springboot Aop web 层日志管理

首先定义一个切面，用注解@Aspect

设置切入点

@Pointcut("execution(public * com.myspringboottest.springbootdemo.controller.*.*(..))")

声明要切的是controller包下的

具体所有代码

import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.*;
import org.springframework.stereotype.Component;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

import javax.servlet.http.HttpServletRequest;
import java.util.Arrays;

/**
 * @Auther: AmbroseLee
 * @Date: 2018/9/4 16:56
 * @Description:  web层日志切面
 */
//@Aspect
// 作用是把当前类标识为一个切面供容器读取
@Aspect
@Component
public class LogAspect {
//    设置切入点
    @Pointcut("execution(public * com.myspringboottest.springbootdemo.controller.*.*(..))")
    public void webLog(){}
//@Before
//标识一个前置增强方法，相当于BeforeAdvice的功能
    @Before("webLog()")
    public void deBefore(JoinPoint joinPoint) throws Throwable {
        // 接收到请求，记录请求内容
        ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
        HttpServletRequest request = attributes.getRequest();
        // 记录下请求内容
        System.out.println("URL : " + request.getRequestURL().toString());
        System.out.println("HTTP_METHOD : " + request.getMethod());
        System.out.println("IP : " + request.getRemoteAddr());
        System.out.println("CLASS_METHOD : " + joinPoint.getSignature().getDeclaringTypeName() + "." + joinPoint.getSignature().getName());
        System.out.println("ARGS : " + Arrays.toString(joinPoint.getArgs()));

    }
//    @AfterReturning
//    后置增强，相当于AfterReturningAdvice，方法退出时执行
    @AfterReturning(returning = "ret", pointcut = "webLog()")
    public void doAfterReturning(Object ret) throws Throwable {
        // 处理完请求，返回内容
        System.out.println("方法的返回值 : " + ret);
    }
//@AfterThrowing
//异常抛出增强，相当于ThrowsAdvice
    //后置异常通知
    @AfterThrowing("webLog()")
    public void throwss(JoinPoint jp){
        System.out.println("方法异常时执行.....");
    }
//@After
//final增强，不管是抛出异常或者正常退出都会执行
    //后置最终通知,final增强，不管是抛出异常或者正常退出都会执行
    @After("webLog()")
    public void after(JoinPoint jp){
        System.out.println("方法最后执行.....");
    }
//@Around
//环绕增强，相当于MethodInterceptor
    //环绕通知,环绕增强，相当于MethodInterceptor
    @Around("webLog()")
    public Object arround(ProceedingJoinPoint pjp) {
        System.out.println("方法环绕start.....");
        try {
            Object o =  pjp.proceed();
            System.out.println("方法环绕proceed，结果是 :" + o);
            return o;
        } catch (Throwable e) {
            e.printStackTrace();
            return null;
        }
    }
}

写一个controller进行测试一下

import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

/**
 * @Auther: AmbroseLee
 * @Date: 2018/9/4 16:52
 * @Description:
 */
@RestController
@RequestMapping("/aop")
public class AopController {
    @RequestMapping("demoOne")
    public String demoOne(){
        return "demoOne";
    }
    @RequestMapping("demoTwo")
    public Object demoTwo(){
        return 1/0;
    }
    @RequestMapping("demoThree")
    public Object demoThree(){
        return new int [-1];
    }
}