Logback动态配置.01_Appender

import java.io.IOException;
import java.nio.charset.Charset;

import org.slf4j.LoggerFactory;
import org.testng.annotations.Test;

import ch.qos.logback.classic.Level;
import ch.qos.logback.classic.Logger;
import ch.qos.logback.classic.LoggerContext;
import ch.qos.logback.classic.encoder.PatternLayoutEncoder;
import ch.qos.logback.core.FileAppender;

/**
 * Log修改管理
 *
 * @author bash
 * @version V1.0
 * @since 2016-03-21 10:53
 */
public class LoggerDynamicConfig {

    /**
     * 日志记录Logger
     */
    private static final Logger LOG = (Logger) LoggerFactory.getLogger(LoggerDynamicConfig.class);

    @Test
    public void addAppender() throws IOException {
        LoggerContext lc = (LoggerContext) LoggerFactory.getILoggerFactory();

        /*这里配置encodeer。*/
        PatternLayoutEncoder encoder = new PatternLayoutEncoder();
        encoder.setCharset(Charset.forName("UTF-8"));
        encoder.setPattern("%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n");
        encoder.setImmediateFlush(true);
        encoder.setContext(lc);

        /*这里启配置appender*/
        FileAppender appender = new FileAppender();
        appender.setEncoder(encoder);
        appender.setFile("/home/bash/workspace/temp/test.log");
        appender.setName("TestFile");
        appender.setAppend(false);
        appender.setContext(lc);

        /*这里启动encoder和appender。*/
        encoder.start();
        appender.start();

        LOG.addAppender(appender);
        LOG.info("这里时一条所有appender都可以输出的数据。");
        
        /*修改Logger级别*/
        LOG.setLevel(Level.ERROR);
        LOG.info("这里的数据所有appender都不会输出。");
        LOG.error("这里时一条所有appender都可以输出的数据。");
        /*删除appender*/
        LOG.detachAppender("TestFile");
        LOG.error("这条数据不会在FileAppender中输出。");
    }
}

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
        <encoder>
            <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n
            </pattern>
        </encoder>
    </appender>

    <root level="debug">
        <appender-ref ref="STDOUT"/>
    </root>
</configuration>