aop日志管理（摘）

<bean id="logAopBean" class="com.demo.common.aop.LogAop"></bean>
    <aop:config>
        <aop:aspect id="logAspect" ref="logAopBean">
            <aop:pointcut expression="execution(* com.demo..*(..))" id="allMethod"/>
            <aop:before method="before" pointcut-ref="allMethod" />
            <aop:after-throwing method="afterThrowing" pointcut-ref="allMethod" />
            <aop:after-returning method="afterReturn" pointcut-ref="allMethod" />
            <aop:after method="after" pointcut-ref="allMethod" />
        </aop:aspect>
    </aop:config>

2、日志处理类，

/**
 * LogAop.java
 *
 * Shanghai NTT DATA Synergy Software Co., Ltd. All Rights Reserved.
 * @author wyl
 * @date 2016-10-18
 */ 

package com.demo.common.aop;

import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.ProceedingJoinPoint;

/**
 * @author wyl
 * @Description TODO 
 * @date 2016-10-18
 *
 */

public class LogAop {
    public void before(JoinPoint call){
        String className = call.getTarget().getClass().getName();
        String methodName = call.getSignature().getName();
        System.out.println("开始执行:"+className+"."+methodName+"()方法...");
    }
    public void afterThrowing(JoinPoint call){
        String className = call.getTarget().getClass().getName();
        String methodName = call.getSignature().getName();
        System.out.println(className+"."+methodName+"()方法抛出了异常...");
    }
    public void afterReturn(JoinPoint call){
        String className = call.getTarget().getClass().getName();
        String methodName = call.getSignature().getName();
        System.out.println(className+"."+methodName+"()方法正常执行结束...");
    }
    public void after(JoinPoint call){
        String className = call.getTarget().getClass().getName();
        String methodName = call.getSignature().getName();
        System.out.println(className+"."+methodName+"()最终执行步骤(finally)...");
    }
    /*//用来做环绕通知的方法可以第一个参数定义为org.aspectj.lang.ProceedingJoinPoint类型
    public Object doAround(ProceedingJoinPoint call) throws Throwable {
        Object result = null;
        this.before(call);//相当于前置通知
        try {
            result = call.proceed();
            this.afterReturn(call); //相当于后置通知
        } catch (Throwable e) {
            this.afterThrowing(call); //相当于异常抛出后通知
            throw e;
        }finally{
            this.after(call);  //相当于最终通知
        }
        return result;
    }*/
}

二、注解方式

1、配置applicationContext.xml，

<bean id="logAspectBean" class="com.demo.common.aop.LogAnnotationAspect"></bean>
    <aop:aspectj-autoproxy/>

2、日志处理类，

/**
 * LogAnnotationAspect.java
 *
 * Shanghai NTT DATA Synergy Software Co., Ltd. All Rights Reserved.
 * @author wyl
 * @date 2016-10-18
 */ 

package com.demo.common.aop;

import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.After;
import org.aspectj.lang.annotation.AfterReturning;
import org.aspectj.lang.annotation.AfterThrowing;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;

/**
 * @author wyl
 * @Description TODO 
 * @date 2016-10-18
 *
 */

@Aspect  //定义切面类
public class LogAnnotationAspect {
    @SuppressWarnings("unused")
    //定义切入点，提供一个方法，这个方法的名字就是改切入点的id
    @Pointcut("execution(* com.demo..*(..))")
    private void allMethod(){}
    //针对指定的切入点表达式选择的切入点应用前置通知
    @Before("allMethod()")
    public void before(JoinPoint call) {
        String className = call.getTarget().getClass().getName();
        String methodName = call.getSignature().getName();
        System.out.println("开始执行:"+className+"."+methodName+"()方法...");
    }
    //访问命名切入点来应用后置通知
    @AfterReturning("allMethod()")
    public void afterReturn(JoinPoint call) {
        String className = call.getTarget().getClass().getName();
        String methodName = call.getSignature().getName();
        System.out.println(className+"."+methodName+"()方法正常执行结束...");
    }
    //应用最终通知
    @After("allMethod()")
    public void after(JoinPoint call) {
        String className = call.getTarget().getClass().getName();
        String methodName = call.getSignature().getName();
        System.out.println(className+"."+methodName+"()最终执行步骤(finally)...");
    }
    //应用异常抛出后通知
    @AfterThrowing("allMethod()")
    public void afterThrowing(JoinPoint call) {
        String className = call.getTarget().getClass().getName();
        String methodName = call.getSignature().getName();
        System.out.println(className+"."+methodName+"()方法抛出了异常...");
    }
    //应用周围通知
    //@Around("allMethod()")
    public Object doAround(ProceedingJoinPoint call) throws Throwable{
        Object result = null;
        this.before(call);//相当于前置通知
        try {
            result = call.proceed();
            this.afterReturn(call); //相当于后置通知
        } catch (Throwable e) {
            this.afterThrowing(call);  //相当于异常抛出后通知
            throw e;
        }finally{
            this.after(call);  //相当于最终通知
        }
        return result;
    }
}