mlog v1.0 已经发布，这是一个强调元信息的日志框架，专为对接分布式日志服务接口而设计。如将日志存入Mongo或ES或RDB，进而通过元信息进行快速查询。

目前已做为Solon cloud的日志服务接口使用...

1、示例（自带LoggerSimple）

public class LogDemo {
    static Logger logger = LoggerFactory.get(LogDemo.class);

    public static void main(String[] args) {
        //传统风格
        logger.info("{}:\n{}", "mlog", "hello world!");

        //元信息风格
        logger.info(Metainfo.m().put("order_id", "12").put("user_id", "1"),"{}:\n{}", "mlog", "hello world!");
        
        //元信息定制风格
        //logger.info(Tags.tag0("order_"+12).tag3("user_"+1),"{}:\n{}", "mlog", "hello world!");
    }
}

打印效果：

[warn] org.noear.mlog.ILoggerFactoryImpl load failed
2021-02-04T02:51:46.287Z [INFO] demo.LogDemo:: mlog:
  hello world!
2021-02-04T02:51:46.299Z [INFO] [order_id:12][user_id:1] demo.LogDemo:: mlog:
  hello world!

2、接口

public interface Logger {
    String getName();

    void setName(String name);



    default boolean isTraceEnabled() {
        return LoggerFactory.getLevel().code <= Level.TRACE.code;
    }


    void trace(Object content);
    void trace(String format, Object... args);
    void trace(Metainfo metainfo, Object content);
    void trace(Metainfo metainfo, String format, Object... args);



    default boolean isDebugEnabled() {
        return LoggerFactory.getLevel().code <= Level.DEBUG.code;
    }

    void debug(Object content);
    void debug(String format, Object... args);
    void debug(Metainfo metainfo, Object content);
    void debug(Metainfo metainfo, String format, Object... args);



    default boolean isInfoEnabled() {
        return LoggerFactory.getLevel().code <= Level.INFO.code;
    }

    void info(Object content);
    void info(String format, Object... args);
    void info(Metainfo metainfo, Object content);
    void info(Metainfo metainfo, String format, Object... args);



    default boolean isWarnEnabled() {
        return LoggerFactory.getLevel().code <= Level.WARN.code;
    }

    void warn(Object content);
    void warn(String format, Object... args);
    void warn(Metainfo metainfo, Object content);
    void warn(Metainfo metainfo, String format, Object... args);


    default boolean isErrorEnabled() {
        return LoggerFactory.getLevel().code <= Level.ERROR.code;
    }

    void error(Object content);
    void error(String format, Object... args);
    void error(Metainfo metainfo, Object content);
    void error(Metainfo metainfo, String format, Object... args);
}

详情查看：https://gitee.com/noear/mlog/releases/v1.0