[英]Category Logging With Log4J
I try to log in categories, but I have no idea how to configure my log4j.properties. 我尝试登录类别,但不知道如何配置log4j.properties。
What do I want exactly: 我到底要什么:
Here is what I have: 这是我所拥有的:
public class CategoryLogger {
private static Logger securityLogger = Logger.getLogger("SECURITY");
private static Logger databaseLogger = Logger.getLogger("DATABASE");
private static Logger mailLogger = Logger.getLogger("MAIL");
public void securitylog(LogLevel level, String message) {
this.log(securityLogger, level, message);
}
public void databaselog(LogLevel level, String message) {
this.log(databaseLogger, level, message);
}
public void maillog(LogLevel level, String message) {
this.log(mailLogger, level, message);
}
private void log(Logger logger, LogLevel level, String message) {
switch (level) {
case TRACE:
logger.trace(message);
break;
case DEBUG:
logger.debug(message);
break;
case INFO:
logger.info(message);
break;
case WARN:
logger.warn(message);
break;
case ERROR:
logger.error(message);
break;
case FATAL:
logger.fatal(message);
break;
default:
break;
}
}
}
The logs should look like this: 日志应如下所示:
database-2018-09-28.log
DATABASE | 2018-09-28 20:02:19 | INFO | DAO:22 | This is a info.
DATABASE | 2018-09-28 20:02:19 | WARN | DAO:23 | This is a warn.
DATABASE | 2018-09-28 20:02:19 | ERROR | DAO:24 | This is a error.
DATABASE | 2018-09-28 20:02:19 | FATAL | DAO:25 | This is a fatal.
security-2018-09-28.log
SECURITY | 2018-09-28 20:02:19 | INFO | SimpleAccess:33 | This is a info.
SECURITY | 2018-09-28 20:02:19 | WARN | SimpleAccess:34 | This is a warn.
SECURITY | 2018-09-28 20:02:19 | ERROR | SimpleAccess:35 | This is a error.
SECURITY | 2018-09-28 20:02:19 | FATAL | SimpleAccess:36 | This is a fatal.
mail-2018-09-28.log
MAIL | 2018-09-28 20:02:19 | INFO | MailSender:44 | This is a info.
MAIL | 2018-09-28 20:02:19 | WARN | MailSender:45 | This is a warn.
MAIL | 2018-09-28 20:02:19 | ERROR | MailSender:46 | This is a error.
MAIL | 2018-09-28 20:02:19 | FATAL | MailSender:47 | This is a fatal.
Thanks a lot in advance for any help! 提前非常感谢您的帮助!
Kind Regards, 亲切的问候,
L. L.
A possible solution is to use 3 separate file appender (one for each logger) 一种可能的解决方案是使用3个单独的文件追加器(每个记录器一个)
for example for the database logs add the followings to your log4j.properties 例如对于数据库日志,将以下内容添加到您的log4j.properties中
log4j.appender.DATABASE_RFA=org.apache.log4j.DailyRollingFileAppender
log4j.appender.DATABASE_RFA.File=/path/to/your/log/folder/database-
log4j.appender.DATABASE_RFA.DatePattern='.'yyyy-MM-dd'
log4j.appender.DATABASE_RFA.layout=org.apache.log4j.PatternLayout
log4j.appender.DATABASE_RFA.layout.ConversionPattern=DATABASE | %d{yyyy-MM-dd HH:mm:ss} | %p | %c{1}:%L | %m%n
log4j.logger.DATABASE = info, DATABASE_RFA
log4j.logger.SECURITY = info, SECURITY_RFA
log4j.logger.MAIL = info, MAIL_RFA
you have to repeat the appender section for SECURITY and MAIL loggers 您必须重复SECURITY和MAIL记录器的appender部分
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