版本

2.2.x

创建logback javaconfig

myapp.BasicConfigurator public class BasicConfigurator extends ch.qos.logback.core.spi.ContextAwareBase implements ch.qos.logback.classic.spi.Configurator { public BasicConfigurator() { } public void configure(LoggerContext lc) { addInfo("Setting up default configuration."); ConsoleAppender<ILoggingEvent> ca = new ConsoleAppender<ILoggingEvent>(); ca.setContext(lc); ca.setName("console"); LayoutWrappingEncoder<ILoggingEvent> encoder = new LayoutWrappingEncoder<ILoggingEvent>(); encoder.setContext(lc); // same as // PatternLayout layout = new PatternLayout(); // layout.setPattern("%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n"); TTLLLayout layout = new TTLLLayout(); layout.setContext(lc); layout.start(); encoder.setLayout(layout); ca.setEncoder(encoder); ca.start(); Logger rootLogger = lc.getLogger(Logger.ROOT_LOGGER_NAME); rootLogger.addAppender(ca); } }

创建LoggingSystem

继承springboot默认的LogbackLoggingSystem，并修改默认日志配置实现方法

myapp.LoggingSystem public class LoggingSystem extends LogbackLoggingSystem { public LoggingSystem(ClassLoader classLoader) { super(classLoader); } @Override protected void loadDefaults(LoggingInitializationContext initializationContext, LogFile logFile) { LoggerContext context = getLoggerContext(); stopAndReset(context); // 调用自定义的logback javaconfig new myapp.BasicConfigurator().configure(context); context.setPackagingDataEnabled(true); } private LoggerContext getLoggerContext() { ILoggerFactory factory = StaticLoggerBinder.getSingleton().getLoggerFactory(); Assert.isInstanceOf(LoggerContext.class, factory, String.format( "LoggerFactory is not a Logback LoggerContext but Logback is on " + "the classpath. Either remove Logback or the competing " + "implementation (%s loaded from %s). If you are using " + "WebLogic you will need to add 'org.slf4j' to " + "prefer-application-packages in WEB-INF/weblogic.xml", factory.getClass(), getLocation(factory))); return (LoggerContext) factory; } private Object getLocation(ILoggerFactory factory) { try { ProtectionDomain protectionDomain = factory.getClass().getProtectionDomain(); CodeSource codeSource = protectionDomain.getCodeSource(); if (codeSource != null) { return codeSource.getLocation(); } } catch (SecurityException ex) { // Unable to determine location } return "unknown location"; } private void stopAndReset(LoggerContext loggerContext) { loggerContext.stop(); loggerContext.reset(); if (isBridgeHandlerInstalled()) { addLevelChangePropagator(loggerContext); } } private boolean isBridgeHandlerInstalled() { if (!isBridgeHandlerAvailable()) { return false; } java.util.logging.Logger rootLogger = LogManager.getLogManager().getLogger(""); Handler[] handlers = rootLogger.getHandlers(); return handlers.length == 1 && handlers[0] instanceof SLF4JBridgeHandler; } private void addLevelChangePropagator(LoggerContext loggerContext) { LevelChangePropagator levelChangePropagator = new LevelChangePropagator(); levelChangePropagator.setResetJUL(true); levelChangePropagator.setContext(loggerContext); loggerContext.addListener(levelChangePropagator); } }

指定日志系统实现类

@SpringBootApplication public class MyApplication { public static void main(String[] args) { System.setProperty(org.springframework.boot.logging.LoggingSystem.SYSTEM_PROPERTY, myapp.LoggingSystem.class.getName()); SpringApplication.run(ManagementApiApplication.class, args); } }