log4j日志问题

Question

我在写一个servlet。 我有几个班级，其中一些班级希望它们的日志彼此分开。 这是log4j配置文件：

log4j.rootLogger=INFO, CONSOLE, SearchPdfBill, Scheduler

# CONSOLE is set to be a ConsoleAppender.
log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender
log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout
log4j.appender.CONSOLE.layout.ConversionPattern=<%p> %c{1}.%t %d{HH:mm:ss} - %m%n

# LOGFILE is set to be a file
log4j.appender.SearchPdfBill=org.apache.log4j.DailyRollingFileAppender
log4j.appender.SearchPdfBill.File = /bps/app/BpsPdfBill/BpsPdfBill.ear/BpsPdfBill.war/WEB-INF/logs/BpsPdfBill.log
#log4j.appender.SearchPdfBill.File = E:\\Workspace\\Eclipse_Workspace\\BpsPdfBill\\log\\BpsPdfBill.log
log4j.appender.SearchPdfBill.Append = true
log4j.appender.SearchPdfBill.DatePattern = '.'yyyy-MM-dd
log4j.appender.SearchPdfBill.layout=org.apache.log4j.PatternLayout
log4j.appender.SearchPdfBill.layout.ConversionPattern=<%p> %c{1}.%t %d{HH:mm:ss} - %m%n

# LOGFILE is set to be a file
log4j.appender.Scheduler=org.apache.log4j.DailyRollingFileAppender
log4j.appender.Scheduler.File = /bps/app/BpsPdfBill/BpsPdfBill.ear/BpsPdfBill.war/WEB-INF/logs/Schedule.log
#log4j.appender.Scheduler.File = E:\\Workspace\\Eclipse_Workspace\\BpsPdfBill\\log\\BpsPdfBill.log
log4j.appender.Scheduler.Append = true
log4j.appender.Scheduler.DatePattern = '.'yyyy-MM-dd
log4j.appender.Scheduler.layout=org.apache.log4j.PatternLayout
log4j.appender.Scheduler.layout.ConversionPattern=<%p> %c{1}.%t %d{HH:mm:ss} - %m%n

我在这里设置了一个记录器：

            String logDir = conf.getInitParameter("log_file_path");
        if (logDir == null) {
            initErrMsg = "Param - log_file_path cannot be empty";
            throw new ServletException(initErrMsg);
        }

        if ((logger = Logger.getLogger(SearchPdfBill.class)) != null) {
            //writeLog("Initializing log4j.");
            conf.getServletContext().log("Log4j initialized.");
        } else {
            conf.getServletContext().log("Cannot initialize log4j properly.");
        }

还有另一个记录器：

            logDir = sc.getInitParameter("log_file_path");
        if (logDir == null) {
            initErrMsg = "Param - log_file_path cannot be empty";
            try {
                throw new ServletException(initErrMsg);
            } catch (ServletException e) {
                // TODO Auto-generated catch block
                conditionalWriteLog(logEnabled, e.getMessage());
            }
        }

        if ((logger = Logger.getLogger(Scheduler.class)) != null) {
            //writeLog("Initializing log4j.");
            conditionalWriteLog(logEnabled, "Log4j initialized.");
        } else {
            conditionalWriteLog(logEnabled, "Cannot initialize log4j properly.");
        }

但是，最终两个记录器都记录了同一件事。 每个日志都相同地记录到2个文件中。 为什么？

我认为配置文件可能是错误的，但是我不知道它在哪里，有人可以帮助我纠正它吗？

Answer 1

您需要在配置文件中定义这两个记录器。 这些对象在包装内吗？ 这对于您配置它们的方式很重要。 说包是com.gunbuster：

log4j.category.com.gunbuster.SearchPdfBill=INFO, SearchPdfBill
log4j.additivity.com.gunbuster.SearchPdfBill=false

log4j.category.com.gunbuster.Scheduler=INFO, Scheduler
log4j.additivity.com.gunbuster.Scheduler=false

可additivity设置是为了防止这些记录器将添加到CONSOLE的rootLogger输出中。此外，您还应该执行第一行：

log4j.rootLogger=INFO, CONSOLE

这样rootLogger不会在这些文件中添加条目。