import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
private static Logger logger = LoggerFactory.getLogger(TsfTest.class);
logger.info("打印參數(shù)：",map);

只能打印出：

2019-06-14 17:52:07.246 [http-apr-8080-exec-10] INFO c.q.m.p.b.rest.test - 打印參數(shù)：

解決方案

在第一個(gè)參數(shù)中加入花括號(hào){ }即可。

logger.info("打印參數(shù)：{}",map);

解決！

啟用設(shè)置org.slf4j.Logger打印并輸出日志

在resouces目錄下面新建logback.xml（此為L(zhǎng)ogback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(tái) 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(shí)配置輸出到文件和輸出到控制臺(tái)

<?xml version="1.0" encoding="UTF-8" ?>
<configuration scan="true" scanPeriod="3 seconds">
    <!--設(shè)置日志輸出為控制臺(tái)-->
    <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(?,?,?)]

以上為個(gè)人經(jīng)驗(yàn)，希望能給大家一個(gè)參考，也希望大家多多支持腳本之家。

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