SL4J2-使用SL4J2 2.5在运行时附加文件名和位置

Question

我正在尝试使用SL4J2.5根据OS类型更改文件的位置。抬头看看这里和这里的其他堆栈溢出问题。我想出了以下几点：

<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="WARN" name="JCal">
    <Appenders>
        <File name="MyFile" fileName="${sys:JCalEnv}">
            <PatternLayout>
                <Pattern>%d %p [%t] %c{2} - %m%n</Pattern>
            </PatternLayout>
            <!--<HTMLLayout>-->
                <!--<title>JStreamer-log</title>-->
            <!--</HTMLLayout>-->
        </File>
        <Console name="Console" target="SYSTEM_OUT">
            <PatternLayout pattern="%highlight{%d{HH:mm:ss.SSS} %-5level %logger{36}.%M() @%L - %msg%n}{FATAL=red blink, ERROR=red, WARN=yellow bold, INFO=black, DEBUG=green bold, TRACE=blue}"/>
        </Console>
        <Async name="Async">
            <AppenderRef ref="MyFile"/>
        </Async>
    </Appenders>
    <Loggers>
        <Root level="error">
            <AppenderRef ref="Console"/>
            <AppenderRef ref="Async"/>
        </Root>
        <Root level="info">
            <AppenderRef ref="Console"/>
            <AppenderRef ref="Async"/>
        </Root>
    </Loggers>
</Configuration>

public class Test extends Application {

    static {System.setProperty("JCalEnv", getUserAppDirectory());}

    public static final Logger logger = LogManager.getLogger();
    public static double JAVA_VERSION = getVersion();


    public static void main(String[] args) {
        launch(args);
    }

    static String getUserAppDirectory() {
        General g = new General();
        if (g.isMacOS()) {
            return System.getProperty("user.home") + "/.JCal/logs/JCal-log.log";
        }
        else {
            return System.getProperty("user.home") + "/JCal/logs/JCal-log.log";
        }
    }

}

注：有。OS X文件的文件夹。

Answer 1

我创建了一个与您的测试程序基本相似的测试程序，并且在我的Mac上没有问题。

import org.apache.logging.log4j.Logger;
import org.apache.logging.log4j.LogManager;

/**
 *
 */
public class FileSubstitution {

    static {
        System.setProperty("JCalEnv", getUserAppDirectory());
        System.setProperty("log4j.configurationFile", "log4j-fileName.xml");
    }

    public static final Logger logger = LogManager.getLogger();


    public static void main(String[] args) {
        logger.info("Hello, World");
    }

    static String getUserAppDirectory() {
        String osName = System.getProperty("os.name");
        System.out.println("os = " + osName);
        if (osName.contains("Mac")) {
            return  "target/.JCal/logs/JCal-log.log";
        }
        else {
            return  "target/JCal/logs/JCal-log.log";
        }
    }
}

log4j-filename.xml的内容与上面发布的配置相同。