SpringBoot Logback日志配置与使用

Logback是log4j框架的作者开发的新一代日志框架，它效率更高、能够适应诸多的运行环境，同时天然支持SLF4J。

默认情况下，Spring Boot会用Logback来记录日志，并用INFO级别输出到控制台。

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pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0modelVersion>

    <groupId>com.mistragroupId>
    <artifactId>axelaartifactId>
    <version>0.0.1-SNAPSHOTversion>
    <packaging>jarpackaging>

    <name>axelaname>
    <description>Demo project for Spring Bootdescription>

    <parent>
        <groupId>org.springframework.bootgroupId>
        <artifactId>spring-boot-starter-parentartifactId>
        <version>2.0.2.RELEASEversion>
        <relativePath/> 
    parent>

    <properties>
        <project.build.sourceEncoding>UTF-8project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8project.reporting.outputEncoding>
        <java.version>1.8java.version>
    properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.bootgroupId>
            <artifactId>spring-boot-starter-webartifactId>
        dependency>
        
        <dependency>
            <groupId>org.springframework.bootgroupId>
            <artifactId>spring-boot-starter-thymeleafartifactId>
        dependency>
        
        <dependency>
            <groupId>com.baomidougroupId>
            <artifactId>mybatis-plusartifactId>
            <version>2.3version>
        dependency>
        
        <dependency>
            <groupId>mysqlgroupId>
            <artifactId>mysql-connector-javaartifactId>
            <scope>runtimescope>
        dependency>
        
        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-jdbcartifactId>
            <version>5.0.6.RELEASEversion>
        dependency>

        
        <dependency>
            <groupId>com.alibabagroupId>
            <artifactId>druid-spring-boot-starterartifactId>
            <version>1.1.9version>
        dependency>
        
        <dependency>
            <groupId>org.projectlombokgroupId>
            <artifactId>lombokartifactId>
            <optional>trueoptional>
        dependency>
        <dependency>
            <groupId>org.apache.commonsgroupId>
            <artifactId>commons-lang3artifactId>
            <version>3.7version>
        dependency>
        
        <dependency>
            <groupId>io.springfoxgroupId>
            <artifactId>springfox-swagger2artifactId>
            <version>2.8.0version>
        dependency>
        <dependency>
            <groupId>io.springfoxgroupId>
            <artifactId>springfox-swagger-uiartifactId>
            <version>2.8.0version>
        dependency>
        
        <dependency>
            <groupId>org.springframework.bootgroupId>
            <artifactId>spring-boot-starter-testartifactId>
            <scope>testscope>
        dependency>
    dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.bootgroupId>
                <artifactId>spring-boot-maven-pluginartifactId>
            plugin>
        plugins>
    build>
project>

不用再添加下面这个log依赖：

<dependency>
    <groupId>org.springframework.bootgroupId>
    <artifactId>spring-boot-starter-loggingartifactId>
dependency>

因为spring-boot-starter-web已经集成了log相关依赖

在classpath下新建logback配置文件logback-spring.xml

在application.properties文件中添加配置

#引入日志配置文件
logging.config=classpath:logback-spring.xml

logback-spring.xml

<configuration debug="false">
    
    <property name="LOG_HOME" value="/log" />
    
    
    
    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
        <encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
            
            <pattern>%date{yyyy-MM-dd HH:mm:ss} | %highlight(%-5level) | %boldYellow(%thread) | %cyan(%logger) | %msg%npattern>
            <charset>UTF-8charset>
        encoder>
    appender>
    
    
    
    <appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
        
        
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            
            
            <fileNamePattern>${LOG_HOME}/sys.%d.%i.logfileNamePattern>
            
            <maxHistory>30maxHistory>
            <timeBasedFileNamingAndTriggeringPolicy  class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
                
                <maxFileSize>20MBmaxFileSize>
            timeBasedFileNamingAndTriggeringPolicy>
        rollingPolicy>
        <encoder>
            
            <pattern>%date{yyyy-MM-dd HH:mm:ss} | %highlight(%-5level) | %boldYellow(%thread) | %cyan(%logger) | %msg%npattern>
            
            <charset>UTF-8charset> 
        encoder>
    appender>

    
    

    
    <logger name="com.xxx.xxx.mapper" level="debug" />
    <logger name="jdbc.sqltiming" level="debug"/>
    <logger name="com.ibatis" level="debug" />
    <logger name="com.ibatis.common.jdbc.SimpleDataSource" level="debug" />
    <logger name="com.ibatis.common.jdbc.ScriptRunner" level="debug" />
    <logger name="com.ibatis.sqlmap.engine.impl.SqlMapClientDelegate" level="debug" />
    <logger name="java.sql.Connection" level="debug" />
    <logger name="java.sql.Statement" level="debug" />
    <logger name="java.sql.PreparedStatement" level="debug" />
    <logger name="java.sql.ResultSet" level="debug" />

    
    <root level="INFO">
        <appender-ref ref="STDOUT" />
        <appender-ref ref="FILE" />
    root>
    
    
    
    
    
configuration>

测试Controller–LogbackController.java

package com.mistra.axela.logback;

import io.swagger.annotations.ApiOperation;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;


/**
 * Author: WangRui
 * Date: 2018/5/19
 * Describe:
 */
@RestController
@RequestMapping("/logback")
public class LogbackController {
    private static Logger LOGGER = LoggerFactory.getLogger(LogbackController.class);

    @ApiOperation("logback日志测试")
    @RequestMapping("/get")
    public void get(){
        LOGGER.info("logback日志---info测试");
        LOGGER.debug("logback日志---debug测试");
    }
}

启动项目访问http://localhost:8080/logback/get，控制台打印：

我这里设置的是打印INFO级别及以上的日志，所以DEBUG日志没有打印。

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