Spring中RedisTemplate的基本使用浅析

< dependency >

   < groupId >org.springframework.data</ groupId >

   < artifactId >spring-data-redis</ artifactId >

   < version >2.7.3</ version >

</ dependency >

<!--SpringBoot项目，可以引入这个依赖，这个依赖也是会依赖spring-data-redis的-->

<!--<dependency>-->

<!--    <groupId>org.springframework.boot</groupId>-->

<!--    <artifactId>spring-boot-starter-data-redis</artifactId>-->

<!--    <version>2.7.4</version>-->

<!--</dependency>-->

< dependency >

     < groupId >org.springframework.boot</ groupId >

     < artifactId >spring-boot-starter-test</ artifactId >

     < version >2.7.4</ version >

</ dependency >

import org.junit.jupiter.api.Test;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.boot.test.context.SpringBootTest;

import org.springframework.data.redis.core.DefaultTypedTuple;

import org.springframework.data.redis.core.RedisTemplate;

import org.springframework.data.redis.core.ZSetOperations;

import java.util.HashSet;

import java.util.List;

import java.util.Map;

import java.util.Set;

@SpringBootTest

public class RedisDemoApplicationTest {

     // 注入RedisTemplate

     @Autowired

     private RedisTemplate redisTemplate;

     // String类型

     @Test

     void testString () {

         redisTemplate.opsForValue().set( "name" , "javaCoder" );

         Object name = redisTemplate.opsForValue().get( "name" );

         System.out.println(name);

     }

     // Hash类型

     @Test

     public void testHash () {

         redisTemplate.opsForHash().put( "hash" , "name" , "abc" );

         redisTemplate.opsForHash().put( "hash" , "age" , 18 );

         Map map = redisTemplate.opsForHash().entries( "hash" );

         System.out.println(map);

     }

     // List类型

     @Test

     public void testList () {

         redisTemplate.opsForList().leftPushAll( "list" , "zhangsan" , "li" ,

         "wanger" );

         List<String> names = redisTemplate.opsForList().range( "list" , 0 ,

         - 1 );

         System.out.println(names);

     }

     // Set类型

     @Test

     public void testSet () {

         redisTemplate.opsForSet().add( "set" , "cat" , "dog" , "wolf" , "pig" ,

         "sheep" );

         Set<String> set = redisTemplate.opsForSet().members( "set" );

         System.out.println(set);

     }

     // SortedSet类型

     @Test

     public void testSortedSet () {

         redisTemplate.opsForZSet().add( "zset" , "cat" , 30 );

         redisTemplate.opsForZSet().add( "zset" , "dog" , 20 );

         redisTemplate.opsForZSet().add( "zset" , "wolf" , 80 );

         redisTemplate.opsForZSet().add( "zset" , "pig" , 40 );

         Set<String> aClass = redisTemplate.opsForZSet().range( "zset" ,

         0 , - 1 );

         System.out.println(aClass);

         //使用下面这套写法，也行

         //Set<ZSetOperations.TypedTuple<String>> set = new HashSet<>();

         //set.add(new DefaultTypedTuple<>("cat", 30.0));

         //set.add(new DefaultTypedTuple<>("dog", 20.0));

         //set.add(new DefaultTypedTuple<>("wolf", 80.0));

         //set.add(new DefaultTypedTuple<>("pig", 40.0));

         //redisTemplate.opsForZSet().add("zset", set);

         //Set<String> aClass1 = redisTemplate.opsForZSet().range("zset",

         //0, -1);

         //System.out.println(aClass1);

     }

}

import org.springframework.context.annotation.Bean;

import org.springframework.context.annotation.Configuration;

import org.springframework.data.redis.connection.RedisConnectionFactory;

import org.springframework.data.redis.core.RedisTemplate;

import org.springframework.data.redis.serializer.RedisSerializer;

@Configuration

public class RedisConfig {

     @Bean

     public RedisTemplate<String, Object> redisTemplate(

     RedisConnectionFactory connectionFactory) {

         // 创建 RedisTemplate 对象

         RedisTemplate<String, Object> redisTemplate =

         new RedisTemplate<>();

         // 设置连接工厂

         redisTemplate.setConnectionFactory(connectionFactory);

         // 设置Key的序列化 - String 序列化 RedisSerializer.string() =>

         // StringRedisSerializer.UTF_8

         redisTemplate.setKeySerializer(RedisSerializer.string());

         redisTemplate.setHashKeySerializer(RedisSerializer.string());

         // 返回

         return redisTemplate;

     }

}

@Autowired

private RedisTemplate<String, String> redisTemplate;

redisTemplate.setValueSerializer(RedisSerializer.json());

// 针对于hash类型的value

redisTemplate.setHashValueSerializer(RedisSerializer.json());