spring boot日志logback输出
logback是spring boot的官方推荐日志。
1.在代码中使用logback日志:
import org.slf4j.Logger; import org.slf4j.LoggerFactory; @RestController public class HelloController { private Logger logger = LoggerFactory.getLogger(getClass()); /** * hello world 第一个程序 * @return */ @RequestMapping("/hello") public String hello(){ logger.info("输出的信息是:{}", "Hello World") // {}是通配符,和log4j2里面的%s是一样的意思 return "Hello World!"; } }
2.logback.xml:
<configuration> <!--控制台输出--> <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender"> <!--<layout>实现类的类型是 PatternLayout 时,class属性可以不用填写--> <encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder"> <!--格式化输出:%d表示日期,%thread表示线程名,%-5level:级别从左显示5个字符宽度%msg:日志消息,%n是换行符--> <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} - %msg%n</pattern> </encoder > </appender> <!--文件输出--> <appender name="ROLLING" class="ch.qos.logback.core.rolling.RollingFileAppender"> <file>/data/logs/java/platform_springboot_all.log</file> <rollingPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy"> <!-- daily rollover --> <fileNamePattern>/data/logs/java/platform_springboot_all/%d{yyyyMMdd}.%i.log.gz</fileNamePattern> <maxFileSize>1GB</maxFileSize> <maxHistory>7</maxHistory> <totalSizeCap>15GB</totalSizeCap> </rollingPolicy> <encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder"> <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS, GMT+8} %-4relative [%thread] %-5level %logger{35} - %msg%n</pattern> </encoder> </appender> <root level="INFO"> <appender-ref ref="ROLLING" /> <appender-ref ref="STDOUT" /> </root> </configuration>
资料:
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