Spring log4j integration

<dependency>
    <groupId>org.apache.logging.log4j</groupId>
    <artifactId>log4j-api</artifactId>
    <version>2.14.1</version>
</dependency>
<dependency>
    <groupId>org.apache.logging.log4j</groupId>
    <artifactId>log4j-core</artifactId>
    <version>2.14.1</version>
</dependency>
<! -- https://mvnrepository.com/artifact/org.apache.logging.log4j/log4j-slf4j-impl -->
<dependency>
    <groupId>org.apache.logging.log4j</groupId>
    <artifactId>log4j-slf4j-impl</artifactId>
    <version>2.14.1</version>
    <scope>test</scope>
</dependency>
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<configuration status="WARN" monitorInterval="30">
    <Properties>
        <! ${variable name} -->
        <Property name="logFilePath">log</Property>
        <Property name="logFileName">test.log</Property>
    </Properties>
    <! Appenders: define output content, output format, output method, log saving policy, etc. Use the following tags [console,File,RollingFile]-->
    <appenders>
        <! --console: console output configuration -->
        <console name="Console" target="SYSTEM_OUT">
            <! PatternLayout: Format of the output log. LOG4J2 defines the output code, see Part 2.
            <PatternLayout pattern="[%d{HH:mm:ss:SSS}] [%p] - %l - %m%n"/>
        </console>
        <! --File: synchronize output log to local File -->
        <File name="log" fileName="${logFilePath}/${logFileName}" append="true">
            <PatternLayout pattern="%d{HH:mm:ss.SSS} %-5level %class{36} %L %M - %msg%xEx%n"/>
        </File>
    </appenders>
    <! An appender will not work until logger is defined and appender is appended.
    <loggers>
        <! -- the Root node is used to specify the Root log for the project. If Logger is not specified separately, the Root log will be used by default.
        <root level="info">
            <appender-ref ref="Console"/>
            <appender-ref ref="log"/>
        </root>
    </loggers>
</configuration>
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Reference:Log4j2 configuration

public class AccountServiceTest {
  private static final Logger logger = LoggerFactory.getLogger(AccountServiceTest.class);  // Get the Logger from LoggerFactory

  @Test
  public void transferTest2(a) {
    ApplicationContext context = new AnnotationConfigApplicationContext(TxConfig.class);
    AccountService accountService = context.getBean("accountService", AccountService.class);
    int res = accountService.transfer(1.2.new BigDecimal("100"));
    if (res > 0)
      logger.info("Transfer successful");
    else
      logger.info("Transfer failed"); }}Copy the code

Note that import is

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
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