Question

我已经使用程序化配置配置了Log4j2。请在下面找到我的代码。我在jdk1.8上运行此代码。日志文件正确生成但日志文件名未按模式定义正确创建。文件将使用test_28_12_2016_24.log之类的名称生成看起来SimpleDateFormat没有得到认可。如果我遗漏任何东西，请告诉我。

public class Test {

    public static void main(String args[]){

        public final String LOG_FILE_PATTERN = "-%d{dd-MM-yyyy-HH}.%i.log";
        public final String MY_LOG_PATTERN_LAYOUT = "%msg%n";   

        /* Configuring Logger context */
        private LoggerContext context = (LoggerContext) LogManager.getContext(false);
        final Configuration config = context.getConfiguration();
        final Layout<? extends Serializable> layout = PatternLayout.createLayout(MY_LOG_PATTERN_LAYOUT, null, config, null,null,true, true, null, null);


        /* Configuring policies */
        final TimeBasedTriggeringPolicy timeBasedTriggeringPolicy = TimeBasedTriggeringPolicy.createPolicy(TimeUnit.DAYS.toMillis(1), "true");
        final SizeBasedTriggeringPolicy sizeBasedTriggeringPolicy = SizeBasedTriggeringPolicy.createPolicy(1024*1024*10);
        final CompositeTriggeringPolicy policy = CompositeTriggeringPolicy.createPolicy(timeBasedTriggeringPolicy,sizeBasedTriggeringPolicy);
        final DefaultRolloverStrategy strategy = DefaultRolloverStrategy.createStrategy("50", "1", null,null, null, false, config);

        /* Creating appenders */
        final Appender appender = RollingFileAppender.createAppender("target/logs/test.log" , LOG_FILE_PATTERN, "true", "log-file-appender", null, null, "true", policy, strategy, layout, null, null, null, null, config);
        appender.start();
        AppenderRef ref = AppenderRef.createAppenderRef("File", null, null);
        AppenderRef[] refs = new AppenderRef[] {ref};

        /*Creating loggers*/
        LoggerConfig loggerConfig = LoggerConfig.createLogger("true", Level.ERROR, "FILE_LOGGER", "com.*", refs, null, config, null);
        loggerConfig.addAppender(appender,null,null);
        config.addLogger("logger" , loggerConfig);
        context.updateLoggers();
    }

    public void writelogs() {
        Logger logger = context.getLogger("logger");
        logger.error("test data");
    }
}

Answer 1

日志文件模式应包含同一目录中多个日志的文件名，但我认为问题在于文件模式中没有正确的目录。它可能正在创建或未能在另一个目录中创建文件。

文件模式应该是这样的。

"target/logs/test-%d{dd-MM-yyyy-HH}.%i.log"

Log4j2编程配置日志文件名问题

1 个答案: