spring aop 日志

前提：已经部署spring(接上篇：spring 注解 容器的注入注出)

一：新增依赖包

　　1：log4j-1.2.9.jar(日志包)

　　2：spring-aspects-4.1.6.RELEASE.jar(spring包中存在)

　　3：aopalliance-1.0.jar(不在spring包中)

　　4：aspectjweaver-1.7.3.jar(不在spring包中)

二：新增切面类(aop.Log4jHandlerAOP)

三：新增log4j.properties(放入scr目录下)

四：修改applicationContext.xml

　　1：beans属性新增：xmlns:aop="http://www.springframework.org/schema/aop"

　　2：beans属性(xsi:schemaLocation)新增：http://www.springframework.org/schema/aop　　http://www.springframework.org/schema/aop/spring-aop-3.0.xsd

　　3：配置“切面”与“切入点”

ps:

　　1:applicationContext.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-2.5.xsd
           http://www.springframework.org/schema/context
           http://www.springframework.org/schema/context/spring-context-2.5.xsd
           http://www.springframework.org/schema/aop
           http://www.springframework.org/schema/aop/spring-aop-3.0.xsd">
    <context:annotation-config />
    <!-- 根据注解扫描类放入容器  -->
    <context:component-scan base-package="dao,service,servlet" />
    <!--升级： 注解,自动注入 -->
    <bean class="org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor" />

    <bean id="log4jHandlerAOP" class="aop.Log4jHandlerAOP"></bean>
    <aop:config>
        <aop:aspect id="logAspect" ref="log4jHandlerAOP">
            <aop:pointcut id="logPointCut" expression="execution(* service.*.* (..))" />
            <aop:around method="RecordLog" pointcut-ref="logPointCut" />
        </aop:aspect>
    </aop:config>

</beans>

　　2：Log4jHandlerAOP.java

package aop;

import org.apache.log4j.Logger;
import org.aspectj.lang.ProceedingJoinPoint;
import org.springframework.stereotype.Component;

@Component("log4jHandlerAOP")
public class Log4jHandlerAOP {
    Logger logger;
    public Object RecordLog(ProceedingJoinPoint pjp) throws Throwable {
        logger = Logger.getLogger(Log4jHandlerAOP.class);
        String className = pjp.getTarget().getClass().getSimpleName();
        String methodName = pjp.getSignature().getName();
        String userName = "豪1817";
        StringBuffer sb = new StringBuffer();
        sb.append("userName: " + userName);
        sb.append(" className: " + className);
        sb.append(" methodName: " + methodName);
        logger.info(sb.toString());
        Object obj = pjp.proceed();
        return obj;
    }
}

　　3：log4j.properties

### set log levels ###
log4j.rootLogger = debug,stdout,D ,E

### 输出到控制台     ###
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

### 输出到日志文件 按天创建日志     ###
log4j.appender.D = org.apache.log4j.DailyRollingFileAppender
log4j.appender.D.File = C:/D/log/logs/logPerDay.log
log4j.appender.D.Append = true
## 输出DEBUG级别以上的日志
log4j.appender.D.Threshold = DEBUG
log4j.appender.D.layout = org.apache.log4j.PatternLayout
log4j.appender.D.layout.ConversionPattern = %-d{yyyy-MM-dd HH:mm:ss}  [ %t:%r ] - [ %p ]  %m%n

### 输出到日志文件 按大小创建日志     ###
log4j.appender.E=org.apache.log4j.RollingFileAppender
log4j.appender.E.File=C:/D/log/logs/log.log
log4j.appender.E.MaxFileSize=50KB
log4j.appender.E.MaxBackupIndex=5
log4j.appender.E.layout=org.apache.log4j.PatternLayout
log4j.appender.E.layout.ConversionPattern = %-d{yyyy-MM-dd HH:mm:ss}  [ %t:%r ] - [ %p ]  %m%n