springboot集成aop(实现日志的记录)

1. 添加AOP依赖

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-aop</artifactId>
</dependency>

2. 创建一个自定义的注解

package com.cn.annotation;

import java.lang.annotation.*;

@Documented
@Target(ElementType.METHOD)
@Retention(RetentionPolicy.RUNTIME)
public @interface SysAnnotation {

    String value() default "";
    String operation() default "";
    String exceptionMessage() default "系统内部异常";
}

3. 添加日志切面

package com.cn.aspect;

import com.cn.annotation.SysAnnotation;
import com.cn.dao.SysLogMapper;
import com.cn.model.SysLog;
import com.cn.utils.IPUtil;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Pointcut;
import org.aspectj.lang.reflect.MethodSignature;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

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

@Aspect
@Component
public class SysLogAspect {

    @Autowired
    private SysLogMapper sysLogMapper;

    @Pointcut("@annotation(com.cn.annotation.SysAnnotation)")
    public void logPointCut(){
    }

    /**
     * 环绕通知
     * @param point
     * @return
     * @throws Throwable
     */
    @Around("logPointCut()")
    public Object around(ProceedingJoinPoint point) throws Throwable {
        Object result = null;
        try{
            SysLog sysLog = new SysLog();
            MethodSignature signature = (MethodSignature) point.getSignature();
            Method method = signature.getMethod();
            //获取注解
            SysAnnotation controllerEndpoint = method.getAnnotation(SysAnnotation.class);
            if(controllerEndpoint!=null)
            {
                String operation = controllerEndpoint.operation();
                //注解上的操作描述
                sysLog.setOperation(operation);
            }
            ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
            HttpServletRequest request = attributes.getRequest();
            //操作者ip
            String ip = IPUtil.getIPAddress();
            sysLog.setIp(ip);
            //操作的url
            String url = request.getRequestURI();
            sysLog.setUrl(url);
            //操作时间
            SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");
            sysLog.setOperationTime(dateFormat.format(new Date()));
            sysLog.setUsername("马云");
            //执行目标方法
            result=point.proceed();
            //请求的方法名
            String className = point.getTarget().getClass().getName();
            String methodName = signature.getName();
            sysLog.setMethod(className + "." + methodName);
            sysLogMapper.insertSelective(sysLog);
        }catch (Exception e){
            e.printStackTrace();
        }
        return result;
    }
}

4. 启动项目，随便访问一个接口，然后查看数据库的操作日志是否添加,下面是我自己随便写的接口

@RestController
public class UserController {

    @Autowired
    private UserService userService;

    @SysAnnotation(operation = "查询用户",exceptionMessage = "查询用户失败")
    @GetMapping(value = "/getList")
    public List<UserInfo> getList(){
       return userService.getList();
    }

• 查看数据库的日志表，确实添加了一条，说明操作日志添加成功