springboot系列之AOP

简介

AOP(Aspect Oriented Programming)，即面向切面编程，是Spring框架的大杀器之一。
可以用来做全局异常捕获，请求uuid等等

直接上代码

• 添加依赖

		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-aop</artifactId>
		</dependency>

• 实战代码

@Aspect
@Component
public class AopController {

    private static final Logger logger = LoggerFactory.getLogger(AopController.class);
    ThreadLocal<Long> start = new ThreadLocal<>();

    /**
     * 定义一个切点
     */
    @Pointcut("execution(public * com.example.springredis.action.*.*(..))")
    public void handlerMethod() {
    }

    /**
     * 环绕执行
     * @param pjp
     * @return
     */

    @Around("handlerMethod()")
    public Object handlerPageResultBeanMethod(ProceedingJoinPoint pjp) {
        ServletRequestAttributes requestAttributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
        //获取请求request
        HttpServletRequest request = requestAttributes.getRequest();
        //获取请求response
        HttpServletResponse response = requestAttributes.getResponse();
        //获取请求路径名
        String declaringTypeName = pjp.getSignature().getDeclaringTypeName();
        System.out.println("路径"+declaringTypeName);
        //获取请求方法名
        String name = pjp.getSignature().getName();
        System.out.println("方法名"+name);
        start.set(System.currentTimeMillis());
        Object proceed =null;
        try {
            proceed = pjp.proceed();
            logger.info(pjp.getSignature() + " 方法执行耗时:" + (System.currentTimeMillis() - start.get()));
        } catch (Throwable e) {
        }

        return proceed;
    }
}