springboot整合redis作爲緩存

springboot整合redis作爲緩存

1.引入jar包

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

2.配置地址

在application.yum文件中配置redis的地址：

spring:
  redis:
    host: ip地址

端口不需要填寫，默認6379，密碼沒有設置不需填寫。

3.操作redis

在springboot中對redis進行操作需要注入操作類

@Autowired
RedisTemplate redisTemplate;

//對字符串進行操作
@Autowired
StringRedisTemplate stringRedisTemplate;

簡單操作：

(1)存取KV值

stringRedisTemplate.opsForValue().append("k1","v1");
String msg = stringRedisTemplate.opsForValue().get("k1");
System.out.println("獲取值：" + msg);

(2)存入對象

首先添加配置類MyRedisConfig類，寫入序列化方法。

@Configuration
public class MyRedisConfig {

    @Bean
    public RedisTemplate<Object, Object> myRedisTemplate(RedisConnectionFactory redisConnectionFactory)
            throws UnknownHostException {
        RedisTemplate<Object, Object> template = new RedisTemplate<>();
        template.setConnectionFactory(redisConnectionFactory);
        Jackson2JsonRedisSerializer<Object> jk2 = new Jackson2JsonRedisSerializer<Object>(Object.class);
        template.setDefaultSerializer(jk2);
        return template;
    }

}

實體類實現接口Serializable

public class Teacher implements Serializable {
    private static final long serialVersionUID = 980262116381279952L;

    private int id;
    private String tname;
    .
    .
    .
    .

測試

@Autowired
RedisTemplate<Object, Object> myRedisTemplate;

 @Test
public void redisTest(){
    //查詢數據
    Teacher teacher = teacherMapper.queryById(1);
    myRedisTemplate.opsForValue().set("teacher",teacher);
}