Mybatis 开启控制台打印sql语句

框架1：SpringMVC

在mybatis-config.xml 配置文件里添加

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration
        PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
    <settings>
        <!-- 打印sql日志 -->
        <setting name="logImpl" value="STDOUT_LOGGING" />
    </settings>
</configuration>

框架2 SpringBoot +Mybatis

方法一：
appcation.yml中添加：

mybatis:
    configuration:
      log-impl: org.apache.ibatis.logging.stdout.StdOutImpl

方法二：

logging:
  level:
    com.lucifer.springboot.cache.mapper: debug

框架3 springboot+mybatis-plus

mybatis-plus:
  configuration:
    log-impl: org.apache.ibatis.logging.stdout.StdOutImpl