仅使用logback从一个类显示日志

Question

我试图将日志显示到控制台以及文件但是在文件中我只想要从一个特定类显示的某些日志,我不知道如何做到这一点.下面是我的logback.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE configuration>

<configuration>

  <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
        <encoder>
            <pattern>{ "date_time":"%date", "thread":"[%thread]", "log_level":"%-5level", "class_name":"%logger{0}", "log_message":"%msg" }%n</pattern>
        </encoder>
    </appender>

  <appender name="FILE" class="ch.qos.logback.core.FileAppender">
    <file> test.txt </file>
    <append>false</append>
    <encoder>
        <pattern>{ "date_time":"%date", "thread":"[%thread]", "log_level":"%-5level", "class_name":"%logger{0}", "log_message":"%msg" }%n</pattern>
    </encoder>
  </appender>

  <root level="info">
    <appender-ref ref="FILE" />
    <appender-ref ref="STDOUT" />
  </root>

</configuration>

Answer 1

只需logger为您的"一个特定类" 声明一个,然后将该记录器与您的FILEappender 相关联.

例如:

<appender name="FILE" class="ch.qos.logback.core.FileAppender">
    <file>test.log</file>
    <encoder>
        <pattern>{ "date_time":"%date", "thread":"[%thread]", "log_level":"%-5level", "class_name":"%logger{0}", "log_message":"%msg" }%n</pattern>
    </encoder>
</appender>

<logger name="your.particular.Class">
    <appender-ref ref="FILE" />
</logger>

<root level="info">
    <appender-ref ref="STDOUT" />
</root>

这将确保所发出的任何日志事件your.particular.Class都仅指向FILE附加器和其他所有的日志将被定向仅在STDOUT附加目的地.