1.在pom.xml中添加起步依賴
<!-- 配置使用redis啓動器 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>
2.在application.properties裏配置redis連接信息
#Redis
spring.redis.host=127.0.0.1
spring.redis.port=6379
3.注入redisTemplate測試redis操作
@RunWith(SpringRunner.class)
@SpringBootTest(classes = SpringbootJpaApplication.class)
public class RedisTest {
@Autowired
private UserRepository userRepository;
@Autowired
private RedisTemplate<String, String> redisTemplate;
@Test
public void test() throws JsonProcessingException {
//1.redis緩存中得數據
String userListData = redisTemplate.boundValueOps("user.findAll").get();
//2.redis中無數據
if(null==userListData)
{
//2.1從數據庫獲得數據
List<User> all = userRepository.findAll();
//2.2轉換成json格式字符串
ObjectMapper om = new ObjectMapper();
userListData = om.writeValueAsString(all);
//2.3將數據存儲到redis中
redisTemplate.boundValueOps("user.findAll").set(userListData);
System.out.println("===從數據庫獲得數據==========");
}
//3.如果有數據 直接讀
else
{
System.out.println("===從redis緩存中獲得數據=======");
}
System.out.println(userListData);
}
}