out.println (Jedis.lrange ("a", 0,-1));//[9, 3, 6, 1] (System.out.println ("a"));  [1, 3, 6, 9]//input sorted results 129 System.out.println (Jedis.lrange ("a", 0,-1)); 131 @Test133 public void Testredispool () {134 Redisutil.getjedis (). Set ("NewName", "Chinese test "); 135 System.out.println (Redisutil.getjedis (). Get (" NewName ")); 136}137}

Redis Connection Pool:

 1 package com.test; 2 3 Import Redis.clients.jedis.Jedis; 4 Import Redis.clients.jedis.JedisPool; 5 Import Redis.clients.jedis.JedisPoolConfig;      6 7 Public final class Redisutil {8 9//redis server IP10 private static String ADDR = "192.168.0.100"; 11 12     Redis port number private static int port = 6379;14 15//access password + private static String AUTH = "admin"; 17 18//The maximum number of available connection instances, the default value is 8;19//If the assignment is 1, it is unrestricted, and if the pool is already assigned a maxactive Jedis instance, the state of the pool is exhausted (exhausted) at this time. The private static int max_active = 1024;21 22//controls the maximum number of instances of a pool with an idle (idle) Jedis instance, and the default value is 8. Full private static int max_idle = 200;24 25//The maximum time to wait for an available connection, in milliseconds, the default value is-1, which means never time out.  If the wait time is exceeded, the direct throw jedisconnectionexception;26 private static int max_wait = 10000;27-private static int TIMEOUT = 10000;29 30//When borrow an Jedis instance, the validate operation is performed in advance, and if true, the resulting Jedis instance is available; private static Boolean test_on _borrow = true;32 private static Jedispool Jedispool = NuLL;34 35/**36 * Initializing the Redis connection pool PNs */38 Static {# try {jedispoolconfig config =             New Jedispoolconfig (); config.setmaxactive (max_active); Config.setmaxidle (Max_idle); 43 Config.setmaxwait (max_wait); Config.settestonborrow (test_on_borrow); jedispool = new Jedi SPool (config, ADDR, PORT, TIMEOUT, AUTH), and a catch (Exception e) {e.printstacktrace (); 48} 49}50 51/**52 * Get Jedis instance * @return54 */55 public synchronized static Jedis Getjedis ()                 {Jedispool = null) {Jedis resource = Jedispool.getresource (); 59 Return resource;60} else {null;62}63} catch (Exc Eption e) {e.printstacktrace (), null;66 return}67}68 69/**70 * Release Jedis Resources * @paramJEDIS72 */73 public static void Returnresource (final Jedis Jedis) {if (Jedis! = null) {75 Jedispool.returnresource (Jedis); 76}77}78}

Using Jedis to operate Redis in Java