程序包 java.util.logging

接口 LoggingMXBean

public interface LoggingMXBean

The management interface for the logging facility. It is recommended to use the PlatformLoggingMXBean management interface that implements all attributes defined in this LoggingMXBean. The ManagementFactory.getPlatformMXBean method can be used to obtain the PlatformLoggingMXBean object representing the management interface for logging.

There is a single global instance of the LoggingMXBean. This instance is an MXBean that can be obtained by calling the LogManager#getLoggingMXBean method or from the platform MBeanServer.

The ObjectName that uniquely identifies the management interface for logging within the MBeanServer is:

    LogManager#LOGGING_MXBEAN_NAME
 

The instance registered in the platform MBeanServer is also a PlatformLoggingMXBean.

从以下版本开始:

1.5

另请参阅:

PlatformLoggingMXBean

方法概要

限定符和类型	方法	说明
String	getLoggerLevel(String loggerName)	Gets the name of the log level associated with the specified logger.
List<String>	getLoggerNames()	Returns the list of currently registered logger names.
String	getParentLoggerName(String loggerName)	Returns the name of the parent for the specified logger.
void	setLoggerLevel(String loggerName, String levelName)	Sets the specified logger to the specified new level.

方法详细资料

getLoggerNames

List<String> getLoggerNames()

Returns the list of currently registered logger names. This method calls LogManager#getLoggerNames and returns a list of the logger names.

返回:

A list of String each of which is a currently registered Logger name.

getLoggerLevel

String getLoggerLevel(String loggerName)

Gets the name of the log level associated with the specified logger. If the specified logger does not exist, null is returned. This method first finds the logger of the given name and then returns the name of the log level by calling:

Logger#getLevel.Level#getName;

If the Level of the specified logger is null, which means that this logger's effective level is inherited from its parent, an empty string will be returned.

参数:

loggerName - The name of the Logger to be retrieved.

返回:

The name of the log level of the specified logger; or an empty string if the log level of the specified logger is null. If the specified logger does not exist, null is returned.

另请参阅:

Logger.getLevel()

setLoggerLevel

void setLoggerLevel(String loggerName,
                    String levelName)

Sets the specified logger to the specified new level. If the levelName is not null, the level of the specified logger is set to the parsed Level matching the levelName. If the levelName is null, the level of the specified logger is set to null and the effective level of the logger is inherited from its nearest ancestor with a specific (non-null) level value.

参数:

loggerName - The name of the Logger to be set. Must be non-null.

levelName - The name of the level to set on the specified logger, or null if setting the level to inherit from its nearest ancestor.

抛出:

IllegalArgumentException - if the specified logger does not exist, or levelName is not a valid level name.

SecurityException - if a security manager exists and if the caller does not have LoggingPermission("control").

另请参阅:

Logger.setLevel(java.util.logging.Level)

getParentLoggerName

String getParentLoggerName(String loggerName)

Returns the name of the parent for the specified logger. If the specified logger does not exist, null is returned. If the specified logger is the root Logger in the namespace, the result will be an empty string.

参数:

loggerName - The name of a Logger.

返回:

the name of the nearest existing parent logger; an empty string if the specified logger is the root logger. If the specified logger does not exist, null is returned.