mybatis plus log

MyBatis Plus provides a logging feature that allows you to track and analyze the SQL statements executed by your application. To enable logging in MyBatis Plus, you can configure a logging implementation of your choice, such as Log4j or SLF4J.

Here is an example of configuring logging using Log4j:

1. Add the Log4j dependency to your project's build file (e.g., Maven or Gradle).

2. Create a Log4j configuration file (e.g., log4j.properties) and specify the desired logging settings. For example:

# Set root logger level to INFO and appender to console
log4j.rootLogger=INFO, console

# Define the console appender
log4j.appender.console=org.apache.log4j.ConsoleAppender
log4j.appender.console.layout=org.apache.log4j.PatternLayout
log4j.appender.console.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n

3. In your MyBatis Plus configuration file (e.g., mybatis-config.xml), enable logging by adding the following lines:

<configuration>
    <!-- ... your other configuration settings ... -->
    
    <!-- Enable logging -->
    <settings>
        <setting name="logImpl" value="LOG4J"/>
    </settings>
</configuration>

Make sure to adjust the `value` attribute to match the logging implementation you are using (e.g., `LOG4J2` for Log4j 2.x).

With the above configuration, MyBatis Plus will use Log4j for logging. You can then customize the logging settings in your Log4j configuration file as needed. The logged statements will include information such as the executed SQL, parameters, and execution time.

Remember to properly configure your logging implementation according to its documentation and your project's needs.