Java logback日志的简单使用

<dependency>
 <groupId>org.slf4j</groupId>
 <artifactId>slf4j-api</artifactId>
 <version>1.7.21</version>
</dependency>
<dependency>
 <groupId>ch.qos.logback</groupId>
 <artifactId>logback-core</artifactId>
 <version>1.1.7</version>
</dependency>
<dependency>
 <groupId>ch.qos.logback</groupId>
 <artifactId>logback-classic</artifactId>
 <version>1.1.7</version>
</dependency>

<?xml version="1.0" encoding="UTF-8" ?>

<configuration scan="true" scanPeriod="3 seconds">

 <property name="z_app" value="${z_app:-app}"/>

 <property name="SQL_LEVEL" value="DEBUG"/>
 <property name="SERVICE_LEVEL" value="DEBUG"/>
 <property name="RPC_LEVEL" value="DEBUG"/>
 <property name="BOOT_LEVEL" value="DEBUG"/>
 <property name="BUF_LEVEL" value="DEBUG"/>

 <!-- 09:14:20.256 [main] INFO com.h.db.business.main.Main - asfdasdf -->
 <property name="PATTERN" value="%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n"/>

 <property name="SQL_LOG_FILE" value="${LOG_HOME}/logs/${z_app}/${z_app}Sql.log"/>
 <property name="SERVICE_LOG_FILE" value="${LOG_HOME}/logs/${z_app}/${z_app}Service.log"/>
 <property name="RPC_LOG_FILE" value="${LOG_HOME}/logs/${z_app}/${z_app}RPC.log"/>
 <property name="BOOT_LOG_FILE" value="${LOG_HOME}/logs/${z_app}/${z_app}Boot.log"/>
 <property name="BUF_LOG_FILE" value="${LOG_HOME}/logs/${z_app}/${z_app}Buf.log"/>
 <property name="TRACE_LOG_FILE" value="${LOG_HOME}/logs/${z_app}/${z_app}Trace.log"/>

 <appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
  <encoder>
   <charset>utf-8</charset>
   <pattern>${PATTERN}</pattern>
  </encoder>
 </appender>

 <property name="ROOT_LEVEL" value="DEBUG"/>

 <property name="APP_LOG_FILE" value="${LOG_HOME}/logs/${z_app}/${z_app}.log"/>

 <appender name="APP_LOG" class="ch.qos.logback.core.rolling.RollingFileAppender">
  <encoder>
   <charset>utf-8</charset>
   <pattern>${PATTERN}</pattern>
  </encoder>
  <prudent>false</prudent>
  <append>true</append>
  <file>${APP_LOG_FILE}</file>
  <rollingPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy">
   <fileNamePattern>${APP_LOG_FILE}.%d{yyyy-MM-dd}-%i.gz</fileNamePattern>
   <maxFileSize>10MB</maxFileSize>
   <maxHistory>15</maxHistory>
   <totalSizeCap>200MB</totalSizeCap>
  </rollingPolicy>
 </appender>

 <!-- 打印具体sql -->
 <logger name="SqlLog" level="DEBUG" >
  <appender-ref ref="APP_LOG" />
  <appender-ref ref="CONSOLE" />
 </logger>
 <!-- 打印事务轨迹 -->
 <logger name="druid.sql.Connection" level="DEBUG" />
 <logger name="org.springframework.jdbc.datasource.CoreDataSourceUtils" level="DEBUG" />
 <logger name="org.springframework.jdbc.datasource.DataSourceUtils" level="DEBUG" />
 <logger name="org.apache.zookeeper.ClientCnxn" level="info" />
 <logger name="org.mongodb.driver.connection" level="info" />
 <logger name="org.mongodb.driver.cluster" level="info" />
 <logger name="org.apache.zookeeper.Environment" level="ERROR"/>
 <logger name="org.apache.curator.framework.recipes.cache.TreeCache" level="debug"/>
 <logger name="tk.mybatis.mapper.mapperhelper.MapperTemplate" level="DEBUG"/>

 <root level="${ROOT_LEVEL}">
  <appender-ref ref="APP_LOG" />
  <appender-ref ref="CONSOLE" />
 </root>
</configuration>

// 或者LoggerFactory.getLogger(${logger_name}),这里logger_name为logback.xml中logger标签定义的名称
private static final Logger logger2 = LoggerFactory.getLogger(XX.class);

org.slf4j.impl.Log4jLoggerFactory cannot be cast to ch.qos.logback.classic.LoggerContext

SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/E:/**/WEB-INF/lib/activemq-all-5.10.2.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/E:/**/WEB-INF/lib/slf4j-simple-1.6.3.jar!/org/slf4j/impl/StaticLoggerBinder.class]