Redis 三种获取连接的方式

「爱情、让人受尽委屈。」 2022-04-17 06:22 415阅读 0赞

>            有时候，在项目要求查询效率的时候，用户需要在最短的时间查询到想要的数据，这个时候我们就应该在并发量大，数据量大的程序中使用缓存，介绍一下通过Java程序使用缓存的三种方式：
> 
> **首先在pom.xml 文件中引入依赖：**
> 
>     
>     <dependency>
>         <groupId>org.springframework.boot</groupId>
>         <artifactId>spring-boot-starter-data-redis</artifactId>
>     </dependency>
>     
>     <dependency>
>         <groupId>redis.clients</groupId>
>         <artifactId>jedis</artifactId>
>         <version>2.1.0</version>
>     </dependency>
> 
> **单击式**
> 
>     @Test
>         public void testJedis(){
>             /***
>              * 通过创建单实例jedis对象连接redis服务     单机模式
>              */
>             //创建和Redis 的链接
>             Jedis jedis = new Jedis("192.168.16.129",6380);
>             System.out.println("**********************");
>             System.out.println("Jedis:"+jedis);
>             System.out.println("**********************");
>             //存入
>             jedis.set("lhg","409475835");
>             //取出
>             System.out.println("**********************");
>             System.out.println("取出:"+jedis.get("QQ"));
>             System.out.println("取出:"+jedis.get("foot"));
>             System.out.println("取出:"+jedis.get("lhg"));
>             System.out.println("**********************");
>         }
> 
> **连接池**
> 
>     /***+
>          * 连接池 测试
>          */
>         @Test
>         public void testJedisPool(){
>             JedisPool pool = new JedisPool("192.168.16.129",6379);
>             Jedis resource = pool.getResource();                //拿到链接
>             resource.set("aa","asd132");
>             System.out.println("**************");
>             System.out.println("Key:"+resource.get("aa"));
>             System.out.println("Key:"+resource.get("QQ"));
>             System.out.println("**************");
>         }
> 
> Spring整合redis 方式
> 
>     <?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:mvc="http://www.springframework.org/schema/mvc"
>            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/mvc
>     		http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd
>     		http://www.springframework.org/schema/context
>     		http://www.springframework.org/schema/context/spring-context-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 ">
>     
>         
>         <bean id="jedisPoolConfig" class="redis.clients.jedis.JedisPoolConfig">
>             
>             <property name="maxActive" value="30" />
>             
>             <property name="maxIdle" value="10" />
>             
>             <property name="numTestsPerEvictionRun" value="1024" />
>             
>             <property name="timeBetweenEvictionRunsMillis" value="30000" />
>             
>             <property name="minEvictableIdleTimeMillis" value="1800000" />
>             
>             <property name="softMinEvictableIdleTimeMillis" value="10000" />
>             
>             <property name="maxWait" value="1500" />
>             
>             <property name="testOnBorrow" value="true" />
>             
>             <property name="testWhileIdle" value="true" />
>             
>             
>         </bean>
>     
>         
>         <bean id="jedisPool" class="redis.clients.jedis.JedisPool" destroy-method="destroy">
>             <constructor-arg name="poolConfig" ref="jedisPoolConfig"/>
>             <constructor-arg name="host" value="192.168.16.129"/>
>             <constructor-arg name="port" value="6379"/>
>         </bean>
>     </beans>
> 
>     private ApplicationContext applicationContext;
>     /***
>          * Redis  整合 Spring 测试
>          */
>     
>         @Before
>         public void before(){
>             String config = "classpath:applicationContext.xml";
>             applicationContext = new ClassPathXmlApplicationContext(config);
>         }
>     
>         @Test
>         public void testSpringRedis(){
>             //1.获取连接池
>             JedisPool jedisPool =(JedisPool) applicationContext.getBean("jedisPool");
>             //2.获得链接
>             Jedis jedis = jedisPool.getResource();
>             jedis.set("2018-11-14","123456789");
>             System.out.println("********************");
>             System.out.println("QQ:"+jedis.get("QQ"));
>             System.out.println("lhg:"+jedis.get("xxx"));
>             System.out.println("foot:"+jedis.get("foot"));
>             System.out.println("********************");
>         }
> 
> **运算结果：**
> 
> \*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*  
> QQ:xx9475835  
> xxx:xx9475835  
> foot:appleaaaaaaaaaaaaaaaaa  
> \*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*