logging

问题 I'm trying to log information about the request that has caused an exception. I'm trying to read the Content of the request attached to the ExceptionHandlerContext below :- Although I can access other parts of the request object, its content is always empty. It seems by this point in the pipeline it has been disposed. Is there a way to capture the request body this far up the stack? public class GlobalExceptionHandler : ExceptionHandler { public override void Handle(ExceptionHandlerContext

问题 log4j.properties: # configure the root logger log4j.rootLogger=INFO, SYSLOG # configure Syslog facility LOCAL6 appender log4j.appender.SYSLOG=org.apache.log4j.net.SyslogAppender log4j.appender.SYSLOG.threshold=INFO log4j.appender.SYSLOG.syslogHost=localhost log4j.appender.SYSLOG.facility=LOCAL6 log4j.appender.SYSLOG.layout=org.apache.log4j.PatternLayout log4j.appender.SYSLOG.layout.conversionPattern="MyApp: %d\{ISO8601\}%m\n" logger class import org.apache.log4j.Logger; public class

问题 I have 4 java/Java EE applications- Two are server based j2ee applications running in WebSphere. Other two are standalone java applications. My logging framework is log4j using log4j.properties. Question 1: Can I have a same log file for logging from all the applications. Will it cause any file writing issues even if all the applications are writing at the same time? Question 2: If all the applications can write without any issues, how can I pre-append the application name to each of the log

问题 My configuration file is : <log4net xsi:noNamespaceSchemaLocation="http://csharptest.net/downloads/schema/log4net.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> <appender name="InfoFileAppender" type="log4net.Appender.RollingFileAppender"> <file value="D:/" /> <appendToFile value="true" /> <param name="DatePattern" value="yyyyMMdd".txt"" /> <rollingStyle value="Date" /> <maxSizeRollBackups value="100" /> <datePattern value="YYYY-MM-DD'.log'"/> <maximumFileSize value="1024KB" />

问题 I have a Tomcat server running a Spring-based servlet. I've set up [project root]/src/log4j.properties file as below: # Root logger option log4j.rootLogger=WARN, stdout # Redirect log messages to console 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{HH:mm:ss} %m [%c{3}:%L]%n log4j.logger.com.martincarney.bugTracker=DEBUG log4j

问题 It seems that although the log level was set to INFO, SLF4J is still evaluating the expression. package com.ab.test.slf4j; import org.apache.log4j.PropertyConfigurator; import org.slf4j.Logger; import org.slf4j.LoggerFactory; public class SimpleTest { static final Logger logger = LoggerFactory.getLogger(SimpleTest.class); public static void main(String[] args) { PropertyConfigurator.configure("log4j.properties"); logger.debug("Test " + testEnter()); logger.debug("Test {}", testEnter()); }

问题 It seems that although the log level was set to INFO, SLF4J is still evaluating the expression. package com.ab.test.slf4j; import org.apache.log4j.PropertyConfigurator; import org.slf4j.Logger; import org.slf4j.LoggerFactory; public class SimpleTest { static final Logger logger = LoggerFactory.getLogger(SimpleTest.class); public static void main(String[] args) { PropertyConfigurator.configure("log4j.properties"); logger.debug("Test " + testEnter()); logger.debug("Test {}", testEnter()); }

问题 I'm trying to set session data for users when they log in to my website. So if the user exists in db, I set a session data like : $this->session->set_userdata('user_exists','1'); Now every time i want to check if user exists and is logged i do: if($this->session->userdata('user_exists')){ //do somenthing for logged user } Now I'm wondering if this means that user is logged and exists in the database since he logged and I set him a session param, is this true? Or I'll get security problems? NB

问题 I'm trying to set session data for users when they log in to my website. So if the user exists in db, I set a session data like : $this->session->set_userdata('user_exists','1'); Now every time i want to check if user exists and is logged i do: if($this->session->userdata('user_exists')){ //do somenthing for logged user } Now I'm wondering if this means that user is logged and exists in the database since he logged and I set him a session param, is this true? Or I'll get security problems? NB

问题 There are 5 different types of logging in SSIS Event Log Text File XML File SQL Server SQL Server Profiler I am in a production environment where developers do not have access to production systems. Which logging method should be my poison of choice, and why? 回答1: If you're not going to have access to the production server, then SQL Server logging is your best bet by far. You'll have plenty of ways of viewing the logged information, for example via custom SSRS reports or web pages, or direct