java连接redis之RedisTemplate

引入依赖
 

        
            org.springframework.boot
            spring-boot-starter-data-redis
        

    @Test
    void testHash2() throws JsonProcessingException {
        Blog blog = new Blog();
        ValueOperations vo = redisTemplate.opsForValue();
        vo.set("blog", blog);
        System.out.println(vo.get("blog"));

        //=====
        HashOperations ho = redisTemplate.opsForHash();
        ObjectMapper objectMapper = new ObjectMapper();
        blog.setId(11L);
        blog.setTitle("mapp");
        String jsonStr = objectMapper.writevalueAsString(blog);//对象转成json字符串
        Map map = objectMapper.readValue(jsonStr, Map.class);//字符串转成map
        ho.putAll("blog-map", map);
//        ho.put("blog-map", "title", "mapp");
        System.out.println(ho.entries("blog-map"));
    }

修改默认的序列化规则：

package com.jt.config;

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.JsonInclude;
import com.fasterxml.jackson.annotation.JsonTypeInfo;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
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.RedisSerializer;

@Configuration
public class RedisConfig {

    //配置json序列化
    public RedisSerializer jsonSerializer() {
        //定义json序列化 反序列化对象
        Jackson2JsonRedisSerializer