java注解日志记录到数据库

1. pom添加依赖包

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

2.配置文件application.yml添加

spring：
　　　　aop:
  　　　　auto: true

3 创建实体类

package com.spring4all.entity;

import java.io.Serializable;
import java.util.Date;

/**
 * @author shafei
 * @version 1.0
 * @date 10:28 2019/9/7
 * @fun
 */
public class SysLogDO implements Serializable {
    private Long id;

    private String username; //用户名

    private String operation; //操作

    private String method; //方法名

    private String params; //参数

    private String ip; //ip地址

    private Date createDate; //操作时间

    public Long getId() {
        return id;
    }

    public void setId(Long id) {
        this.id = id;
    }

    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username;
    }

    public String getOperation() {
        return operation;
    }

    public void setOperation(String operation) {
        this.operation = operation;
    }

    public String getMethod() {
        return method;
    }

    public void setMethod(String method) {
        this.method = method;
    }

    public String getParams() {
        return params;
    }

    public void setParams(String params) {
        this.params = params;
    }

    public String getIp() {
        return ip;
    }

    public void setIp(String ip) {
        this.ip = ip;
    }

    public Date getCreateDate() {
        return createDate;
    }

    public void setCreateDate(Date createDate) {
        this.createDate = createDate;
    }
}

 4.使用spring 的 aop 技术切到自定义注解上，所以先创建一个自定义注解类

package com.spring4all.config.intercepors;

import java.lang.annotation.*;
/**
 * @author shafei
 * @version 1.0
 * @date 10:06 2019/9/7
 */
@Target(ElementType.METHOD) //注解放置的目标位置,METHOD是可注解在方法级别上
@Retention(RetentionPolicy.RUNTIME) //注解在哪个阶段执行
@Documented //生成文档
public @interface MyLog {
    String value() default "";
}

5.AOP实现：

package com.spring4all.config;

import com.alibaba.fastjson.JSON;
import com.spring4all.config.intercepors.MyLog;
import com.spring4all.entity.SysLogDO;
import com.spring4all.service.SysLogService;
import org.aspectj.lang.JoinPoint;
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.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import javax.servlet.http.HttpServletRequest;
import java.lang.reflect.Method;
import java.util.Date;
/**
 * @author shafei
 * @version 1.0
 * @date 10:08 2019/9/7
 * fun: 
 */
@Aspect
@Component
public class SysLogAspect {

    @Autowired
    private SysLogService sysLogService;

    //定义切点 @Pointcut
    //在注解的位置切入代码
    @Pointcut("@annotation( com.spring4all.config.intercepors.MyLog)")
    public void logPoinCut() {
    }

    //切面 配置通知
    @AfterReturning("logPoinCut()")
    public void saveSysLog(JoinPoint joinPoint) {
        System.out.println("切面。。。。。");
        //保存日志
        SysLogDO sysLog = new SysLogDO();

        //从切面织入点处通过反射机制获取织入点处的方法
        MethodSignature signature = (MethodSignature) joinPoint.getSignature();
        //获取切入点所在的方法
        Method method = signature.getMethod();

        //获取操作
        MyLog myLog = method.getAnnotation(MyLog.class);
        if (myLog != null) {
            String value = myLog.value();
            sysLog.setOperation(value);//保存获取的操作
        }

        //获取请求的类名
        String className = joinPoint.getTarget().getClass().getName();
        //获取请求的方法名
        String methodName = method.getName();
        sysLog.setMethod(className + "." + methodName);

        //请求的参数
        Object[] args = joinPoint.getArgs();
        //将参数所在的数组转换成json
        String params = JSON.toJSONString(args);
        sysLog.setParams(params);

        sysLog.setCreateDate(new Date());
        //获取用户名
        sysLog.setUsername("shafei");
        //获取用户ip地址
//        HttpServletRequest request = HttpContextUtils.getHttpServletRequest();
        sysLog.setIp("192.168.3.11");

        //调用service保存SysLog实体类到数据库
//        sysLogService.save(sysLog);
        System.out.println("将日志记录到数据库");
    }
}

6.接下来就可以在需要监控的方法上添加 aop的自定义注解

格式为 @+自定义注解的类名 

@Controller
@RequestMapping("/test")
public class UserController {
 
    @MyLog(value = "测试一下")
    @GetMapping("/test")
    @ResponseBody
    public String test(){
        return "test";
    }

}

说明：

记录日志的服务层接口SysLogService需要另外写，这个应该都会写；

参考https://www.jianshu.com/p/d0bbdf1974bd