what debug level

Info: At least one JAR is scanned for TLDs yet contained no TLDs. Enable Debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and

Official website: http://logging.apache.org/log4j/1.2/Log4j is a project of the Apache Foundation, a log recorder (Logger) is the core component of log processing, with a log4j of 7 levels. Debug level: Indicates that fine-grained informational

Abnormal Javax.servlet.jsp.JspException:Cannot Retrieve mapping for Action/login (/login is your action name) Possible causes The action is not defined in Struts-config.xml, or no matching action is found, such as using Login.do processing, if the

#uname-A # Get Kernel version (and BSD version) Power off #shutdown-h shutdown #logout logoff #reboot-N Reboot #exit Exit Current User #date Date #cal Calendar #echo $LANG Display System encoding #echo $PATH View the PATH variable #env (set) to view

DBCP, C3P0, Proxool, BONECP and other open source database connection pool Basic Introduction Brief introduction Use evaluation Project Home DBCP DBCP is a database connection pool that relies on the Jakarta

In the development of more common or log4j, basically every developer knows, but the use of Logback output log, the estimated use of not many people, in fact, these two are SLF4J implementation, but also the same author. Log4j is an open source

Two ways to configure a Yum source Because Redhat Yum online update is charged, if not registered words can not be used, if you want to use, you need to redhat yum Uninstall, restart the installation, and then configure other sources, the following

PHP is an efficient network programming language, because it has the advantages of flexible writing, fast running and so on, quickly become the preferred language of web programmers. A recent authoritative survey showed that 31.6% of websites now

Jenkins installation on CentOS Article Source: http://www.cnblogs.com/zhangqingsh/archive/2013/03/19/2968998.html 1. Add Jenkins Source (repository): $ sudo wget-o/etc/yum.repos.d/jenkins.repo http://jenkins-ci.org/redhat/jenkins.repo $ sudo

PHP is an efficient network programming language, because it has the advantages of flexible writing, fast running and so on, quickly become the preferred language of web programmers. A recent authoritative survey showed that 31.6% of websites now

Python is a weakly typed language, and many of the friends who turn from C + + are not very comfortable at first. For example, when declaring a function, you cannot specify the type of the parameter. The analogy with C is that all parameters are

Write at the beginning of the class xxxaction to output: Private ABC logger = abc.getinstance (Xxxaction.class); Write to the method in which you want to output the information class: Stacktraceelement stack[] = (new Throwable ()). Getstacktrace ();

Previously developed Kjava game, did not develop how long, and then turn to Android, contact with Android are aware that Android has log print log, recently due to job needs, not print log ... Although before there are some information to print,

SSH Consolidated web.xml filter and listener configuration Delay Load Filter Hibernate allows deferred loading of associated objects and properties, but must ensure that deferred loading is limited to the same Hibernate session scope. If the

First, static deployment 1. Copy the Web project files directly into the WebApps directory Tomcat's WebApps directory is the tomcat default application directory that loads all applications under this directory when the server is started. So you can

As the current most popular application, Docker does exist in its unique, whether the program ape or Yun-dimensional should have heard of Docker's name, Docker has gone through a lot of pits, the latest version is the v1.11.0 version, it should be

Faster execution Speed: Based on our previous work on log4j, logback rewrites the internal implementation, which can be 10 times times faster than before in some specific scenarios. While ensuring that logback components are faster, there is less

Brief Introduction Haproxy provides high availability, load balancing, and proxies based on TCP and HTTP applications to support virtual hosts, a free, fast, and reliable solution. Haproxy is especially useful for Web sites that are heavily loaded,

Recently used log4j write log when found on the Internet are all the same, write a good why not all, write a full point of no format, look tired. Here the online collection of the collation, and all on the machine to test successfully. I don't think

Installation and startup Linux can download mycat-server-xxxxx.linux.tar.gz decompression in a directory, recommended in the Usr/local/mycat directory, note that the directory can not have spaces. Renamed after downloading, extract to/usr/server,