SpringBoot集成之logback

偏执的太偏执、 2021-11-08 16:34 511阅读 0赞

![70][]

目前市面上的日志框架常见的有着几类，而我们常用的就是slf4j，它的实现以log4j，log4j2和logback为主，本文只要以logback作为slf4j的实现

打开pom文件的图表时，我们可以发现，SpringBoot内部已经有logback的相关依赖，此时我们不需要引入logback的相关依赖

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L20wXzM3OTg5OTEx_size_16_color_FFFFFF_t_70][]

在resources下新建一个人logback-spring.xml，作为日志的配置文件

<?xml version="1.0" encoding="UTF-8"?>
    <configuration debug="false">
      <contextName>Logback For demo Mobile</contextName>
      
      
      
      
      <springProfile name="dev">
        <property name="LOG_HOME" value="/logger/log1" />
      </springProfile>
      <springProfile name="prod">
        <property name="LOG_HOME" value="/logger/log2" />
      </springProfile>
      
      <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
        
        <encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
          <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{80} -%msg%n</pattern>
        </encoder>
        <target>System.out</target>
      </appender>
      
      <appender name="ROLLING_FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
          
          <FileNamePattern>D:/\${LOG_HOME}/\%d{yyyy-MM-dd}.log</FileNamePattern>
          
          <MaxHistory>180</MaxHistory>
        </rollingPolicy>
        <encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
          <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{25} -%msg%n</pattern>
        </encoder>
        
        <triggeringPolicy
          class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy">
          <MaxFileSize>20MB</MaxFileSize>
        </triggeringPolicy>
      </appender>
      
      
      <logger name="com" level="INFO">
        <appender-ref ref="ROLLING_FILE" />
      </logger>
      
      <root level="INFO">
        <appender-ref ref="STDOUT" />
        
        <appender-ref ref="ROLLING_FILE" />
      </root>
    </configuration>

新建两个配置文件，application-dev.properties和application-prod.properties，配置如下

![20190806144243633.png][]![20190806144314113.png][]![20190806144401845.png][]![20190806144340469.png][]

定义一个java类，用于日志测试

package com.example.demo.controller;
    
    import com.example.demo.entity.User;
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    import org.springframework.beans.factory.annotation.Value;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RestController;
    
    /**
     * Created by linjiaming
     */
    @RestController
    public class HelloController {
        Logger log = LoggerFactory.getLogger(HelloController.class);
        @Value("${boot.name}")
        private String name;
    
        @RequestMapping("hello")
        public User hello(){
            log.info("姓名"+name);
            User user = new User();
            user.setName(name);
            return user;
        }
    }

运行后，地址栏输入[http://localhost:8081/hello][http_localhost_8081_hello]，得到日志文件：

![20190806144818531.png][]

[70]: /images/20211108/51d18bb8eaf94438b418aaafa4c22fae.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L20wXzM3OTg5OTEx_size_16_color_FFFFFF_t_70]: /images/20211108/418c5da483934b8db5c7e34e135c8c7c.png
[20190806144243633.png]: https://img-blog.csdnimg.cn/20190806144243633.png
[20190806144314113.png]: https://img-blog.csdnimg.cn/20190806144314113.png
[20190806144401845.png]: https://img-blog.csdnimg.cn/20190806144401845.png
[20190806144340469.png]: /images/20211108/cc2ccf4c9df44a6b9aaf09d3a60d3fb2.png
[http_localhost_8081_hello]: http://localhost:8081/hello
[20190806144818531.png]: /images/20211108/25c831472ca447a4845ccc17cfabbf84.png