SpringBoot整合Caffeine使用示例

import org.springframework.cache.annotation.Cacheable;
import org.springframework.stereotype.Service;

@Service
public class MyService {

    @Cacheable(cacheNames = "myCache", key = "#id")
    public String getExpensiveDataById(Integer id) {
        // 模拟耗时操作
        return "Some expensive data for id: " + id;
    }
}

import org.springframework.cache.annotation.CacheEvict;
import org.springframework.stereotype.Service;

@Service
public class MyService {

    @CacheEvict(cacheNames = "myCache", allEntries = true)
    public void clearMyCache() {
        // 清除名为myCache的缓存中的所有项
    }
}

# application.properties 示例
spring.cache.caffeine.spec=maximumSize=500,expireAfterAccess=30m

@RestController
@Slf4j
public class MyController {
    @Resource
    private MyService myService;

    @GetMapping("/cache")
    public String cache() {
        log.info("收到了增加缓存请求");
        return myService.getExpensiveDataById(1);
    }
    @GetMapping("/cache/del")
    public void delCache() {
        log.info("收到了删除缓存请求");
        myService.deleteExpensiveDataById(1);
    }
}

@Service
@Slf4j
public class MyService {

    @Cacheable(cacheNames = "myCache", key = "#id")
    public String getExpensiveDataById(Integer id) {
        // 模拟耗时操作
        log.info("执行了操作");
        return "Some expensive data for id: " + id;
    }

    @CacheEvict(cacheNames = "myCache", key = "#id")
    public void deleteExpensiveDataById(Integer id) {
        // 模拟删除操作
        log.info("执行了删除操作");
    }

}