log4j

Log4j: Issues about the FallbackErrorHandler

由 ∥☆過路亽．° 提交于 2019-12-10 23:49:29
问题 I am working on a client-server-application and wanted to implement a flexible Loggingframework, so I chose log4j, which doesn´t really evolve anymore, but it is still handy framework. Because the Logging happens along the network, i wanted a solution for the case, that the network drive isn´t available, so the Logger has to change its destination file(s). Now I wanted to use the FallbackErrorHandler (configured with a XML-File) from the Log4j-library and the implementation worked: When my

Multiple filters for log4j using properties file

由 点点圈 提交于 2019-12-10 23:09:22
问题 I'm trying to filter log messages with this configuration (I pretend to ignore the messages containing the texts Could not refresh JMS Connection for destination and also the ones containing org.apache.activemq.transport.failover.FailoverTransport ): log4j.appender.stdout.filter.1=org.apache.log4j.varia.StringMatchFilter log4j.appender.stdout.filter.1.StringToMatch=Could not refresh JMS Connection for destination log4j.appender.stdout.filter.1.AcceptOnMatch=false log4j.appender.stdout.filter

SpringBoot日志处理之Logback

由 北慕城南 提交于 2019-12-10 22:52:23
日志处理是一个正式项目必备的功能，日志要能够根据时间、类型等要素，根据指定格式来保存指定的日志，方便我们观察程序运行情况、定位程序bug。 SpringBoot中推荐使用Logback日志框架。 本节示例项目在https://github.com/laolunsi/spring-boot-examples slf4j：一个针对各类Java日志框架的统一facade抽象。 java常见日志框架：java.util.logging, log4j, logback, commons-logging logback是log4j的作者开发的新一代日志框架，目前应用最广泛。SpringBoot默认使用logback，默认INFO级别 Logback： 日志加载顺序：logback.xml -> application.properties -> logback-spring.xml 一、日志级别 log4j定义的日志级别：debug/info/warn/error/fatal warn，潜在错误；error，错误，可能导致程序退出；fatal，严重错误，程序会退出 还有两个特殊的级别：OFF-最高级别，ALL-最低级别 log4j建议仅使用debug/info/warn/error四个级别 日志级别：ERROR -> WARN -> INFO -> DEBUG 如配置日志级别为INFO

Mybatis的入门------环境搭建

由 末鹿安然 提交于 2019-12-10 21:38:57
环境搭建 　　第一步：创建maven工程并导入坐标 　　　　　　 <dependencies> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>3.4.5</version> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.32</version> </dependency> <dependency> <groupId>log4j</groupId> <artifactId>log4j</artifactId> <version>1.2.17</version> </dependency> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.12</version> </dependency> </dependencies> 　　第二步：创建实体类和dao的接口 　　第三步：创建Mybatis的主配置文件 　　　　　　 SqlMapConifg.xml <?xml version=

Must include log4J, but it is causing errors in Apache Spark shell. How to avoid errors?

由 强颜欢笑 提交于 2019-12-10 21:21:12
问题 Due to a complexity of the jars that I must include into a Spark code, I would like to ask for a help figuring out the way to solve this issue without removing the log4j import. The simple code is as follows: :cp symjar/log4j-1.2.17.jar import org.apache.spark.rdd._ val hadoopConf=sc.hadoopConfiguration; hadoopConf.set("fs.s3n.impl", "org.apache.hadoop.fs.s3native.NativeS3FileSystem") hadoopConf.set("fs.s3n.awsAccessKeyId","AKEY") hadoopConf.set("fs.s3n.awsSecretAccessKey","SKEY") val

how to append date to log file name using RollingFileAppender

由 早过忘川 提交于 2019-12-10 21:16:26
问题 i'm using log4j RollingFileAppender , i'm trying to append date to file name so i append "-%d{yyyy-MM-dd_HH-mm}." to active file name property in log4j.properties like below , however file is generated with name mylog-%d{yyyy-MM-dd_HH-mm}.log without setting the date log4j.appender.mylog.rollingPolicy.ActiveFileName=mylog-%d{yyyy-MM-dd_HH-mm}.log any helping ideas ?? 回答1: If you want a new log file every day use DailyRollingFileAppender. When it creates a new log file it'll rename the old one

log4j.properties

由 萝らか妹 提交于 2019-12-10 21:03:33
### 设置### log4j.rootLogger = debug,stdout,D,E ### 输出信息到控制抬 ### log4j.appender.stdout = org.apache.log4j.ConsoleAppender log4j.appender.stdout.Target = System.out log4j.appender.stdout.layout = org.apache.log4j.PatternLayout log4j.appender.stdout.layout.ConversionPattern = [%-5p] %d{yyyy-MM-dd HH:mm:ss,SSS} method:%l%n%m%n ### 输出DEBUG 级别以上的日志到=E://logs/error.log ### log4j.appender.D = org.apache.log4j.DailyRollingFileAppender log4j.appender.D.File = E://logs/log.log log4j.appender.D.Append = true log4j.appender.D.Threshold = DEBUG log4j.appender.D.layout = org.apache.log4j.PatternLayout log4j

grails separating info logging

由 末鹿安然 提交于 2019-12-10 21:00:29
问题 I am trying to separate the info, warn and errors log, i did the below configuration, but on info file continue to log the other types of log on the same file, i already tried to search on the other topics but i did not find a solution, anyone can help ? def logLayoutPattern = new PatternLayout("%d{yyyy-MM-dd/HH:mm:ss.SSS} %x %-5p %c{2} - %m%n") appenders { appender new DailyRollingFileAppender(name: "perfil",threshold: Level.INFO,file: "/tmp/logs/file_perfil.log",datePattern: "'.'yyyy-MM-dd"

unable to write log on correct file for mulithread?

由 天涯浪子 提交于 2019-12-10 20:25:42
问题 I have posted question: how to use log4j in Multithread using java?. i got response i tried with one solution, using this solution i have create different log files for each thread but the contain of each thread will mess up. WorkThread.java package com.demo; import com.arosys.customexception.KeyNotFoundException; import com.arosys.doqeap.exception.NullObjectFoundException; import com.arosys.doqeap.exception.ValueNotFoundException; import com.arosys.doqeap.serviceconfiguration

Log4j2 File Inclusion : <include> and <included> similar to Logback

由 折月煮酒 提交于 2019-12-10 20:11:02
问题 Does Log4j2 support file inclusion mechanism like Logback does ? This is for including parts of a configuration file from another file (containing appenders, loggers etc.) As an FYI - Here is how it works in Logback: Joran supports including parts of a configuration file from another file. This is done by declaring a element, as shown below: Example: File include (logback-examples/src/main/java/chapters/configuration/containingConfig.xml) <configuration> <include file="src/main/java/chapters
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