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15. SSM AOP环绕通知注解实现日志

问题分析

当我们在做一个后台管理系统的时候,很多时候都会需要一个专门的日志模块,来记录登录的用户的操作,其一可以便于监测数据变化,其二,也可以记录用户做的一些操作,便于我们追根溯源,其三,当我们系统出现问题的时候,也可以通过查看日志,找出问题出在哪里,比如Tomcat Localhost Log。

解决思路

我们都知道,Spring是一个轻量级的IOC和AOP容器,那么IOC其实就是Inverse of Control,即控制反转,就是将创建对象的权利交给Spring,由它给我们创建对象,对象默认是单例的;AOP其实就是Aspect Oriented Programming 即基于动态代理实现的面向切面编程,简单理解来说,就比如切西瓜,把西瓜切上两刀,然后在两个切面拼接进你想要加入的东西,然后再连起来。

那么我们有了AOP其实思路就会很明确了,只需要在要执行的目标方法之前和之后,插入我们想要插入的代码,就可以了

具体实现

1.日志Domain

需要说明一下,我这里的Getter&Setter方法因为使用的 Lombok 插件,所以直接加上 @Data 由插件底层帮我实现了,这个除了需要在idea里面下载 Lombok 的插件,还需要导入pom依赖,这里把依赖附上

<!-- https://mvnrepository.com/artifact/org.projectlombok/lombok -->
<dependency>
    <groupId>org.projectlombok</groupId>
    <artifactId>lombok</artifactId>
    <version>1.18.8</version>
    <scope>provided</scope>
</dependency>

具体Domain如下

package com.arvin.crm.domain;
import com.fasterxml.jackson.annotation.JsonFormat;
import lombok.Data;
import org.springframework.format.annotation.DateTimeFormat;
import java.util.Date;

//系统日志记录
@Data
public class SystemLog extends BaseDomain {
    //操作用户 应该是用户的姓名
    private String opUser;
    //操作时间
    private Date opTime;
    //登录ip
    private String opIp;
    //使用功能
    private String function;
    //操作参数信息
    private String params;
    //操作类型
    private String operateType;
    //操作结果
    private String operateResult;

    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss",timezone = "GMT+8")
    public Date getOpTime() {
        return opTime;
    }

    @DateTimeFormat(pattern = "yyyy-MM-dd HH:mm:ss")
    public void setOpTime(Date opTime) {
        this.opTime = opTime;
    }
}

2.Mapper层

2.1 SystemLogMapper

这个地方需要说明一下,我的SystemLogMapper里面什么都没有写,是因为我集成了 BaseMapper ,即将公共的方法抽取到了 BaseMapper 里面去

package com.arvin.crm.mapper;
/*
 *@ClassName:EmployeeMapper
 *@Author:Arvin_yuan
 *@Date:2020/3/21 21:19
 *@Description:TODO
 */
import com.arvin.crm.domain.SystemLog;

public interface SystemLogMapper extends BaseMapper<SystemLog> {
}

2.2 SystemLogMapper.xml

这里要说明一下的是,我的高级查询和分页是专门封装了一个BaseQuery和SystemLogQuery,因为感觉好像跟我们的主题没有大的关系,所以就没有贴代码上来,不过有需要的话,可以留言或者私信我,我私发或者改贴都可以

<?xml version='1.0' encoding='UTF-8'?>
<!DOCTYPE mapper
        PUBLIC "-//batis.org//DTD Mapper 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.arvin.crm.mapper.SystemLogMapper">
    <!--抽取的公共的查询所有的代码-->
    <sql id="All">
        select
            s.id,
            s.opUser,
            s.opTime,
            s.opIp,
            s.function,
            s.params,
            s.operatetype,
            s.operateresult,
            t.companyName tcompanyName
        from
            t_systemLog s
    </sql>

    <!--查询所有-->
    <select id="getAll" resultType="systemLog">
        <include refid="All"/>
    </select>

    <!--增加-->
    <insert id="save" useGeneratedKeys="true" keyProperty="id" parameterType="systemLog">
        insert into  t_systemLog(
            opUser,
            opTime,
            opIp,
            function,
            params,
            operatetype,
            operateresult
        )
        values(
            #{opUser},
            #{opTime},
            #{opIp},
            #{function},
            #{params},
            #{operatetype},
            #{operateresult}
    </insert>

    <!--删除-->
    <delete id="delete" parameterType="Long">
        delete from t_systemLog where id = #{id}
    </delete>
    
    <!--查询所有的条数-->
    <sql id="count">
        select count(*) from t_systemLog
    </sql>
    
    <!--高级查询-->
    <sql id="sqlWhere">
        <where>
            <if test="opUser != null and opUser != ''">
                and opUser like concat("%",#{opUser},"%")
            </if>
            <if test="startTime != null and endTime != null">
                and opTime >= #{startTime} and opTime <= #{endTime}
            </if>
            <if test="opIp != null and opIp != ''">
                and opIp = #{opIp}
            </if>
            <if test="function != null and function != ''">
                and function like concat("%",#{function},"%")
            </if>
            <if test="params != null and params != ''">
                and params like concat("%",#{params},"%")
            </if>
            <if test="operatetype != null and operatetype != ''">
                and operatetype like concat("%",#{operatetype},"%")
            </if>
            <if test="operateresult != null and operateresult != ''">
                and operateresult like concat("%",#{operateresult},"%")
            </if>
        </where>
    </sql>

    <!--查询总条数-->
    <select id="queryTotal" parameterType="systemLogQuery" resultType="Long">
        <include refid="count"/>
        <include refid="sqlWhere"/>
    </select>

    <!--分页查询-->
    <select id="queryData" parameterType="systemLogQuery" resultMap="queryAllLog">
        <include refid="All"/>
        <include refid="sqlWhere"/>
        limit ${start}, ${pageSize}
    </select>
    
    <!--封装结果集-->
    <resultMap id="queryAllLog" type="systemLog">
        <id column="id" property="id"></id>
        <result column="opUser" property="opUser"></result>
        <result column="opTime" property="opTime"></result>
        <result column="opIp" property="opIp"></result>
        <result column="function" property="function"></result>
        <result column="params" property="params"></result>
        <result column="operatetype" property="operatetype"></result>
        <result column="operateresult" property="operateresult"></result>
    </resultMap>
</mapper>

3.SystemLogService

3.1 ISystemLogService

package com.arvin.crm.service;
/*
 *@ClassName:EmployeeService
 *@Author:Arvin_yuan
 *@Date:2020/3/21 21:31
 *@Description:TODO
 */

import com.arvin.crm.domain.SystemLog;
import java.sql.SQLException;

public interface ISystemLogService extends BaseService<SystemLog>{
}

3.2 SystemLogServiceImpl

package com.arvin.crm.service.impl;
/*
 *@ClassName:SystemLogServiceImpl
 *@Author:Arvin_yuan
 *@Date:2020/3/31 2:33
 *@Description:TODO
 */

import com.arvin.crm.domain.SystemLog;
import com.arvin.crm.service.ISystemLogService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

@Service
public class SystemLogServiceImpl extends BaseServiceImpl<SystemLog> implements ISystemLogService {
}

哈哈哈,看完是不是一脸懵逼,我这里面上面都没写,算了吧算了吧,还是把抽取的Base代码贴出来哈,上面的BaseQuery先不贴,哎,没贴是怕太长了,看起来不大美观,有需要找我哈

IBaseService

package com.arvin.crm.service;
/*
 *@ClassName:BaseService
 *@Author:Arvin_yuan
 *@Date:2020/3/21 20:28
 *@Description:TODO
 */

import com.arvin.crm.query.BaseQuery;
import com.arvin.crm.utils.PageList;
import java.io.Serializable;
import java.util.List;

public interface IBaseService<T> {

    //查找所有
    List<T> getAll();

    //查找单个
    T getOne(Serializable id);

    //保存
    void save(T t);

    //删除
    void delete(Serializable ids);

    //修改
    void update(T t);

    //分页方法
    PageList queryPage(BaseQuery baseQuery);

}

BaseServiceImpl

package com.arvin.crm.service.impl;
/*
 *@ClassName:BaseServiceImpl
 *@Author:Arvin_yuan
 *@Date:2020/3/21 20:28
 *@Description:TODO
 */

import com.arvin.crm.mapper.BaseMapper;
import com.arvin.crm.query.BaseQuery;
import com.arvin.crm.service.BaseService;
import com.arvin.crm.utils.PageList;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.transaction.annotation.Propagation;
import org.springframework.transaction.annotation.Transactional;
import java.io.Serializable;
import java.util.List;

@Transactional(propagation = Propagation.SUPPORTS, readOnly = true)
public class BaseServiceImpl<T> implements BaseService<T> {

    @Autowired
    private BaseMapper<T> baseMapper;

    @Override
    public List getAll() {
        return baseMapper.getAll();
    }

    @Override
    public T getOne(Serializable id) {
        return baseMapper.getOne(id);
    }

    @Override
    @Transactional
    public void save(T t) {
        baseMapper.save(t);
    }

    @Override
    @Transactional
    public void delete(Serializable id) {
        baseMapper.delete(id);
    }

    @Override
    @Transactional
    public void update(T t) {
        baseMapper.update(t);
    }

    //分页公共的方法
    @Override
    public PageList queryPage(BaseQuery baseQuery) {
        PageList pageList = new PageList();
        //总数 select count(*) from xxx where ?
        Long total =  baseMapper.queryTotal(baseQuery);
        //select * from xxx where xxx limit
        List rows =  baseMapper.queryData(baseQuery);
        pageList.setTotal(total);
        pageList.setRows(rows);
        return pageList;
    }
}

4.SystemLogController

这个地方有必要说明一下,我只是写了查看、删除和删除多条日志,是因为吧,日志肯定不能做修改,那不然就没有真实性了,但你如果要直接修改数据库,那当我没说,哈哈哈

package com.arvin.crm.web.controller;
/*
 *@ClassName:controller
 *@Author:Arvin_yuan
 *@Date:2020/3/21 21:43
 *@Description:TODO
 */

import com.arvin.crm.aspect.SystemLogAnno;
import com.arvin.crm.domain.SystemLog;
import com.arvin.crm.query.SystemLogQuery;
import com.arvin.crm.service.ISystemLogService;
import com.arvin.crm.utils.AjaxResult;
import com.arvin.crm.utils.PageList;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.*;
import java.util.List;

@Controller
@RequestMapping("/systemLog")
@CrossOrigin//前后端分离支持注解
public class SystemLogController {

    @Autowired
    private ISystemLogService systemLogService;

    @SystemLogAnno(operateType = "日志查看")
    @ApiOperation(value = "查询所有日志", notes = "不需传入参数")
    @RequestMapping(value = "/page", method = RequestMethod.PATCH)
    @ResponseBody
    public PageList queryPage(@RequestBody SystemLogQuery systemLogQuery){
        System.out.println(systemLogQuery);
        PageList pageList = systemLogService.queryPage(systemLogQuery);
        for (Object row : pageList.getRows()) {
            //Thu Mar 26 12:08:16 CST 2020
            //Tue Apr 14 00:00:00 CST 2020
            System.out.println(row);
        }
        return systemLogService.queryPage(systemLogQuery);

    }

    @SystemLogAnno(operateType = "日志删除")
    @ApiOperation(value = "删除日志", notes = "传入日志id")
    @RequestMapping(value = "/{id}", method = RequestMethod.DELETE)
    @ResponseBody
    public AjaxResult delete(@PathVariable("id") Long id){
        try {
            systemLogService.delete(id);
            return new AjaxResult();
        } catch (Exception e) {
            e.printStackTrace();
            return new AjaxResult("网络错误,请重试");
        }
    }

    /**
     * 批量删除
     * @param ids
     * @return
     */
    @SystemLogAnno(operateType = "删除多条日志")
    @ApiOperation(value = "批量删除日志", notes = "传入日志id数组")
    @RequestMapping(value = "/d/{ids}", method = RequestMethod.DELETE)
    @ResponseBody
    public AjaxResult deleteList(@PathVariable("ids") Long[] ids){
        try {
            for (Long id : ids) {
                systemLogService.delete(id);
            }
            return new AjaxResult();
        } catch (Exception e) {
            e.printStackTrace();
            return new AjaxResult("网络错误,请重试");
        }
    }
}

5.自定义注解

这里的话,这个注解里面我只是写了一句 String operateType() default ""; ,这个根据自己需要来写哈,你要写其他的内容,你高兴就好

package com.arvin.crm.aspect;
/*
 *@ClassName:SystemLogAnno
 *@Author:Arvin_yuan
 *@Date:2020/3/31 18:50
 *@Description:TODO
 */

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

@Target({ElementType.METHOD, ElementType.PARAMETER}) // 方法 + 参数 注解
@Retention(RetentionPolicy.RUNTIME) // 运行时可见
public @interface SystemLogAnno {
    String operateType() default "";// 记录日志的操作类型
}

这里需要来一条分割线,为什么呢?说实在话,因为下面的内容才是正儿八经的实现类,不,是实现功能的类哈,其他类都是辅助类

6.切面类 SystemLogAspect

这个里面呢,我把我知道的都写在注释上面的,应该大致都能看懂

关于 获取IP 的方法,写了3个,这个我是真不会啊,在网上找的,但是只有方法3我是成功了的,反正嘛,各人情况不同,也许我这行不通说不定哪位朋友拿过去就能执行呢?

我这里获取到的是 IPv4地址 ,如果需要IPv6或者其他地址,可以把 inetAddress.getHostAddress(); 这个结果打印出来,然后自己找就行,亲测可行,至于这个方法的注释,我是真写不出来,各位看官见谅

package com.arvin.crm.aspect;
/*
 *@ClassName:LogAopAspect
 *@Author:Arvin_yuan
 *@Date:2020/3/31 18:53
 *@Description:TODO
 */

import com.arvin.crm.domain.Employee;
import com.arvin.crm.domain.SystemLog;
import com.arvin.crm.service.ISystemLogService;
import com.sun.deploy.net.HttpRequest;
import com.sun.xml.internal.bind.CycleRecoverable;
import javafx.scene.control.ContextMenuBuilder;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.reflect.MethodSignature;
import org.omg.CORBA.Context;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.util.StringUtils;
import javax.servlet.http.HttpServletRequest;
import java.lang.reflect.Method;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.sql.SQLException;
import java.util.Date;
import java.util.Enumeration;

@Component
@Aspect
public class SystemLogAopAspect {

    @Autowired
    private ISystemLogService systemLogService;// 系统日志的Service

    @Autowired
    private HttpServletRequest request;

    @Around("@annotation(com.arvin.crm.aspect.LogAnno)")//这个是配置我们实现切面所需注解所在的类
    public Object aroundAdvice(ProceedingJoinPoint joinPoint) throws Throwable {
        //准备一个结果集对象
        Object result = null;

        // 1.方法执行前的处理,相当于前置通知
        // 获取方法签名
        MethodSignature methodSignature = (MethodSignature) joinPoint.getSignature();
        // 获取方法对象
        Method method = methodSignature.getMethod();
        // 获取方法名
        String methodName = method.getName();
        // 获取方法上面的注解
        SystemLogAnno anno = method.getAnnotation(SystemLogAnno.class);
        // 传入方法的参数
        String parameters = method.getParameters().toString();
        // 获取注解里面描述的类型 对应 String operateType() default "";
        String operateType = anno.operateType();
        // 获取session中存的当前登录用户信息
        Employee employee = (Employee) request.getSession().getAttribute("USER_INFO");
        // 创建一个切面对象来调用查询ip的方法
        SystemLogAopAspect aop = new SystemLogAopAspect();
        String ip = aop.getIpAddress();



        // 设置参数进日志对象
        // 创建一个日志对象(准备记录日志)
        SystemLog systemLog = new SystemLog();
        // 设置操作用户名
        systemLog.setOpUser(employee.getUsername());
        // 设置当前用户对应的租户
        // systemLog.setTenant(employee.getTenant());
        // 设置IP
        systemLog.setOpIp(ip);
        // 使用功能
        systemLog.setFunction(methodName);
        // 设置方法参数
        systemLog.setParams(parameters);
        // 操作类型
        systemLog.setOperatetype(operateType);




        try {
            //这里执行注解对应的方法
            result = joinPoint.proceed();

            // 2.相当于后置通知(方法成功执行)
            systemLog.setOperateresult("正常");// 设置操作结果
        } catch (SQLException e) {
            // 3.相当于异常通知部分
            systemLog.setOperateresult("失败");// 设置操作结果
        } finally {
            // 4.相当于最终通知
            try {
                // 设置操作时间
                systemLog.setOpTime(new Date());
                systemLogService.addLog(systemLog);// 添加日志记录
            } catch (SQLException e) {
                e.printStackTrace();
            }
        }
        return result;
    }

    //获取IP 方法一:
    /*public String getIpAddress() {
        String ip = request.getHeader("x-forwarded-for");
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getHeader("Proxy-Client-IP");
        }
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getHeader("WL-Proxy-Client-IP");
        }
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getHeader("HTTP_CLIENT_IP");
        }
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getHeader("HTTP_X_FORWARDED_FOR");
        }
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getRemoteAddr();
        }
        return ip;
    }*/

    // 获取IP 方法二:
    /*public String getIpAddress() {
        String ip = request.getHeader("X-Real-IP");
        if (!StringUtils.isEmpty(ip) && !"unknown".equalsIgnoreCase(ip)) {
            return ip;
        }
        ip = request.getHeader("X-Forwarded-For");
        if (!StringUtils.isEmpty(ip) && "unknown".equalsIgnoreCase(ip)) {
            int index = ip.indexOf(",");
            if (index != -1) {
                return ip.substring(0, index);
            } else {
                return ip;
            }
        } else {
            return request.getRemoteAddr();
        }
    }*/
    
    //获取IP 方法三
    public String getIpAddress() throws SocketException {
        Enumeration e = NetworkInterface.getNetworkInterfaces();
        String ip = null;
        while (e.hasMoreElements()) {
            NetworkInterface network = (NetworkInterface) e.nextElement();
            Enumeration enumeration = network.getInetAddresses();
            while (enumeration.hasMoreElements()) {
                InetAddress  inetAddress = (InetAddress) enumeration.nextElement();
                String hostAddress = inetAddress.getHostAddress();
                if (hostAddress.length() == 11){
                    ip = hostAddress;
                }
            }
        }
        return ip;
    }
}

7.Spring的applicationContext.xml配置

这里的东西是死的,就不多说了

<!--aop配置-->
    <!--开启spring对aop的注解支持-->
    <aop:aspectj-autoproxy expose-proxy="true" proxy-target-class="true"></aop:aspectj-autoproxy>

    <!--开启对类的强制代理-->
    <aop:config proxy-target-class="true"></aop:config>

    <!--扫描的包,下面是包含Controller,-->
    <context:component-scan base-package="com.arvin.crm.service">
        <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
    </context:component-scan>

    <aop:config>
        <!--定义切点-->
        <aop:pointcut id="pointcut" expression="execution(* com.arvin.crm.web.controller.*Controller.*(..))"/>
        <!--配置切面类-->
        <aop:aspect ref="aopAspect">
            <!--定义切点,切的方法,和要切谁-->
            <aop:around method="aroundAdvice" pointcut-ref="pointcut"/>
        </aop:aspect>
    </aop:config>

    <!--配置切面的类-->
    <bean id="aopAspect" class="com.arvin.crm.aspect.SystemLogAopAspect"/>

8.补充Controller使用这个注解

需要在Springmvc的配置文件中进行配置

applicationContext-mvc.xml

<!-- 自动扫描该包,使SpringMVC认为包下用了@controller注解的类是控制器 -->
    <context:component-scan base-package="com.arvin.crm.web.controller" />


    <aop:aspectj-autoproxy expose-proxy="true" proxy-target-class="true"></aop:aspectj-autoproxy>

    <aop:config proxy-target-class="true"></aop:config>

结语

到这里基本就结束了,但是我配完了发现有一个问题,日志量非常大啊,很占空间,所以准备加个定时器定期清理,说实话早忘了,好在我写了blog,哈哈哈,在这里 https://segmentfault.com/a/11...

原文  https://segmentfault.com/a/1190000022226338
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