CentOS7下安装Redis — 单节点

1. 环境准备

安装编译所需要的包：

yum install gcc tcl

2. 下载redis

http://download.redis.io/releases/redis-3.2.7.tar.gz

3. 安装redis

## 创建redis的安装目录
mkdir /usr/local/redis

## 解压redis
tar -zxvf redis-3.2.7.tar

## 重命名安装目录
mv redis-3.2.7.tar /opt/redis

## 进入安装目录
cd /opt/redis

## 编译安装redis
make PREFIX=/usr/local/redis install

安装完成后，进入redis的目录下会有一个bin目录，目录中有redis的脚本：

## redis的脚本
redis-benchmark  redis-check-aof  redis-check-rdb  redis-cli  redis-sentinel  redis-server

4. 将redis启动脚本

## 拷贝redis的启动脚本到init.d目录
cp /opt/redis/utils/redis_init_script /etc/rc.d/init.d/redis

## 编辑脚本
vi /etc/rc.d/init.d/redis

需要修改这个脚本，修改后的脚本如下：

#!/bin/sh
#chkconfig: 2345 80 90
#
# Simple Redis init.d script conceived to work on Linux systems
# as it does use of the /proc filesystem.

REDISPORT=6379
EXEC=/usr/local/redis/bin/redis-server
CLIEXEC=/usr/local/redis/bin/redis-cli

PIDFILE=/var/run/redis_${REDISPORT}.pid
CONF="/usr/local/redis/conf/${REDISPORT}.conf"

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
;;
stop)
if [ ! -f $PIDFILE ]
then
echo "$PIDFILE does not exist, process is not running"
else
PID=$(cat $PIDFILE)
echo "Stopping ..."
$CLIEXEC -p $REDISPORT shutdown
while [ -x /proc/${PID} ]
do
echo "Waiting for Redis to shutdown ..."
sleep 1
done
echo "Redis stopped"
fi
;;
*)
echo "Please use start or stop as first argument"
;;
esac

5. 将redis注册为服务

## 注册redis脚本为服务
chkconfig --add redis

## 开启服务
systemctl start redis.service

## 开启启动服务
systemctl enable redis.service

6. 设置防火墙

## 开放端口
firewall-cmd --zone=public --add-port=6379/tcp --permanent

## 重启防火墙
firewall-cmd --reload

7. 修改redis的配置文件

## 创建配置文件的目录
mkdir /usr/local/redis/conf

## 服务redis配置文件到这个目录
cp /opt/redis/redis.conf /usr/local/redis/conf/6379.conf

## 编辑配置文件
vi /usr/local/redis/conf/6379.conf

将daemonize改为yes，并开放远程连接，修改bind为0.0.0.0。

8. 添加环境变量

## 编辑profile文件
vi /etc/profile

## 加入redis环境变量
#redis env
export REDIS_HOME=/usr/local/redis
export PATH=$PATH:$REDIS_HOME/bin

## 编译修改后的profile
3ff8

source /etc/profile

## 重启redis服务
systemctl restart redis.service

9. 通过redis-cli测试：

## 命令行输入
redis-cli

## 如果成功连接redis会出现
127.0.0.1:6379>

10. 使用jedis连接

下载jedis的jar包：

<!-- redis -->
<dependency>
<groupId>redis.clients</groupId>
<artifactId>jedis</artifactId>
<version>2.9.0</version>
</dependency>

编写代码连接redis：

package cn.net.bysoft.redis.test;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.junit.Test;

import redis.clients.jedis.Jedis;

public class RedisTest {

private final Log log = LogFactory.getLog(RedisTest.class);

@Test
public void test() {
String key = "hello";
Jedis jedis = new Jedis("192.168.240.132", 6379);
jedis.set(key, "world");

String str = jedis.get(key);
log.info("==>" + str);

jedis.del(key);
str = jedis.get(key);
log.info("==>" + str);

jedis.close();
}

}

运行上面的代码，成功连接的话，会输出：

2017-02-11 14:10:39,748  INFO [RedisTest.java:20] : ==>world
2017-02-11 14:10:39,753  INFO [RedisTest.java:24] : ==>null

11. 使用spring连接redis

下载jar包：

<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-pool2</artifactId>
<version>2.4.2</version>
</dependency>

连接池的配置文件：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">

<!-- Jedis链接池配置 -->

<bean id="jedisPoolConfig" class="redis.clients.jedis.JedisPoolConfig">
<property name="testWhileIdle" value="true" />
<property name="minEvictableIdleTimeMillis" value="60000" />
<property name="timeBetweenEvictionRunsMillis" value="30000" />
<property name="numTestsPerEvictionRun" value="-1" />
<property name="maxTotal" value="8" />
<property name="maxIdle" value="8" />
<property name="minIdle" value="0" />
</bean>

<bean id="shardedJedisPool" class="redis.clients.jedis.ShardedJedisPool">
<constructor-arg index="0" ref="jedisPoolConfig" />
<constructor-arg index="1">
<list>
<bean class="redis.clients.jedis.JedisShardInfo">
<constructor-arg index="0" value="192.168.240.132" />
<constructor-arg index="1" value="6379" type="int" />
</bean>
</list>
</constructor-arg>
</bean>
</beans>

spring配置文件：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context" xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.2.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.2.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd" default-autowire="byName" default-lazy-init="false">

<!-- 采用注释的方式配置bean -->
<context:annotation-config />

<!-- 配置要扫描的包 -->
<context:component-scan base-package="cn.net.bysoft.redis.test" />

<!-- proxy-target-class默认"false",更改为"ture"使用CGLib动态代理 -->
<aop:aspectj-autoproxy proxy-target-class="true" />

<import resource="spring-redis.xml" />
</beans>

测试代码：

package cn.net.bysoft.redis.test;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

import redis.clients.jedis.ShardedJedis;
import redis.clients.jedis.ShardedJedisPool;

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = { "classpath:spring/spring-context.xml" })
public class RedisSpringTest {
private static final Log log = LogFactory.getLog(RedisSpringTest.class);

@Autowired
private ShardedJedisPool shardedJedisPool;

@Test
public void test() {
ShardedJedis jedis = shardedJedisPool.getResource();

String key = "hello";
String value = "";

jedis.set(key, "world");
value = jedis.get(key);
log.info(key + "=" + value);

jedis.del(key); // 删数据
value = jedis.get(key); // 取数据
log.info(key + "=" + value);
}

}

如果成功连接，会输出：

2017-02-11 14:19:56,776  INFO [AbstractTestContextBootstrapper.java:258] : Loaded default TestExecutionListener class names from location [META-INF/spring.factories]: [org.springframework.test.context.web.ServletTestExecutionListener, org.springframework.test.context.support.DirtiesContextBeforeModesTestExecutionListener, org.springframework.test.context.support.DependencyInjectionTestExecutionListener, org.springframework.test.context.support.DirtiesContextTestExecutionListener, org.springframework.test.context.transaction.TransactionalTestExecutionListener, org.springframework.test.context.jdbc.SqlScriptsTestExecutionListener]
2017-02-11 14:19:56,793  INFO [AbstractTestContextBootstrapper.java:207] : Could not instantiate TestExecutionListener [org.springframework.test.context.web.ServletTestExecutionListener]. Specify custom listener classes or make the default listener classes (and their required dependencies) available. Offending class: [javax/servlet/ServletContext]
2017-02-11 14:19:56,796  INFO [AbstractTestContextBootstrapper.java:185] : Using TestExecutionListeners: [org.springframework.test.context.support.DirtiesContextBeforeModesTestExecutionListener@7ca48474, org.springframework.test.context.support.DependencyInjectionTestExecutionListener@337d0578, org.springframework.test.context.support.DirtiesContextTestExecutionListener@59e84876, org.springframework.test.context.transaction.TransactionalTestExecutionListener@61a485d2, org.springframework.test.context.jdbc.SqlScriptsTestExecutionListener@39fb3ab6]
2017-02-11 14:19:56,903  INFO [XmlBeanDefinitionReader.java:317] : Loading XML bean definitions from class path resource [spring/spring-context.xml]
2017-02-11 14:19:57,127  INFO [XmlBeanDefinitionReader.java:317] : Loading XML bean definitions from class path resource [spring/spring-redis.xml]
2017-02-11 14:19:57,160  INFO [AbstractApplicationContext.java:578] : Refreshing org.springframework.context.support.GenericApplicationContext@3532ec19: startup date [Sat Feb 11 14:19:57 CST 2017]; root of context hierarchy
2017-02-11 14:19:57,455  INFO [RedisSpringTest.java:31] : hello=world
2017-02-11 14:19:57,457  INFO [RedisSpringTest.java:35] : hello=null
2017-02-11 14:19:57,459  INFO [AbstractApplicationContext.java:960] : Closing org.springframework.context.support.GenericApplicationContext@3532ec19: startup date [Sat Feb 11 14:19:57 CST 2017]; root of context hierarchy