MyBatis junit 日志框架logback

JUnit是专门做单元测试的组件

<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.13.2</version>
<scope>test</scope>
</dependency>

pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">

    <modelVersion>4.0.0</modelVersion>

    <groupId>com.wsd</groupId>
    <artifactId>testmybatis</artifactId>
    <version>1.0</version>

    <dependencies>
        <!--mybatis核心依赖-->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.5.10</version>
        </dependency>

        <!--mysql驱动依赖-->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.30</version>
        </dependency>

        <!-- junit依赖 -->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.13.2</version>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.1</version>
                <configuration>
                    <source>17</source>
                    <target>17</target>
                </configuration>
            </plugin>
        </plugins>
    </build>

</project>

test:

package com.wsd;

import org.apache.ibatis.io.Resources;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder;
import org.junit.Test;

import java.io.InputStream;

/**
 * @program: spring_learn
 * @description: test
 * @author: Mr.Wang
 * @create: 2023-06-13 07:42
 **/
public class CarMapperTest {

    @Test
    public void testInsertCar(){
        SqlSession sqlSession = null;
        try {
            // 1.创建SqlSessionFactoryBuilder对象
            SqlSessionFactoryBuilder sqlSessionFactoryBuilder = new SqlSessionFactoryBuilder();
            // 2.创建SqlSessionFactory对象
            SqlSessionFactory sqlSessionFactory = sqlSessionFactoryBuilder.build(Resources.getResourceAsStream("mybatis-config.xml"));
            // 3.创建SqlSession对象
            sqlSession = sqlSessionFactory.openSession();
            // 4.执行SQL
            int count = sqlSession.insert("insertCar");
            System.out.println("更新了几条记录：" + count);
            // 5.提交
            sqlSession.commit();
        } catch (Exception e) {
            // 回滚
            if (sqlSession != null) {
                sqlSession.rollback();
            }
            e.printStackTrace();
        } finally {
            // 6.关闭
            if (sqlSession != null) {
                sqlSession.close();
            }
        }
    }
}

引入日志框架logback

引入日志框架的目的是为了看清楚mybatis执行的具体sql

mybatis – MyBatis 3 | 配置

指定 MyBatis 所用日志的具体实现

STDOUT_LOGGING 标准日志，由mybatis实现

<settings>
<setting name="logImpl" value="STDOUT_LOGGING" />
</settings>

mybatis-congif.xml:

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration
        PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
        "https://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
    <settings>
        <setting name="logImpl" value="STDOUT_LOGGING" />
    </settings>
    <environments default="development">
        <environment id="development">
            <transactionManager type="JDBC"/>
            <dataSource type="POOLED">
                <property name="driver" value="com.mysql.cj.jdbc.Driver"/>
                <property name="url" value="jdbc:mysql://localhost:3306/mybatis"/>
                <property name="username" value="root"/>
                <property name="password" value="root"/>
            </dataSource>
        </environment>
    </environments>
    <mappers>
        <mapper resource="CarMapper.xml"/>
    </mappers>
</configuration>

test:

SLF4J (一种日志标准)

logbak日志框架（实现了SLF4J）

引入依赖

<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<version>1.2.11</version>
<scope>test</scope>
</dependency>

pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">

    <modelVersion>4.0.0</modelVersion>

    <groupId>com.wsd</groupId>
    <artifactId>testmybatis</artifactId>
    <version>1.0</version>

    <dependencies>
        <!--mybatis核心依赖-->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.5.10</version>
        </dependency>

        <!--mysql驱动依赖-->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.30</version>
        </dependency>

        <!-- junit依赖 -->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.13.2</version>
            <scope>test</scope>
        </dependency>
        <!--logbak 日志框架 依赖-->
        <dependency>
            <groupId>ch.qos.logback</groupId>
            <artifactId>logback-classic</artifactId>
            <version>1.2.11</version>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.1</version>
                <configuration>
                    <source>17</source>
                    <target>17</target>
                </configuration>
            </plugin>
        </plugins>
    </build>

</project>

logback 需要配置文件

文件名： logback.xml OR logback-test.xml

位置：类路径根目录下

logback.xml

<?xml version="1.0" encoding="UTF-8"?>

<configuration debug="false">
    <!-- 控制台输出 -->
    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
        <encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
            <!--格式化输出：%d表示日期，%thread表示线程名，%-5level：级别从左显示5个字符宽度%msg：日志消息，%n是换行符-->
            <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} - %msg%n</pattern>
        </encoder>
    </appender>
    <!-- 按照每天生成日志文件 -->
    <appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <!--日志文件输出的文件名-->
            <FileNamePattern>${LOG_HOME}/TestWeb.log.%d{yyyy-MM-dd}.log</FileNamePattern>
            <!--日志文件保留天数-->
            <MaxHistory>30</MaxHistory>
        </rollingPolicy>
        <encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
            <!--格式化输出：%d表示日期，%thread表示线程名，%-5level：级别从左显示5个字符宽度%msg：日志消息，%n是换行符-->
            <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} - %msg%n</pattern>
        </encoder>
        <!--日志文件最大的大小-->
        <triggeringPolicy class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy">
            <MaxFileSize>100MB</MaxFileSize>
        </triggeringPolicy>
    </appender>

    <!--mybatis log configure-->
    <logger name="com.apache.ibatis" level="TRACE"/>
    <logger name="java.sql.Connection" level="DEBUG"/>
    <logger name="java.sql.Statement" level="DEBUG"/>
    <logger name="java.sql.PreparedStatement" level="DEBUG"/>

    <!-- 日志输出级别,logback日志级别包括五个：TRACE < DEBUG < INFO < WARN < ERROR -->
    <root level="DEBUG">
        <appender-ref ref="STDOUT"/>
        <appender-ref ref="FILE"/>
    </root>

</configuration>

CarMapper.xml:

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
        PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="car">
    <!--insert sql：保存一个汽车信息-->
    <insert id="insertCar">
        insert into t_car
            (id,car_num,brand,guide_price,produce_time,car_type)
        values
            (null,'102','皇风',40.30,'2024-10-05','新能源')
    </insert>
</mapper>

mybatis-config.xml

<?xml version="1.0" encoding="UTF-8" ?>
        <!DOCTYPE configuration
                PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
                "https://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
    <!--未指定时自动查找-->
<!--<settings>
    <setting name="logImpl" value="SLF4J" />
</settings>-->
<environments default="development">
    <environment id="development">
        <transactionManager type="JDBC"/>
        <dataSource type="POOLED">
            <property name="driver" value="com.mysql.cj.jdbc.Driver"/>
            <property name="url" value="jdbc:mysql://localhost:3306/mybatis"/>
            <property name="username" value="root"/>
            <property name="password" value="root"/>
        </dataSource>
    </environment>
</environments>
<mappers>
    <mapper resource="CarMapper.xml"/>
</mappers>
</configuration>

test:

package com.wsd;

import org.apache.ibatis.io.Resources;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder;
import org.junit.Test;

import java.io.InputStream;

/**
 * @program: spring_learn
 * @description: test
 * @author: Mr.Wang
 * @create: 2023-06-13 07:42
 **/
public class CarMapperTest {

    @Test
    public void testInsertCar(){
        SqlSession sqlSession = null;
        try {
            // 1.创建SqlSessionFactoryBuilder对象
            SqlSessionFactoryBuilder sqlSessionFactoryBuilder = new SqlSessionFactoryBuilder();
            // 2.创建SqlSessionFactory对象
            SqlSessionFactory sqlSessionFactory = sqlSessionFactoryBuilder.build(Resources.getResourceAsStream("mybatis-config.xml"));
            // 3.创建SqlSession对象
            sqlSession = sqlSessionFactory.openSession();
            // 4.执行SQL
            int count = sqlSession.insert("insertCar");
            System.out.println("更新了几条记录：" + count);
            // 5.提交
            sqlSession.commit();
        } catch (Exception e) {
            // 回滚
            if (sqlSession != null) {
                sqlSession.rollback();
            }
            e.printStackTrace();
        } finally {
            // 6.关闭
            if (sqlSession != null) {
                sqlSession.close();
            }
        }
    }
}

result:

"C:\Program Files\Java\jdk-17\bin\java.exe" -ea -Didea.test.cyclic.buffer.size=1048576 -Didea.launcher.port=53550 "-Didea.launcher.bin.path=C:\Minecloud\IDEA_2019\IntelliJ IDEA 2019.1\bin" -Dfile.encoding=UTF-8 -classpath "C:\Minecloud\IDEA_2019\IntelliJ IDEA 2019.1\lib\idea_rt.jar;C:\Minecloud\IDEA_2019\IntelliJ IDEA 2019.1\plugins\junit\lib\junit-rt.jar;C:\Minecloud\IDEA_2019\IntelliJ IDEA 2019.1\plugins\junit\lib\junit5-rt.jar;C:\Minecloud\IDEA_workspace\spring_learn\testmybatis\target\test-classes;C:\Minecloud\IDEA_workspace\spring_learn\testmybatis\target\classes;C:\Minecloud\maven_3.9\apache-maven-3.9.0\repo\org\mybatis\mybatis\3.5.10\mybatis-3.5.10.jar;C:\Minecloud\maven_3.9\apache-maven-3.9.0\repo\mysql\mysql-connector-java\8.0.30\mysql-connector-java-8.0.30.jar;C:\Minecloud\maven_3.9\apache-maven-3.9.0\repo\com\google\protobuf\protobuf-java\3.19.4\protobuf-java-3.19.4.jar;C:\Minecloud\maven_3.9\apache-maven-3.9.0\repo\junit\junit\4.13.2\junit-4.13.2.jar;C:\Minecloud\maven_3.9\apache-maven-3.9.0\repo\org\hamcrest\hamcrest-core\1.3\hamcrest-core-1.3.jar;C:\Minecloud\maven_3.9\apache-maven-3.9.0\repo\ch\qos\logback\logback-classic\1.2.11\logback-classic-1.2.11.jar;C:\Minecloud\maven_3.9\apache-maven-3.9.0\repo\ch\qos\logback\logback-core\1.2.11\logback-core-1.2.11.jar;C:\Minecloud\maven_3.9\apache-maven-3.9.0\repo\org\slf4j\slf4j-api\1.7.32\slf4j-api-1.7.32.jar" com.intellij.rt.execution.application.AppMainV2 com.intellij.rt.execution.junit.JUnitStarter -ideVersion5 -junit4 com.wsd.CarMapperTest,testInsertCar
2023-06-17 14:03:32.877 [main] DEBUG org.apache.ibatis.logging.LogFactory - Logging initialized using 'class org.apache.ibatis.logging.slf4j.Slf4jImpl' adapter.
2023-06-17 14:03:32.877 [main] DEBUG org.apache.ibatis.logging.LogFactory - Logging initialized using 'class org.apache.ibatis.logging.slf4j.Slf4jImpl' adapter.
2023-06-17 14:03:32.893 [main] DEBUG o.apache.ibatis.datasource.pooled.PooledDataSource - PooledDataSource forcefully closed/removed all connections.
2023-06-17 14:03:32.893 [main] DEBUG o.apache.ibatis.datasource.pooled.PooledDataSource - PooledDataSource forcefully closed/removed all connections.
2023-06-17 14:03:32.893 [main] DEBUG o.apache.ibatis.datasource.pooled.PooledDataSource - PooledDataSource forcefully closed/removed all connections.
2023-06-17 14:03:32.893 [main] DEBUG o.apache.ibatis.datasource.pooled.PooledDataSource - PooledDataSource forcefully closed/removed all connections.
2023-06-17 14:03:32.940 [main] DEBUG org.apache.ibatis.transaction.jdbc.JdbcTransaction - Opening JDBC Connection
2023-06-17 14:03:33.169 [main] DEBUG o.apache.ibatis.datasource.pooled.PooledDataSource - Created connection 252738640.
2023-06-17 14:03:33.171 [main] DEBUG org.apache.ibatis.transaction.jdbc.JdbcTransaction - Setting autocommit to false on JDBC Connection [com.mysql.cj.jdbc.ConnectionImpl@f107c50]
2023-06-17 14:03:33.176 [main] DEBUG car.insertCar - ==> Preparing: insert into t_car (id,car_num,brand,guide_price,produce_time,car_type) values (null,'102','皇风',40.30,'2024-10-05','新能源')
2023-06-17 14:03:33.211 [main] DEBUG car.insertCar - ==> Parameters:
2023-06-17 14:03:33.227 [main] DEBUG car.insertCar - <== Updates: 1
更新了几条记录：1
2023-06-17 14:03:33.227 [main] DEBUG org.apache.ibatis.transaction.jdbc.JdbcTransaction - Committing JDBC Connection [com.mysql.cj.jdbc.ConnectionImpl@f107c50]
2023-06-17 14:03:33.227 [main] DEBUG org.apache.ibatis.transaction.jdbc.JdbcTransaction - Resetting autocommit to true on JDBC Connection [com.mysql.cj.jdbc.ConnectionImpl@f107c50]
2023-06-17 14:03:33.227 [main] DEBUG org.apache.ibatis.transaction.jdbc.JdbcTransaction - Closing JDBC Connection [com.mysql.cj.jdbc.ConnectionImpl@f107c50]
2023-06-17 14:03:33.227 [main] DEBUG o.apache.ibatis.datasource.pooled.PooledDataSource - Returned connection 252738640 to pool.

Process finished with exit code 0

<FileNamePattern>${LOG_HOME}/TestWeb.log.%d{yyyy-MM-dd}.log</FileNamePattern>
LOG_HOME 没有指定，所以生成的 folder name is LOG_HOME_IS_UNDEFINED