springboot整合aliyun的redis 使用StringRedisTemplate读写string类型数据

1.导入依赖

       <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-redis</artifactId>
        </dependency>

2.写配置文件，在yml配置文件中写入配置信息

spring： 
  redis:
    port: 6379
    host: ********************* #aliyun的redis地址
    password: ******* #此处填写密码

2.在要进行读、写操作的类注入 RedisTemplate

我在此处用StringRedisTemplate做示例，两种用法基本类似。

将List<Entity> 类型数据写入redis

写入：

@Service
public class DictionaryItemServiceImpl implements DictionaryItemService {
     @Autowired
    private DictionaryItemMapper dictionaryItemMapper;
     @Autowired
    private StringRedisTemplate redisTemplate;

QueryWrapper<DictionaryItem> dictionaryItemQueryWrapper = new QueryWrapper<>();
            dictionaryItemQueryWrapper.eq("dictionary_type",dictionaryType)
                    .eq("is_delete",0);
List<DictionaryItem> dictionaryItems = dictionaryItemMapper.selectList(dictionaryItemQueryWrapper);
redisTemplate.opsForValue().set("key", JSON.toJSONString(dictionaryItems),30, TimeUnit.MINUTES);


}

读取：

    @Autowired
    private StringRedisTemplate redisTemplate;

   String s = redisTemplate.opsForValue().get("key");
   List<DictionaryItem> dictionaryItemList = JSON.parseArray(s, DictionaryItem.class);