Java 配置log4j2以从小程序使用

应将log4j2.xml放在何处以便在小程序中使用？它能同时记录到Java控制台和用户计算机上的文件吗？

我将它放在applet资源conf/log4j2.xml中，并从applet读取它。小程序加载不正确，因此我修复了小程序代码中的字段：

public static Logger getLogger(Class className) {

    //get logger configuration
    LoggerContext loggerContext = Configurator.initialize("client", className.getClassLoader(), className.getClassLoader().getResource("conf/log4j2.xml").getFile());
    Configuration configuration = loggerContext.getConfiguration();

    //set root logger to desired level
    LoggerConfig loggerConfig = configuration.getLoggerConfig("");
    loggerConfig.setLevel(Level.INFO);

    //obtain appender
    Appender appender = obtainAppender(configuration);

    //get logger for required class
    org.apache.logging.log4j.core.Logger loggerForClass = loggerContext.getLogger(className.getName());

    //associate logger for required class with just created appender
    configuration.addLoggerAppender(loggerForClass, appender);

    return loggerForClass;
}

private static Appender obtainAppender(Configuration configuration) {

    //create appender
    TriggeringPolicy[] triggeringPolicies = {OnStartupTriggeringPolicy.createPolicy(), TimeBasedTriggeringPolicy.createPolicy("5", "true"), SizeBasedTriggeringPolicy.createPolicy("5 MB")};
    TriggeringPolicy triggeringPolicy = CompositeTriggeringPolicy.createPolicy(triggeringPolicies);
    return RollingFileAppender.createAppender(CLIENT_LOG_PATH + FileUtils.FILE_SEPARATOR + "my_client.log",
            CLIENT_LOG_PATH + FileUtils.FILE_SEPARATOR + "/$${date:yyyy-MM}/my_client-%d{MM-dd-yyyy-HH-mm}-%i.log",
            "", APPLET_APPENDER,
            "true", "true",
            triggeringPolicy, null,
            PatternLayout.createLayout("%d{dd/MM/yyyy HH:mm:ss} %-5p [%t] [%c{1}] %m%n", configuration, null, "UTF-8"),
            null, "true", configuration);
}

---

“它可以同时登录到Java控制台和用户计算机上的文件吗？”只有当代码由您进行数字签名并且最终用户信任时才可以。是的，它已签名。如何将log4j2.xml传递给applet？日志将显示在用户磁盘上的哪个位置？