目录
- 前言
- 使用
- 1. 依赖
- 2. 配置 logback-spring.xml
- 3. 全局日志AOP实现
前言
SpringBoot 在所有内部日志中使用Commons Logging，但是默认配置也提供了对常用日志的支持，如：Java Util Logging，Log4J, Log4J2和Logback。每种Logger都可以通过配置使用控制台或者文件输出日志内容。
默认日志Logback
SLF4J——简单日志门面，对应的英文为Simple Logging Facade，是存取日志的标准接口，包括slf4j、log4j、jdk logging api和apache common-log等具体实现。
其实SLF4J类似于Commons Logging，也是一个日志接口，而Logback类似于Log4j，是一个日志的实现。
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v2.4.5)
2021-05-11 14:37:21.934 INFO 10716 --- [ restartedMain] com.pro.MyBlogSiteApplication : Starting MyBlogSiteApplication using Java 11.0.9 on DESKTOP-04S0A5K with PID 10716 (C:\Users\ibbd\Desktop\sundry\my-blog-site\target\classes started by ibbd in C:\Users\ibbd\Desktop\sundry\my-blog-site)
2021-05-11 14:37:21.937 INFO 10716 --- [ restartedMain] com.pro.MyBlogSiteApplication : The following profiles are active: dev
2021-05-11 14:37:22.021 INFO 10716 --- [ restartedMain] .e.DevToolsPropertyDefaultsPostProcessor : Devtools property defaults active! Set 'spring.devtools.add-properties' to 'false' to disable
2021-05-11 14:37:22.021 INFO 10716 --- [ restartedMain] .e.DevToolsPropertyDefaultsPostProcessor : For additional web related logging consider setting the 'logging.level.web' property to 'DEBUG'
2021-05-11 14:37:23.584 INFO 10716 --- [ restartedMain] c.a.d.s.b.a.DruidDataSourceAutoConfigure : Init DruidDataSource
2021-05-11 14:37:24.675 INFO 10716 --- [ restartedMain] com.alibaba.druid.pool.DruidDataSource : {dataSource-1} inited
2021-05-11 14:37:25.656 INFO 10716 --- [ restartedMain] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8081 (http)
2021-05-11 14:37:25.675 INFO 10716 --- [ restartedMain] o.apache.catalina.core.StandardService : Starting service [Tomcat]
从默认的日志信息可以看出
自定义日志配置
根据不同的日志系统，你可以按如下规则组织配置文件名，就能被正确加载：
Logback：logback-spring.xml, logback-spring.groovy, logback.xml, logback.groovy
Log4j：log4j-spring.properties, log4j-spring.xml, log4j.properties, log4j.xml
Log4j2：log4j2-spring.xml, log4j2.xml
JDK (Java Util Logging)：logging.properties
Spring Boot官方推荐优先使用带有-spring的文件名作为你的日志配置（如使用logback-spring.xml，而不是logback.xml），命名为logback-spring.xml的日志配置文件，spring boot可以为它添加一些spring boot特有的配置项（下面会提到）。
默认的命名规则，并且放在 src/main/resources 下面即可
如果你即想完全掌控日志配置，但又不想用logback.xml作为Logback配置的名字，application.yml可以通过logging.config属性指定自定义的名字：
logging.config=classpath:logging-config.xml
日志级别
日志级别从低到高分为
TRACE < DEBUG < INFO < WARN < ERROR < FATAL
如果设置为 WARN ，则低于 WARN 的信息都不会输出
一般设置为 DEBUG 就够用了
使用
1. 依赖
spring-boot-starter 这个包就自带了 logging 的依赖包, AOP这个包后面会用到
使用的 SpringBoot 版本：v2.4.5
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-loggingartifactId>
dependency>
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-aopartifactId>
dependency>
2. 配置 logback-spring.xml
在 src/main/resources 目录下新建 logback-spring.xml 配置文件
<configuration scan="true" scanPeriod="30 seconds">
<conversionRule conversionWord="clr" converterClass="org.springframework.boot.logging.logback.ColorConverter" />
<conversionRule conversionWord="wex" converterClass="org.springframework.boot.logging.logback.WhitespaceThrowableProxyConverter" />
<conversionRule conversionWord="wEx" converterClass="org.springframework.boot.logging.logback.ExtendedWhitespaceThrowableProxyConverter" />
<property name="LOG_PATH" value="./logs"/>
<property name="CONSOLE_LOG_PATTERN" value="${CONSOLE_LOG_PATTERN:-%clr(%d{${LOG_DATEFORMAT_PATTERN:-yyyy-MM-dd HH:mm:ss.SSS}}){faint} %clr(${LOG_LEVEL_PATTERN:-%5p}) %clr(${PID:- }){magenta} %clr(---){faint} %clr([%15.15t]){faint} %clr(%-40.40logger{39}){cyan} %clr(:){faint} %m%n${LOG_EXCEPTION_CONVERSION_WORD:-%wEx}}" />
<property name="FILE_LOG_PATTERN" value="${FILE_LOG_PATTERN:-%d{${LOG_DATEFORMAT_PATTERN:-yyyy-MM-dd HH:mm:ss.SSS}} ${LOG_LEVEL_PATTERN:-%5p} ${PID:- } --- [%15t] %-40.40logger{39} : %m%n${LOG_EXCEPTION_CONVERSION_WORD:-%wEx}}" />
<appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
<encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
<pattern>${CONSOLE_LOG_PATTERN}pattern>
<charset>UTF-8charset>
encoder>
<filter class="ch.qos.logback.classic.filter.LevelFilter">
<onMatch>ACCEPTonMatch>
<onMismatch>DENYonMismatch>
filter>
appender>
<appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
<rollingPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy">
<FileNamePattern>${LOG_PATH}/my-blog-site.%d{yyyy-MM-dd}.%i.logFileNamePattern>
<maxFileSize>100MBmaxFileSize>
<maxHistory>30maxHistory>
rollingPolicy>
<encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
<pattern>${FILE_LOG_PATTERN}pattern>
<charset>UTF-8charset>
encoder>
appender>
<springProfile name="dev,prod">
<logger name="org.springframework" level="INFO" additivity="false">
<appender-ref ref="CONSOLE"/>
<appender-ref ref="FILE"/>
logger>
<logger name="com.netflix" level="INFO" additivity="false">
<appender-ref ref="CONSOLE"/>
<appender-ref ref="FILE"/>
logger>
<logger name="com.pro.test" level="DEBUG" additivity="false">
<appender-ref ref="CONSOLE"/>
<appender-ref ref="FILE"/>
logger>
<logger name="java.sql" level="DEBUG" additivity="false">
<appender-ref ref="CONSOLE"/>
<appender-ref ref="FILE"/>
logger>
<logger name="com.pro" level="DEBUG,INFO" additivity="false">
<appender-ref ref="CONSOLE"/>
<appender-ref ref="FILE"/>
logger>
springProfile>
<root level="INFO">
<appender-ref ref="CONSOLE" />
<appender-ref ref="FILE" />
root>
configuration>
Pointcut 切入点说明
1. execution(public * *(..))
2. execution(* set*(..))
3. execution(* com.pro.service.UserService.*(..))
4. execution(* com.pro.service.*.*(..))
5. execution(* com.pro.service..*.*(..))
()匹配没有参数； (..)代表任意多个参数； (*)代表一个参数，但可以是任意型； (*,String)代表第一个参数为任何值,第二个为String类型。
记录日志
package com.pro.aspect;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.AfterReturning;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;
import javax.servlet.http.HttpServletRequest;
import java.util.Arrays;
@Aspect
@Component
public class WebLogAspect {
private static final Logger LOGGER = LoggerFactory.getLogger(WebLogAspect.class);
ThreadLocal<Long> startTime = new ThreadLocal<>();
@Pointcut("execution(* com.pro.controller..*.*(..))")
public void pc() {}
@Before("pc()")
public void doBefore(JoinPoint joinPoint) {
startTime.set(System.currentTimeMillis());
ServletRequestAttributes requestAttributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
HttpServletRequest request = requestAttributes.getRequest();
LOGGER.info("URL: " + request.getRequestURL().toString());
LOGGER.info("HTTP_METHOD: " + request.getMethod());
LOGGER.info("IP: " + request.getRemoteAddr());
LOGGER.info("CLASS_METHOD: " + joinPoint.getSignature().getDeclaringTypeName() + "." + joinPoint.getSignature().getName());
LOGGER.info("Args: " + Arrays.toString(joinPoint.getArgs()));
}
@AfterReturning(returning = "result", pointcut = "pc()")
public void doAfterReturning(Object result) {
LOGGER.info("RESPONSE: " + result);
LOGGER.info("SPEND TIME: " + (System.currentTimeMillis() - startTime.get()));
startTime.remove();
}
@AfterThrowing(value = "pc()", throwing = "e")
public void doAfterThrowing(JoinPoint joinPoint, Exception e) {
String name = joinPoint.getSignature().getDeclaringTypeName() + "." + joinPoint.getSignature().getName();
LOGGER.info("Exception_Class_Method: {}, Exception_Message: {}", name, e.getMessage());
}
}
提供CDN加速