2019獨角獸企業重金招聘Python工程師標準>>>

1. 環境準備

??? 安裝編譯所需要的包：

yum install gcc tcl

2. 下載redis

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

3. 安裝redis

## 創建redis的安裝目錄 mkdir /usr/local/redis## 解壓redis tar -zxvf redis-3.2.7.tar## 重命名安裝目錄 mv redis-3.2.7.tar /opt/redis## 進入安裝目錄 cd /opt/redis## 編譯安裝redis make PREFIX=/usr/local/redis install

??? 安裝完成后，進入redis的目錄下會有一個bin目錄，目錄中有redis的腳本：

## redis的腳本 redis-benchmark redis-check-aof redis-check-rdb redis-cli redis-sentinel redis-server

4. 將redis啟動腳本

## 拷貝redis的啟動腳本到init.d目錄 cp /opt/redis/utils/redis_init_script /etc/rc.d/init.d/redis## 編輯腳本 vi /etc/rc.d/init.d/redis

??? 需要修改這個腳本，修改后的腳本如下：

#!/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-cliPIDFILE=/var/run/redis_${REDISPORT}.pid CONF="/usr/local/redis/conf/${REDISPORT}.conf"case "$1" instart)if [ -f $PIDFILE ]thenecho "$PIDFILE exists, process is already running or crashed"elseecho "Starting Redis server..."$EXEC $CONF &fi;;stop)if [ ! -f $PIDFILE ]thenecho "$PIDFILE does not exist, process is not running"elsePID=$(cat $PIDFILE)echo "Stopping ..."$CLIEXEC -p $REDISPORT shutdownwhile [ -x /proc/${PID} ]doecho "Waiting for Redis to shutdown ..."sleep 1doneecho "Redis stopped"fi;;*)echo "Please use start or stop as first argument";; esac

5. 將redis注冊為服務

## 注冊redis腳本為服務 chkconfig --add redis## 開啟服務 systemctl start redis.service## 開啟啟動服務 systemctl enable redis.service

6. 設置防火墻

## 開放端口 firewall-cmd --zone=public --add-port=6379/tcp --permanent## 重啟防火墻 firewall-cmd --reload

7. 修改redis的配置文件

## 創建配置文件的目錄 mkdir /usr/local/redis/conf## 服務redis配置文件到這個目錄 cp /opt/redis/redis.conf /usr/local/redis/conf/6379.conf## 編輯配置文件 vi /usr/local/redis/conf/6379.conf

??? 將daemonize改為yes，并開放遠程連接，修改bind為0.0.0.0。

8. 添加環境變量

## 編輯profile文件 vi /etc/profile## 加入redis環境變量 #redis env export REDIS_HOME=/usr/local/redis export PATH=$PATH:$REDIS_HOME/bin## 編譯修改后的profile source /etc/profile## 重啟redis服務 systemctl restart redis.service

9. 通過redis-cli測試：

## 命令行輸入 redis-cli## 如果成功連接redis會出現 127.0.0.1:6379>

10. 使用jedis連接

??? 下載jedis的jar包：

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

??? 編寫代碼連接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);@Testpublic 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();}}

??? 運行上面的代碼，成功連接的話，會輸出：

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連接redis

??? 下載jar包：

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

??? 連接池的配置文件：

<?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鏈接池配置 --><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"><!-- 采用注釋的方式配置bean --><context:annotation-config /><!-- 配置要掃描的包 --><context:component-scan base-package="cn.net.bysoft.redis.test" /><!-- proxy-target-class默認"false",更改為"ture"使用CGLib動態代理 --><aop:aspectj-autoproxy proxy-target-class="true" /> <import resource="spring-redis.xml" /> </beans>

??? 測試代碼：

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);@Autowiredprivate ShardedJedisPool shardedJedisPool;@Testpublic 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); // 刪數據value = jedis.get(key); // 取數據log.info(key + "=" + value);}}

??? 如果成功連接，會輸出：

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

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轉載于:https://my.oschina.net/u/2450666/blog/835977

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