本文是这篇教程的学习笔记:
Logging with Spring Boot - Logback, SLF4j and LOG4j2
我有一个最简单的SpringBoot应用,其pom.xml里的依赖定义如下:
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上图看到很多Starter,比如Spring-boot-starter-data-redis, Spring-boot-starter-web等等。这些Starter都包含了一个spring-boot-starter, 而这个starter又包含了一个实现logging的starter,叫做spring-boot-starter-logging.
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也就是说,如果我们使用SpringBoot,无需再导入额外的配置,就能使用日志功能了。
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SpringBoot slf4j的默认实现是logback,默认输出是到控制台console:
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As you can see the default logging framework is Logback with SLF4j as implementation.
By default, all logging goes to console.
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在Application.properties文件里使用logging.level.root配置项目全局的日志级别:
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当然要针对个别包进行日志级别的分别配置也是可以的:
logging.level.some.package.path=DEBUG
logging.level.some.other.package.path=ERROR
Custom configuration using logback.xml
Spring Boot will pick up all custom configuration using logback.xml as long as it is in the application class path.
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将日志写入本地日志文件的做法: