Redis 安装与使用

redis安装指南:

特点: 最主要特点是 操作是原子性的;
使用: 用来作为队列使用, 用来共享session, 用来作为聊天存储, 用来作为预存储;

1. 下载 http://www.redis.cn/documentation.html

2.
mv redis-4.0.11.tar.gz /usr/local/
tar -zxvf redis-4.0.11.tar.gz
cd redis-4.0.11/

make

cd src
make install

编译完成后，在Src目录下，有四个可执行文件redis-server、redis-benchmark、redis-cli和redis.conf将其拷贝到一个目录下。

mkdir -p /usr/local/redis
cp /usr/local/redis-4.0.11/src/redis-server /usr/local/redis
cp /usr/local/redis-4.0.11/src/redis-cli /usr/local/redis
cp /usr/local/redis-4.0.11/redis.conf /usr/local/redis
cd /usr/local/redis

3.
vim redis.conf
在bind 127.0.0.1前加“#”将其注释掉
默认为保护模式，把 protected-mode yes 改为 protected-mode no
默认为不守护进程模式，把daemonize no 改为daemonize yes
将 requirepass foobared前的“#”去掉，密码改为你想要设置的密码（我为了练习用，设置为123456）
requirepass 111111

设置开机启动
vim /etc/init.d/redis

#!/bin/sh
# chkconfig: 2345 80 90
# description: Start and Stop redis
#PATH=/usr/local/bin:/sbin:/usr/bin:/bin
REDISPORT=6379
EXEC=/usr/local/redis/redis-server
REDIS_CLI=/usr/local/redis/redis-cli
PIDFILE=/var/run/redis_6379.pid
CONF="/usr/local/redis/redis.conf"
AUTH="111111"

case "$1" in
   start)
       if [ -f $PIDFILE ]
       then
               echo "$PIDFILE exists, process is already running or crashed"
       else
               echo "Starting Redis server..."
               $EXEC $CONF
       fi
       if [ "$?"="0" ]
       then
             echo "Redis is running..."
       fi
       ;;
   stop)
       if [ ! -f $PIDFILE ]
       then
               echo "$PIDFILE does not exist, process is not running"
       else
               PID=$(cat $PIDFILE)
               echo "Stopping ..."
               $REDIS_CLI -p $REDISPORT SHUTDOWN
               while [ -x ${PIDFILE} ]
              do
                   echo "Waiting for Redis to shutdown ..."
                   sleep 1
               done
               echo "Redis stopped"
       fi
       ;;
  restart|force-reload)
       ${0} stop
       ${0} start
       ;;
 *)
   echo "Usage: /etc/init.d/redis {start|stop|restart|force-reload}" >&2
       exit 1
esac

vim /etc/rc.local
加入service redis start
chmod 755 /etc/init.d/redis
chkconfig --add redis

4. 测试
service redis start
ps -ef|grep redis
ln -s /usr/local/redis/redis-cli /usr/bin/redis

5. 启动
/usr/local/redis/redis-server /usr/local/redis/redis.conf
redis

一般读取方法需要添加@Cacheable，而删除需要使用@CacheEvict，添加和修改使用@CachePut

@CachePut 必须有返回值， 返回值的类型必须与@Cacheable 相同;

使用:
0. 在propertise中增加redis配置

1. 在Application上
@EnableCaching

2. 新建redisConfig类

3. 在Service中
@Cacheable(value = Array("getResponseById"), key = "#id") //建立缓存
@CachePut(value = Array("getResponseById"), key = "#map_.get("id").toString()") //更新缓存
@CacheEvict(value = Array("getResponseById"), key = "#id") //清理缓存

redisTemplate.opsForValue().set("1","2")
redisTemplate.opsForValue().get("1").toString