log4j configuration

logger, and the last is the log information.In this program, the log4j is initialized with a basic configuration class Basicconfigurator provided by log4j. But it's not usually done when it's actually used, because it's a bit of a "hard" code. In the future, if you want to modify the configuration of the

. Output results(1) First, the information of the console(2) Look at the output file againThe content is as follows, and the discovery has been output to the corresponding document as required.Second, log4j basic use methodLOG4J consists of three important components: the priority of the log information, the output destination of the log information, and the output format of the log information. The priority of log information is high to low with erro

') 'datestr', x. befor_num, x. after_num, x. physician_id, y. department_id, y. clinic_id, y. true_name, y. avatar, y. title, y. telephone FROM datenumber x right join physician y on x. physician_id = y. id AND (x. 'date'> =? AND x. 'date' [Datenumber. pageSelect]-=> Parameters: 2017-3-28 (String), 2017-4-4 (String), 1 (Long)[Datenumber. pageSelect]- The output content is terrible. The database connection characters and username and password are all output. Be careful. However, the SQL statemen

logger.error ("This is the error message.");} 4. Output results(1) First, the information of the console(2) Look at the output file againThe content is as follows, and the discovery has been output to the corresponding document as required.Second, log4j basic use methodLOG4J consists of three important components: the priority of the log information, the output destination of the log information, and the output format of the log information

results(1) First, the information of the console(2) Look at the output file againThe content is as follows, and the discovery has been output to the corresponding document as required.Second, log4j basic use methodLOG4J consists of three important components: the priority of the log information, the output destination of the log information, and the output format of the log information. The priority of log information is high to low with error, WARN,

."); } 4. Output result (1) First is the information of the console(2) again to see the output of the fileas follows, it is found that the required output to the corresponding document.Second, the basic use method of log4j Log4j is composed of three important components: priority of log information, output destination of log information, and output format of log information. Log information prior

I have been using logs encapsulated by others for some time. I feel very curious when I have configured logs. Next we will record the common usage of using log4j to process logs. As for what log4j is, I don't know what it is, and I don't think it is necessary to go too deep for the moment. I only know that it is a good choice to process logs.Game starts References 1) official PDF document 2) Configure

."); } 4. Output result (1) First is the information of the console (2) again to see the output of the file as follows, it is found that the required output to the corresponding document. Second, the basic use method of log4j Log4j is composed of three important components: priority of log information, output destination of log information, and output format of log information. Log information

Introduction to log4j Recently, I have sorted out the log output specifications of the company's products, which involves the use of log4j. 1 log4j configuration instructions 1.1 configuration file Log4j can be dynamically set thr

. Output results(1) First, the information of the console(2) Look at the output file againThe content is as follows, and the discovery has been output to the corresponding document as required.Second, log4j basic use methodLOG4J consists of three important components: the priority of the log information, the output destination of the log information, and the output format of the log information. The priority of log information is high to low with erro

During application development, logs can be used to debug programs and track program running tracks. During the program running process, you can record the running status of the program and use it for auditing. Log4j is a popular implementation that supports multiple log implementations. This section describes how to use log4j logs. The use of log4j logs includes

logger.info ("This is info."); Record error level information logger.error ("This is error message."); } 4. Output result (1) First is the information of the console (2) again to see the output of the file as follows, it is found that the required output to the corresponding document. second, the basic use method of log4j Log4j is composed of three important c

1. Obtain log4j. Jar Download address of log4j.zip: http://labs.mop.com/apache-mirror/logging/log4j/1.2.17/log4j-1.2.17.zip Decompress log4j.zip to get the log4j-1.2.17.jar 2. Dependency log4j-1.2.17.jar in eclipse Right-click Project -- Build path -- configure buil

Spring integrates log4j in Java Web Engineering You may see this article in [Spring] Spring3.0.5 download, configuration, and Helloworld (click to open the link. If Spring does not integrate log4j directly, the following warning is displayed about Spring integrated log4j. This is annoying. On the one hand, I advocate H

layout formatHTMLLayout (HTML table layout)SimpleLayout (Level and information string containing log information)TTCCLayout (including the log generation time, execution thread, category, and other information)PatternLayout (you can flexibly specify the layout format, which is commonly used)Log4j. appender. a. layout. ConversionPattern = % d {yyyy-MM-dd HH: mm: ss} % p [% c] % m % n log output formatLog4j. appender. ServerDailyRollingFile. Append = t

1, what is log4j? Log4j is an open source project for Apache, by using log4j, we can control the destination of log information delivery is console, file, GUI component, even interface server, NT Event recorder, UNIX syslog daemon, etc. We can also control the output format of each log, and by defining the level of each log information, we can control the log gen

output: Debug, info, warn, error, and fatal, only information of a level higher than the level specified in the configuration can be truly output, so that you can easily configure the content to be output under different circumstances without changing the code, this is really convenient.3. log4j configuration fileAlthough co