4. Use of Redis and Java

This article mainly explains how to operate Redis in Java.

Using Java to connect Redis requires the introduction of a corresponding Jedis jar package.

Java connects to a single redis, Redis connection pool, Redis cluster (explained later)

//Connection Single Redis server   

Jedis jedis= New Jedis  ("192.168.0.100", 6379);

//Connection Redis thread Pool   

Redis Configuration Objects

Jedispoolconfig config = New jedispoolconfig ();

// maximum number of available Redis connection instances

Config.setmaxactive (8);

//maximum idle (idle) Number of Jedis instances, the default value is also 8 Config.setmaxidle (8);

//The maximum time to wait for an available connection, in units milliseconds , the default value is-1, which means that never times out. If the waiting time is exceeded, the jedisconnectionexception is thrown directly;

Config.setmaxwait (10000);

Whether validate operations are performed in advance when a Jedis instance is borrow, and if true, the resulting Jedis instances are available;

Config.settestonborrow (Test_on_borrow);

Redis Connection Pool Object

Jedispool Jedispool = New jedispool(config, "192.168.0.100", "6379", "10000");

Jedis resource = jedispool.getresource ();

Releasing Jedis Resources

Jedispool. Returnresource (Jedis) ;

The string, Hash, List, Set, Zset, respectively, are explained in turn

One, string manipulation

Second,the hash operation

4. Use of Redis and Java