logging:
 path: /var/log
 file: test.log

path: /var/logs   # 在/var/logs目录下生成spring.log文件
 file: /var/logs/test.log # 在/var/logs目录下生成test.log文件

<dependency>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-starter-logging</artifactId>
 </dependency>
 <dependency>
  <groupId>net.logstash.logback</groupId>
  <artifactId>logstash-logback-encoder</artifactId>
  <version>4.11</version>
 </dependency>
 <dependency>
  <groupId>net.logstash.log4j</groupId>
  <artifactId>jsonevent-layout</artifactId>
  <version>1.7</version>
 </dependency> 

<?xml version="1.0" encoding="UTF-8"?>
<configuration scan="true" scanPeriod="60 seconds" debug="false">
 <include resource="org/springframework/boot/logging/logback/base.xml" />
 <contextName>logback</contextName>
 <!-- 记录文件到特定目录 -->
 <!-- <property name="log.path" value="E:\\test\\logback.log" /> -->
 <property name="log.path" value="/Users/chang/Desktop/CHLogs/logback.log" />
<appender name="stash" class="net.logstash.logback.appender.LogstashTcpSocketAppender">
    <destination>192.168.220.83:9601</destination>
   <encoder class="net.logstash.logback.encoder.LogstashEncoder" />
</appender>
<!--输出到控制台-->
<appender name="console" class="ch.qos.logback.core.ConsoleAppender">
 <!-- <filter class="ch.qos.logback.classic.filter.ThresholdFilter">
  <level>ERROR</level>
 </filter>-->
 <encoder>
  <pattern>%d{HH:mm:ss.SSS} %contextName [%thread] %-5level %logger{36} - %msg%n</pattern>
 </encoder>
</appender>
<!--输出到文件-->
<appender name="file" class="ch.qos.logback.core.rolling.RollingFileAppender">
 <file>${log.path}</file>
 <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
  <fileNamePattern>logback.%d{yyyy-MM-dd}.log</fileNamePattern>
 </rollingPolicy>
 <encoder>
  <pattern>%d{HH:mm:ss.SSS} %contextName [%thread] %-5level %logger{36} - %msg%n</pattern>
 </encoder>
</appender>
<root level="info">
 <appender-ref ref="stash"/>
 <appender-ref ref="console" />
 <appender-ref ref="file" />
</root>
<!-- logback为 java 中的包 
<logger name="com.dudu.controller"/>
logback.LogbackDemo：类的全路径
<logger name="com.dudu.controller.LearnController" level="WARN" additivity="false">
 <appender-ref ref="console"/>
</logger> -->
</configuration>

 <properties>
  <ch.qos.logback.version>1.2.3</ch.qos.logback.version>
 </properties>
 <dependencyManagement>
  <dependencies>
   <dependency>
    <groupId>ch.qos.logback</groupId>
    <artifactId>logback-core</artifactId>
    <version>${ch.qos.logback.version}</version>
   </dependency>
   <dependency>
    <groupId>ch.qos.logback</groupId>
    <artifactId>logback-classic</artifactId>
    <version>${ch.qos.logback.version}</version>
   </dependency>
   <dependency>
    <groupId>ch.qos.logback</groupId>
    <artifactId>logback-access</artifactId>
    <version>${ch.qos.logback.version}</version>
   </dependency>
  </dependencies>
 </dependencyManagement>