【springboot+druid报错log4j:WARN No appenders could be found for logger (druid.sql.Connection). log4j:WARN Please initialize the log4j system properly.】的更多相关文章

springboot+druid报错log4j:WARN No appenders could be found for logger (druid.sql.Connection). log4j:WARN Please initialize the log4j system properly.

 解决方案:新建文件log4j.properties log4j.rootLogger=DEBUG, stdout log4j.appender.stdout=org.apache.log4j.ConsoleAppender log4j.appender.stdout.layout=org.apache.log4j.PatternLayout log4j.appender.stdout.layout.ConversionPattern=%5p [%t] - %m%n   效果图:…

hadoop项目开发运行报错（log4j:WARN No appenders could be found for logger (org.apache.hadoop.metrics2.lib.MutableMetricsFactory).）

使用hadoop+myeclipse开发项目是测试运行报错: log4j:WARN No appenders could be found for logger (org.apache.hadoop.metrics2.lib.MutableMetricsFactory). log4j:WARN Please initialize the log4j system properly. log4j:WARN See http://logging.apache.org/log4j/1.2/faq.ht…

log4j:WARN No appenders could be found for logger (org.apache.hadoop.metrics2.lib.MutableMetricsFactory). log4j:WARN Please initialize the log4j system properly. log4j:WARN See http://logging.apache.o

上面的报错是在本地java调试(windows) hadoop集群 出现的 解决方案: 在resources文件夹下面创建一个文件log4j.properties(这个其实hadoop安装目录下的 etc/hadoop/log4j.properties 同名,我尝试拿过来用,发现还是不行报错信息如下) log4j:WARN No appenders could be found for logger (org.apache.hadoop.metrics2.lib.MutableMetricsFa…

log4j:WARN No appenders could be found for logger (org.springframework.core.env.StandardEnvironment)的解决

报错:log4j:WARN No appenders could be found for logger (org.springframework.core.env.StandardEnvironment). 出错原因:缺少日志文件,主要是后面的原因org.springframework.core.env.StandardEnvironment 解决方案:在resource中添加对应的log4j.properties文件,文件内容为 log4j.rootLogger=DEBUG,A1log4j.…

springboot 启动报错"No bean named 'org.springframework.context.annotation.ConfigurationClassPostProcessor.importRegistry' available"

1.问题 springboot启动报错 "D:\Program Files\Java\jdk-11\bin\java.exe" -XX:TieredStopAtLevel=1 -noverify -Dspring.output.ansi.enabled=always -Dcom.sun.management.jmxremote -Dspring.jmx.enabled=true -Dspring.liveBeansView.mbeanDomain -Dspring.applicatio…

log4j:WARN No appenders could be found for logger

直接写我的解决办法: 在src下面新建file名为log4j.properties内容如下:# Configure logging for testing: optionally with log file log4j.rootLogger=WARN, stdout # log4j.rootLogger=WARN, stdout, logfile log4j.appender.stdout=org.apache.log4j.ConsoleAppender log4j.appender.stdou…

解决log4j:WARN No appenders could be found for logger (org.springframework.web.context.ContextLoader)警告信息的问题

spring项目经常在启动tomcat时报如下警告信息: log4j:WARN No appenders could be found for logger (org.springframework.web.context.ContextLoader). log4j:WARN Please initialize the log4j system properly. 网上贴出了各种解决办法我试了一下都不管用,这个错误信息应该是在加载spring的contextLoader时没有找到log4j造成的…

Log4j使用教程 log4：WARN No appenders could be found for logger (org.springframework.web.context.ContextLoader).

1.Logger类 通过Logger类的静态方法Logger.getRootLogger得到RootLogger.所有其他的loggers是通过静态方法Logger.getLogger来实例化并获取的.这个方法Logger.getLogger把所想要的logger的名字作为参数. Logger类的一些其它基本方法在下面列出: package org.apache.log4j; public class Logger {   // Creation and retrieval methods:  …

maven:log4j:WARN No appenders could be found for logger (loggerInfo).或者maven build error:org.apache.maven.lifecycle.LifecycleExecutionExceptio

maven在build构建时,加载资源文件时需要配置资源文件插件: 1,在pom.xml文件中加入 <build> <finalName>${project.build.target.file.name}</finalName> <directory>${basedir}/target</directory>  <sourceDirectory>${basedir}/src/main/java</sourceDirectory&…

(转)log4j:WARN No appenders could be found for logger 解决方案

我们在使用Log4j的时候,总是出现: log4j:WARN No appenders could be found for logger (org.apache.ibatis.logging.LogFactory). log4j:WARN Please initialize the log4j system properly. 这个问题是因为我们的log4j.properties文件配置不够完整,所以我们给它配置齐了就不会再出现这个问题. log4j.properties不完整配置如下: lo…