Mybatis控制台打印sql

springboot集成mybatis

增加mybatis配置

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

spring集成mybatis

1、增加mybatis配置文件（mybatis-config.xml）

<?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>
        <!-- 打印查询语句 -->
        <setting name="logImpl" value="STDOUT_LOGGING" />
    </settings>
</configuration>

2、SqlSessionFactoryBean配置扫描mybatis-config.xml

<!-- spring和MyBatis整合-->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
    <property name="dataSource" ref="dataSource" />
    <!-- 自动扫描mybatis配置文件 -->
    <property name="configLocation" value="classpath:mybatis-config.xml"></property>
    <!-- 自动扫描mapping.xml文件 -->
    <property name="mapperLocations" value="classpath:com/merch/mapping/*.xml"></property>
</bean>