Log4j2是一个用于Java应用程序的日志管理工具,它是Spring框架中常用的日志组件之一。通过使用Spring的Log4j2 LogManager.getLogger()方法,可以获取一个用于记录日志的Logger对象。 LogManager.getLogger()方法是Log4j2提供的静态方法,用于获取Logger对象。它接受一个参数,即要记录日志的类的Class对象或者类的名称。通过传入不...
import org.apache.logging.log4j.LogManager; import org.apache.logging.log4j.Logger; public class MyClass { private static final Logger logger = LogManager.getLogger(MyClass.class); public void doSomething() { logger.debug("Debug level log message"); logger.info("Info level log message"); logge...
logmanager.getLogger 函数通常用于日志管理库中,用于获取一个特定名称的日志记录器实例。这个函数是许多日志框架(如Java的Log4j、Python的logging模块等)中的核心组成部分。下面是对该函数的详细解析: 基础概念 日志记录器(Logger):它是日志系统的入口点,负责收集和处理日志消息。每个日志记录器都有一个唯一的名称,并且...
public static void main(String[] args) { Logger logger = LoggerFactory.getLogger(HelloWorld.class); logger.info("Hello World"); } }`Copy to clipboardErrorCopied 1. 2. 3. 4. 5. 6. 7. 8. 9. 每一个日志的实现框架都有自己的配置文件。使用slf4j以后,配置文件还是做成日志实现框架自己本身的...
13 more Caused by: java.lang.IllegalStateException: Maximum number of attachments exceeded at org.jboss.logmanager.LoggerNode.attachIfAbsent(LoggerNode.java:428) at org.jboss.logmanager.Logger.attachIfAbsent(Logger.java:194) at org.jboss.logging.JBossLogManagerProvider.doGetLogger(JBossLogManagerProvider...
用log4j做日志工具,必须在每个类中都写LogManager.getLogger(UserController.class)? swnuv 3.9k668961494 发布于 2020-03-08 private static final Logger logger = LogManager.getLogger(UserController.class); 要想使用的话,必须每个类都要写吗?那样不是太麻烦啦吗?
Caused by: java.lang.NoClassDefFoundError: Could not initializeclassorg.apache.log4j.LogManager at org.apache.log4j.Logger.getLogger(Logger.java:85) at com.dsideal.framework.aop.LoggingThrowsAdvice.<init>(LoggingThrowsAdvice.java:12) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)...
Caused by: java.lang.NoClassDefFoundError: Could not initializeclassorg.apache.log4j.LogManager at org.apache.log4j.Logger.getLogger(Logger.java:85) at com.dsideal.framework.aop.LoggingThrowsAdvice.<init>(LoggingThrowsAdvice.java:12) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)...
import org.apache.logging.log4j.LogManager; import org.apache.logging.log4j.Logger; /** Hello world! */ public class App { private static final Logger log = LogManager.getLogger(App.class); public static void main( String[] args )
Caused by: java.lang.NoClassDefFoundError: Could not initialize class org.apache.log4j.LogManager at org.slf4j.impl.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:73) at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:209) at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:221) at org...