- Spring5使用的是log4j2的包,配置Maven依赖
<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>
- 在resources文件夹中加入一个log4j2的配置文件,取名为
log4j2.xml
,并加入配置信息
参考:log4j2配置<configuration status="WARN" monitorInterval="30"> <Properties> <!--自定义一些常量,之后使用${变量名}引用--> <Property name="logFilePath">log</Property> <Property name="logFileName">test.log</Property> </Properties> <!--appenders:定义输出内容,输出格式,输出方式,日志保存策略等,常用其下三种标签[console,File,RollingFile]--> <appenders> <!--console :控制台输出的配置--> <console name="Console" target="SYSTEM_OUT"> <!--PatternLayout :输出日志的格式,LOG4J2定义了输出代码,详见第二部分--> <PatternLayout pattern="[%d{HH:mm:ss:SSS}] [%p] - %l - %m%n"/> </console> <!--File :同步输出日志到本地文件--> <File name="log" fileName="${logFilePath}/${logFileName}" append="true"> <PatternLayout pattern="%d{HH:mm:ss.SSS} %-5level %class{36} %L %M - %msg%xEx%n"/> </File> </appenders> <!--然后定义logger,只有定义了logger并引入的appender,appender才会生效--> <loggers> <!-- Root节点用来指定项目的根日志,如果没有单独指定Logger,那么就会默认使用该Root日志输出 --> <root level="info"> <appender-ref ref="Console"/> <appender-ref ref="log"/> </root> </loggers> </configuration>
- 调用
注意,import的是public class AccountServiceTest { private static final Logger logger = LoggerFactory.getLogger(AccountServiceTest.class); // 通过LoggerFactory获取Logger @Test public void transferTest2() { 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("转账成功"); else logger.info("转账失败"); } }
import org.slf4j.Logger; import org.slf4j.LoggerFactory;