在springboot中使用logback多环境配置的时候，遇到了一些坑，关于怎么使用，直接上代码，坑待会说。
配置文件如上。
要求实现在application.yml中实现日志输出位置和等级的控制，其中application.yml应该如下写：
接着是logback-spring.xml中的写法：
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<springProperty scope="context" name="LOG_LEVEL" source="log.level"/>
<springProperty scope="context" name="LOG_HOME" source="log.path"/>
<!--定义日志文件的存储地址 勿在 LogBack 的配置中使用相对路径-->
<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" />
<!-- 日志格式 -->
<property name="CONSOLE_LOG_PATTERN" value="${CONSOLE_LOG_PATTERN:-%clr(%d{yyyy-MM-dd HH:mm:ss.SSS}){faint} %clr(${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}}" />
<!-- Console 输出设置 -->
<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
<encoder>
<pattern>${CONSOLE_LOG_PATTERN}</pattern>
<charset>utf8</charset>
</encoder>
</appender>
<appender name="DAYINFO" class="ch.qos.logback.core.rolling.RollingFileAppender">
<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<!--日志文件输出的文件名-->
<FileNamePattern>${LOG_HOME}/myInfoLog%d{yyyy-MM-dd}.log</FileNamePattern>
</rollingPolicy>
<filter class="ch.qos.logback.classic.filter.LevelFilter">
<level>info</level>
<onMatch>ACCEPT</onMatch>
<onMismatch>DENY</onMismatch>
</filter>
<encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
<!--格式化输出：%d表示日期，%thread表示线程名，%-5level：级别从左显示5个字符宽度%msg：日志消息，%n是换行符-->
<pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} - %msg%n</pattern>
</encoder>
</appender>
<!--error appender-->
<appender name="DAYERROR" class="ch.qos.logback.core.rolling.RollingFileAppender">
<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<!--日志文件输出的文件名-->
<FileNamePattern>${LOG_HOME}/myErrorLog%d{yyyy-MM-dd}.log</FileNamePattern>
</rollingPolicy>
<!--这里设置日志级别为error-->
<filter class="ch.qos.logback.classic.filter.LevelFilter">
<level>error</level>
<onMatch>ACCEPT</onMatch>
<onMismatch>DENY</onMismatch>
</filter>
<encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
<pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} - %msg%n</pattern>
</encoder>
</appender>
<!-- 日志输出级别 -->
<root level="${LOG_LEVEL}">
<appender-ref ref="STDOUT" />
<appender-ref ref="DAYINFO" />
<appender-ref ref="DAYERROR" />
</root>
</configuration>
我遇到的坑很简单，就是配置文件中写错了，写成了如下：
然后报错如下：
org.springframework.boot.context.properties.bind.BindException: Failed to bind properties under 'logging.level' to java.util.Map<java.lang.String, java.lang.String>
at org.springframework.boot.context.properties.bind.Binder.handleBindError(Binder.java:249)
at org.springframework.boot.context.properties.bind.Binder.bind(Binder.java:225)
at org.springframework.boot.context.properties.bind.Binder.bind(Binder.java:208)
at org.springframework.boot.context.properties.bind.Binder.bind(Binder.java:177)
at org.springframework.boot.context.logging.LoggingApplicationListener.setLogLevels(LoggingApplicationListener.java:338)
at org.springframework.boot.context.logging.LoggingApplicationListener.initializeFinalLoggingLevels(LoggingApplicationListener.java:319)
at org.springframework.boot.context.logging.LoggingApplicationListener.initialize(LoggingApplicationListener.java:267)
at org.springframework.boot.context.logging.LoggingApplicationListener.onApplicationEnvironmentPreparedEvent(LoggingApplicationListener.java:229)
at org.springframework.boot.context.logging.LoggingApplicationListener.onApplicationEvent(LoggingApplicationListener.java:202)
at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:172)
at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:165)
at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139)
at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:127)
at org.springframework.boot.context.event.EventPublishingRunListener.environmentPrepared(EventPublishingRunListener.java:75)
at org.springframework.boot.SpringApplicationRunListeners.environmentPrepared(SpringApplicationRunListeners.java:54)
at org.springframework.boot.SpringApplication.prepareEnvironment(SpringApplication.java:347)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:306)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1260)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1248)
at com.matai.Application.main(Application.java:15)
Caused by: org.springframework.core.convert.ConverterNotFoundException: No converter found capable of converting from type [java.lang.String] to type [java.util.Map<java.lang.String, java.lang.String>]
at org.springframework.core.convert.support.GenericConversionService.handleConverterNotFound(GenericConversionService.java:321)
at org.springframework.core.convert.support.GenericConversionService.convert(GenericConversionService.java:194)
at org.springframework.boot.context.properties.bind.BindConverter$CompositeConversionService.convert(BindConverter.java:177)
at org.springframework.boot.context.properties.bind.BindConverter.convert(BindConverter.java:98)
at org.springframework.boot.context.properties.bind.BindConverter.convert(BindConverter.java:90)
at org.springframework.boot.context.properties.bind.MapBinder.bindAggregate(MapBinder.java:65)
at org.springframework.boot.context.properties.bind.AggregateBinder.bind(AggregateBinder.java:58)
at org.springframework.boot.context.properties.bind.Binder.lambda$bindAggregate$2(Binder.java:304)
at org.springframework.boot.context.properties.bind.Binder$$Lambda$45/1616974404.get(Unknown Source)
at org.springframework.boot.context.properties.bind.Binder$Context.withIncreasedDepth(Binder.java:448)
at org.springframework.boot.context.properties.bind.Binder$Context.access$100(Binder.java:388)
at org.springframework.boot.context.properties.bind.Binder.bindAggregate(Binder.java:303)
at org.springframework.boot.context.properties.bind.Binder.bindObject(Binder.java:261)
at org.springframework.boot.context.properties.bind.Binder.bind(Binder.java:220)
... 18 common frames omitted最后才知道为啥，应该就是logging是关键字，不能这样使用，一不小心就被这个bug浪费了好久好久的时间。
