TOC
通过 Logback 的 SiftingAppender 实现按线程分配 log 文件 文件。
SiftingAppender
<configuration scan="true" scanPeriod="60 seconds" debug="false">
<property name="USER_HOME" value="E:\\Workspace\\java\\idea\\study\\basic\\log" />
<appender name="SIFT" class="ch.qos.logback.classic.sift.SiftingAppender">
<discriminator>
<key>threadGroupId</key>
<defaultValue>unknown</defaultValue>
</discriminator>
<sift>
<appender name="FILE-${threadGroupId}" class="ch.qos.logback.core.FileAppender">
<file>${USER_HOME}/sift/SIFT-${threadGroupId}.log</file>
<append>false</append>
<layout class="ch.qos.logback.classic.PatternLayout">
<pattern>%d [%thread] %level %mdc %logger{35} - %msg%n</pattern>
</layout>
</appender>
</sift>
</appender>
<root level="DEBUG">
<appender-ref ref="SIFT"/>
</root>
</configuration>
@Slf4j
public class LogbackDemo implements Runnable{
private String counterName;
public LogbackDemo(String counterName) {
this.counterName = counterName;
}
public void run() {
MDC.put("threadGroupId", counterName);
log.info("start counter {}", counterName);
MDC.remove("threadGroupId");
}
public static void main(String[] args) {
ExecutorService executorService = Executors.newFixedThreadPool(5);
for (int i = 0; i < 10; ++i) {
executorService.execute(new LogbackDemo(String.valueOf(i)));
}
executorService.shutdown();
}
}
运行结果下图
