springboot log management

When springboot introduces spring-boot-starter-web, the logback log package is imported by default, and no additional introduction is required in the project.

Log levels from low to high are divided into:

TRACE < DEBUG < INFO < WARN < ERROR < FATAL。

Add logback-spring.xml in the resource directory

content:

<?xml version="1.0" encoding="UTF-8"?>
<configuration scan="true" scanPeriod="60 seconds" debug="false">
    <contextName>logback</contextName>
<!--输出到控制台-->
<appender name="console" class="ch.qos.logback.core.ConsoleAppender">
        <encoder>
            <pattern>%d %contextName [%thread] %-5level %logger - %msg%n</pattern>
        </encoder>
    </appender>
30Output to file Generate a log file every day, save<!--        
    天的日志文件。-->
<appender name="file" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <fileNamePattern>${LOG_PATH}/demo-%d.log</fileNamePattern>
            <maxHistory>30</maxHistory>
        </rollingPolicy>
        <encoder>
            <pattern>%d %contextName [%thread] %-5level %logger - %msg%n</pattern>
        </encoder>
    </appender>
    <root level="info">
    
        <appender-ref ref ="console" />
         <appender-ref ref ="file" />
     </root>
 <!-- Test environment + development environment . Use commas to separate multiple ones . -->
 <springProfile name = "test,dev" >
         <logger name ="com.example.springboot" level ="info" />
     </springProfile>
 <!-- Define the log output level of the production environment -->
 <springProfile name ="pro" >
         < logger name ="com.example.springboot" level="info"/>

                    </springProfile>
    <!--输出执行的sql语句-->
    <logger name="com.example.springboot.dao" level="debug"/>
</configuration>

说明：该文件定义了一个控制台输出一个文件输出（最长保存日志为30天）。指定了不同环境下日志输出级别。最后一句输出执行的输出SQL信息。

${LOG_PATH}  该变量会获取  logging.path的值

二、定义日志文件输出位置

application.yaml 文件中添加如下内容：

logging:
  path: e:\\logs\\springboot\\logs

三、定义测试Controller

LogController

package com.example.springboot.controller;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
@RequestMapping("/log")
public class LogController {

    private final Logger log = LoggerFactory.getLogger(this.getClass());

    @RequestMapping("/test")
    public void log() {
        log.debug("debug");
        log.info("info");
        log.warn("warn");
        log.error("error");
    }
}

可以修改日志配置文件日志级别，进行测试。就不再具体展示.

详细内容参考：Spring Boot 日志配置

springboot log management

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