Mybatis：快速搭建Mybatis（2）

news2024/10/6 2:25:00

快速搭建Mybatis

  • 搭建Mybatis
    • 目录框架
    • 步骤一：创建Maven工程
    • 步骤二：创建mybatis的核心配置文件
    • 步骤三：创建mapper接口
    • 步骤四：创建Mybatis的映射文件
    • 步骤四：通过junit测试增删改查功能
    • 步骤五：加入logback日志功能
    • 进行测试

搭建Mybatis

目录框架

在这里插入图片描述

步骤一：创建Maven工程

在pom.xml中引入依赖

<dependencies>
	<!-- Mybatis核心 -->
	<dependency>
		<groupId>org.mybatis</groupId>
		<artifactId>mybatis</artifactId>
		<version>3.5.7</version>
	</dependency>
	<!-- junit测试 -->
	<dependency>
		<groupId>junit</groupId>
		<artifactId>junit</artifactId>
		<version>4.12</version>
		<scope>test</scope>
	</dependency>
	<!-- MySQL驱动 -->
	<dependency>
		<groupId>mysql</groupId>
		<artifactId>mysql-connector-java</artifactId>
		<version>5.1.3</version>
		</dependency>
</dependencies>

步骤二：创建mybatis的核心配置文件

习惯上命名为mybatis-config.xml，这个文件名仅仅只是建议，并非强制要求。将来整合Spring之后，这个配置文件可以省略，所以大家操作时可以直接复制、粘贴。

  1. 核心配置文件主要用于配置连接数据库的环境以及MyBatis的全局配置信息
  2. 核心配置文件存放的位置是src/main/resources目录下
<?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>  
	<!--设置连接数据库的环境-->  
	<environments default="development">  
		<environment id="development">  
			<transactionManager type="JDBC"/>  
			<dataSource type="POOLED">  
				<property name="driver" value="com.mysql.jdbc.Driver"/>  
				<property name="url" value="jdbc:mysql://localhost:3306/mybatis?useSSL=false&useUnicode=true&characterEncoding=UTF-8&serverTimezone=GMT%2B8"/>  
				<property name="username" value="root"/>  
				<property name="password" value="1234"/>  
			</dataSource>  
		</environment>  
	</environments>  
	<!--引入映射文件-->  
	<mappers>  
		<mapper resource="mappers/UserMapper.xml"/>  
	</mappers>  
</configuration>

步骤三：创建mapper接口

MyBatis中的mapper接口相当于以前的dao。但是区别在于，mapper仅仅是接口，我们不需要提供实现类

package com.atguigu.mapper;

import com.atguigu.pojo.User;

import java.util.List;

/**
 * @Author Mr.Lu
 * @Date 2022/11/26 16:45
 * @ClassName UserMapper
 * @Version 1.0
 * 相当于dao层，数据库表为t_user，那么实体类就是User,
 * 对应的dao层或者mapper层为UserDao或者UserMapper
 */

public interface UserMapper {
    /**
     * MyBatis面向接口编程的两个一致:
     * 1、映射文件(xxxMapper.xml)的namespace要和mapper层(dao层)接口的全类名保持一致;
     * 2、映射文件(xxxMapper.xml)中SQL语句的id要和mapper层接口中的方法名一致;
     * @return
     */

    /**
     * 添加用户的信息
     * @return
     */
    int insertUser();

    /**
     * 更新用户信息
     * @param id
     * @return
     */
    int updateUser(int id);

    /**
     * 根据id删除用户信息
     * @param id
     * @return
     */
    int deleteUser(int id);


    /**
     * 根据id查询用户数据
     * @param id
     * @return
     */
    User selectById(int id);

    /**
     * 查询数据库所有信息
     * @return
     */
    List<User> selectAll();
}

步骤四：创建Mybatis的映射文件

  • 相关概念：ORM（Object Relationship Mapping）对象关系映射。
  • 对象：Java的实体类对象
    • 关系：关系型数据库
    • 映射：二者之间的对应关系
Java概念数据库概念
类表
属性字段/列
对象记录/行
  • 映射文件的命名规则
  • 表所对应的实体类的类名+Mapper.xml
    • 例如：表t_user，映射的实体类为User，所对应的映射文件为UserMapper.xml
    • 因此一个映射文件对应一个实体类，对应一张表的操作
    • MyBatis映射文件用于编写SQL，访问以及操作表中的数据
    • MyBatis映射文件存放的位置是src/main/resources/mappers目录下
  • MyBatis中可以面向接口操作数据，要保证两个一致
  • mapper接口的全类名和映射文件的命名空间(namespace)保持一致
    • mapper接口中方法的方法名和映射文件中编写SQL的标签的id属性保持一致
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
        PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
        "https://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.atguigu.mapper.UserMapper">

   <!-- int insertUser() -->
    <insert id="insertUser">
        insert into t_user values(null, 'lsm', '1234', 20, '男', '3108763627@.com')
    </insert>

    <!-- int updateUser(int id) -->
    <update id="updateUser">
        update t_user set username = 'lsm_yxy', age = 30, email = '123456678@.com' where id = 5
    </update>

    <!-- int deleteUser(int id) -->
    <update id="deleteUser">
        delete from t_user where id = 10
    </update>

     <!--
      1. 查询的标签select必须设置属性resultType或resultMap，用于设置实体类和数据库表的映射关系
	    - resultType：自动映射，用于 ====属性名和表中字段名一致===== 的情况
	    - resultMap：自定义映射，用于 ====一对多或多对一或字段名和属性名不一致===== 的情况
      2. 当查询的数据为多条时，不能使用实体类作为返回值，只能使用集合，否则会抛出异常TooManyResultsException；
         但是若查询的数据只有一条，可以使用实体类或集合作为返回值-->
    <select id="selectById" resultType="com.atguigu.pojo.User">
        select * from t_user where id = 5;
    </select>

    <!-- 已经在mybatis-config.xml中的typeAliases标签内起别名 com.atguigu.pojo.User == User-->
    <select id="selectAll" resultType="com.atguigu.pojo.User">
        select * from t_user;
    </select>
    
</mapper>

步骤四：通过junit测试增删改查功能

  • SqlSession：代表Java程序和数据库之间的会话。（HttpSession是Java程序和浏览器之间的会话）
  • SqlSessionFactory：是“生产”SqlSession的“工厂”
  • 工厂模式：如果创建某一个对象，使用的过程基本固定，那么我们就可以把创建这个对象的相关代码封装到一个“工厂类”中，以后都使用这个工厂类来“生产”我们需要的对象
package com.atguigu.test;

import com.atguigu.mapper.UserMapper;
import com.atguigu.pojo.User;
import com.atguigu.util.GetSqlSession;
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.IOException;
import java.io.InputStream;
import java.util.List;

/**
 * @Author Mr.Lu
 * @Date 2022/11/26 20:06
 * @ClassName MybatisTest
 * @Version 1.0
 */
public class MybatisTest {
  @Test
    public void testMybatis() throws IOException {
        // 加载核心配置文件
        InputStream inputStream = Resources.getResourceAsStream("mybatis-config.xml");
        // 通过工厂建造对象SqlSessionFactoryBuilder获取sqlSessionFactory
        SqlSessionFactory sqlSessionFactory =
                new SqlSessionFactoryBuilder().build(inputStream);
        // 获取sqlSession，此时通过SqlSession对象所操作的sql都必须手动提交或回滚事务,要不然提交失败，数据库不会发生变化
//         SqlSession sqlSession = sqlSessionFactory.openSession();
        // 创建SqlSession对象，此时通过SqlSession对象所操作的sql都会自动提交
         SqlSession sqlSession = sqlSessionFactory.openSession(true);

        // 通过代理模式创建UserMapper接口的代理实现类对象
        UserMapper userMapper = sqlSession.getMapper(UserMapper.class);

        // 调用UserMapper接口中的方法，就可以根据UserMapper的全类名匹配元素文件，
        // 通过调用的方法名匹配映射文件中的SQL标签，并执行标签中的SQL语句

        // 插入语句
        // int count = userMapper.insertUser();

        // 更新语句
        // int count = userMapper.updateUser(5);

        // 删除语句
        // int count = userMapper.deleteUser(6);

        // 根据id查询用户信息
        // User user = userMapper.selectById(5);
        // System.out.println(user);

        // 查询所有
        List<User> users = userMapper.selectAll();
        for(User user : users){
            System.out.println(user);
        }

        // 提交事务，与上面一一对应，如果设置为true，则下面这一行不需要
        // sqlSession.commit();

        // 关闭
        sqlSession.close();
    }
    
    @Test
    public void testInsertUser() throws IOException {
        System.out.println("测试插入函数.................");
        SqlSession sqlSession = GetSqlSession.getSqlSession();
        UserMapper userMapper = sqlSession.getMapper(UserMapper.class);
        int count = userMapper.insertUser();
        System.out.println(count);
        sqlSession.close();
    }

    @Test
    public void testUpdateUser() throws IOException {
        System.out.println("测试更新函数.................");
        SqlSession sqlSession = GetSqlSession.getSqlSession();
        UserMapper userMapper = sqlSession.getMapper(UserMapper.class);
        int count = userMapper.updateUser(5);
        System.out.println(count);
        sqlSession.close();
    }

    @Test
    public void testDeleteUser() throws IOException {
        System.out.println("测试删除函数.................");
        SqlSession sqlSession = GetSqlSession.getSqlSession();
        UserMapper userMapper = sqlSession.getMapper(UserMapper.class);
        int count = userMapper.deleteUser(10);
        System.out.println(count);
        sqlSession.close();
    }

    @Test
    public void testSelectById() throws IOException {
        System.out.println("测试查询函数.................");
        SqlSession sqlSession = GetSqlSession.getSqlSession();
        UserMapper userMapper = sqlSession.getMapper(UserMapper.class);
        User user = userMapper.selectById(5);
        System.out.println(user);
        sqlSession.close();
    }

    @Test
    public void testSelectAll() throws IOException {
        System.out.println("测试查询所有函数.................");
        SqlSession sqlSession = GetSqlSession.getSqlSession();
        UserMapper userMapper = sqlSession.getMapper(UserMapper.class);
        List<User> users = userMapper.selectAll();
        for(User user : users){
            System.out.println(user);
        }
        sqlSession.close();
    }
}
  • 此时需要手动提交事务，如果要自动提交事务，则在获取sqlSession对象时，使用SqlSession sqlSession = sqlSessionFactory.openSession(true);，传入一个Boolean类型的参数，值为true，这样就可以自动提交

步骤五：加入logback日志功能

  1. 加入依赖
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>1.2.17</version>
        </dependency>
  1. 加入logback.xml
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
    <!--
        CONSOLE（console控制台） ：表示当前的日志信息是可以输出到控制台的。
    -->
    <appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
        <!--输出流对象 默认 System.out 改为 System.err（打印红色）-->
        <target>System.err</target>
        <encoder>
            <!--格式化输出：
                %d%d{yyyy-MM-dd HH:mm:ss.SSS}：表示日期(2022-04-15 13:37:38.600)
                %-5level：级别从左显示5个字符宽度([INFO ], [TRACE])
                %c: 类名（Test.class）
                %thread：表示线程名([main])
                %msg：日志消息;
                %n: 是换行符
             -->
            <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%-5level]  %c [%thread] : %msg%n</pattern>
        </encoder>
    </appender>

    <!--
        appender中的name命名设置打印在那里(name = "FILE"是打印在文件中， name = "CONSOLE"是打印在控制台中)
        File(文件)：是输出的方向通向文件的
    -->
    <appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <encoder>
            <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern>
            <charset>utf-8</charset>
        </encoder>
        <!--日志输出路径-->
        <file>E:/code/itheima-data.log</file>
        <!--指定日志文件拆分和压缩规则-->
        <rollingPolicy
                class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy">
            <!--通过指定压缩文件名称，来确定分割文件方式-->
            <fileNamePattern>E:/code/itheima-data2-%d{yyyy-MM-dd}.log%i.rar</fileNamePattern>
            <!--文件拆分大小-->
            <maxFileSize>1MB</maxFileSize>
        </rollingPolicy>
    </appender>

    <!--
    level:用来设置打印级别，大小写无关：TRACE < DEBUG < INFO < WARN < ERROR  |    ALL(打印所有的日志) 和 OFF(关闭，不打印日志)
   ， 默认debug
    <root>可以包含零个或多个<appender-ref>元素，标识这个输出位置将会被本日志级别控制。
    -->
    <root level="DEBUG">
        <appender-ref ref="CONSOLE"/>  <!-- 关联：可以在控制台进行输出，如果没有这一项，不会在控制台输出-->
        <appender-ref ref="FILE"/>
    </root>
</configuration>

进行测试

E:\IDEA_includeJDK\jdk1.8.0_25\bin\java.exe -ea -Didea.test.cyclic.buffer.size=1048576 "-javaagent:F:\IDEA\IntelliJ IDEA 2021.1.1\lib\idea_rt.jar=2823:F:\IDEA\IntelliJ IDEA 2021.1.1\bin" -Dfile.encoding=UTF-8 -classpath "F:\IDEA\IntelliJ IDEA 2021.1.1\lib\idea_rt.jar;F:\IDEA\IntelliJ IDEA 2021.1.1\plugins\junit\lib\junit5-rt.jar;F:\IDEA\IntelliJ IDEA 2021.1.1\plugins\junit\lib\junit-rt.jar;E:\IDEA_includeJDK\jdk1.8.0_25\jre\lib\charsets.jar;E:\IDEA_includeJDK\jdk1.8.0_25\jre\lib\deploy.jar;E:\IDEA_includeJDK\jdk1.8.0_25\jre\lib\ext\access-bridge-64.jar;E:\IDEA_includeJDK\jdk1.8.0_25\jre\lib\ext\cldrdata.jar;E:\IDEA_includeJDK\jdk1.8.0_25\jre\lib\ext\dnsns.jar;E:\IDEA_includeJDK\jdk1.8.0_25\jre\lib\ext\jaccess.jar;E:\IDEA_includeJDK\jdk1.8.0_25\jre\lib\ext\jfxrt.jar;E:\IDEA_includeJDK\jdk1.8.0_25\jre\lib\ext\localedata.jar;E:\IDEA_includeJDK\jdk1.8.0_25\jre\lib\ext\nashorn.jar;E:\IDEA_includeJDK\jdk1.8.0_25\jre\lib\ext\sunec.jar;E:\IDEA_includeJDK\jdk1.8.0_25\jre\lib\ext\sunjce_provider.jar;E:\IDEA_includeJDK\jdk1.8.0_25\jre\lib\ext\sunmscapi.jar;E:\IDEA_includeJDK\jdk1.8.0_25\jre\lib\ext\sunpkcs11.jar;E:\IDEA_includeJDK\jdk1.8.0_25\jre\lib\ext\zipfs.jar;E:\IDEA_includeJDK\jdk1.8.0_25\jre\lib\javaws.jar;E:\IDEA_includeJDK\jdk1.8.0_25\jre\lib\jce.jar;E:\IDEA_includeJDK\jdk1.8.0_25\jre\lib\jfr.jar;E:\IDEA_includeJDK\jdk1.8.0_25\jre\lib\jfxswt.jar;E:\IDEA_includeJDK\jdk1.8.0_25\jre\lib\jsse.jar;E:\IDEA_includeJDK\jdk1.8.0_25\jre\lib\management-agent.jar;E:\IDEA_includeJDK\jdk1.8.0_25\jre\lib\plugin.jar;E:\IDEA_includeJDK\jdk1.8.0_25\jre\lib\resources.jar;E:\IDEA_includeJDK\jdk1.8.0_25\jre\lib\rt.jar;D:\mybatisProject\mybaits_01_quickstart\target\test-classes;D:\mybatisProject\mybaits_01_quickstart\target\classes;D:\apache-maven-3.6.1\mvn_resp\log4j\log4j\1.2.17\log4j-1.2.17.jar;D:\apache-maven-3.6.1\mvn_resp\ch\qos\logback\logback-classic\1.2.11\logback-classic-1.2.11.jar;D:\apache-maven-3.6.1\mvn_resp\ch\qos\logback\logback-core\1.2.11\logback-core-1.2.11.jar;D:\apache-maven-3.6.1\mvn_resp\org\slf4j\slf4j-api\1.7.32\slf4j-api-1.7.32.jar;D:\apache-maven-3.6.1\mvn_resp\org\mybatis\mybatis\3.5.6\mybatis-3.5.6.jar;D:\apache-maven-3.6.1\mvn_resp\junit\junit\4.12\junit-4.12.jar;D:\apache-maven-3.6.1\mvn_resp\org\hamcrest\hamcrest-core\1.3\hamcrest-core-1.3.jar;D:\apache-maven-3.6.1\mvn_resp\mysql\mysql-connector-java\8.0.20\mysql-connector-java-8.0.20.jar;D:\apache-maven-3.6.1\mvn_resp\com\google\protobuf\protobuf-java\3.6.1\protobuf-java-3.6.1.jar" com.intellij.rt.junit.JUnitStarter -ideVersion5 -junit4 com.atguigu.test.MybatisTest
测试查询所有函数.................
2022-11-29 15:28:09.117 [DEBUG]  org.apache.ibatis.logging.LogFactory [main] : Logging initialized using 'class org.apache.ibatis.logging.slf4j.Slf4jImpl' adapter.
2022-11-29 15:28:09.127 [DEBUG]  org.apache.ibatis.io.VFS [main] : Class not found: org.jboss.vfs.VFS
2022-11-29 15:28:09.127 [DEBUG]  org.apache.ibatis.io.JBoss6VFS [main] : JBoss 6 VFS API is not available in this environment.
2022-11-29 15:28:09.127 [DEBUG]  org.apache.ibatis.io.VFS [main] : Class not found: org.jboss.vfs.VirtualFile
2022-11-29 15:28:09.132 [DEBUG]  org.apache.ibatis.io.VFS [main] : VFS implementation org.apache.ibatis.io.JBoss6VFS is not valid in this environment.
2022-11-29 15:28:09.132 [DEBUG]  org.apache.ibatis.io.VFS [main] : Using VFS adapter org.apache.ibatis.io.DefaultVFS
2022-11-29 15:28:09.132 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Find JAR URL: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/pojo
2022-11-29 15:28:09.132 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Not a JAR: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/pojo
2022-11-29 15:28:09.182 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Reader entry: User.class
2022-11-29 15:28:09.182 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Listing file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/pojo
2022-11-29 15:28:09.182 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Find JAR URL: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/pojo/User.class
2022-11-29 15:28:09.182 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Not a JAR: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/pojo/User.class
2022-11-29 15:28:09.182 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Reader entry: ����   4 Q
2022-11-29 15:28:09.187 [DEBUG]  org.apache.ibatis.io.ResolverUtil [main] : Checking to see if class com.atguigu.pojo.User matches criteria [is assignable to Object]
2022-11-29 15:28:09.236 [DEBUG]  org.apache.ibatis.datasource.pooled.PooledDataSource [main] : PooledDataSource forcefully closed/removed all connections.
2022-11-29 15:28:09.236 [DEBUG]  org.apache.ibatis.datasource.pooled.PooledDataSource [main] : PooledDataSource forcefully closed/removed all connections.
2022-11-29 15:28:09.236 [DEBUG]  org.apache.ibatis.datasource.pooled.PooledDataSource [main] : PooledDataSource forcefully closed/removed all connections.
2022-11-29 15:28:09.236 [DEBUG]  org.apache.ibatis.datasource.pooled.PooledDataSource [main] : PooledDataSource forcefully closed/removed all connections.
2022-11-29 15:28:09.241 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Find JAR URL: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/mapper
2022-11-29 15:28:09.241 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Not a JAR: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/mapper
2022-11-29 15:28:09.247 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Reader entry: UserMapper.class
2022-11-29 15:28:09.247 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Reader entry: UserMapper.xml
2022-11-29 15:28:09.247 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Listing file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/mapper
2022-11-29 15:28:09.247 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Find JAR URL: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/mapper/UserMapper.class
2022-11-29 15:28:09.247 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Not a JAR: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/mapper/UserMapper.class
2022-11-29 15:28:09.247 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Reader entry: ����   4    
2022-11-29 15:28:09.247 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Find JAR URL: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/mapper/UserMapper.xml
2022-11-29 15:28:09.247 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Not a JAR: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/mapper/UserMapper.xml
2022-11-29 15:28:09.247 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Reader entry: <?xml version="1.0" encoding="UTF-8" ?>
2022-11-29 15:28:09.247 [DEBUG]  org.apache.ibatis.io.ResolverUtil [main] : Checking to see if class com.atguigu.mapper.UserMapper matches criteria [is assignable to Object]
2022-11-29 15:28:09.353 [DEBUG]  org.apache.ibatis.transaction.jdbc.JdbcTransaction [main] : Opening JDBC Connection
2022-11-29 15:28:09.561 [DEBUG]  org.apache.ibatis.datasource.pooled.PooledDataSource [main] : Created connection 195228908.
2022-11-29 15:28:09.566 [DEBUG]  com.atguigu.mapper.UserMapper.selectAll [main] : ==>  Preparing: select * from t_user;
2022-11-29 15:28:09.606 [DEBUG]  com.atguigu.mapper.UserMapper.selectAll [main] : ==> Parameters: 
2022-11-29 15:28:09.636 [DEBUG]  com.atguigu.mapper.UserMapper.selectAll [main] : <==      Total: 11
User{id=5, username='lsm_yxy', password='123456', age=30, sex='女', email='123456678@.com'}
User{id=7, username='lsm1', password='1234', age=20, sex='男', email='3108763627@.com'}
User{id=8, username='lsm2', password='1234', age=20, sex='男', email='3108763627@.com'}
User{id=9, username='lsm3', password='1234', age=20, sex='男', email='3108763627@.com'}
User{id=11, username='lsm4', password='1234', age=20, sex='男', email='3108763627@.com'}
User{id=12, username='lsm5', password='1234', age=20, sex='男', email='3108763627@.com'}
User{id=13, username='lsm6', password='1234', age=20, sex='男', email='3108763627@.com'}
User{id=14, username='lsm7', password='1234', age=20, sex='男', email='3108763627@.com'}
User{id=15, username='tom', password='root', age=10, sex='男', email='123456@.com'}
User{id=16, username='Tom', password='root', age=10, sex='男', email='123456@.com'}
User{id=17, username='lsm', password='1234', age=20, sex='男', email='3108763627@.com'}
2022-11-29 15:28:09.646 [DEBUG]  org.apache.ibatis.transaction.jdbc.JdbcTransaction [main] : Closing JDBC Connection [com.mysql.cj.jdbc.ConnectionImpl@ba2f4ec]
2022-11-29 15:28:09.646 [DEBUG]  org.apache.ibatis.datasource.pooled.PooledDataSource [main] : Returned connection 195228908 to pool.
测试更新函数.................
2022-11-29 15:28:09.646 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Find JAR URL: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/pojo
2022-11-29 15:28:09.646 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Not a JAR: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/pojo
2022-11-29 15:28:09.657 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Reader entry: User.class
2022-11-29 15:28:09.657 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Listing file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/pojo
2022-11-29 15:28:09.657 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Find JAR URL: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/pojo/User.class
2022-11-29 15:28:09.657 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Not a JAR: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/pojo/User.class
2022-11-29 15:28:09.657 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Reader entry: ����   4 Q
2022-11-29 15:28:09.657 [DEBUG]  org.apache.ibatis.io.ResolverUtil [main] : Checking to see if class com.atguigu.pojo.User matches criteria [is assignable to Object]
2022-11-29 15:28:09.657 [DEBUG]  org.apache.ibatis.datasource.pooled.PooledDataSource [main] : PooledDataSource forcefully closed/removed all connections.
2022-11-29 15:28:09.657 [DEBUG]  org.apache.ibatis.datasource.pooled.PooledDataSource [main] : PooledDataSource forcefully closed/removed all connections.
2022-11-29 15:28:09.657 [DEBUG]  org.apache.ibatis.datasource.pooled.PooledDataSource [main] : PooledDataSource forcefully closed/removed all connections.
2022-11-29 15:28:09.657 [DEBUG]  org.apache.ibatis.datasource.pooled.PooledDataSource [main] : PooledDataSource forcefully closed/removed all connections.
2022-11-29 15:28:09.657 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Find JAR URL: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/mapper
2022-11-29 15:28:09.657 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Not a JAR: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/mapper
2022-11-29 15:28:09.657 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Reader entry: UserMapper.class
2022-11-29 15:28:09.657 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Reader entry: UserMapper.xml
2022-11-29 15:28:09.657 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Listing file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/mapper
2022-11-29 15:28:09.657 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Find JAR URL: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/mapper/UserMapper.class
2022-11-29 15:28:09.657 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Not a JAR: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/mapper/UserMapper.class
2022-11-29 15:28:09.657 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Reader entry: ����   4    
2022-11-29 15:28:09.666 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Find JAR URL: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/mapper/UserMapper.xml
2022-11-29 15:28:09.666 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Not a JAR: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/mapper/UserMapper.xml
2022-11-29 15:28:09.666 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Reader entry: <?xml version="1.0" encoding="UTF-8" ?>
2022-11-29 15:28:09.666 [DEBUG]  org.apache.ibatis.io.ResolverUtil [main] : Checking to see if class com.atguigu.mapper.UserMapper matches criteria [is assignable to Object]
2022-11-29 15:28:09.682 [DEBUG]  org.apache.ibatis.transaction.jdbc.JdbcTransaction [main] : Opening JDBC Connection
2022-11-29 15:28:09.687 [DEBUG]  org.apache.ibatis.datasource.pooled.PooledDataSource [main] : Created connection 954702563.
2022-11-29 15:28:09.687 [DEBUG]  com.atguigu.mapper.UserMapper.updateUser [main] : ==>  Preparing: update t_user set username = 'lsm_yxy', age = 30, email = '123456678@.com' where id = 5
2022-11-29 15:28:09.687 [DEBUG]  com.atguigu.mapper.UserMapper.updateUser [main] : ==> Parameters: 
2022-11-29 15:28:09.697 [DEBUG]  com.atguigu.mapper.UserMapper.updateUser [main] : <==    Updates: 1
1
2022-11-29 15:28:09.702 [DEBUG]  org.apache.ibatis.transaction.jdbc.JdbcTransaction [main] : Closing JDBC Connection [com.mysql.cj.jdbc.ConnectionImpl@38e79ae3]
2022-11-29 15:28:09.702 [DEBUG]  org.apache.ibatis.datasource.pooled.PooledDataSource [main] : Returned connection 954702563 to pool.
测试插入函数.................
2022-11-29 15:28:09.707 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Find JAR URL: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/pojo
2022-11-29 15:28:09.712 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Not a JAR: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/pojo
2022-11-29 15:28:09.712 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Reader entry: User.class
2022-11-29 15:28:09.712 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Listing file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/pojo
2022-11-29 15:28:09.712 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Find JAR URL: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/pojo/User.class
2022-11-29 15:28:09.712 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Not a JAR: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/pojo/User.class
2022-11-29 15:28:09.712 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Reader entry: ����   4 Q
2022-11-29 15:28:09.712 [DEBUG]  org.apache.ibatis.io.ResolverUtil [main] : Checking to see if class com.atguigu.pojo.User matches criteria [is assignable to Object]
2022-11-29 15:28:09.717 [DEBUG]  org.apache.ibatis.datasource.pooled.PooledDataSource [main] : PooledDataSource forcefully closed/removed all connections.
2022-11-29 15:28:09.717 [DEBUG]  org.apache.ibatis.datasource.pooled.PooledDataSource [main] : PooledDataSource forcefully closed/removed all connections.
2022-11-29 15:28:09.717 [DEBUG]  org.apache.ibatis.datasource.pooled.PooledDataSource [main] : PooledDataSource forcefully closed/removed all connections.
2022-11-29 15:28:09.717 [DEBUG]  org.apache.ibatis.datasource.pooled.PooledDataSource [main] : PooledDataSource forcefully closed/removed all connections.
2022-11-29 15:28:09.718 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Find JAR URL: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/mapper
2022-11-29 15:28:09.718 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Not a JAR: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/mapper
2022-11-29 15:28:09.718 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Reader entry: UserMapper.class
2022-11-29 15:28:09.718 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Reader entry: UserMapper.xml
2022-11-29 15:28:09.718 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Listing file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/mapper
2022-11-29 15:28:09.718 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Find JAR URL: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/mapper/UserMapper.class
2022-11-29 15:28:09.718 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Not a JAR: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/mapper/UserMapper.class
2022-11-29 15:28:09.718 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Reader entry: ����   4    
2022-11-29 15:28:09.718 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Find JAR URL: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/mapper/UserMapper.xml
2022-11-29 15:28:09.718 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Not a JAR: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/mapper/UserMapper.xml
2022-11-29 15:28:09.718 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Reader entry: <?xml version="1.0" encoding="UTF-8" ?>
2022-11-29 15:28:09.718 [DEBUG]  org.apache.ibatis.io.ResolverUtil [main] : Checking to see if class com.atguigu.mapper.UserMapper matches criteria [is assignable to Object]
2022-11-29 15:28:09.731 [DEBUG]  org.apache.ibatis.transaction.jdbc.JdbcTransaction [main] : Opening JDBC Connection
2022-11-29 15:28:09.736 [DEBUG]  org.apache.ibatis.datasource.pooled.PooledDataSource [main] : Created connection 365590665.
2022-11-29 15:28:09.736 [DEBUG]  com.atguigu.mapper.UserMapper.insertUser [main] : ==>  Preparing: insert into t_user values(null, 'lsm', '1234', 20, '男', '3108763627@.com')
2022-11-29 15:28:09.736 [DEBUG]  com.atguigu.mapper.UserMapper.insertUser [main] : ==> Parameters: 
2022-11-29 15:28:09.747 [DEBUG]  com.atguigu.mapper.UserMapper.insertUser [main] : <==    Updates: 1
1
2022-11-29 15:28:09.747 [DEBUG]  org.apache.ibatis.transaction.jdbc.JdbcTransaction [main] : Closing JDBC Connection [com.mysql.cj.jdbc.ConnectionImpl@15ca7889]
2022-11-29 15:28:09.747 [DEBUG]  org.apache.ibatis.datasource.pooled.PooledDataSource [main] : Returned connection 365590665 to pool.
测试测试函数.................
2022-11-29 15:28:09.757 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Find JAR URL: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/pojo
2022-11-29 15:28:09.757 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Not a JAR: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/pojo
2022-11-29 15:28:09.757 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Reader entry: User.class
2022-11-29 15:28:09.757 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Listing file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/pojo
2022-11-29 15:28:09.757 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Find JAR URL: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/pojo/User.class
2022-11-29 15:28:09.757 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Not a JAR: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/pojo/User.class
2022-11-29 15:28:09.757 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Reader entry: ����   4 Q
2022-11-29 15:28:09.757 [DEBUG]  org.apache.ibatis.io.ResolverUtil [main] : Checking to see if class com.atguigu.pojo.User matches criteria [is assignable to Object]
2022-11-29 15:28:09.757 [DEBUG]  org.apache.ibatis.datasource.pooled.PooledDataSource [main] : PooledDataSource forcefully closed/removed all connections.
2022-11-29 15:28:09.757 [DEBUG]  org.apache.ibatis.datasource.pooled.PooledDataSource [main] : PooledDataSource forcefully closed/removed all connections.
2022-11-29 15:28:09.757 [DEBUG]  org.apache.ibatis.datasource.pooled.PooledDataSource [main] : PooledDataSource forcefully closed/removed all connections.
2022-11-29 15:28:09.757 [DEBUG]  org.apache.ibatis.datasource.pooled.PooledDataSource [main] : PooledDataSource forcefully closed/removed all connections.
2022-11-29 15:28:09.766 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Find JAR URL: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/mapper
2022-11-29 15:28:09.766 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Not a JAR: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/mapper
2022-11-29 15:28:09.766 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Reader entry: UserMapper.class
2022-11-29 15:28:09.766 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Reader entry: UserMapper.xml
2022-11-29 15:28:09.766 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Listing file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/mapper
2022-11-29 15:28:09.766 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Find JAR URL: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/mapper/UserMapper.class
2022-11-29 15:28:09.766 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Not a JAR: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/mapper/UserMapper.class
2022-11-29 15:28:09.766 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Reader entry: ����   4    
2022-11-29 15:28:09.766 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Find JAR URL: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/mapper/UserMapper.xml
2022-11-29 15:28:09.766 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Not a JAR: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/mapper/UserMapper.xml
2022-11-29 15:28:09.766 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Reader entry: <?xml version="1.0" encoding="UTF-8" ?>
2022-11-29 15:28:09.766 [DEBUG]  org.apache.ibatis.io.ResolverUtil [main] : Checking to see if class com.atguigu.mapper.UserMapper matches criteria [is assignable to Object]
2022-11-29 15:28:09.776 [DEBUG]  org.apache.ibatis.transaction.jdbc.JdbcTransaction [main] : Opening JDBC Connection
2022-11-29 15:28:09.787 [DEBUG]  org.apache.ibatis.datasource.pooled.PooledDataSource [main] : Created connection 793138072.
2022-11-29 15:28:09.787 [DEBUG]  com.atguigu.mapper.UserMapper.deleteUser [main] : ==>  Preparing: delete from t_user where id = 10
2022-11-29 15:28:09.787 [DEBUG]  com.atguigu.mapper.UserMapper.deleteUser [main] : ==> Parameters: 
2022-11-29 15:28:09.792 [DEBUG]  com.atguigu.mapper.UserMapper.deleteUser [main] : <==    Updates: 0
0
2022-11-29 15:28:09.792 [DEBUG]  org.apache.ibatis.transaction.jdbc.JdbcTransaction [main] : Closing JDBC Connection [com.mysql.cj.jdbc.ConnectionImpl@2f465398]
2022-11-29 15:28:09.792 [DEBUG]  org.apache.ibatis.datasource.pooled.PooledDataSource [main] : Returned connection 793138072 to pool.
2022-11-29 15:28:09.802 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Find JAR URL: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/pojo
2022-11-29 15:28:09.802 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Not a JAR: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/pojo
2022-11-29 15:28:09.802 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Reader entry: User.class
2022-11-29 15:28:09.802 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Listing file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/pojo
2022-11-29 15:28:09.802 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Find JAR URL: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/pojo/User.class
2022-11-29 15:28:09.802 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Not a JAR: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/pojo/User.class
2022-11-29 15:28:09.802 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Reader entry: ����   4 Q
2022-11-29 15:28:09.802 [DEBUG]  org.apache.ibatis.io.ResolverUtil [main] : Checking to see if class com.atguigu.pojo.User matches criteria [is assignable to Object]
2022-11-29 15:28:09.807 [DEBUG]  org.apache.ibatis.datasource.pooled.PooledDataSource [main] : PooledDataSource forcefully closed/removed all connections.
2022-11-29 15:28:09.807 [DEBUG]  org.apache.ibatis.datasource.pooled.PooledDataSource [main] : PooledDataSource forcefully closed/removed all connections.
2022-11-29 15:28:09.807 [DEBUG]  org.apache.ibatis.datasource.pooled.PooledDataSource [main] : PooledDataSource forcefully closed/removed all connections.
2022-11-29 15:28:09.807 [DEBUG]  org.apache.ibatis.datasource.pooled.PooledDataSource [main] : PooledDataSource forcefully closed/removed all connections.
2022-11-29 15:28:09.818 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Find JAR URL: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/mapper
2022-11-29 15:28:09.818 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Not a JAR: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/mapper
2022-11-29 15:28:09.822 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Reader entry: UserMapper.class
2022-11-29 15:28:09.822 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Reader entry: UserMapper.xml
2022-11-29 15:28:09.822 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Listing file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/mapper
2022-11-29 15:28:09.822 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Find JAR URL: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/mapper/UserMapper.class
2022-11-29 15:28:09.822 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Not a JAR: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/mapper/UserMapper.class
2022-11-29 15:28:09.822 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Reader entry: ����   4    
2022-11-29 15:28:09.822 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Find JAR URL: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/mapper/UserMapper.xml
2022-11-29 15:28:09.822 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Not a JAR: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/mapper/UserMapper.xml
2022-11-29 15:28:09.822 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Reader entry: <?xml version="1.0" encoding="UTF-8" ?>
2022-11-29 15:28:09.822 [DEBUG]  org.apache.ibatis.io.ResolverUtil [main] : Checking to see if class com.atguigu.mapper.UserMapper matches criteria [is assignable to Object]
2022-11-29 15:28:09.837 [DEBUG]  org.apache.ibatis.datasource.pooled.PooledDataSource [Finalizer] : PooledDataSource forcefully closed/removed all connections.
2022-11-29 15:28:09.837 [DEBUG]  org.apache.ibatis.datasource.pooled.PooledDataSource [Finalizer] : PooledDataSource forcefully closed/removed all connections.
2022-11-29 15:28:09.837 [DEBUG]  org.apache.ibatis.datasource.pooled.PooledDataSource [Finalizer] : PooledDataSource forcefully closed/removed all connections.
2022-11-29 15:28:09.837 [DEBUG]  org.apache.ibatis.datasource.pooled.PooledDataSource [Finalizer] : PooledDataSource forcefully closed/removed all connections.
2022-11-29 15:28:09.837 [DEBUG]  org.apache.ibatis.transaction.jdbc.JdbcTransaction [main] : Opening JDBC Connection
2022-11-29 15:28:09.846 [DEBUG]  org.apache.ibatis.datasource.pooled.PooledDataSource [main] : Created connection 555273695.
2022-11-29 15:28:09.851 [DEBUG]  com.atguigu.mapper.UserMapper.selectAll [main] : ==>  Preparing: select * from t_user;
2022-11-29 15:28:09.851 [DEBUG]  com.atguigu.mapper.UserMapper.selectAll [main] : ==> Parameters: 
2022-11-29 15:28:09.861 [DEBUG]  com.atguigu.mapper.UserMapper.selectAll [main] : <==      Total: 12
User{id=5, username='lsm_yxy', password='123456', age=30, sex='女', email='123456678@.com'}
User{id=7, username='lsm1', password='1234', age=20, sex='男', email='3108763627@.com'}
2022-11-29 15:28:09.861 [DEBUG]  org.apache.ibatis.transaction.jdbc.JdbcTransaction [main] : Closing JDBC Connection [com.mysql.cj.jdbc.ConnectionImpl@2118cddf]
User{id=8, username='lsm2', password='1234', age=20, sex='男', email='3108763627@.com'}
User{id=9, username='lsm3', password='1234', age=20, sex='男', email='3108763627@.com'}
User{id=11, username='lsm4', password='1234', age=20, sex='男', email='3108763627@.com'}
User{id=12, username='lsm5', password='1234', age=20, sex='男', email='3108763627@.com'}
User{id=13, username='lsm6', password='1234', age=20, sex='男', email='3108763627@.com'}
User{id=14, username='lsm7', password='1234', age=20, sex='男', email='3108763627@.com'}
User{id=15, username='tom', password='root', age=10, sex='男', email='123456@.com'}
User{id=16, username='Tom', password='root', age=10, sex='男', email='123456@.com'}
User{id=17, username='lsm', password='1234', age=20, sex='男', email='3108763627@.com'}
User{id=18, username='lsm', password='1234', age=20, sex='男', email='3108763627@.com'}
2022-11-29 15:28:09.861 [DEBUG]  org.apache.ibatis.datasource.pooled.PooledDataSource [main] : Returned connection 555273695 to pool.
测试查询函数.................
2022-11-29 15:28:09.872 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Find JAR URL: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/pojo
2022-11-29 15:28:09.872 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Not a JAR: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/pojo
2022-11-29 15:28:09.872 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Reader entry: User.class
2022-11-29 15:28:09.872 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Listing file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/pojo
2022-11-29 15:28:09.872 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Find JAR URL: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/pojo/User.class
2022-11-29 15:28:09.872 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Not a JAR: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/pojo/User.class
2022-11-29 15:28:09.872 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Reader entry: ����   4 Q
2022-11-29 15:28:09.877 [DEBUG]  org.apache.ibatis.io.ResolverUtil [main] : Checking to see if class com.atguigu.pojo.User matches criteria [is assignable to Object]
2022-11-29 15:28:09.882 [DEBUG]  org.apache.ibatis.datasource.pooled.PooledDataSource [main] : PooledDataSource forcefully closed/removed all connections.
2022-11-29 15:28:09.882 [DEBUG]  org.apache.ibatis.datasource.pooled.PooledDataSource [main] : PooledDataSource forcefully closed/removed all connections.
2022-11-29 15:28:09.882 [DEBUG]  org.apache.ibatis.datasource.pooled.PooledDataSource [main] : PooledDataSource forcefully closed/removed all connections.
2022-11-29 15:28:09.882 [DEBUG]  org.apache.ibatis.datasource.pooled.PooledDataSource [main] : PooledDataSource forcefully closed/removed all connections.
2022-11-29 15:28:09.882 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Find JAR URL: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/mapper
2022-11-29 15:28:09.882 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Not a JAR: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/mapper
2022-11-29 15:28:09.882 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Reader entry: UserMapper.class
2022-11-29 15:28:09.882 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Reader entry: UserMapper.xml
2022-11-29 15:28:09.882 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Listing file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/mapper
2022-11-29 15:28:09.882 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Find JAR URL: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/mapper/UserMapper.class
2022-11-29 15:28:09.882 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Not a JAR: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/mapper/UserMapper.class
2022-11-29 15:28:09.882 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Reader entry: ����   4    
2022-11-29 15:28:09.882 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Find JAR URL: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/mapper/UserMapper.xml
2022-11-29 15:28:09.882 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Not a JAR: file:/D:/mybatisProject/mybaits_01_quickstart/target/classes/com/atguigu/mapper/UserMapper.xml
2022-11-29 15:28:09.882 [DEBUG]  org.apache.ibatis.io.DefaultVFS [main] : Reader entry: <?xml version="1.0" encoding="UTF-8" ?>
2022-11-29 15:28:09.887 [DEBUG]  org.apache.ibatis.io.ResolverUtil [main] : Checking to see if class com.atguigu.mapper.UserMapper matches criteria [is assignable to Object]
2022-11-29 15:28:09.897 [DEBUG]  org.apache.ibatis.transaction.jdbc.JdbcTransaction [main] : Opening JDBC Connection
2022-11-29 15:28:09.902 [DEBUG]  org.apache.ibatis.datasource.pooled.PooledDataSource [main] : Created connection 938545229.
2022-11-29 15:28:09.902 [DEBUG]  com.atguigu.mapper.UserMapper.selectById [main] : ==>  Preparing: select * from t_user where id = 5;
2022-11-29 15:28:09.902 [DEBUG]  com.atguigu.mapper.UserMapper.selectById [main] : ==> Parameters: 
2022-11-29 15:28:09.907 [DEBUG]  com.atguigu.mapper.UserMapper.selectById [main] : <==      Total: 1
User{id=5, username='lsm_yxy', password='123456', age=30, sex='女', email='123456678@.com'}
2022-11-29 15:28:09.907 [DEBUG]  org.apache.ibatis.transaction.jdbc.JdbcTransaction [main] : Closing JDBC Connection [com.mysql.cj.jdbc.ConnectionImpl@37f1104d]
2022-11-29 15:28:09.907 [DEBUG]  org.apache.ibatis.datasource.pooled.PooledDataSource [main] : Returned connection 938545229 to pool.

Process finished with exit code 0

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