Question

我正在使用LoggerContext在代码中设置log4j2，xml路径并获取未找到log4j2配置文件错误日志。

代码

    LoggerContext context = (org.apache.logging.log4j.core.LoggerContext)LogManager.getContext(false);
    String  fileName = "\\resources\\log4j2.xml";
    context.setConfigLocation(new File(fileName).toURI());
    LOG.debug("This Will Be Printed On Debug");
    LOG.info("This Will Be Printed On Info");
    LOG.warn("This Will Be Printed On Warn");

输出

ERROR StatusLogger No log4j2 configuration file found. Using default configuration: logging only 
errors to the console. Set system property 'org.apache.logging.log4j.simplelog.StatusLogger.level' to 
TRACE to show Log4j2 internal initialization logging.
DEBUG | 2020-06-19 14:16:21 | [main] | (Log4j2Example.java:22) - This Will Be Printed On Debug
INFO  | 2020-06-19 14:16:21 | [main] | (Log4j2Example.java:23) - This Will Be Printed On Info
WARN  | 2020-06-19 14:16:21 | [main] | (Log4j2Example.java:24) - This Will Be Printed On Warn

在这里，我得到了预期的结果，但在启动时也得到了错误日志。如果我在Eclipse的类路径中设置了log4j2，xml，则不会显示任何错误。

使用LoggerContext时如何删除错误日志？

Answer 1

调用LogManager.getContext（false）时，Log4j将初始化。这会导致出现“找不到log4j2配置文件”消息，因为您尚未进行配置。

尝试使用Configurator.initialize("My Config", "\\resources\\log4j2.xml");

使用LoggerContext后，在log4j2的控制台中显示错误日志

1 个答案: