SpringBoot+Mybatis+Redis的配置

文章目录

如果不会配置mybatis的，可以参照这篇详细的博客
没有安装Redis的参照博客
不会建Springboot的，参照博客

Springboot2.3+mybatis3.5+mysql8.0+Redis2.3

一：引入依赖

<!--        Redis-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-redis</artifactId>
            <version>2.3.0.RELEASE</version>
        </dependency>
  		<dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.70</version>
        </dependency>

二：application.yml配置

spring:
  datasource:
    driver-class-name: com.mysql.cj.jdbc.Driver
    url: jdbc:mysql://127.0.0.1:3306/learn?useSSL=true&characterEncoding=utf-8&serverTimezone=GMT
    username: root
    password: 123456
  redis:
    host: 127.0.0.1
    port: 6379
    database: 0
#    lettuce:
#      shutdown-timeout: 200ms
#      pool:
#        max-active: 7
#        max-idle: 7
#        min-idle: 2
#        max-wait: -1ms
    password: 123456

三：配置Redis序列化方式及连接

使用JackSon进行序列化，要引入maven依赖

@Configuration
public class RedisConfig {
    @Bean
    public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory redisConnectionFactory) {
        RedisTemplate<String, Object> redisTemplate = new RedisTemplate<>();
        redisTemplate.setConnectionFactory(redisConnectionFactory);

        // 使用Jackson2JsonRedisSerialize 替换默认序列化
        Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class);

        ObjectMapper objectMapper = new ObjectMapper();
        objectMapper.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
        objectMapper.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);

        jackson2JsonRedisSerializer.setObjectMapper(objectMapper);

        // 设置value的序列化规则和 key的序列化规则
        redisTemplate.setKeySerializer(new StringRedisSerializer());
        redisTemplate.setValueSerializer(jackson2JsonRedisSerializer);
        redisTemplate.afterPropertiesSet();
        return redisTemplate;
    }
}

四：测试

引入RedisTemplate就可以对Redis进行操作了

本人在serviceimpl层进行对Redis进行调用的

@Service
public class UserServiceImpl implements UserService {
    @Autowired(required = false)
    UserMapper userMapper;
    @Autowired
    RedisTemplate redisTemplate;
    @Override
   public User getAllUser(Integer id) {
        ValueOperations<String, User> operations = redisTemplate.opsForValue();
        User user;
        String key ="user_"+id;
        boolean flag= redisTemplate.hasKey(key);
        if(flag){
            System.out.println("Redis获取数据中......");
           user = operations.get(key);
        }else {
            System.out.println("数据库获取数据中......");
            user=userMapper.getAllUser(id);
            System.out.println("Redis插入数据中......");
         operations.set(key,user);
        }
        return  user;
    }
    }

controller层代码

记得在实体类序列化

第一次查询：


第二次调用：

成功将对象序列化成JSon字符串

项目结构图

本文地址：https://blog.csdn.net/qq_43520913/article/details/109952345