springBoot通过AOP(面向切面编程)实现自动保存请求日志

1.定义注解

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

@Target(ElementType.METHOD) // 指定该注解只能应用于方法上
@Retention(RetentionPolicy.RUNTIME) // 运行时生效
public @interface Loggable { }

2.编写切面的实现

import com.alibaba.fastjson.JSON;
import com.jeecg.modules.jmreport.domain.SignUpInfo;
import com.jeecg.modules.jmreport.mapper.WangXiaoMapper;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

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

@Component
@Aspect
public class RequestResponseLoggerAspect {

//    private final Logger logger = LoggerFactory.getLogger(RequestResponseLoggerAspect.class);

    @Autowired
    private HttpServletRequest request;
    @Autowired
    private WangXiaoMapper wangXiaoMapper;

    @Around("@annotation(loggable)")
    public Object logMethodExecutionTime(ProceedingJoinPoint joinPoint, Loggable loggable) throws Throwable {
        long startTime = System.currentTimeMillis();

        String methodName = null;
        String className = null;
        Object result = null;
        Map<String, String[]> parameterMap = null;
        try {
            parameterMap = request.getParameterMap();
            methodName = joinPoint.getSignature().getName();
            className = joinPoint.getTarget().getClass().getSimpleName();

            result = joinPoint.proceed();

            //请求正常结束的日志
            saveToDatabase(methodName, className, parameterMap, result);
            return result;
        } catch (Exception e){
            //请求出错结束的日志
            saveToDatabase(methodName, className, parameterMap,e.getMessage());
            return e.getMessage();
        } finally {
//            long endTime = System.currentTimeMillis();
//            long executionTime = endTime - startTime;
//            logger.info("{}#{} executed in {} ms", className, methodName, executionTime);
        }
    }

    private void saveToDatabase(String methodName, String className, Map<String, String[]> parameterMap, Object result) {
        // 保存日志到数据库（写自己的业务代码，需要如何保存日志）
    }
}

3.Application启动类上添加@EnableAspectJAutoProxy注解

 4.需要保存日志的controller方法上添加注解@Loggable