如何使用java.util.logging更改存储日志的目录*

我在tomcat下运行一个web应用程序，并且我已经像这样配置了日志记录（通过ContextInitializedHook）：

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不幸的是，日志不是在/var/log下创建的。它们是在/var/lib/tomcat6/like/var/lib/tomcat6/myapp_2012-08-13_0.log中创建的。我想将其更改为/var/log/myapp/like:/var/log/myapp/myapp_2012-08-13_0.log我在文件记录器上看不到任何可以实现此目的的设置。我是否遗漏了一些明显的东西，或者是否有办法实现它？

您可以使用JVM属性在文件名前面加上前缀。在下面的示例过程中，类似于-Dlog\u directory=C:\logs

package sample;

import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.logging.FileHandler;
import java.util.logging.Handler;
import java.util.logging.Level;
import java.util.logging.Logger;
import java.util.logging.XMLFormatter;

import org.apache.commons.lang.StringUtils;

public class stackoverflow11937181 {

    /**
     * @param args
     */
    public static void main(String[] args) {
        Logger rootLogger = Logger.getLogger("");
        String date = new SimpleDateFormat("yyyy-MM-dd").format(new Date());
        String logDirectory = System.getProperty("log_directory");
        String logFile = (logDirectory == null ? StringUtils.EMPTY : logDirectory) + "/myapp_" + date + "_%u.log";
        try {
            FileHandler logHandler = new FileHandler(logFile, 524288000, // 500 MB max size
                    1, // one log file at a time
                    true // if it exists: append, don't overwrite
            );
            Level defaultLevel = Level.INFO;
            logHandler.setFormatter(new XMLFormatter());
            logHandler.setLevel(java.util.logging.Level.FINE);
            for (Handler h : rootLogger.getHandlers()) {
                rootLogger.removeHandler(h);
            }
            rootLogger.setLevel(defaultLevel);
            rootLogger.addHandler(logHandler);

        }
        catch (SecurityException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

        rootLogger.log(Level.FINE, "sample");

    }

}

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您可以使用JVM属性作为文件名的前缀。在下面的示例过程中，类似于-Dlog\u directory=C:\logs

package sample;

import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.logging.FileHandler;
import java.util.logging.Handler;
import java.util.logging.Level;
import java.util.logging.Logger;
import java.util.logging.XMLFormatter;

import org.apache.commons.lang.StringUtils;

public class stackoverflow11937181 {

    /**
     * @param args
     */
    public static void main(String[] args) {
        Logger rootLogger = Logger.getLogger("");
        String date = new SimpleDateFormat("yyyy-MM-dd").format(new Date());
        String logDirectory = System.getProperty("log_directory");
        String logFile = (logDirectory == null ? StringUtils.EMPTY : logDirectory) + "/myapp_" + date + "_%u.log";
        try {
            FileHandler logHandler = new FileHandler(logFile, 524288000, // 500 MB max size
                    1, // one log file at a time
                    true // if it exists: append, don't overwrite
            );
            Level defaultLevel = Level.INFO;
            logHandler.setFormatter(new XMLFormatter());
            logHandler.setLevel(java.util.logging.Level.FINE);
            for (Handler h : rootLogger.getHandlers()) {
                rootLogger.removeHandler(h);
            }
            rootLogger.setLevel(defaultLevel);
            rootLogger.addHandler(logHandler);

        }
        catch (SecurityException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

        rootLogger.log(Level.FINE, "sample");

    }

}

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啊，这很明显：一个带有绝对路径的绝对文件名。我应该想到这一点。看来是可行的，thx.Ah，这是显而易见的：一个带有绝对路径的绝对文件名。我应该想到这一点。看来有用，谢谢。