Example of accessing redis from a Java client (Getting Started)

This document describes how to install redis and access redis from Java.

Download the files required for this article from http://download.csdn.net/detail/kkdelta/4034137.

1. Install the redis service on Linux.

The base Dir of the following operation is/root/4 setup

Tar xzf redis-2.4.6.tar

CD redis-2.4.6

Make

Start after installation

Nohup src/redis-Server &
Below are detailed steps to copy from the http://tech.it168.com/a2011/0830/1239/000001239923.shtml

Step 1: Download The redis http://download.csdn.net/detail/kkdelta/4034137

Step 2: Compile the source program

[Root @ localhost 4 setup] # ll total 29168-RW-r -- 1 root root455240 2011-07-22 redis-2.2.12.tar.gz [root @ localhost 4 setup] # tar xzf redis-2.2.12.tar.gz [root @ localhost 4 setup] # cd redis-2.2.12 [root @ localhost redis-2.2.12] # Make cd src & make all make [1]: entering directory '/root/4 Setup/redis-2.2.12/src'

Step 3: Start the redis Service

　　src/redis-server　　[root@localhost redis-2.2.12]# src/redis-server　　[6246] 05 Aug 19:17:22 # Warning: no config file specified, using the default config. In order to specify a config file use'redis-server /path/to/redis.conf'　　[6246] 05 Aug 19:17:22* Server started, Redis version2.2.12　　[6246] 05 Aug 19:17:22 # WARNING overcommit_memory isset to 0! Background save may fail under low memory condition.To fix this issue add'vm.overcommit_memory = 1' to /etc/sysctl.conf and then reboot or run the command 'sysctl vm.overcommit_memory=1' for this to take effect.　　[6246] 05 Aug 19:17:22* The serveris now readyto accept connectionson port 6379　　[6246] 05 Aug 19:17:22- 0 clients connected (0 slaves),539544 bytes in use

The default connection port of the redis server is 6379.

Step 4: randomly start redis as a Linux Service

VI/etc/rc. Local, use the VI editor to open the random STARTUP configuration file, and add the following line of code.

/root/4setup/redis-2.2.12/src/redis-server

Step 5: Verify the Client Connection

Open a new session and enter src/redis-cli. If the following prompt appears, you can start your redis journey.

[root@localhost redis-2.2.12]# src/redis-cliredis 127.0.0.1:6379>

Step 6: View redis logs

View the server session to view or analyze the redis running status.

[6246]05 Aug 19:24:33- 0 clients connected (0 slaves),539544 bytes in use[6246] 05 Aug 19:24:37- Accepted 127.0.0.1:51381[6246] 05 Aug 19:24:38- 1 clients connected (0 slaves),547372 bytes in use

The above steps are OK !! Such a simple redis database can run smoothly.

Step 7: Stop a redis instance

The simplest way is to stop an instance directly using control-C in the session of the instance.

We can also use a client to stop the service. For example, we can use shutdown to stop redis instances, as shown below:

[Root @ localhost redis-2.2.12] # src/redis-cli
Shutdown2,

2. Develop the client Java program:

Create a javaproject in eclipse and import the jar package above.

The following is a simple sample code:

    public static void main(String[] args) {        Jedis jedis = new Jedis("147.151.240.234",6379);        jedis.set("foo", "bar");        String value = jedis.get("foo");        System.out.println(value);    }

Link to an introduction http://cardyn.iteye.com/blog/794194 for installing redis on Windows