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测试Demon

导入依赖

      <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-redis</artifactId>
        </dependency>
        # 连接池
         <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-pool2</artifactId>
        </dependency>

配置文件

spring:
  redis:
    host: 185.222.22.22
    port: 6379
    password: 2312343697
    jedis:
      pool:
#         最大连接
        max-active: 8
#        最大空闲连接
        max-idle: 8
#        最小连接
        min-idle: 0
#        等待时常
        max-wait: 100ms

测试入门

package com.example.springboot_redis;

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.RedisTemplate;

@SpringBootTest
class SpringbootRedisApplicationTests {
    @Autowired
//    自动装配
    private RedisTemplate redisTemplate;

    @Test
    void contextLoads() {
//        字符串操作存储一个值
        redisTemplate.opsForValue().set("name","虎哥");
//        获取string值
        Object name = redisTemplate.opsForValue().get("name");
        System.out.println(name);
    }

}

RedisSerializer

引入json处理依赖不然会报错

        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
        </dependency>

Caused by: java.lang.NoClassDefFoundError: com/fasterxml/jackson/core/JsonProcessingException

自定义RedisTemplate来序列号字符串

package com.example.springboot_redis.redis.config;

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.GenericJackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.RedisSerializer;

import java.lang.reflect.GenericArrayType;

@Configuration
public class RedisConfig {
    @Bean
    public RedisTemplate<String,Object>redisTemplate(RedisConnectionFactory connectionFactory){
//        创建RedisTemplate对象
        RedisTemplate<String, Object> template = new RedisTemplate<>();
//        设置连接工厂
        template.setConnectionFactory(connectionFactory);
//        创建Json的序列化
        GenericJackson2JsonRedisSerializer jsonRedisSerializer = new GenericJackson2JsonRedisSerializer();
//        设置key的序列化
        template.setKeySerializer(RedisSerializer.string());
//        设置Hashkey的序列号
        template.setHashKeySerializer(RedisSerializer.string());
//        设置Value的序列号
        template.setValueSerializer(jsonRedisSerializer);
//        设置Hashvalue的序列化
        template.setHashValueSerializer(jsonRedisSerializer);
//        返回
        return  template;
    }
}

添加一个泛型

    private RedisTemplate<String,Object> redisTemplate;

测试

序列化对象

测试对象

package com.example.springboot_redis.pojo;

public class User {
    private String name;
    private Integer age;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public Integer getAge() {
        return age;
    }

    public void setAge(Integer age) {
        this.age = age;
    }

    public User() {
    }

    public User(String name, Integer age) {
        this.name = name;
        this.age = age;
    }
}

测试类

    @Test
    void testSaveUser(){
//        写入数据
        redisTemplate.opsForValue().set("user:100",new User("富爸爸",11));
//        获取数据
        User o = (User) redisTemplate.opsForValue().get("user:100");
        System.out.println(o);
    }

获取结果时候会帮我们自动反序列化回来成一个对象

StringRedisTemplate

// 操作字符串
RedisTemplate redisTemplate.opsForValue() 
//  操作hash
RedisTemplate redisTemplate.opsForHash() 
// 操作list
RedisTemplate redisTemplate.opsForList() 
// 操作set
RedisTemplate redisTemplate.opsForSet() 
// 操作有序set	
RedisTemplate redisTemplate.opsForZSet() 

新建一个测试类

自动装配换成stringRedisTemplate

package com.example.springboot_redis;
package com.example.springboot_redis;

import com.example.springboot_redis.pojo.User;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
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.RedisTemplate;
import org.springframework.data.redis.core.StringRedisTemplate;

@SpringBootTest
class StringRedistemp {
    @Autowired
//    自动装配
    private StringRedisTemplate stringRedisTemplate;
//    序列号对象
    private static final ObjectMapper  mapper= new ObjectMapper();
    @Test
    void contextLoads() throws JsonProcessingException {
//        创建对象
        User user =new User("pyy",12);
//        手动序列化
        String users = mapper.writeValueAsString(user);
//        写入数据
        stringRedisTemplate.opsForValue().set("name:2",users);

        String name = stringRedisTemplate.opsForValue().get("name:2");
//        手动反序列化
        User user1 = mapper.readValue(name, User.class);
        System.out.println(user1);
    }


}

操作Hash类型

    @Test
    void testHash(){
        stringRedisTemplate.opsForHash().put("user:200","name","配音员");
        Map<Object, Object> entries = stringRedisTemplate.opsForHash().entries("user:200");
        System.out.println(entries);
    }