ssm整合后打印日志查看执行sql语句

Posted 2021-12-18 duguangming

mybatis.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>
        <!--打印日志可以看执行的sql语句-->
        <setting name="logImpl" value="STDOUT_LOGGING"/>
    </settings>
</configuration>

spring.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">

    <!--第一步，扫描service-->
    <context:component-scan base-package="com.guangming.service.impl"></context:component-scan>
    <!--第二步，加载jdbc.properties-->
    <context:property-placeholder location="classpath:jdbc.properties"></context:property-placeholder>
    <!--第三步，创建dbcp数据源连接池-->
    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
            <property name="driverClassName" value="$driver"></property>
            <property name="url" value="$url"></property>
            <property name="username" value="$user"></property>
            <property name="password" value="$password"></property>
    </bean>
    <!--第四步，创建mybatis的工厂类对象-->
    <bean class="org.mybatis.spring.SqlSessionFactoryBean">
        <!--指定数据源-->
        <property name="dataSource" ref="dataSource"></property>
        <!--加载mybatis的映射文件 在value中可以使用*号通配符-->
        <property name="mapperLocations" value="classpath:com/guangming/dao/*.xml"></property>
        <!--加载mybatis中的配置文件-->
        <property name="configLocation" value="classpath:mybatis.xml"></property>
    </bean>
    <!--第五步，在spring 的工厂中生成dao接口的实现类对象 -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <!--指定要扫描哪个包下面所有的dao接口-->
        <property name="basePackage" value="com.guangming.dao"></property>
    </bean>
    <!--第六步，创建spring的事物管理器-->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"></property>
    </bean>
    <!--第七步，声明以注解的方式配置声明式事物-->
    <tx:annotation-driven transaction-manager="transactionManager" ></tx:annotation-driven>

</beans>