springBoot 编写接口

@Slf4j
@RestController
public class testController {
    @Autowired
    StringRedisTemplate redis;

    @RequestMapping(value = "/login")
    public String login() {
        //int i = 1 / 0;
        log.info("login");
        redis.opsForValue().set("key", "1");
        return "login";
    }
}

@Slf4j 日志
idea中要安装lombok 插件
如图

pom中要加入日志依赖包

 <!--日志-->
        <dependency>
            <groupId>ch.qos.logback</groupId>
            <artifactId>logback-classic</artifactId>
            <version>1.2.3</version>
        </dependency>

@Autowired 注入，引入redis对象
pom中加上其依赖

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

redis.hasKey(key);

redis.opsForValue().set(key, value);

String value = redis.opsForValue().get(key);

redis.delete(key);