SpringBoot log4j配置

[sheng_wang]

SpringBoot是一个mvc微框架，配置方便，易上手，目前参与的项目中，使用了不同的SpringBoot版本，1.5.3.Release和2.0.0.Release，在相应的项目中，目前使用两种不同的日志配置方式，下面这里说一下如何整合Log4j进行日志打印和按天备份(附件是项目中用到的配置，可参见)：

------SpringBoot1.5.3.RELEASE+log4j

1、创建springboot项目后，添加maven依赖

 <!-- spring boot start -->

<dependency>

        <groupId>org.springframework.boot</groupId>

       <artifactId>spring-boot-starter</artifactId>

      <exclusions> <!-- 排除自带的logback依赖 -->

            <exclusion>

                   <groupId>org.springframework.boot</groupId>

                  <artifactId>spring-boot-starter-logging</artifactId>

           </exclusion>

        </exclusions>

</dependency>

<!-- springboot-log4j -->

<dependency>

        <groupId>org.springframework.boot</groupId>

        <artifactId>spring-boot-starter-log4j</artifactId>   

        <version>1.3.8.RELEASE</version>

</dependency>

2、在resources目录创建log4j的配置文件log4j.perporties配置文件

# Global logging configuration
log4j.rootLogger=DEBUG, stdout, fileout

# Console output...
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.conversionPattern=[%5p][%d{yyyy-MM-dd HH:mm:ss.SSS}] [%15.15t] [%55.55c:%4L] : %m%n

# Single Log
log4j.logger.org.springframework.web=error
log4j.logger.org.springframework.aop=error
log4j.logger.org.springframework.jdbc.datasource=error
log4j.logger.org.springframework.beans=error
log4j.logger.org.springframework.core=error
log4j.logger.org.springframework.scheduling=error
log4j.logger.org.springframework.context=error
log4j.logger.org.springframework.boot.autoconfigure=error
log4j.logger.org.mybatis=info
log4j.logger.druid.sql.Connection=error
log4j.logger.druid.sql.Statement=error
log4j.logger.druid.sql.ResultSet=error
log4j.logger.org.apache=error
log4j.logger.springfox.documentation=error
log4j.logger.org.flowable=error

# for file
log4j.appender.fileout=org.apache.log4j.DailyRollingFileAppender
log4j.appender.fileout.Append=true
log4j.appender.fileout.File=logs/moom-server.log
log4j.appender.fileout.DatePattern='_'yyyyMMdd
log4j.appender.fileout.layout=org.apache.log4j.PatternLayout
log4j.appender.fileout.layout.ConversionPattern=[%5p][%d{yyyy-MM-dd HH:mm:ss.SSS}] [%15.15t] [%55.55c:%4L] : %m%n

3、类中调用

import org.apache.log4j.Logger
@Service
public class CommandToolServiceImpl implements CommandToolService {

    private static Logger LOGGEER = Logger.getLogger(CommandToolServiceImpl.class);

4、启动工程后，会在控制台和工程目录下创建一个logs目录，里面生成日志文件，输出日志格式如下：


------SpringBoot2.0.0.RELEASE+log4j2

1、创建springboot项目后，添加maven依赖

 <!-- spring boot start -->

<dependency>

        <groupId>org.springframework.boot</groupId>

       <artifactId>spring-boot-starter</artifactId>

      <exclusions> <!-- 排除自带的logback依赖 -->

            <exclusion>

                   <groupId>org.springframework.boot</groupId>

                  <artifactId>spring-boot-starter-logging</artifactId>

           </exclusion>

        </exclusions>

</dependency>

<!-- springboot-log4j -->

<dependency>

        <groupId>org.springframework.boot</groupId>

        <artifactId>spring-boot-starter-log4j2</artifactId>   

        <version>2.0.5.RELEASE</version>

</dependency>

2、在resources目录创建log4j2的配置文件log4j2.yml配置文件

# 共有8个级别，按照从低到高为：ALL < TRACE < DEBUG < INFO < WARN < ERROR < FATAL < OFF。
Configuration:
  status: debug
  monitorInterval: 30
  Properties: # 定义全局变量
    Property: # 缺省配置（用于开发环境）。其他环境需要在VM参数中指定，如下：
      - name: log.level.console
        value: debug
      - name: log.path
        value: logs
      - name: project.name
        value: smsac-server-7777
      - name: log.pattern
        value: "[%5p][%d{yyyy-MM-dd HH:mm:ss.SSS}] [%15.15t] [%55.55c:%4L] : %m%n"
  Appenders:
    Console:  #输出到控制台
      name: CONSOLE
      target: SYSTEM_OUT
      PatternLayout:
        pattern: ${log.pattern}
    # 启动日志
    RollingFile:
      - name: ROLLING_FILE
        ignoreExceptions: false
        fileName: ${log.path}/${project.name}.log
        filePattern: "${log.path}/baklog/$${date:yyyy-MM}/${project.name}-%d{yyyy-MM-dd}-%i.log.gz"
        PatternLayout:
          pattern: ${log.pattern}
        Policies:
          TimeBasedTriggeringPolicy:  # 按天分类
            modulate: true
            interval: 1
          SizeBasedTriggeringPolicy:  # 最大归档大小  
            size: "256 MB"
        DefaultRolloverStrategy:      # 文件最多100个
          max: 100
  Loggers:
    Root:
      level: debug
      AppenderRef:
        - ref: CONSOLE
        - ref: ROLLING_FILE
    Logger:
      - name: java.lang
        level: error
        additivity: false
        AppenderRef:
          - ref: CONSOLE
          - ref: ROLLING_FILE
      - name: com.neusoft.smsac
        level: debug
        additivity: false
        AppenderRef:
          - ref: CONSOLE
          - ref: ROLLING_FILE
      - name: com.neusoft.smsac.domain
        level: debug
        additivity: false
        AppenderRef:
          - ref: CONSOLE
          - ref: ROLLING_FILE
      - name: org.springframework.web
        level: error
        additivity: false
        AppenderRef:
          - ref: CONSOLE
          - ref: ROLLING_FILE

3、类中调用

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

@Service
@Transactional
public class SmsAnalysisServiceImpl implements SmsAnalysisService {

    private static Logger LOGGEER = LoggerFactory.getLogger(SmsAnalysisServiceImpl.class);

4、启动工程后，会在控制台和工程目录下创建一个logs目录，里面生成日志文件，输出日志格式如下：
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[十八道胡同]