package com.example.demo.config;

import ch.qos.logback.classic.Level;
import ch.qos.logback.classic.Logger;
import ch.qos.logback.classic.LoggerContext;
import ch.qos.logback.core.ConsoleAppender;
import ch.qos.logback.core.rolling.RollingFileAppender;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;

import java.util.concurrent.ConcurrentHashMap;

@Component
public class LoggerBuilder {
private ConcurrentHashMap container = new ConcurrentHashMap<>();

public Logger getLogger(String name,Class<?> clazz) {  
    Logger logger = container.get(name);  
    if (logger != null) {  
        return logger;  
    }  
    synchronized (LoggerBuilder.class) {  
        logger = container.get(name);  
        if (logger != null) {  
            return logger;  
        }  
        logger = build(name,clazz);  
        container.put(name, logger);  
    }  
    return logger;  
}

private Logger build(String name,Class<?> clazz) {  
    RollingFileAppender errorAppender = new AppenderFactory().createRollingFileAppender(name, Level.ERROR);  
    RollingFileAppender infoAppender = new AppenderFactory().createRollingFileAppender(name, Level.INFO);  
    ConsoleAppender consoleAppender = new AppenderFactory().createConsoleAppender();  
    LoggerContext context = (LoggerContext) LoggerFactory.getILoggerFactory();  
    Logger logger = context.getLogger(clazz + " \[" + name + "\]");  
    //设置不向上级打印信息  
    logger.setAdditive(false);  
    logger.addAppender(errorAppender);  
    logger.addAppender(infoAppender);  
    logger.addAppender(consoleAppender);

    return logger;  
}

}

package com.example.demo.config;

import ch.qos.logback.classic.Level;
import ch.qos.logback.classic.LoggerContext;
import ch.qos.logback.classic.encoder.PatternLayoutEncoder;
import ch.qos.logback.classic.filter.LevelFilter;
import ch.qos.logback.core.ConsoleAppender;
import ch.qos.logback.core.FileAppender;
import ch.qos.logback.core.rolling.RollingFileAppender;
import ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy;
import ch.qos.logback.core.util.FileSize;
import ch.qos.logback.core.util.OptionHelper;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;

import static ch.qos.logback.core.spi.FilterReply.ACCEPT;
import static ch.qos.logback.core.spi.FilterReply.DENY;

public class AppenderFactory {
public RollingFileAppender createRollingFileAppender(String name, Level level) {

    LoggerContext context = (LoggerContext) LoggerFactory.getILoggerFactory();

    RollingFileAppender appender = new RollingFileAppender();  
    //这里设置级别过滤器  
    appender.addFilter(createLevelFilter(level));

    //设置上下文，每个logger都关联到logger上下文，默认上下文名称为default。  
    // 但可以使用<contextName>设置成其他名字，用于区分不同应用程序的记录。一旦设置，不能修改。  
    appender.setContext(context);  
    //appender的name属性  
    appender.setName("file-" + level.levelStr.toLowerCase());  
    //设置文件名  
    appender.setFile(OptionHelper.substVars("${LOG\_HOME}/" + name + "/" + level.levelStr.toLowerCase() + ".log", context));

    appender.setAppend(true);

    appender.setPrudent(false);

    //加入下面两个节点  
    appender.setRollingPolicy(createSizeAndTimeBasedRollingPolicy(name,level,context,appender));  
    appender.setEncoder(createEncoder(context));  
    appender.start();  
    return appender;  
}

public ConsoleAppender createConsoleAppender(){  
    LoggerContext context = (LoggerContext) LoggerFactory.getILoggerFactory();  
    ConsoleAppender appender = new ConsoleAppender();  
    appender.setContext(context);  
    appender.setName("file-console");  
    appender.addFilter(createLevelFilter(Level.DEBUG));  
    appender.setEncoder(createEncoder(context));  
    appender.start();  
    return appender;  
}

private SizeAndTimeBasedRollingPolicy createSizeAndTimeBasedRollingPolicy(String name, Level level, LoggerContext context, FileAppender appender) {  
    //设置文件创建时间及大小的类  
    SizeAndTimeBasedRollingPolicy policy = new SizeAndTimeBasedRollingPolicy();  
    //文件名格式  
    String fp = OptionHelper.substVars("${LOG\_HOME}/" + name + "/backup/" + level.levelStr.toLowerCase() + "-%d{yyyy-MM-dd}.log.%i", context);  
    //最大日志文件大小  
    policy.setMaxFileSize(FileSize.valueOf("5MB"));  
    //设置文件名模式  
    policy.setFileNamePattern(fp);  
    //设置最大历史记录为30条  
    policy.setMaxHistory(30);  
    //总大小限制  
    policy.setTotalSizeCap(FileSize.valueOf("32GB"));  
    //设置父节点是appender  
    policy.setParent(appender);  
    //设置上下文，每个logger都关联到logger上下文，默认上下文名称为default。  
    // 但可以使用<contextName>设置成其他名字，用于区分不同应用程序的记录。一旦设置，不能修改。  
    policy.setContext(context);  
    policy.start();  
    return policy;  
}

private PatternLayoutEncoder createEncoder(LoggerContext context) {  
    PatternLayoutEncoder encoder = new PatternLayoutEncoder();  
    //设置上下文，每个logger都关联到logger上下文，默认上下文名称为default。  
    // 但可以使用<contextName>设置成其他名字，用于区分不同应用程序的记录。一旦设置，不能修改。  
    encoder.setContext(context);  
    //设置格式  
    encoder.setPattern("%d{yyyy-MM-dd HH:mm:ss.SSS} \[%thread\] %-5level %logger{36} %msg%n");  
    encoder.start();  
    return encoder;  
}

private LevelFilter createLevelFilter(Level level) {  
    LevelFilter levelFilter = new LevelFilter();  
    levelFilter.setLevel(level);  
    levelFilter.setOnMatch(ACCEPT);  
    levelFilter.setOnMismatch(DENY);  
    levelFilter.start();  
    return levelFilter;  
}

}

${LOG_HOME} 是 logback-spring.xml中的变量 ，如下

　　 　　 　　

　　测试代码如下，使用了swagger

@RestController
@RequestMapping("/test")
@Api(tags = "Test", description = "测试接口")
public class controller {

@Autowired  
private LoggerBuilder loggerBuilder;

@ApiOperation("测试")  
@PostMapping("/test")  
public ResultVO test(String name) {  
    Logger logger = loggerBuilder.getLogger(name,controller.class);

    logger.info("测试...我系{}",name);

    return ResultVO.success();  
}  

}

　　以上代码运行在　springboot(2.2.2.RELEASE) + logback、springboot(1.5.8.RELEASE) + logback  均有效