自定义注解通过aop实现操作日志管理

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本文链接： https://blog.csdn.net/qq_40693828/article/details/89156973

通过自定义注解，然后在控制层方法上加上此注解，通过aop切面拦截到该方法，获取注解值，实现操作日志管理。

1 自定义注解:

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

@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.METHOD)
public @interface LoggerAnnonation {
    String op();
}

2  编写切面（在普通类获取request可用使用RequestContextHolder .getCurrentRequestAttributes()）

import com.yc.entity.Logger;
import com.yc.entity.User;
import com.yc.service.LoggerService;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.After;
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 org.springframework.stereotype.Component;
import org.springframework.web.context.request.RequestAttributes;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import java.lang.reflect.Method;
import java.text.SimpleDateFormat;
import java.util.Date;

/**
 * @author an-ping
 * @date 2019/3/30
 */
@Aspect
@Component
public class LoggerAspectj {

    @Pointcut("execution(* com.yc.controllers..*(..))")
    public void pointcut(){}
    @Resource(name="loggerServiceImpl")
    LoggerService loggerService;

    @After(value = "pointcut()")
    public void after(JoinPoint pjp) throws Throwable{
       String methodName= pjp.getSignature().getName();

        RequestAttributes requestAttributes = RequestContextHolder.currentRequestAttributes();

        //String str = (String) requestAttributes.getAttribute("name", RequestAttributes.SCOPE_SESSION);

        HttpServletRequest request = ((ServletRequestAttributes)requestAttributes).getRequest();
        User user=(User)request.getSession().getAttribute("user");

        String  ip=request.getRemoteAddr();  //获取ip
        String op="";
       if(ip.equals("0:0:0:0:0:0:0:1")){
           ip="127.0.0.1";
       }
      // System.out.println(ip);
        if(user!=null){
            MethodSignature ms=null;
            ms=(MethodSignature)pjp.getSignature();
            Class[] argType=ms.getMethod().getParameterTypes();
            Method method=pjp.getTarget().getClass().getMethod(methodName,argType);
            if (method.isAnnotationPresent(LoggerAnnonation.class)) {
                LoggerAnnonation loggerAnnonation=method.getAnnotation(LoggerAnnonation.class);
                 op=loggerAnnonation.op();
              //  System.out.println(op+"操作日志");

                SimpleDateFormat  sdf=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
                String time=sdf.format(new Date());
                Logger logger=new Logger();
                logger.setIp(ip);
                logger.setOp(op);
                logger.setTime(time);
                loggerService.add(logger);
            }
        }

    }
}