Java Logger 仅用于文件，无屏幕输出
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Java Logger only to file, no screen output
提问by Jaran
I have quite a simple problem but can't find a solution for it. I have a logger with a file handler added, but it still spams the hell out of my console. How could I get the logger to solely route all output to a file, with NO console outputs?
我有一个很简单的问题，但找不到解决方案。我有一个添加了文件处理程序的记录器，但它仍然在我的控制台中发送垃圾邮件。我怎样才能让记录器将所有输出单独路由到一个文件，而没有控制台输出？
采纳答案by Bombe
Remove all handlers (using Logger.getHandlers()and calling Logger.removeHandler()for each handler) from the root logger before adding your file handler.
在添加文件处理程序之前，从根记录器中删除所有处理程序（使用Logger.getHandlers()并为每个处理程序调用Logger.removeHandler()）。
回答by Jaran
Old question but to help other developers:
老问题，但要帮助其他开发人员：
You can also just use logger.setUseParentHandlers(false)on your logger.
您也可以只logger.setUseParentHandlers(false)在记录器上使用。
回答by Lachlan
The simplest way to guarantee that nothing will be written to the console is to put:
保证不会向控制台写入任何内容的最简单方法是：
java.util.logging.ConsoleHandler.level = NONE
in your logging configuration file.
在您的日志记录配置文件中。
回答by Bob Yoplait
Use log4j with
使用 log4j
import org.apache.log4j.Logger;
Logger logger = Logger.getLogger("com.whatever");
PropertyConfigurator.configure("file-log4j.properties");
and set your display levels in file-log4j.properties:
并在 file-log4j.properties 中设置您的显示级别：
# Root logger option
log4j.rootLogger=INFO, file
# Direct log messages to a log file
log4j.appender.file=org.apache.log4j.RollingFileAppender
log4j.appender.file.File=index-service.log
log4j.appender.file.MaxFileSize=1MB
log4j.appender.file.MaxBackupIndex=1
log4j.appender.file.layout=org.apache.log4j.PatternLayout
log4j.appender.file.layout.ConversionPattern=%d{ABSOLUTE} %5p %c{1}:%L - %m%n
log4j.appender.file.Append=false
回答by Nguy?n Anh Qu?
I use:
我用：
Logger logger = Logger.getLogger("MyLog");
Logger parentLog= logger.getParent();
if (parentLog!=null&&parentLog.getHandlers().length>0) parentLog.removeHandler(parentLog.getHandlers()[0]);
