啟用設(shè)置org.slf4j.Logger打印并輸出日志方式

更新時間：2023年11月13日 15:18:03 作者：多多2017

這篇文章主要介紹了啟用設(shè)置org.slf4j.Logger打印并輸出日志方式,具有很好的參考價值,希望對大家有所幫助,如有錯誤或未考慮完全的地方,望不吝賜教

org.slf4j.Logger打印并輸出日志

在resouces目錄下面新建logback.xml（此為Logback推薦目錄）

內(nèi)容配置如下：

logback 分為兩種設(shè)置：

1. 輸出到控制臺 STDOUT

2. 輸出到文件 FILE

pom.xml配置

<properties>
    <slf4j.version>1.7.25</slf4j.version>
</properties>

<dependency>
    <groupId>org.slf4j</groupId>
    <artifactId>slf4j-api</artifactId>
    <version>${slf4j.version}</version>
</dependency>

<dependency>
    <groupId>org.slf4j</groupId>
    <artifactId>slf4j-log4j12</artifactId>
    <version>1.7.25</version>
</dependency>

logback.xml配置

（下面的配置同時配置輸出到文件和輸出到控制臺）

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

<configuration scan="true" scanPeriod="3 seconds">
    <!--設(shè)置日志輸出為控制臺-->
    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
        <encoder>
            <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} %-5level [%X{userId}] [%X{requestId}] %logger - %msg%n</pattern>
        </encoder>
    </appender>

    <!--設(shè)置日志輸出為文件-->
    <appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <File>logFile.log</File>
        <rollingPolicy  class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <FileNamePattern>logFile.%d{yyyy-MM-dd_HH-mm}.log.zip</FileNamePattern>
        </rollingPolicy>

        <layout class="ch.qos.logback.classic.PatternLayout">
            <Pattern>%d{HH:mm:ss,SSS} [%thread] %-5level %logger{32} - %msg%n</Pattern>
        </layout>
    </appender>

    <root>
        <level value="DEBUG"/>
        <appender-ref ref="STDOUT"/>
        <appender-ref ref="FILE"/>
    </root>


</configuration>

程序調(diào)用

1.申明 logger 變量

private Logger logger = LoggerFactory.getLogger(LoginLogDao.class);

2.在程序中調(diào)用日志

logger.debug(INSERT_LOGIN_LOG_SQL);

官方介紹網(wǎng)址：https://logback.qos.ch/demo.html

下面為官網(wǎng)介紹

logback-classic with two appenders: a ConsoleAppender and a RollingFileAppender. The RollingFileAppender sends logging events to a file called logFile.log and will rollover the active file every minute. The old file will be renamed and compressed to a zip file. The ConsoleAppender will output the logging requests to the console, and shorten the logger names to gain space on the console window, without loss of legibility. For example, ch.qos.logback.demo.prime.NumberCruncherImpl will be abbreviated as c.q.l.d.prime.NumberCruncherImpl.

輸出結(jié)果如下

isDebugEnabled true
2017-04-23 23:58:35,502 DEBUG [http-nio-8080-exec-6] (LoginLogDao.java:32) - INSERT INTO t_login_log(user_id,ip,login_datetime) VALUES(?,?,?)
2017-04-23 23:58:35,503 DEBUG [http-nio-8080-exec-6] (JdbcTemplate.java:869) - Executing prepared SQL update
2017-04-23 23:58:35,503 DEBUG [http-nio-8080-exec-6] (JdbcTemplate.java:616) - Executing prepared SQL statement [INSERT INTO t_login_log(user_id,ip,login_datetime) VALUES(?,?,?)]