SpringBoot(18) 整合Redis

前言

本文將會基於 springboot 2.1.8.RELEASE 簡單整合 Redis ，適合新手小白入門

Spring Boot 整合 Redis 入門

1、pom.xml 中引入 redis 依賴

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

2、application.yml 配置文件中配置Redis連接參數等

spring:
  # Redis數據源
  redis:
    # Redis數據庫索引（默認爲0）
    database: 0
    # Redis服務器地址
    host: 127.0.0.1
    # Redis服務器連接端口
    port: 6379
    # 連接超時時間（毫秒
    timeout: 6000
    # Redis服務器連接密碼（默認爲空）
    password:
    jedis:
      pool:
        max-active: 1000  # 連接池最大連接數（使用負值表示沒有限制）
        max-wait: -1      # 連接池最大阻塞等待時間（使用負值表示沒有限制）
        max-idle: 10      # 連接池中的最大空閒連接
        min-idle: 5       # 連接池中的最小空閒連接

3、Redis核心配置類

溫馨小提示： 在這裏注意設置key和value的序列化方式，否則存到redis裏的數據會亂碼

@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採用String的序列化方式
        template.setKeySerializer(stringRedisSerializer);
        // hash的key也採用String的序列化方式
        template.setHashKeySerializer(stringRedisSerializer);
        // value序列化方式採用jackson
        template.setValueSerializer(jackson2JsonRedisSerializer);
        // hash的value序列化方式採用jackson
        template.setHashValueSerializer(jackson2JsonRedisSerializer);
        template.afterPropertiesSet();
        return template;
    }

}

4、簡單測試

@RestController
@RequestMapping("/api")
@Api(description = "測試-接口")
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 = "保存數據", 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 = "獲取數據", httpMethod = "GET", response = ApiResult.class)
    public ApiResult getData() {
        List<SysLog> result = (List<SysLog>) redisTemplate.opsForValue().get(key);
        return ApiResult.ok("SUCCESS", result);
    }

}

本文案例demo源碼

溫馨小提示：demo源碼中含Redis工具類，可視化工具，windows版redis

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