logback的内部日志输出
所属分类 logback
浏览量 1297
logback1.2.3
public class ContextBase implements Context, LifeCycle
private StatusManager sm = new BasicStatusManager();
// Internal error messages
public interface StatusManager
// Add a new status message.
void add(Status status);
boolean add(StatusListener listener);
...
BasicStatusManager
final protected List statusList = new ArrayList();
final protected CyclicBuffer tailBuffer = new CyclicBuffer(TAIL_SIZE);
final protected LogbackLock statusListLock = new LogbackLock();
public void add(Status newStatus) {
// LBCORE-72: fire event before the count check
fireStatusAddEvent(newStatus);
count++;
if (newStatus.getLevel() > level) {
level = newStatus.getLevel();
}
synchronized (statusListLock) {
if (statusList.size() < MAX_HEADER_COUNT) {
statusList.add(newStatus);
} else {
tailBuffer.add(newStatus);
}
}
}
ch.qos.logback.core.status.OnConsoleStatusListener
public class OnConsoleStatusListener extends OnPrintStreamStatusListenerBase {
@Override
protected PrintStream getPrintStream() {
return System.out;
}
}
public void addStatusEvent(Status status) {
if (!isStarted)
return;
print(status);
}
BasicStatusManager 的使用
private URL getResource(String filename, ClassLoader myClassLoader, boolean updateStatus) {
URL url = Loader.getResource(filename, myClassLoader);
// updateStatus 为 true , 写入 status
if (updateStatus) {
statusOnResourceSearch(filename, myClassLoader, url);
}
return url;
}
private void statusOnResourceSearch(String resourceName, ClassLoader classLoader, URL url) {
StatusManager sm = loggerContext.getStatusManager();
if (url == null) {
sm.add(new InfoStatus("Could NOT find resource [" + resourceName + "]", loggerContext));
} else {
sm.add(new InfoStatus("Found resource [" + resourceName + "] at [" + url.toString() + "]", loggerContext));
multiplicityWarning(resourceName, classLoader);
}
}
08:55:51,997 |-INFO in ch.qos.logback.classic.LoggerContext[default] - Could NOT find resource [logback-test.xml]
08:55:51,997 |-INFO in ch.qos.logback.classic.LoggerContext[default] - Could NOT find resource [logback.groovy]
08:55:51,998 |-INFO in ch.qos.logback.classic.LoggerContext[default] - Found resource [logback.xml] at [file:/Users/dugang/fun/hellocode/demo/springbootdemo/target/classes/logback.xml]
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常用时间单位换算
slf4j简介
logback初始化过程
System.out重定向到slf4j
各种日志重定向到slf4j
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