【5】Spring Boot系列之 Aspects（1）【AspectJ】

客官°小女子只卖身不卖艺 2022-04-10 13:24 187阅读 0赞

（1）首先引入依赖

<dependency>
    	<groupId>org.aspectj</groupId>
    	<artifactId>aspectjweaver</artifactId>
    </dependency>

（2）日志统一管理代码

@Aspect
    @Order(1) //控制多个Aspect的执行顺序，越小越先执行
    @Component
    public class HttpLogAspect { 
    
    	private Logger LOG = LoggerFactory.getLogger(getClass());
    
        ThreadLocal<Long> startTime = new ThreadLocal<Long>();
    
        @Pointcut("execution(public * com.example.demo.controller.*.*(..))")
        public void httpLog() { }
    
        @Before("httpLog()")
        public void runBefore(JoinPoint joinPoint) { 
            startTime.set(System.currentTimeMillis());
            ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
            HttpServletRequest request = attributes.getRequest();
            LOG.info("URL : {}", request.getRequestURL()+" ["+request.getMethod()+"]");
            LOG.info("IP : {}", request.getRemoteAddr());
            Enumeration<String> headerNames = request.getHeaderNames();
            while(headerNames.hasMoreElements()) { 
                String nextElement = headerNames.nextElement();
                LOG.info(nextElement.toUpperCase() + " : {}", request.getHeader(nextElement));
            }
            LOG.info("CLASS_METHOD : {}", joinPoint.getSignature().getDeclaringTypeName() + "." + joinPoint.getSignature().getName());
            LOG.info("PARAM : {}", null != request.getQueryString() ? JSON.toJSONString(request.getQueryString().split("&")) : "EMPTY");
        }
    
        @AfterReturning(returning = "response", pointcut = "httpLog()")
        public void runAfterReturning(Object response) { 
            LOG.info("RESPONSE : {}", JSON.toJSONString(response));
            LOG.info("SPEND TIME : {}", (System.currentTimeMillis() - startTime.get()) + "ms");
        }
    }

（3）效果如下所示：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xpc2hrMzE0_size_16_color_FFFFFF_t_70]  
参考：[https://my.oschina.net/evanNmin/blog/1797914][https_my.oschina.net_evanNmin_blog_1797914]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xpc2hrMzE0_size_16_color_FFFFFF_t_70]: /images/20220330/725e5332208d45948329d5fea8924580.png
[https_my.oschina.net_evanNmin_blog_1797914]: https://my.oschina.net/evanNmin/blog/1797914