我在以编程方式配置log4j 2日志时遇到了一个问题。
请看下面的代码，我正在创建类App 3的2个对象，我想创建2个调试日志文件（每个App 3对象一个日志文件），此后每个对象都应该能够记录到相应的日志文件。
但我的代码是在创建第二个日志后将所有日志记录到第二个日志文件中。谁能帮帮忙。
程序的输出

文件名：app3_logger1.log_debug.log

2020-06-16 16:19:31,100 DEBUG app3_logger1.log [main] Hello from Log4j 2app3_logger1

文件名：app3_logger2.log_debug.log

2020-06-16 16:19:31,211 DEBUG app3_logger2.log [main] Hello from Log4j 2app3_logger2
2020-06-16 16:19:31,216 DEBUG app3_logger2.log [main] Hello from Log4j 2app3_logger2
2020-06-16 16:19:31,216 DEBUG app3_logger1.log [main] Hello from Log4j 2app3_logger1
2020-06-16 16:19:31,216 DEBUG app3_logger1.log [main] Hello from Log4j 2app3_logger1
2020-06-16 16:19:31,217 DEBUG app3_logger2.log [main] Hello from Log4j 2app3_logger2

Java类-你只需要添加log4j 2依赖来编译

public class App3 {

public Logger logger;

public static void main(String[] args) {
    App3 app1 = new App3();
    app1.initializeYourLogger("app3_logger1.log", "%d %p %c [%t] %m%n");
    app1.testProg("app3_logger1");
    App3 app2 = new App3();
    app2.initializeYourLogger("app3_logger2.log", "%d %p %c [%t] %m%n");
    app2.testProg("app3_logger2");

    app2.testProg("app3_logger2");
    app1.testProg("app3_logger1");
    app1.testProg("app3_logger1");
    app2.testProg("app3_logger2");

}

public void testProg(String s) {
    logger.debug("Hello from Log4j 2" + s);
}

public void initializeYourLogger(String fileName, String pattern) {
    this.logger = LogManager.getLogger(fileName);
    ConfigurationBuilder<BuiltConfiguration> builder = ConfigurationBuilderFactory.newConfigurationBuilder();

    builder.setStatusLevel(Level.DEBUG);
    builder.setConfigurationName(fileName);

    AppenderComponentBuilder componentBuilder = builder.newAppender("log", "File");
    componentBuilder.add(builder.newLayout("PatternLayout").addAttribute("pattern", pattern));
    RootLoggerComponentBuilder rootLogger = builder.newRootLogger(Level.DEBUG);

    LayoutComponentBuilder layoutBuilder = builder.newLayout("PatternLayout").addAttribute("pattern", pattern);
    ComponentBuilder triggeringPolicy = builder.newComponent("Policies")
            .addComponent(builder.newComponent("SizeBasedTriggeringPolicy").addAttribute("size", "10MB"));

    componentBuilder = builder.newAppender("LogToRollingErrorFile", "RollingFile")
            .add(builder.newFilter("ThresholdFilter", Filter.Result.ACCEPT, Filter.Result.DENY)
                    .addAttribute("level", Level.ERROR))
            .addAttribute("fileName", fileName + "_error.log")
            .addAttribute("filePattern", fileName + "-%d{MM-dd-yy-HH-mm-ss}_error.log").add(layoutBuilder)
            .addComponent(triggeringPolicy);
    builder.add(componentBuilder);

    componentBuilder = builder.newAppender("LogToRollingDebugFile", "RollingFile")
            .add(builder.newFilter("ThresholdFilter", Filter.Result.ACCEPT, Filter.Result.DENY)
                    .addAttribute("level", Level.DEBUG))
            .addAttribute("fileName", fileName + "_debug.log")
            .addAttribute("filePattern", fileName + "-%d{MM-dd-yy-HH-mm-ss}_debug.log").add(layoutBuilder)
            .addComponent(triggeringPolicy);
    builder.add(componentBuilder);

    AppenderRefComponentBuilder rollingError = rootLogger.getBuilder().newAppenderRef("LogToRollingErrorFile");
    AppenderRefComponentBuilder rollingDebug = rootLogger.getBuilder().newAppenderRef("LogToRollingDebugFile");
    rootLogger.add(rollingError);
    rootLogger.add(rollingDebug);
    builder.add(rootLogger);
    Configurator.reconfigure(builder.build());
}

}
这正是我想在log4j旧版本中做的，我仍然在努力使用log4j 2，

private void initLogger(String serviceName, String instance) throws IOException {
    String loggerName = serviceName+"_"+instance;
    this.logger = Logger.getLogger(loggerName);
    this.logger.removeAllAppenders();

    PatternLayout layout = new PatternLayout();
    layout.setConversionPattern("%d: %m%n");

    String loggingFolder = this.properties.getLoggingFolder();
    String debugFileName = loggingFolder+"/"+loggerName+"_debug.log";
    String errorFileName = loggingFolder+"/"+loggerName+"_error.log";

    RollingFileAppender debugAppender = new RollingFileAppender(layout, debugFileName, true);
    debugAppender.setThreshold(Level.DEBUG);
    debugAppender.setMaxFileSize("10000000");
    debugAppender.setMaxBackupIndex(49);
    logger.addAppender(debugAppender);

    RollingFileAppender errorAppender = new RollingFileAppender(layout, errorFileName, true);
    errorAppender.setThreshold(Level.ERROR);
    errorAppender.setMaxFileSize("10000000");
    errorAppender.setMaxBackupIndex(49);
    logger.addAppender(debugAppender);
}