AOP之记录用户日志行为

Aop之输出日志保存在数据库中

1.需要的依赖

 <dependencies>
        <!-- AOP依赖 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-aop</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.shiro</groupId>
            <artifactId>shiro-spring</artifactId>
            <version>1.4.1</version>
        </dependency>


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

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>2.1.3</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <scope>runtime</scope>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
            <exclusions>
                <exclusion>
                    <groupId>org.junit.vintage</groupId>
                    <artifactId>junit-vintage-engine</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-thymeleaf</artifactId>
        </dependency>
    </dependencies>

2.切面类和注解

package com.py.pj.common.annotation;

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

/**
 * @author WL
 * @version 创建时间：2020-9-17 19:10:00
 * @Description 保存日志自定义注解
 */

@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.METHOD)
public @interface SysLogRequired {
    String value();

}

package com.py.pj.common.aspect;

import java.lang.reflect.Method;
import java.util.Date;

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.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.py.pj.common.annotation.SysLogRequired;
import com.py.pj.sys.entity.SysLog;
import com.py.pj.sys.service.SysLogService;

/**
* @author WL
* @version 创建时间：2020-9-17 19:11:17
* @Description 切面类；实现日志的自动保存
*/
@Aspect
@Component

public class SysLogAspect {
    
    
    private static final Logger log = LoggerFactory.getLogger(SysLogAspect.class);
    
    @Autowired
    private SysLogService sysLogService;
    //  切入点；使用@annotation的方式，细粒度
    @Pointcut("@annotation(com.py.pj.common.annotation.SysLogRequired)")
    public void doSaveLog() {}
    
    // 环绕通知;
    @Around("doSaveLog()")
    public Object around(ProceedingJoinPoint jp) throws Throwable{
        long t1 = System.currentTimeMillis();
        Object result = jp.proceed();   //  要执行的方法
        long t2 = System.currentTimeMillis();
        long t = t2-t1;
        log.info("执行时间:{ }",t);
        SaveLog(jp,t);
        
        return result;
        
    }

    /**
     * @param jp
     * @param time
     * getSignature(): 该方法主要获取被代理对象的属性名称集合
     * getTarget():此处是获得了被代理类的对象Impl
     * @throws JsonProcessingException 
     * @throws SecurityException 
     * @throws NoSuchMethodException 
     */
    private void SaveLog(ProceedingJoinPoint jp, long time) throws JsonProcessingException, NoSuchMethodException, SecurityException {
        
        //List com.py.pj.sys.serviceImpl.SysDeptServiceImpl.findObjects()
        MethodSignature ms = (MethodSignature) jp.getSignature();    //....方法全类名
        System.out.println("ms="+ms);
        Class<?> targetClass = jp.getTarget().getClass();            // 被代理的类的反射
        String targetName = targetClass.getName();    //DaoImpl被代理的类对象的名字
        System.out.println("targetName="+targetName);//com.py.pj.sys.serviceImpl.SysDeptServiceImpl
        //    获取接口声明方法
        String MethodName = ms.getMethod().getName();//findObjects
        
        System.out.println("MethodName="+MethodName);
        
        Class<?>[] parameterTypes = ms.getMethod().getParameterTypes();
        //    暴力反射获取方法
        Method targetMethod = targetClass.getDeclaredMethod(MethodName, parameterTypes);
        
        //获取方法参数
        Object[] paramObj = jp.getArgs();
        System.out.println("paramObj="+paramObj);
        String params = new ObjectMapper().writeValueAsString(paramObj);
        
        String  username = "weilong";
        SysLog slog = new SysLog();
        SysLogRequired operation = targetMethod.getDeclaredAnnotation(SysLogRequired.class);
        if (targetMethod!=null) {
            slog.setOperation(operation.value());
        }
        slog.setCreatedTime(new Date());
        slog.setIp("1.1.1.1");
        slog.setMethod(targetName+"."+MethodName);
        slog.setParams(params);
        slog.setUsername(username);
        slog.setTime(time);
        
        sysLogService.insertObjects(slog);
    }

}

3.在需要添加日志的业务方法上添加注释

。。。。