mybatis项目中添加logback日志

Posted on 2024年2月6日 by hackdl

1、pom.xml

    
        
            org.mybatis
            mybatis
        

        
        
            mysql
            mysql-connector-java
        

        
        
            org.junit.jupiter
            junit-jupiter-api
        

        
            org.projectlombok
            lombok
        

        
        
            ch.qos.logback
            logback-classic

2、logback.xml



    
    
        
            
            
            [%d{HH:mm:ss.SSS}] [%-5level] [%thread] [%logger] [%msg]%n
            UTF-8

3、建库建表

CREATE DATABASE `mybatis-example`;
 
USE `mybatis-example`;
 
CREATE TABLE `t_emp`(
  emp_id INT AUTO_INCREMENT,
  emp_name CHAR(100),
  emp_salary DOUBLE(10,5),
  PRIMARY KEY(emp_id)
);
 
INSERT INTO `t_emp`(emp_name,emp_salary) VALUES("tom",200.33);
INSERT INTO `t_emp`(emp_name,emp_salary) VALUES("jerry",666.66);
INSERT INTO `t_emp`(emp_name,emp_salary) VALUES("andy",777.77);

4、Employee.java

package com.atguigu.mybatis.pojo;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
@Data
@NoArgsConstructor
@AllArgsConstructor
public class Employee {
    private Integer empId;
    private String empName;
    private Double empSalary;
}

5、mybatis-config.xml（mybatis的总配置文件）

6、MybatisTest.java

package com.atguigu.mybatis;
import com.atguigu.mybatis.mapper.EmpMapper;
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.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import java.io.IOException;
import java.io.InputStream;
public class MybatisTest {
 
    SqlSessionFactory sqlSessionFactory;
    SqlSession sqlSession;
    EmpMapper empMapper;
 
    @BeforeEach
    public void setup() throws IOException {
        // 获取资源流，读取"mybatis-config.xml"文件
        InputStream inputStream = Resources.getResourceAsStream("mybatis-config.xml");
        // 使用资源流创建SqlSessionFactory
        sqlSessionFactory = new SqlSessionFactoryBuilder().build(inputStream);
        // 使用SqlSessionFactory打开一个Session
        sqlSession = sqlSessionFactory.openSession();
        // 使用Session获取EmpMapper的Mapper对象
        empMapper = sqlSession.getMapper(EmpMapper.class);
    }
 
 
    // 在每个测试用例之后执行的清理方法
    @AfterEach
    public void teardown() {
        sqlSession.close();  // 关闭SqlSession
    }
 
 
    @Test
    public void getEmployeeListTest() {
        empMapper.getEmployeeList().forEach(System.out::println);
    }
    //Employee(empId=1, empName=tom, empSalary=200.33)
    //Employee(empId=2, empName=jerry, empSalary=666.66)
    //Employee(empId=3, empName=andy, empSalary=777.77)
 
    @Test
    public void getEmployeeByIdTest() throws IOException {
        System.out.println(empMapper.getEmployeeById(1));
        //Employee(empId=1, empName=tom, empSalary=200.33)
    }
}

D:Javajdk-17binjava.exe -ea -Didea.test.cyclic.buffer.size=1048576 "-javaagent:D:BaiduNetdiskDownloadIntelliJ IDEA 2023.2libidea_rt.jar=18702:D:BaiduNetdiskDownloadIntelliJ IDEA 2023.2bin" -Dfile.encoding=UTF-8 -classpath "D:developmavenrepositoryorgjunitplatformjunit-platform-launcher1.3.1junit-platform-launcher-1.3.1.jar;D:developmavenrepositoryorgapiguardianapiguardian-api1.0.0apiguardian-api-1.0.0.jar;D:developmavenrepositoryorgjunitplatformjunit-platform-engine1.3.1junit-platform-engine-1.3.1.jar;D:developmavenrepositoryorgjunitplatformjunit-platform-commons1.3.1junit-platform-commons-1.3.1.jar;D:developmavenrepositoryorgopentest4jopentest4j1.1.1opentest4j-1.1.1.jar;D:developmavenrepositoryorgjunitjupiterjunit-jupiter-engine5.3.1junit-jupiter-engine-5.3.1.jar;D:developmavenrepositoryorgjunitjupiterjunit-jupiter-api5.3.1junit-jupiter-api-5.3.1.jar;D:BaiduNetdiskDownloadIntelliJ IDEA 2023.2libidea_rt.jar;D:BaiduNetdiskDownloadIntelliJ IDEA 2023.2pluginsjunitlibjunit5-rt.jar;D:BaiduNetdiskDownloadIntelliJ IDEA 2023.2pluginsjunitlibjunit-rt.jar;F:Idea服务器托管网Projectsworkspacepro-ssmpro18-mybatis-begintargettest-classes;F:IdeaProjectsworkspacepro-ssmpro18-mybatis-begintargetclasses;F:my_javamaven_repositoryorgmybatismybatis3.5.11mybatis-3.5.11.jar;F:my_javamaven_repositorymysqlmysql-connector-java8.0.25mysql-connector-java-8.0.25.jar;F:my_javamaven_repositorycomgoogleprotobufprotobuf-java3.11.4protobuf-java-3.11.4.jar;F:my_javamaven_repositoryorgjunitjupiterjunit-jupiter-api5.3.1junit-jupiter-api-5.3.1.jar;F:my_javamaven_repositoryorgapiguardianapiguardian-api1.0.0apiguardian-api-1.0.0.jar;F:my_javamaven_repositoryorgopentest4jopentest4j1.1.1opentest4j-1.1.1.jar;F:my_javamaven_repositoryorgjunitplatformjunit-platform-commons1.3.1junit-platform-commons-1.3.1.jar;F:my_javamaven_repositoryorgprojectlomboklombok1.18.20lombok-1.18.20.jar;F:my_javamaven_repositorychqoslogbacklogback-classic1.2.3logback-classic-1.2.3.jar;F:my_javamaven_repositorychqoslogbacklogback-core1.2.3logback-core-1.2.3.jar;F:my_javamaven_repositoryorgslf4jslf4j-api1.7.25slf4j-api-1.7.25.jar" com.intellij.rt.junit.JUnitStarter -ideVersion5 -junit5 com.atguigu.mybatis.MybatisTest,getEmployeeListTest
19:39:19,463 |-INFO in ch.qos.logback.classic.LoggerContext[default] - Could NOT find resource [logback-test.xml]
19:39:19,463 |-INFO in ch.qos.logback.classic.LoggerContext[default] - Could NOT find resource [logback.groovy]
19:39:19,463 |-INFO in ch.qos.logback.classic.LoggerContext[default] - Found resource [logback.xml] at [file:/F:/IdeaProjects/workspace/pro-ssm/pro18-mybatis-begin/target/classes/logback.xml]
19:39:19,537 |-INFO in ch.qos.logback.core.joran.action.AppenderAction - About to instantiate appender of type [ch.qos.logback.core.ConsoleAppender]
19:39:19,540 |-INFO in ch.qos.logback.core.joran.action.AppenderAction - Naming appender as [STDOUT]
19:39:19,548 |-INFO in ch.qos.logback.core.joran.action.NestedComplexPropertyIA - Assuming default type [ch.qos.logback.classic.encoder.PatternLayoutEncoder] for [encoder] property
19:39:19,575 |-INFO in ch.qos.logback.classic.joran.action.RootLoggerAction - Setting level of ROOT logger to DEBUG
19:39:19,575 |-INFO in ch.qos.logback.core.joran.action.AppenderRefAction - Attaching appender named [STDOUT] to Logger[ROOT]
19:39:19,576 |-INFO in ch.qos.logback.classic.joran.action.LoggerAction - Setting level of logger [com.atguigu.mybatis] to DEBUG
19:39:19,576 |-INFO in ch.qos.logback.classic.joran.action.ConfigurationAction - End of configuration.
19:39:19,577 |-INFO in ch.qos.logback.classic.joran.JoranConfigurator@62230c58 - Registering current configuration as safe fallback point
[19:39:19.582] [DEBUG] [main] [org.apache.ibatis.logging.LogFactory] [Logging initialized using 'class org.apache.ibatis.logging.slf4j.Slf4jImpl' adapter.]
[19:39:19.596] [DEBUG] [main] [org.apache.ibatis.datasource.pooled.PooledDataSource] [PooledDataSource forcefully closed/removed all connections.]
[19:39:19.596] [DEBUG] [main] [org.apache.ibatis.datasource.pooled.PooledDataSource] [PooledDataSource forcefully closed/removed all connections.]
[19:39:19.596] [DEBUG] [main] [org.apache.ibatis.datasource.pooled.PooledDataSource] [PooledDataSource forcefully closed/removed all connections.]
[19:39:19.596] [DEBUG] [main] [org.apache.ibatis.datasource.pooled.PooledDataSource] [PooledDataSource forcefully closed/removed all connections.]
[19:39:19.682] [DEBUG] [main] [org.apache.ibatis.transaction.jdbc.JdbcTransaction] [Opening JDBC Connection]
[19:39:20.235] [DEBUG] [main] [org.apache.ibatis.datasource.pooled.PooledDataSource] [Created connection 1193398802.]
[19:39:20.236] [DEBUG] [main] [org.apache.ibatis.transaction.jdbc.JdbcTransaction] [Setting autocommit to false on JDBC Connection [com.mysql.cj.jdbc.ConnectionImpl@4721d212]]
[19:39:20.239] [DEBUG]服务器托管网 [main] [com.atguigu.mybatis.mapper.EmpMapper.getEmployeeList] [==>  Preparing: select emp_id empId, emp_name empName, emp_salary empSalary from t_emp]
[19:39:20.280] [DEBUG] [main] [com.atguigu.mybatis.mapper.EmpMapper.getEmployeeList] [==> Parameters: ]
[19:39:20.320] [DEBUG] [main] [com.atguigu.mybatis.mapper.EmpMapper.getEmployeeList] [

D:Javajdk-17binjava.exe -ea -Didea.test.cyclic.buffer.size=1048576 "-javaagent:D:BaiduNetdiskDownloadIntelliJ IDEA 2023.2libidea_rt.jar=18726:D:BaiduNetdiskDownloadIntelliJ IDEA 2023.2bin" -Dfile.encoding=UTF-8 -classpath "D:developmavenrepositoryorgjunitplatformjunit-platform-launcher1.3.1junit-platform-launcher-1.3.1.jar;D:developmavenrepositoryorgapiguardianapiguardian-api1.0.0apiguardian-api-1.0.0.jar;D:developmavenrepositoryorgjunitplatformjunit-platform-engine1.3.1junit-platform-engine-1.3.1.jar;D:developmavenrepositoryorgjunitplatformjunit-platform-commons1.3.1junit-platform-commons-1.3.1.jar;D:developmavenrepositoryorgopentest4jopentest4j1.1.1opentest4j-1.1.1.jar;D:developmavenrepositoryorgjunitjupiterjunit-jupiter-engine5.3.1junit-jupiter-engine-5.3.1.jar;D:developmavenrepositoryorgjunitjupiterjunit-jupiter-api5.3.1junit-jupiter-api-5.3.1.jar;D:BaiduNetdiskDownloadIntelliJ IDEA 2023.2libidea_rt.jar;D:BaiduNetdiskDownloadIntelliJ IDEA 2023.2pluginsjunitlibjunit5-rt.jar;D:BaiduNetdiskDownloadIntelliJ IDEA 2023.2pluginsjunitlibjunit-rt.jar;F:IdeaProjectsworkspacepro-ssmpro18-mybatis-begintargettest-classes;F:IdeaProjectsworkspacepro-ssmpro18-mybatis-begintargetclasses;F:my_javamaven_repositoryorgmybatismybatis3.5.11mybatis-3.5.11.jar;F:my_javamaven_repositorymysqlmysql-connector-java8.0.25mysql-connector-java-8.0.25.jar;F:my_javamaven_repositorycomgoogleprotobufprotobuf-java3.11.4protobuf-java-3.11.4.jar;F:my_javamaven_repositoryorgjunitjupiterjunit-jupiter-api5.3.1junit-jupiter-api-5.3.1.jar;F:my_javamaven_repositoryorgapiguardianapiguardian-api1.0.0apiguardian-api-1.0.0.jar;F:my_javamaven_repositoryorgopentest4jopentest4j1.1.1opentest4j-1.1.1.jar;F:my_javamaven_repositoryorgjunitplatformjunit-platform-commons1.3.1junit-platform-commons-1.3.1.jar;F:my_javamaven_repositoryorgprojectlomboklombok1.18.20lombok-1.18.20.jar;F:my_javamaven_repositorychqoslogbacklogback-classic1.2.3logback-classic-1.2.3.jar;F:my_javamaven_repositorychqoslogbacklogback-core1.2.3logback-core-1.2.3.jar;F:my_javamaven_repositoryorgslf4jslf4j-api1.7.25slf4j-api-1.7.25.jar" com.intellij.rt.junit.JUnitStarter -ideVersion5 -junit5 com.atguigu.mybatis.MybatisTest,getEmployeeByIdTest
19:40:00,097 |-INFO in ch.qos.logback.classic.LoggerContext[default] - Could NOT find resource [logback-test.xml]
19:40:00,097 |-INFO in ch.qos.logback.classic.LoggerContext[default] - Could NOT find resource [logback.groovy]
19:40:00,097 |-INFO in ch.qos.logback.classic.LoggerContext[default] - Found resource [logback.xml] at [file:/F:/IdeaProjects/workspace/pro-ssm/pro18-mybatis-begin/target/classes/logback.xml]
19:40:00,180 |-INFO in ch.qos.logback.core.joran.action.AppenderAction - About to instantiate appender of type [ch.qos.logback.core.ConsoleAppender]
19:40:00,184 |-INFO in ch.qos.logback.core.joran.action.AppenderAction - Naming appender as [STDOUT]
19:40:00,190 |-INFO in ch.qos.logback.core.joran.action.NestedComplexPropertyIA - Assuming default type [ch.qos.logback.classic.encoder.PatternLayoutEncoder] for [encoder] property
19:40:00,218 |-INFO in ch.qos.logback.classic.joran.action.RootLoggerAction - Setting level of ROOT logger to DEBUG
19:40:00,219 |-INFO in ch.qos.logback.core.joran.action.AppenderRefAction - Attaching appender named [STDOUT] to Logger[ROOT]
19:40:00,220 |-INFO in ch.qos.logback.classic.joran.action.LoggerAction - Setting level of logger [com.atguigu.mybatis] to DEBUG
19:40:00,220 |-INFO in ch.qos.logback.classic.joran.action.ConfigurationAction - End of configuration.
19:40:00,221 |-INFO in ch.qos.logback.classic.joran.JoranConfigurator@62230c58 - Registering current configuration as safe fallback point
[19:40:00.226] [DEBUG] [main] [org.apache.ibatis.logging.LogFactory] [Logging initialized using 'class org.apache.ibatis.logging.slf4j.Slf4jImpl' adapter.]
[19:40:00.242] [DEBUG] [main] [org.apache.ibatis.datasource.pooled.PooledDataSource] [PooledDataSource forcefully closed/removed all connections.]
[19:40:00.242] [DEBUG] [main] [org.apache.ibatis.datasource.pooled.PooledDataSource] [PooledDataSource forcefully closed/removed all connections.]
[19:40:00.242] [DEBUG] [main] [org.apache.ibatis.datasource.pooled.PooledDataSource] [PooledDataSource forcefully closed/removed all connections.]
[19:40:00.242] [DEBUG] [main] [org.apache.ibatis.datasource.pooled.PooledDataSource] [PooledDataSource forcefully closed/removed all connections.]
[19:40:00.316] [DEBUG] [main] [org.apache.ibatis.transaction.jdbc.JdbcTransaction] [Opening JDBC Connection]
[19:40:00.869] [DEBUG] [main] [org.apache.ibatis.datasource.pooled.PooledDataSource] [Created connection 1626852381.]
[19:40:00.870] [DEBUG] [main] [org.apache.ibatis.transaction.jdbc.JdbcTransaction] [Setting autocommit to false on JDBC Connection [com.mysql.cj.jdbc.ConnectionImpl@60f7cc1d]]
[19:40:00.874] [DEBUG] [main] [com.atguigu.mybatis.mapper.EmpMapper.getEmployeeById] [==>  Preparing: select emp_id empId, emp_name empName, emp_salary empSalary from t_emp where emp_id = ?]
[19:40:00.918] [DEBUG] [main] [com.atguigu.mybatis.mapper.EmpMapper.getEmployeeById] [==> Parameters: 1(Integer)]
[19:40:00.961] [DEBUG] [main] [com.atguigu.mybatis.mapper.EmpMapper.getEmployeeById] [

7、SLF4J

SLF4J，即简单日志门面（Simple Logging Facade for Java），不是具体的日志解决方案，它只服务于各种各样的日志系统。按照官方的说法，SLF4J是一个用于日志系统的简单Facade，允许最终用户在部署其应用时使用其所希望的日志系统。实际上，SLF4J所提供的核心API是一些接口以及一个LoggerFactory的工厂类。

使用SLF4J的时候，不需要在代码中或配置文件中指定你打算使用那个具体的日志系统。如同使用JDBC基本不用考虑具体数据库一样，SLF4J提供了统一的记录日志的接口，只要按照其提供的方法记录即可，最终日志的格式、记录级别、输出方式等通过具体日志系统的配置来实现，因此可以在应用中灵活切换日志系统。

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