springboot 日志 log4j

日志：

记录事件发生过程，方便问题追溯，问题查找，注意中文乱码及日志级别

jar包引入：

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<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-log4j</artifactId>
<version>1.3.8.RELEASE</version>
</dependency>


<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-logging</artifactId>
</exclusion>
</exclusions>
</dependency>

application.properties

1 2	#log4j #logging.config=classpath:log4j.properties

log4j.properties

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log4j.rootLogger=INFO, springboot, stdout

# Define all the appenders
# stdout
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target=System.out
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss.SSS} %-5p [%c{1}] %m%n

log4j.appender.springboot=org.apache.log4j.DailyRollingFileAppender
log4j.appender.springboot.File=./logs/server.log
log4j.appender.springboot.Append=true
log4j.appender.springboot.DatePattern='.'yyyy-MM-dd
log4j.appender.springboot.layout=org.apache.log4j.PatternLayout
log4j.appender.springboot.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss.SSS} %-5p [%c] %m%n

使用：

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import org.apache.log4j.Logger;

private final Logger logger = Logger.getLogger(当前类名.class);

logger.error("操作失败,msg," + e.getMessage());