SpringMVC整合Redis2.9.0

最近学习使用Spring + Redis存取数据，版本是2.9.0。String，Map都可存入redis，并设置时效性。

pom.xml

<dependency>    <groupId>org.springframework</groupId>    <artifactId>spring-context</artifactId>    <version>4.2.5.RELEASE</version></dependency><dependency>    <groupId>org.springframework</groupId>    <artifactId>spring-context-support</artifactId>    <version>4.2.5.RELEASE</version></dependency><dependency>    <groupId>org.springframework</groupId>    <artifactId>spring-core</artifactId>    <version>4.2.5.RELEASE</version></dependency><dependency>    <groupId>org.springframework</groupId>    <artifactId>spring-beans</artifactId>    <version>4.2.5.RELEASE</version></dependency><dependency>    <groupId>org.springframework</groupId>    <artifactId>spring-aop</artifactId>    <version>4.2.5.RELEASE</version></dependency><dependency>    <groupId>org.springframework</groupId>    <artifactId>spring-expression</artifactId>    <version>4.2.5.RELEASE</version></dependency><dependency>    <groupId>org.springframework</groupId>    <artifactId>spring-instrument</artifactId>    <version>4.2.5.RELEASE</version></dependency><dependency>    <groupId>org.springframework</groupId>    <artifactId>spring-orm</artifactId>    <version>4.2.5.RELEASE</version></dependency><dependency>    <groupId>org.springframework</groupId>    <artifactId>spring-tx</artifactId>    <version>4.2.5.RELEASE</version></dependency><dependency>    <groupId>org.springframework</groupId>    <artifactId>spring-web</artifactId>    <version>4.2.5.RELEASE</version></dependency><dependency>    <groupId>org.springframework</groupId>    <artifactId>spring-webmvc</artifactId>    <version>4.2.5.RELEASE</version></dependency><dependency>    <groupId>org.springframework</groupId>    <artifactId>spring-jdbc</artifactId>    <version>4.2.5.RELEASE</version></dependency><dependency>    <groupId>redis.clients</groupId>    <artifactId>jedis</artifactId>    <version>2.9.0</version></dependency><dependency>    <groupId>org.springframework.data</groupId>    <artifactId>spring-data-redis</artifactId>    <version>1.6.1.RELEASE</version></dependency>  

redis.properties

#IPredis.host=127.0.0.1#端口redis.port=6379#密码redis.password=0#超时，单位毫秒redis.timeout=10000 #最大空闲数redis.maxIdle=300#最大连接数redis.maxTotal=600#最大空闲数redis.minIdle=1#最大建立连接等待时间redis.maxWait=1000#指明是否在从池中取出连接前进行检验,如果检验失败,则从池中去除连接并尝试取出另一个redis.testOnBorrow=false#使用redis块分区,0-15redis.database=0

Spring-redis.properties

<?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:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context"    xmlns:jdbc="http://www.springframework.org/schema/jdbc" xmlns:tx="http://www.springframework.org/schema/tx"    xmlns:jpa="http://www.springframework.org/schema/data/jpa" xmlns:mongo="http://www.springframework.org/schema/data/mongo"    xmlns:util="http://www.springframework.org/schema/util" xmlns:redis="http://www.springframework.org/schema/redis"    xsi:schemaLocation="        http://www.springframework.org/schema/data/mongo http://www.springframework.org/schema/data/mongo/spring-mongo-1.8.xsd        http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.3.xsd        http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.3.xsd        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd        http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-4.3.xsd        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.3.xsd        http://www.springframework.org/schema/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa.xsd"     default-lazy-init="true">    <description>Redis连接配置文件</description>    <context:annotation-config />    <!-- 注解扫描包 -->                       <context:component-scan base-package="com.nuanshui" >        <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller" />    </context:component-scan>    <!-- 引入配置文件 -->    <bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">        <property name="fileEncoding" value="utf-8" />        <property name="locations">            <list>                <value>classpath*:/config/properties/*.properties</value>            </list>        </property>    </bean>    <!-- jedis 配置 -->    <bean id="poolConfig" class="redis.clients.jedis.JedisPoolConfig">        <property name="maxIdle" value="${redis.maxIdle}" />        <property name="maxWaitMillis" value="${redis.maxWait}" />        <property name="testOnBorrow" value="${redis.testOnBorrow}" />    </bean>    <bean id="redisConnectionFactory"         class="org.springframework.data.redis.connection.jedis.JedisConnectionFactory">        <property name="poolConfig" ref="poolConfig" />        <property name="port" value="${redis.port}" />        <property name="hostName" value="${redis.host}" />        <property name="password" value="${redis.password}" />        <property name="timeout" value="${redis.timeout}" />        <property name="database" value="${redis.database}" />    </bean>    <bean id="redisTemplate" class="org.springframework.data.redis.core.StringRedisTemplate">        <property name="connectionFactory" ref="redisConnectionFactory" />        <!-- 将key和value序列化后存入redis，读取时再进行反序列化 -->        <!-- 对key的默认序列化器 -->        <property name="keySerializer">            <bean class="org.springframework.data.redis.serializer.StringRedisSerializer" />        </property>        <!-- 对value的默认序列化器 -->        <property name="valueSerializer">            <bean class="org.springframework.data.redis.serializer.JdkSerializationRedisSerializer"/>        </property>        <!-- 对hash结构数据的hashkey的默认序列化器 -->        <property name="hashKeySerializer">            <bean class="org.springframework.data.redis.serializer.JdkSerializationRedisSerializer" />        </property>        <!-- 对hash结构数据的hashvalue的默认序列化器 -->        <property name="hashValueSerializer">            <bean class="org.springframework.data.redis.serializer.JdkSerializationRedisSerializer" />        </property>    </bean></beans>

RedisService.java

package com.test.service.redis;import java.util.Map;import java.util.concurrent.TimeUnit;import javax.annotation.Resource;import org.springframework.data.redis.core.HashOperations;import org.springframework.data.redis.core.StringRedisTemplate;import org.springframework.stereotype.Service;@Servicepublic class RedisService {    //配置文件中注入SpringRedisTemplate    @Resource    private StringRedisTemplate redisTemplate;    /**    *  删除key和value    */    public void delete(String key){        redisTemplate.delete(key);    }    /**    *  根据key获取value    */    public String get(String key){        String value = redisTemplate.opsForValue().get(key);        return value;    }    /**    *  将key和value存入redis，并设置有效时间，单位：天    */    public void set(String key, String value, long timeout){        redisTemplate.opsForValue().set(key, value, timeout, TimeUnit.DAYS);    }    /**    *  将key和value存入redis    */    public void set(String key, String value){        redisTemplate.opsForValue().set(key, value);    }    /**    *  从redis中获取map    */    public Map<String, Object> getMap(String key){        HashOperations<String, String, Object>  hash = redisTemplate.opsForHash();        Map<String,Object> map = hash.entries(key);        return map;    }    /**    *  将map存入redis，并设置时效    */    public void set(String key, Map<? extends String, ? extends Object> map, long timeout){        redisTemplate.opsForHash().putAll(key, map);        redisTemplate.expire(key, timeout, TimeUnit.DAYS);    }}

Controller

package com.test.web;import javax.annotation.Resource;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.ResponseBody;import com.nuanshui.service.redis.RedisService;import redis.clients.jedis.Jedis;@Controller@RequestMapping("/test")public class HelloController {    @Resource    private RedisService redisService;    @RequestMapping(value="/getRedis")    @ResponseBody    public String getJson(String string) throws Exception {        redisService.set("test", "test");        String value = redisService.get("test");        System.out.println(value);        return null;    }}

个人使用Redis感觉有以下几点好处：
1、基于内存可高速读取，高并发特性，能抗住大型系统访问的峰值；
2、存取一些过渡数据，设置数据有效时间，超时数据失效；
3、设置分区，可供多个小型系统使用；
4、redis集群实现读写分离。