Springboot整合redis+mybatis-plus及自定义json规则的CacheManager

喜欢ヅ旅行 2023-01-13 09:40 62阅读 0赞

# Springboot整合redis及自定义json规则的CacheManager #

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**1.导入依赖：**

<dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-cache</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-redis</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-thymeleaf</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>
        
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-boot-starter</artifactId>
            <version>3.3.2</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

**2.配置application.properties文件:**

spring.datasource.url=jdbc:mysql://localhost:3306/eshop?serverTimezone=UTC&characterEncoding=UTF-8&useUnicode=true
    spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
    spring.datasource.username=root
    spring.datasource.password=123456
    
    #redis配置需要datasource数据源
    spring.redis.host=虚拟机Ip
    spring.redis.port=6379

**3.主启动类：**

@MapperScan(basePackages = "xxxxxx.mapper")
    @SpringBootApplication
    @EnableCaching  //开启缓存
    public class Springboot211RedisApplication { 
        public static void main(String[] args) { 
            SpringApplication.run(Springboot211RedisApplication.class, args);
        }
    }

**4.创建实体类：**

@Data
    @AllArgsConstructor
    @NoArgsConstructor
    @ToString
    public class User implements Serializable { 
        private String id;
        private String username;
        private String password;
        private String img;
    }

**5.创建mapper接口：**

public interface UserMapper extends BaseMapper<User> { 
    }

**6.service层：**

@Service
    @CacheConfig(cacheNames = "user")
    public class UserServiceImpl{ 
        @Resource
        private UserMapper userMapper;
    
        @Cacheable(value = "user")
        public List<User> getUsers(){ 
            return userMapper.selectList(null);
        }
    }

**7.controller层：**

@RestController
    public class UserController { 
        @Autowired
        private UserServiceImpl userService;
    
        @GetMapping("/users")
        public List<User> getUsers(){ 
            return userService.getUsers();
        }
    }

**8.redis配置类：**

@Configuration
    public class MyRedisConfig { 
        /** * 自定义redisCacheManager中自定义json序列化规则 * @param factory * @return */
        @Bean
        public CacheManager cacheManager(RedisConnectionFactory factory) { 
            RedisCacheConfiguration cacheConfiguration =
                    RedisCacheConfiguration.defaultCacheConfig()
                            .entryTtl(Duration.ofDays(1))
                            .disableCachingNullValues()
                            .serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(new
                                    GenericJackson2JsonRedisSerializer()));
            return RedisCacheManager.builder(factory).cacheDefaults(cacheConfiguration).build();
        }
    }