Simple use of Redis-based memory databases

Customers using in-memory data in ecplise , if ready to download two jar Packages

Commons-pool2-2.0.jar

Jedis-2.4.2.jar

The premise is ready, so let's start the Redis service , Open a command window and enter the following command:redis-server or Redis-server redis root mesh \redis.conf

The server is turned on, note that the port number is 6377.

2. Create a project in Eclipse , import the package that redist needs into the project

3. write a Jedis Tool class

Public class Jedisutil {

Private  Static            String HOST="127.0.0.1"; //Native address

Private  Static                   Integer PORT= 6379; //Service Port

Private  Static              Jedispoolconfig config; //Connection pool Configuration object

Private  Static                     Jedispool Pool; //Connection pool object

Static {

config = new jedispoolconfig ();

config. Setmaxidle (1024*10); //Set memory size

Pool = new jedispool (config,HOST);

}

/**

*

 *  @return get a Jedis object from the connection pool

*/

Public  Static Jedis Getpooljedis () {

return pool. getresource ();

}

/**

* Jedis objects are manually played back into the connection pool

*/

Public Static void Returnpooljedis (Jedis Jedis) {

pool. Returnresource (Jedis);

}

/**

 *  @return Create a Jedis connection directly

*/

Public Static Jedis Getjedis () {

return New Jedis (HOST, PORT);

}

}

4. Write a client class operation Jedis

Public class Client {

Public Static void Main (string[] args) {

Simpleset ();

MSet ();

}

Private Static void MSet () {

Note If you use Jedisutil.getjedis (); is to create a Jredis object directly, so it is not managed by the connection pool, so it cannot be played back into the connection pool.

Jedis Jedis = Jedisutil.getpooljedis ();

Setting values for multiple values

Jedis.mset ("UserName","user1","pwd","123");

Take value

list<string> list = Jedis.mget ("UserName","pwd");

for (String string:list) {

System. out. println (string);

}

Jedis.flushdb ();

Jedisutil.returnpooljedis (Jedis);

}

Private Static void Simpleset () {

Jedis Jedis = Jedisutil.getpooljedis ();

Setting the value

Jedis.set ("UserName", "user1");

Take value

System. out. println ("userName:"+jedis.get ("userName"));

Emptying the in-memory database

Jedis.flushdb ();

Jedisutil.returnpooljedis (Jedis);

}

}

Data can now be evaluated on the redist client

Open a Command window, enter the command redis-cli Open the client , after the original assignment