ubuntu环境下安装Redis

1.命令行安装

sudo apt-get update
sudo apt-get install redis-server

2.启动redis

$redis-server

:C  Aug ::42.264 # Warning: no config file specified, using the default config. In order to specify a config file use redis-server /path/to/redis.conf
:M  Aug ::42.266 * Increased maximum number of open files to  (it was originally set to ).
                _._
           _.-``__ ''-._
      _.-``    `.  `_.  ''-._           Redis 3.0. (/)  bit
  .-`` .-```.  ```\/    _.,_ ''-._
 (    '      ,       .-`  | `,    )     Running in standalone mode
 |`-._`-...-` __...-.``-._|'` _.-'|     Port:
 |    `-._   `._    /     _.-'    |     PID: 3208
  `-._    `-._  `-./  _.-'    _.-'
 |`-._`-._    `-.__.-'    _.-'_.-'|
 |    `-._`-._        _.-'_.-'    |           http://redis.io
  `-._    `-._`-.__.-'_.-'    _.-'
 |`-._`-._    `-.__.-'    _.-'_.-'|
 |    `-._`-._        _.-'_.-'    |
  `-._    `-._`-.__.-'_.-'    _.-'
      `-._    `-.__.-'    _.-'
          `-._        _.-'
              `-.__.-'                                               

:M  Aug ::42.267 # WARNING: The TCP backlog setting of  cannot be enforced because /proc/sys/net/core/somaxconn is set to the lower value of .
:M  Aug ::42.267 # Server started, Redis version 3.0.
:M  Aug ::42.267 # WARNING overcommit_memory is set to ! 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.
:M  Aug ::42.267 # WARNING you have Transparent Huge Pages (THP) support enabled in your kernel. This will create latency and memory usage issues with Redis. To fix this issue run the command 'echo never > /sys/kernel/mm/transparent_hugepage/enabled' as root, and add it to your /etc/rc.local in order to retain the setting after a reboot. Redis must be restarted after THP is disabled.
:M  Aug ::42.267 * The server is now ready to accept connections on port 

4.启动客户端

$ redis-cli
127.0.0.1:> 

5.验证是否安装成功

127.0.0.1:> ping
PONG

6.java连接测试

public class RedisTest {
    public static void main(String[] args) {
        Jedis jedis = new Jedis("localhost");
        System.out.println("redis connect success");

        //添加String
        jedis.set("mykey1", "hahahaha");
        System.out.println("添加完成"+jedis.get("mykey1"));

        //添加list
        String[] strs = {"haha","heihei","heheh"};
        jedis.lpush("list1", strs);
        //获取list数据
        List<String> list = jedis.lrange("list1", 0, 2);
        for(String va : list) {
            System.out.println("列表list1:"+va);
        }
        showKeys(jedis);
    }
    /**
     * 显示所有key
     * @param jedis
     */
    private static void showKeys(Jedis jedis) {
        Set<String> set = jedis.keys("*");
        Iterator<String> iter = set.iterator();
        while(iter.hasNext()) {
            String key = iter.next();
            System.out.println("key:"+key);
        }
    }
}