logback使用

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class MyClass {
    private static Logger logger = LoggerFactory.getLogger(MyClass.class);
    public static void main(String[] args) throws Exception{
        someMethod();
    }
    public static void someMethod() {
        logger.info("Hello world  824");
        logger.debug("debug 824");
        System.err.println("12345678");
    }
}

pom.xml

 <!-- logback日志配置开始 -->
             <dependency>
                  <groupId>ch.qos.logback</groupId>
                  <artifactId>logback-classic</artifactId>
                  <version>1.1.6</version>
                  <exclusions>
                      <exclusion>
                          <groupId>org.slf4j</groupId>
                          <artifactId>slf4j-log4j12</artifactId>
                      </exclusion>
                      <exclusion>
                          <groupId>log4j</groupId>
                          <artifactId>log4j</artifactId>
                      </exclusion>
                  </exclusions>
              </dependency>

               <dependency>
                  <groupId>ch.qos.logback</groupId>
                  <artifactId>logback-core</artifactId>
                  <version>1.1.6</version>
              </dependency>

              <dependency>
                  <groupId>org.slf4j</groupId>
                  <artifactId>slf4j-api</artifactId>
                  <version>1.7.14</version>
              </dependency>
              <!-- logback日志配置结束 -->

logback.xml

<?xml version="1.0" encoding="UTF-8"?>
<configuration debug="false">
    <!--定义日志文件的存储地址 勿在 LogBack 的配置中使用相对路径-->
    <property name="LOG_HOME" value="/Users/tom/testlog1" />
    <!-- 控制台输出 -->
    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
        <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>
    <!-- 按照每天生成日志文件 -->
    <appender name="FILE" 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}/TestWeb.log.%d{yyyy-MM-dd}.log</FileNamePattern>
            <!--日志文件保留天数-->
            <MaxHistory>30</MaxHistory>
        </rollingPolicy>
        <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>
        <!--日志文件最大的大小-->
        <triggeringPolicy class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy">
            <MaxFileSize>10MB</MaxFileSize>
        </triggeringPolicy>
    </appender>

    <!-- 日志输出级别 -->
    <root level="INFO">
        <appender-ref ref="STDOUT" />
        <appender-ref ref="FILE" />
    </root>
</configuration>

参考
http://dyccsxg.iteye.com/blog/1908065