spring记录日志

在资源包下  创建一个properties文件 配置一下内容

 ### set log levels ###log4j.rootLogger = debug ,  stdout ,  D ### \u8F93\u51FA\u5230\u63A7\u5236\u53F0 ###log4j.appender.stdout = org.apache.log4j.ConsoleAppenderlog4j.appender.stdout.Target = System.outlog4j.appender.stdout.layout = org.apache.log4j.PatternLayoutlog4j.appender.stdout.layout.ConversionPattern =  %d{ABSOLUTE} %5p %c{ 1 }:%L - %m%n### \u8F93\u51FA\u5230\u65E5\u5FD7\u6587\u4EF6 ###log4j.appender.D = org.apache.log4j.DailyRollingFileAppenderlog4j.appender.D.File = c:/logs/log.loglog4j.appender.D.Append = truelog4j.appender.D.Threshold = DEBUG ## \u8F93\u51FADEBUG\u7EA7\u522B\u4EE5\u4E0A\u7684\u65E5\u5FD7log4j.appender.D.layout = org.apache.log4j.PatternLayoutlog4j.appender.D.layout.ConversionPattern = %-d{yyyy-MM-dd HH:mm:ss}  [ %t:%r ] - [ %p ]  %m%n

在pom.xml导入 log4j jar包

<dependency>
  <groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.9</version>
</dependency>

例

package lesson03.log;import org.springframework.stereotype.Component;@Componentpublic class Admin {    public void addCom(){        System.out.println("添加商品");    }}package lesson03.log;import org.apache.log4j.Logger;import org.aspectj.lang.JoinPoint;import org.springframework.stereotype.Component;@Componentpublic class MyMessage {    Logger logger=Logger.getLogger(MyMessage.class);    public void beforeSeek(JoinPoint jp){       String method=jp.getSignature().getName();       logger.debug("方法："+method+"被调用");    }}package lesson03.log;import java.sql.SQLException;import org.springframework.context.ConfigurableApplicationContext;import org.springframework.context.support.ClassPathXmlApplicationContext;public class TestCotiner {    static ConfigurableApplicationContext context;    static{        context=new ClassPathXmlApplicationContext("lesson03/log/spring.xml");    }    public static void main(String[] args) throws SQLException {       User af=(User) context.getBean("user");       af.login();               Admin admin=(Admin)context.getBean("admin");       admin.addCom();       admin.addCom();       context.close();    }}package lesson03.log;import org.springframework.stereotype.Component;@Componentpublic class User {    public void login(){        System.out.println("用户登录");    }        public void buy(){        System.out.println("买东西");    }}spring..xml<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"    xmlns:context="http://www.springframework.org/schema/context"    xmlns:aop="http://www.springframework.org/schema/aop"    xsi:schemaLocation="    http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.2.xsd    http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.2.xsd    http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.2.xsd    "><context:component-scan base-package="lesson03.log"></context:component-scan><aop:config><!-- 定义切点（搜索条件）表达式  execution（返回值  包.类.方法(参数)） --><aop:pointcut expression="execution(* lesson03.log.*.*(..))" id="myPointCut"/><aop:aspect ref="myMessage"><aop:before method="beforeSeek" pointcut-ref="myPointCut"/></aop:aspect></aop:config></beans>