log4j

How to output logs from a Shell Script launched within Java in a log4j RollingFileAppender?

由 只谈情不闲聊 提交于 2019-12-22 08:27:18
问题 I have a Java Webapplication running on Tomcat, executing Shell scripts at runtime in which many "echo" commands are executed. My problem is that I'd like all my logs to appear in a log4j RollingFileAppender, ie: Java Log4j logs (which is easy to do) Shell echo commands logs as well (which is the tricky part to me) The Shell scripts are run via java.lang.Process class. So far, I've managed to output the inputStream and errorStream of the process to System.out thanks to the log4j-provided

log4j:ERROR Error occured while converting date

由 。_饼干妹妹 提交于 2019-12-22 06:21:42
问题 I found this exception in my logs: log4j:ERROR Error occured while converting date. java.lang.NullPointerException at java.lang.System.arraycopy(Native Method) at java.lang.AbstractStringBuilder.getChars(AbstractStringBuilder.java:328) at java.lang.StringBuffer.getChars(StringBuffer.java:201) at org.apache.log4j.helpers.ISO8601DateFormat.format(ISO8601DateFormat.java:130) at java.text.DateFormat.format(DateFormat.java:316) at org.apache.log4j.helpers.PatternParser$DatePatternConverter.convert

How to configure log4j to log only info messages and higher?

由 走远了吗. 提交于 2019-12-22 05:54:40
问题 I don't use config or xml files for configuring log4j as there no need to configure it deeply. I only need to print messages to the console. so I do this: BasicConfigurator.configure(); and to print only info and higher messages I do this: Logger LOG = Logger.getLogger(MyClass.class) LOG.setLevel(Level.INFO); But nevertheless I see debug messages in the console too. But I only need info and actually error messages to be printed. How to do this? UPD: I created a config file with the which

How to configure the log4j output file path in web.xml and log4j.properties?

由 怎甘沉沦 提交于 2019-12-22 04:49:12
问题 I have developed a web application where i can register a employee. My web.xml <?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5"> <display-name>Employee Registration</display-name> <welcome-file-list>

myBatis + log4j简单实例

由 ε祈祈猫儿з 提交于 2019-12-22 04:48:09
代码段 //根据xml创建SqlSessionFactory对象 String resource = "mybatisConfig.xml"; InputStream inputStream = Resources.getResourceAsStream(resource); SqlSessionFactory sqlSessionFactory = new SqlSessionFactoryBuilder().build(inputStream); //获取SqlSession实例，通过代理实现能直接执行已经映射的sql语句 try (SqlSession session = sqlSessionFactory.openSession()) { EmployeeMapper mapper = session.getMapper(EmployeeMapper.class); List<Employee> employee = mapper.selectAll(); System.out.println(employee); } 过程 加载mybatisConfig.xml全局配置文件 配置log4j日志记录（<settings>标签） 配置数据库mysql（<environments>标签） 加载映射文件mapper（<mappers>标签） 加载dao层具体sql语句

Logging Spring bean creation / dependency injection

由 眉间皱痕 提交于 2019-12-22 04:29:51
问题 I'm looking for a way to set up Log4j (or any other logger) so that I can see in log whenever Spring creates a bean or sets a bean property. Eg. something like this: 1:00:00 Creating bean Foo (Foo@ef5c94) 1:00:01 Creating bean Bar (Bar@147a87e) 1:00:02 Setting bean Foo (Foo@ef5c94) to Bar (Bar@147a87e) (...) Is this easily possible? I'm using Spring 2.5.6 (no choice there :/ ) and Log4j (version doesn't matter I expect). 回答1: Looks like org.springframework.beans.factory.support

Best way to send apache-spark loggin to redis/logstash on an Amazon EMR cluster [closed]

由 我怕爱的太早我们不能终老 提交于 2019-12-22 04:22:47
问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 2 years ago . I spark-submit jobs on an Amazon EMR cluster. I'd like all spark logging to be sent to redis/logstash. What is the proper way to configure spark under EMR to do this? Keep log4j: Add a bootstrap action to modify /home/hadoop/spark/conf/log4j.properties to add an appender? However, this file already contains a

how to create MyLogger?

由 ∥☆過路亽．° 提交于 2019-12-22 03:52:07
问题 I use log4j for logging. And I would like to modify methods: warn(..), error(..). I would like to modify message in this methods. So, is there any way, how to create my own logger? public class MyLogger extends Logger { protected MyLogger(String name) { super(name); } @Override public void error(Object message) { message = "test - " + message; super.error(message); } } And in class call: private static final Logger logger = MyLogger.getLogger(TestClass.class); logger.error("error message");

Using Logback but Log4j started displaying WARN no Appenders

由 混江龙づ霸主 提交于 2019-12-22 03:22:47
问题 I am using logback for my logging and it has been working however; the other day I started getting a warning log4j:WARN No appenders could be found for logger (org.apache.axis.i18n.ProjectResourceBundle). log4j:WARN Please initialize the log4j system properly. I am not using log4j nor have I ever with this project. I have a logback.xml in my resources folder. Any ideas on why this warning started to show up? 回答1: You must be using a library that does use log4j. Can you post anything more

java (log4j) logging filter by object type

由 巧了我就是萌 提交于 2019-12-22 01:07:11
问题 I have a logging statement currently implemented with log4j: log.info("Failed to create message for {}", CustomerData); This will log some sensitive data in CustomerData . Is there a way to block logging of any instances of CustomerData ? Maybe in log4j configuration or via a custom filter? If not possible with log4j, how about other logging frameworks? 回答1: Log4j2 offers a number of ways to accomplish this: Filters Log4j2 allows you to configure filters on specific loggers, or on specific
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