java - 使用 Log4J 进行类别记录

Question

我尝试登录类别，但我不知道如何配置我的 log4j.properties。

我到底想要什么:

• 类别{安全、数据库、邮件}的每日日志文件
• 日志文件具有其类别名称
• 使用调用记录器的类记录条目(例如下面)

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;
        }
    }
}

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.

提前非常感谢您的帮助!

亲切的问候，

L.

Answer 1

一种可能的解决方案是使用 3 个独立的文件附加器(每个记录器一个)

例如数据库日志 将以下内容添加到您的 log4j.properties

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 

您必须为安全和邮件记录器重复附加程序部分