springboot快速入门-9.项目启动后读取数据库并放到Redis

在config文件夹中新建一个项目初始化类 InitConfig.java

代码如下

package com.example.demo.base.config;

import com.example.demo.love.entity.User;
import com.example.demo.love.mapper.UserMapper;
import com.example.demo.util.RedisUtil;
import org.springframework.boot.ApplicationArguments;
import org.springframework.boot.ApplicationRunner;
import org.springframework.context.annotation.Configuration;
import javax.annotation.Resource;

/**
 * 项目初始化类
 * @author DaenMax
 */
@Configuration
public class InitConfig  implements ApplicationRunner {
    @Resource
    private UserMapper userMapper;
    @Resource
    private RedisUtil redisUtil;

    @Override
    public void run(ApplicationArguments args) throws Exception {
        //此处仅是举例
        User user = userMapper.selectById("1");
        redisUtil.set(String.valueOf(user.getId()),user);
        User user1 = (User) redisUtil.get(String.valueOf(user.getId()));
        System.out.println("项目初始化成功，读取结果为：" + user1.getId() + "," + user1.getName());
    }
}

测试

然后按之前那样正常启动或者调试就好，运行结果如下