Log4j2:如何定义多个记录器

Question

我已经定义了多个记录器，如下所示(com.xyz 和 org.xyz)。 Log4j2 忽略第一个记录器定义并仅加载第二个。在示例中，未加载 org.xyz。

{
  "configuration": {
    "name": "Default",
    "appenders": {
      "Console": {
        "name": "Console-Appender",
        "target": "SYSTEM_OUT",
        "PatternLayout": {"pattern": "[%-5level] %d{yyyy-MM-dd HH:mm:ss.SSS} [%t] %c{1} - %msg%n"}
      }
    },
    "loggers": {
      "logger": {
        "name": "org.xyz",
        "level": "info",
        "appender-ref": [{"ref": "Console-Appender","level": "info"}]
      },
      "logger": {
        "name": "com.xyz",
        "level": "debug",
        "appender-ref": [{"ref": "Console-Appender", "level": "debug"}]
      },
      "root": {
        "level": "warn",
        "appender-ref": {"ref": "Console-Appender","level": "warn"}
      }
    }
  }
}

在 log4j2 调试消息下方找到。

DEBUG StatusLogger Processing node for object loggers
DEBUG StatusLogger Processing node for object logger
DEBUG StatusLogger Node name is of type STRING
DEBUG StatusLogger Node level is of type STRING
DEBUG StatusLogger Node additivity is of type STRING
DEBUG StatusLogger Processing node for array appender-ref
DEBUG StatusLogger Processing appender-ref[0]
DEBUG StatusLogger Returning logger with parent loggers of type logger:class     org.apache.logging.log4j.core.config.LoggerConfig
DEBUG StatusLogger Processing node for object root
DEBUG StatusLogger Node level is of type STRING
DEBUG StatusLogger Processing node for object appender-ref
DEBUG StatusLogger Node ref is of type STRING
DEBUG StatusLogger Node level is of type STRING
DEBUG StatusLogger Returning appender-ref with parent root of type appender-ref:class org.apache.logging.log4j.core.config.AppenderRef
DEBUG StatusLogger Returning root with parent loggers of type root:class org.apache.logging.log4j.core.config.LoggerConfig$RootLogger
DEBUG StatusLogger Returning loggers with parent root of type loggers:class org.apache.logging.log4j.core.config.LoggersPlugin
DEBUG StatusLogger Completed parsing configuration
DEBUG StatusLogger Building Plugin[name=logger, class=org.apache.logging.log4j.core.config.LoggerConfig].
DEBUG StatusLogger createLogger(additivity="false", level="DEBUG", name="com.xyz", includeLocation="null", ={Console-Appender}, ={}, Configuration(Default), Filter=null)
DEBUG StatusLogger Building Plugin[name=appender-ref, class=org.apache.logging.log4j.core.config.AppenderRef].
DEBUG StatusLogger createAppenderRef(ref="Console-Appender", level="WARN", Filter=null)
DEBUG StatusLogger Building Plugin[name=root, class=org.apache.logging.log4j.core.config.LoggerConfig$RootLogger].
DEBUG StatusLogger createLogger(additivity="null", level="WARN", includeLocation="null", ={Console-Appender}, ={}, Configuration(Default), Filter=null)
DEBUG StatusLogger Building Plugin[name=loggers, class=org.apache.logging.log4j.core.config.LoggersPlugin].
DEBUG StatusLogger createLoggers(={com.xyz, root})

我的配置是否正确？

Answer 1

用于在 log4j2 中定义多个记录器JSON配置文件，你应该声明logger作为array .

与 logger array ，您的配置文件将更改为以下 -

{
  "configuration": {
    "name": "Default",
    "appenders": {
      "Console": {
        "name": "Console-Appender",
        "target": "SYSTEM_OUT",
        "PatternLayout": {"pattern": "[%-5level] %d{yyyy-MM-dd HH:mm:ss.SSS} [%t] %c{1} - %msg%n"}
      }
    },
    "loggers": {
      "logger": [
                {
                   "name": "org.xyz",
                   "level": "info",
                   "appender-ref": [{"ref": "Console-Appender","level": "info"}]
                },
                {
                   "name": "com.xyz",
                   "level": "debug",
                   "appender-ref": [{"ref": "Console-Appender", "level": "debug"}] 
                }
                ],
      "root": {
        "level": "warn",
        "appender-ref": {"ref": "Console-Appender","level": "warn"}
      }
    }
  }
}