【springboot】整合redis

1.redis起步依赖

  <!-- 配置使用redis启动器 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-redis</artifactId>
        </dependency>

2.在application.preperties中配置连接信息

#Redis
spring.redis.host=127.0.0.1
spring.redis.port=6379

3.测试redis操作

package com.itheima;

import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.itheima.domain.User;
import com.itheima.mapper.UserMapper;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.test.context.junit4.SpringRunner;

import java.util.List;

/**
 * @author boyi on 2019/12/8
 */
@RunWith(SpringRunner.class)
@SpringBootTest(classes = SpringbootMybatisApplication.class)
public class RedisTest {

    @Autowired
    private UserMapper userMapper;
    @Autowired
    private RedisTemplate<String, String> redisTemplate;

    @Test
    public void test() throws JsonProcessingException {
        //1.从redis中获取数据,json的字符串
        String userListJson = redisTemplate.boundValueOps("user.findAll").get();
        //2.判断Redis中是否存在数据
        if(null==userListJson) {
            List<User> all = userMapper.queryUserList();
            //4.将查询出的数据存储到redis缓存中
            ObjectMapper objectMapper = new ObjectMapper();
            userListJson = objectMapper.writeValueAsString(all);
            redisTemplate.boundValueOps("user.findAll").set(userListJson);
            System.out.println("从数据库中获取数据=============");
        } else {
            System.out.println("从redis缓存中获得数据==========");
        }
        System.out.println(userListJson);
    }

}

4.结果演示

这是第二次运行

可以看出，我们的redis整合成功了。

来源：CSDN

作者：暴力小气球

链接：https://blog.csdn.net/weixin_43287478/article/details/103473438