This method is AOP annotation type printing log, as for log insertion, this paper will not introduce.

The details are as follows:

Using the Gradle Guide Package:

compile 'org.springframework.boot:spring-boot-starter-aop

Customize an annotation class. The code is as follows:

package cn.cityworks.domain;
import java.lang.annotation.*;
/**
 * @author: zsx
 * @date: 2019/4/17 0017
 * This is a custom annotation class. Used to specify that XX access can be logged
 */
@Target(ElementType.METHOD) //The target location of annotation placement. METHOD is the annotated METHOD level
@Retention(RetentionPolicy.RUNTIME) //At which stage does annotation execute
@Documented //Generate documents
public @interface MyLog {
    String value() default "";
}

Add tangent method class. The code is as follows:

package cn.cityworks.utils;


import javax.servlet.http.HttpServletRequest;
import cn.cityworks.domain.MyLog;
import org.aspectj.lang.JoinPoint;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;
import com.alibaba.fastjson.JSON;
import org.aspectj.lang.annotation.AfterReturning;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Pointcut;
import org.aspectj.lang.reflect.MethodSignature;
import java.lang.reflect.Method;

@Aspect
@Component
public class AspectLog {
    //Define Pointcut @ Pointcut
    //Cut in code at annotation location
    @Pointcut("@annotation( cn.cityworks.domain.MyLog)")
    public void logPoinCut() {
    }
    @AfterReturning("logPoinCut()")
    public void saveSysLog(JoinPoint join) {
        //Can be printed on the console
        Logger log = LoggerFactory.getLogger(AspectLog.class);

        //The method of obtaining the weaving point by reflection mechanism from the section weaving point
        MethodSignature signature = (MethodSignature) join.getSignature();
        //How to get the pointcut
        Method method = signature.getMethod();
        //Acquisition operation
        MyLog myLog = method.getAnnotation(MyLog.class);
        if (myLog != null) {
            String value = myLog.value();
            log.info("Operation:"+value);//Save acquired operation
        }

        //Get the requested class name
        String className = join.getTarget().getClass().getName();
        //Get the requested method name
        String methodName = method.getName();
        log.info("Method name"+className + "." + methodName);

        //Requested parameters
        Object[] args = join.getArgs();
        //Convert the array of parameters to json
        String params = JSON.toJSONString(args);
        log.info("params:{}"+params);

        ServletRequestAttributes attriButes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
           HttpServletRequest request = attriButes.getRequest();

        //Print url
        log.info("url:{}", request.getRequestURL());

        //Print request mode
        log.info("requet_method:{}", request.getMethod());

        //Print class method
        log.info("class_method:{}", join.getStaticPart().getSignature().getDeclaringTypeName()
                + "."
                + join.getSignature().getName());
        //Printing parameters
        log.info("parameter:{}", join.getArgs());

        //Print Ip
        log.info("ip:{}", request.getLocalAddr());
    }

}

The preparations have been completed. Next, add notes to the corresponding Controller layer (methods without notes will not be printed).
Take login as an example, and add the annotation @ MyLog(value = "login"):

Results: