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springBoot Aop打印日志

1.类上加@Aspect，@Component注解

2.@Pointcut()定义一个切点，里面填写路径，一般是所有controller中的所有方法，所有的参数

3.通知类型：

@Before()前置通知，里面填写切点，即在方法执行前执行；

@After()后置通知，里面填写切点，即在方法执行后执行；

@Around()环绕通知，里面填写切点，即在方法执行前后都执行；

4.切点@Pointcut()和通知@Around()合起来叫做切面@Aspect

Aop打印日志代码

import com.alibaba.fastjson.JSONObject;
import com.alibaba.fastjson.support.spring.PropertyPreFilters;
import com.jiawa.wiki.util.RequestContext;
import com.jiawa.wiki.util.SnowFlake;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.Signature;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.slf4j.MDC;
import org.springframework.stereotype.Component;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;
import org.springframework.web.multipart.MultipartFile;

import javax.annotation.Resource;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;

@Aspect
@Component
public class LogAspect {

    private final static Logger LOG = LoggerFactory.getLogger(LogAspect.class);

    /** 定义一个切点 */
    @Pointcut("execution(public * com.jiawa.*.controller..*Controller.*(..))")
    public void controllerPointcut() {}

    @Resource
    private SnowFlake snowFlake;

    @Before("controllerPointcut()")
    public void doBefore(JoinPoint joinPoint) throws Throwable {

        // 增加日志流水号
        MDC.put("LOG_ID", String.valueOf(snowFlake.nextId()));

        // 开始打印请求日志
        ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
        HttpServletRequest request = attributes.getRequest();
        Signature signature = joinPoint.getSignature();
        String name = signature.getName();

        // 打印请求信息
        LOG.info("------------- 开始 -------------");
        LOG.info("---------------AOP--------------");
        LOG.info("请求地址: {} {}", request.getRequestURL().toString(), request.getMethod());
        LOG.info("类名方法: {}.{}", signature.getDeclaringTypeName(), name);
        LOG.info("远程地址: {}", request.getRemoteAddr());

        RequestContext.setRemoteAddr(getRemoteIp(request));

        // 打印请求参数
        Object[] args = joinPoint.getArgs();
		// LOG.info("请求参数: {}", JSONObject.toJSONString(args));

		Object[] arguments  = new Object[args.length];
        for (int i = 0; i < args.length; i++) {
            if (args[i] instanceof ServletRequest
                    || args[i] instanceof ServletResponse
                    || args[i] instanceof MultipartFile) {
                continue;
            }
            arguments[i] = args[i];
        }
        // 排除字段，敏感字段或太长的字段不显示
        String[] excludeProperties = {"password", "file"};
        PropertyPreFilters filters = new PropertyPreFilters();
        PropertyPreFilters.MySimplePropertyPreFilter excludefilter = filters.addFilter();
        excludefilter.addExcludes(excludeProperties);
        LOG.info("请求参数: {}", JSONObject.toJSONString(arguments, excludefilter));
    }

    @Around("controllerPointcut()")
    public Object doAround(ProceedingJoinPoint proceedingJoinPoint) throws Throwable {
        //执行方法前执行
        long startTime = System.currentTimeMillis();
        //执行业务内容
        Object result = proceedingJoinPoint.proceed();
        //执行方法后执行
        // 排除字段，敏感字段或太长的字段不显示
        String[] excludeProperties = {"password", "file"};
        PropertyPreFilters filters = new PropertyPreFilters();
        PropertyPreFilters.MySimplePropertyPreFilter excludefilter = filters.addFilter();
        excludefilter.addExcludes(excludeProperties);
        LOG.info("返回结果: {}", JSONObject.toJSONString(result, excludefilter));
        LOG.info("------------- AOP结束 耗时：{} ms -------------", System.currentTimeMillis() - startTime);
        return result;
    }

}

效果显示