redis与springboot集成和序列化

redis与springboot集成和序列化

依赖

 <dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-redis</artifactId>
 </dependency>
 
  <dependency>
     <groupId>com.alibaba</groupId>
     <artifactId>fastjson</artifactId>
     <version>1.2.75</version>
  </dependency>

  <dependency>
     <groupId>com.fasterxml.jackson.core</groupId>
     <artifactId>jackson-databind</artifactId>
     <version>2.8.3</version>
  </dependency>

配置

spring.redis.host=localhost
spring.redis.port=6379

序列化类

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import org.omg.CORBA.Object;
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.Jackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;

import com.fasterxml.jackson.databind.ObjectMapper;

/**
 * @author YudaBao
 * @date 2021/2/9 15:14
 *
 * 自定义reids配置类，手动配置redis序列化
 */

@Configuration
public class RedisConfig {

    @Bean
    public RedisTemplate<String,Object> redisTemplate(RedisConnectionFactory factory) {

        RedisTemplate<String,Object> template = new RedisTemplate<String,Object>();
        template.setConnectionFactory(factory);

        // Json序列化配置
        // 使用Jackson2JsonRedisSerialize 替换默认序列化(默认采用的是JDK序列化)
        Jackson2JsonRedisSerializer<Object> serializer = new Jackson2JsonRedisSerializer<Object>(Object.class);
        ObjectMapper objectMapper = new ObjectMapper();
        objectMapper.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
        objectMapper.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
        serializer.setObjectMapper(objectMapper);
        // String 的序列化
        StringRedisSerializer stringRedisSerializer = new StringRedisSerializer();

        // key 采用String的序列化方式
        template.setKeySerializer(stringRedisSerializer);
        // value 采用String的序列化方式
        template.setValueSerializer(stringRedisSerializer);
        // hash 的 key 采用String的序列化方式
        template.setHashKeySerializer(stringRedisSerializer);
        // hash 的 value 采用String的序列化方式
        template.setHashValueSerializer(stringRedisSerializer);
        template.afterPropertiesSet();

        return template;

    }

}

测试类

import com.alibaba.fastjson.JSONObject;
import com.yht.redis.redis.User;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.data.redis.core.RedisTemplate;

@SpringBootTest
class RedisApplicationTests {

    @Autowired
    @Qualifier("redisTemplate")   // 指定使用自定义的 redisTemplate 装配
    RedisTemplate redisTemplate;

    @Test
    void contextLoads() {

        redisTemplate.opsForValue().set("redis","Hello World");
        System.out.println(redisTemplate.opsForValue().get("redis"));

        User user = new User("Tony", 3);
        String setUserStr = JSONObject.toJSON(user).toString();
        redisTemplate.opsForValue().set("user",setUserStr);
        String getUserStr = (String) redisTemplate.opsForValue().get("user");
        System.out.println(getUserStr);
        JSONObject userJson = (JSONObject) JSONObject.parse(getUserStr);
        System.out.println(userJson.get("name"));
        System.out.println(userJson.get("age"));

    }
}