Preface

This article will simply integrate Redis based on springboot 2.1.8.RELEASE, which is suitable for beginners

Introduction to Spring Boot integrated Redis

1. Introduce redis dependency in pom.xml

<!-- Redis rely on -->
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>

2. Configure Redis connection parameters in the application.yml configuration file

spring:
  # Redis data source
  redis:
    # Redis database index (0 by default)
    database: 0
    # Redis server address
    host: 127.0.0.1
    # Redis server connection port
    port: 6379
    # Connection timeout (MS
    timeout: 6000
    # Redis server connection password (empty by default)
    password:
    jedis:
      pool:
        max-active: 1000  # Maximum number of connections in the connection pool (use a negative value to indicate no limit)
        max-wait: -1      # Connection pool maximum block wait time (use a negative value to indicate no limit)
        max-idle: 10      # Maximum free connections in connection pool
        min-idle: 5       # Minimum free connections in connection pool

3. Redis core configuration class

@Configuration
public class RedisConfig {

    @Bean
    @SuppressWarnings("all")
    public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory factory) {
        RedisTemplate<String, Object> template = new RedisTemplate<String, Object>();
        template.setConnectionFactory(factory);
        Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class);
        ObjectMapper om = new ObjectMapper();
        om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
        om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
        jackson2JsonRedisSerializer.setObjectMapper(om);
        StringRedisSerializer stringRedisSerializer = new StringRedisSerializer();
        // key is serialized by String
        template.setKeySerializer(stringRedisSerializer);
        // The hash key also uses String serialization
        template.setHashKeySerializer(stringRedisSerializer);
        // value serialization is jackson
        template.setValueSerializer(jackson2JsonRedisSerializer);
        // value serialization of hash adopts jackson
        template.setHashValueSerializer(jackson2JsonRedisSerializer);
        template.afterPropertiesSet();
        return template;
    }

}

4. Simple test

@RestController
@RequestMapping("/api")
@Api(description = "test-Interface")
public class IndexController extends BaseController {

    private final String key = "sysLog";
    
    @Autowired
    private ILogService logService;
    
    @Autowired
    RedisTemplate redisTemplate;

    @PostMapping(value = "/saveData", produces = "application/json;charset=utf-8")
    @ApiOperation(value = "Save data", httpMethod = "POST", response = ApiResult.class)
    public ApiResult saveData(@RequestBody SysLog sysLog) {
        List<SysLog> sysLogList = logService.selectList(null);
        redisTemplate.opsForValue().set(key, sysLogList);
        return ApiResult.ok("SUCCESS");
    }

    @GetMapping(value = "/getData", produces = "application/json;charset=utf-8")
    @ApiOperation(value = "get data", httpMethod = "GET", response = ApiResult.class)
    public ApiResult getData() {
        List<SysLog> result = (List<SysLog>) redisTemplate.opsForValue().get(key);
        return ApiResult.ok("SUCCESS", result);
    }

}

demo source code of this case

https://gitee.com/zhengqingya/java-workspace