log4j

Application cannot create log file in UNIX?

对着背影说爱祢 提交于 2019-12-25 15:40:54
问题 I have developed a web project. Which is generating log file using log4j. But the same application is deployed in UNIX, it is not able to create log file also.. I'm new to unix. Why it is not creating log file? This is the code.... log4j.rootLogger = INFO,CA, FA #Console Appender log4j.appender.CA = org.apache.log4j.ConsoleAppender log4j.appender.CA.layout = org.apache.log4j.PatternLayout log4j.appender.CA.layout.ConversionPattern = %d %5p %c{1}:%L - %m%n #File Appender log4j.appender.FA =

统一封装Logger对象并获取正确的位置信息

痞子三分冷 提交于 2019-12-25 10:18:50
平时项目中,我们一般会在每一个类中定义一个logger对象,一般是使用日志门面系统slf4j去获取日志对象 private static final Logger logger = LoggerFactory.getLogger(xx.class); 但是考虑到项目文件如果非常之多,可能会非常麻烦,当然,可以使用lombok(这真是太好用了).还有一种方案就是自己定义一个Logger工具类,封装logger对象,但是这个弊端就是会使得打印位置信息的时候,全都定位到了这个工具类. 这里就提供一下比较常见的日志系统怎么来解决这个问题.害,空下来就光研究这些东西了. log4j,公司的项目就是用的这个,very old,所以我今天就在琢磨想给他升级成logback/log4j2. log4j自己的Logger对象有一个方法:public void log(String callerFQCN, Priority level, Object message, Throwable t) 这个方法可以将调用者的类名传入 FQCN (Full Qualified Class Name),然后在位置信息中有一段代码. public LocationInfo(Throwable t, String fqnOfCallingClass) { if(t == null ||

how to apply logging in spring boot in external log file? [closed]

为君一笑 提交于 2019-12-25 09:44:47
问题 Closed . This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 2 years ago . I am trying to apply logging in external file in my spring boot project. Is it possible. I have followed many websites. Please help. 回答1: You have to define a logback.xml file at the root of the classpath (typically in src/main/resources ). Example : <?xml version="1.0" encoding=

how to apply logging in spring boot in external log file? [closed]

妖精的绣舞 提交于 2019-12-25 09:44:08
问题 Closed . This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 2 years ago . I am trying to apply logging in external file in my spring boot project. Is it possible. I have followed many websites. Please help. 回答1: You have to define a logback.xml file at the root of the classpath (typically in src/main/resources ). Example : <?xml version="1.0" encoding=

BeanFactory 和 ApplicationContext

我的未来我决定 提交于 2019-12-25 05:41:26
原文: BeanFactory 和 ApplicationContext Spring通过一个配置文件描述Bean及Bean直接的依赖关系,利用Java语言的反射功能实例化Bean并建立Bean之间的依赖关系。Sprig的IoC容器在完成这些底层工作的基础上,还提供了Bean实例缓存、生命周期管理、Bean实例代理、事件发布、资源装载等高级服务。 Bean工厂(com.springframework.beans.factory.BeanFactory)是Spring框架最核心的接口,它提供了高级IoC的配置机制。BeanFactory使管理不同类型的Java对象成为可能,应用上下文(com.springframework.context.ApplicationContext)建立在BeanFactory基础之上,提供了更多面向应用的功能,它提供了国际化支持和框架事件体系,更易于创建实际应用。我们一般称BeanFactory为IoC容器,而称 ApplicationContext为应用上下文。但有时为了行文方便,我们也将ApplicationContext称为Spring容器。 BeanFactory是Spring框架的基础设施,面向Spring本身;ApplicationContext面向使用Spring框架的开发者

Log4j2 custom plugins not working in EAR

岁酱吖の 提交于 2019-12-25 03:44:09
问题 I am migrating an EAR application from Log4J 1.2.17 to Log4J2 2.4 . Please find below the EAR structure. EAR -- APPLICATION JAR 1 (contains custom plugin) -- APPLICATION JAR 2 -- APPLICATION JAR 3 (contains custom plugin) -- APPLICATION JAR 4 -- APPLICATION WAR 1 -- APPLICATION WAR 2 -- APPLICATION WAR 3 -- OTHER THIRD PARTY APIs -- lib/log4j-api-2.4.jar -- lib/log4j-core-2.4.jar -- lib/log4j-jcl-2.4.jar -- lib/log4j-web-2.4.1.jar -- META-INF/log4j2.xml -- META-INF/MANIFEST.MF (contains all

two log4j files for EAR with two modules

喜欢而已 提交于 2019-12-25 03:13:10
问题 I have an EAR that is made up of two modules. Both expose services and share common code. Imagine that the ear has a common.jar shared by a webservices.war and webapp.war. I use log4j to log the activities. I would like to be able to have two log files (webservices.log and webapp.log) capturing the events that are specific to each of them plus all the stuff that is handled by the common.jar. How should I configure my categories and my appenders to achieve this? At the moment I have the

How can i load my log4j.xml file which is not in classpath and it present in D drive?

天涯浪子 提交于 2019-12-25 02:48:08
问题 I want to configure logging with log4j via xml; which is present in my D drive and not on classpath. I am using Spring MVC. Below is my log4j.xml <?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE log4j:configuration SYSTEM "log4j.dtd"> <log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/" debug="true"> <appender name="console" class="org.apache.log4j.ConsoleAppender"> <param name="Target" value="System.out" /> <layout class="org.apache.log4j.PatternLayout"> <param name=

Java Eclipse and jasper report: how to locate log4j.properties?

╄→尐↘猪︶ㄣ 提交于 2019-12-25 02:44:19
问题 I always get an error about this log4j:WARN No appenders could be found for logger (net.sf.jasperreports.engine.xml.JRXmlDigesterFactory). log4j:WARN Please initialize the log4j system properly. i dont know where is that log4j.properties is. is it downloadable? becouse i currently have zip pack named jasperreports-4.7.0,there are so many library there,but which one of it? please help me. i have no luck finding it in google. i have method that shows the table of my database pubic void

Logging username in log4j

狂风中的少年 提交于 2019-12-25 02:18:37
问题 I need to print username and client IP address in logs.but username is only prints for first thread using MDC in log4j.From next thread the values are printed as empty. can any one suggest how to proceed further on this . 回答1: MDC uses ThreadLocal to store values. Maybe Log4J (like Logback) uses InheritableThreadLocal which partially solves problems like yours: newly created thread inherits MDC from parent thread. I guess you are using some sort of pooling (we are rarely creating dedicated