11-20 07:47 阅读 568

SpringBoot log打印及输出方式

这篇文章主要介绍了SpringBoot log打印及输出方式，具有很好的参考价值，希望对大家有所帮助。如有错误或未考虑完全的地方，望不吝赐教

SpringBoot log打印及输出

1 2	`import` `org.apache.commons.logging.Log;` `import` `org.apache.commons.logging.LogFactory;`

1 2	`private` `final` `Log log = LogFactory.getLog(AppController.class);` `//AppController.class为当前class文件，后台会输出这个class文件的log`

1 2	`String input =` `"%CN%";` `this.log.info(input);`

后台输出日志如下：

在这里插入图片描述

在application.yml文件中添加配置

1 2	`logging:` `path: D:\spring-boot-log` `//自定义输出日志的地址`

项目的部分功能需要新增加日志的操作记录，想了一圈还是使用切面技术比较方便解决。相当于代理，感觉比代理更牛逼。

说一下关键词自己理解的。

1

2

3

4

5

<dependency>

    <groupId>org.slf4j</groupId>

    <artifactId>slf4j-log4j12</artifactId>

    <version>1.7.25</version>

</dependency>

@Aspect

@Component

public class WebLogAcpect {

    private final static Logger orderLog = LoggerFactory.getLogger("order");

    //定义切点

    @Pointcut("execution(* com.qszhuang.backstage.service.OrderService.updateOrder*(..))")

    public void webLog() {

}

    @Before("webLog()")

    public void doBefore(JoinPoint joinPoint) {

        // 接收到请求，记录请求内容

        ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();

        if (!StringUtils.isEmpty(attributes)) {

            HttpServletRequest request = attributes.getRequest();

            // 记录下请求内容

            orderLog.info("URL : " + request.getRequestURL().toString());

            // orderLog.info("HTTP_METHOD : " + request.getMethod());

            orderLog.info("IP : " + HttpUtil.getIp(request));

            //获取操作人

            if (!StringUtils.isEmpty(request.getCookies())) {

                String cookieValueByName = HttpUtil.getCookieValueByName(request.getCookies(), WebSecurityConfig.TOKEN_HEADER);

                Map<String, Claim> stringClaimMap = TokenUtil.verifyToken(cookieValueByName);

                //方法名

                // orderLog.info("CLASS_METHOD : " + joinPoint.getSignature().getDeclaringTypeName() + "." + joinPoint.getSignature().getName());

                orderLog.info("订单号 : {},操作人:{}", Arrays.toString(joinPoint.getArgs()), stringClaimMap.get("adminUsername").asString());

}

        }else {

            orderLog.info("整点退款");

}

}

    @AfterReturning(returning = "ret", pointcut = "webLog()")

    public void doAfterReturning(Object ret) throws Throwable {

        // 处理完请求，返回内容

        orderLog.info("操作返回值 : " + ret);

}

}

创建文件 log4j.properties 打印order 日志到指定目录当然可以配置多个日志分别保存

log4j.rootLogger=INFO,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{ABSOLUTE} %5p %c{1}:%L - %m%n

#log4j.appender.timer_log=org.apache.log4j.DailyRollingFileAppender

#log4j.appender.timer_log.Append=true

#log4j.appender.timer_log.DatePattern='.'yyyy-MM-dd

#log4j.appender.timer_log.File=E:/logs/timer/timer.log

#log4j.appender.timer_log.Threshold=INFO

#log4j.appender.timer_log.layout=org.apache.log4j.PatternLayout

#log4j.appender.timer_log.layout.ConversionPattern=%d - %c [%t] %-5p %c %x %l - %m%n

log4j.logger.order=INFO,order_log

log4j.appender.order_log=org.apache.log4j.DailyRollingFileAppender

log4j.appender.order_log.Append=true

log4j.appender.order_log.DatePattern='.'yyyy-MM-dd

log4j.appender.order_log.File=../logs/order/order.log

log4j.appender.order_log.Threshold=INFO

log4j.appender.order_log.layout=org.apache.log4j.PatternLayout

log4j.appender.order_log.layout.ConversionPattern=[%p] [%d{yyyy-MM-dd HH:mm:ss}] %m%n

以上为个人经验，希望能给大家一个参考

原文链接：https://blog.csdn.net/stonezealot_zjr/article/details/98743160