Java SSM 项目实战 day09 SSMAOP日志

Posted 2021-08-22 蓝盒子bluebox

Java SSM 项目实战 day02 功能介绍，SSM整合，数据库和IDEA的maven工程搭建，产品信息查询和添加
Java SSM 项目实战 day03 功能介绍，订单的操作，订单的增删改查
Java SSM 项目实战 day04 功能介绍，订单的操作，订单的增删改查，实现登录功能
Java SSM 项目实战 day05 用户操作
Java SSM 项目实战 day06 角色操作,资源权限操作
Java SSM 项目实战 day07 SpringSecurity源码分析
Java SSM 项目实战 day07用户角色关联操作，添加角色，以及添加权限
Java SSM 项目实战 day08 方法级别的权限操作 服务器端的权限控制（JSR-250注解）（支持表达式的注解）（@Secured）以及页面端的权限控制
Java SSM 项目实战 day09 SSMAOP日志

一、数据库与表结构

1、日志表信息描述sysLog

2、sql语句

CREATE TABLE sysLog(
	id VARCHAR2(32) default SYS_GUID() PRIMARY KEY,
	visitTime timestamp,
	username VARCHAR2(50),
	ip VARCHAR2(30),
	url VARCHAR2(50),
	executionTime int,
	method VARCHAR2(200)
)

3、创建对应的实体类

package com.itzheng.ssm.domain;
import java.util.Date;
public class SysLog {
    private String id;
    private Date visitTime;
    private String visitTimeStr;
    private String username;
    private String ip;
    private String url;
    private Long executionTime;
    private String method;

    public SysLog() {
    }

    public SysLog(String id, Date visitTime, String visitTimeStr, String username, String ip, String url, Long executionTime, String method) {
        this.id = id;
        this.visitTime = visitTime;
        this.visitTimeStr = visitTimeStr;
        this.username = username;
        this.ip = ip;
        this.url = url;
        this.executionTime = executionTime;
        this.method = method;
    }

    public String getId() {
        return id;
    }

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

    public Date getVisitTime() {
        return visitTime;
    }

    public void setVisitTime(Date visitTime) {
        this.visitTime = visitTime;
    }

    public String getVisitTimeStr() {
        return visitTimeStr;
    }

    public void setVisitTimeStr(String visitTimeStr) {
        this.visitTimeStr = visitTimeStr;
    }

    public String getUsername() {
        return username;
    }

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

    public String getIp() {
        return ip;
    }

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

    public String getUrl() {
        return url;
    }

    public void setUrl(String url) {
        this.url = url;
    }

    public Long getExecutionTime() {
        return executionTime;
    }

    public void setExecutionTime(Long executionTime) {
        this.executionTime = executionTime;
    }

    public String getMethod() {
        return method;
    }

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

    @Override
    public String toString() {
        return "SysLog{" +
                "id='" + id + '\\'' +
                ", visitTime=" + visitTime +
                ", visitTimeStr='" + visitTimeStr + '\\'' +
                ", username='" + username + '\\'' +
                ", ip='" + ip + '\\'' +
                ", url='" + url + '\\'' +
                ", executionTime=" + executionTime +
                ", method='" + method + '\\'' +
                '}';
    }
}

二、基于AOP日志处理（记录日志信息）

1、在控制层创建LogAop类

修改web.xml,添加一下内容

<listener>
     <listener-class>org.springframework.web.context.request.RequestContextListener</listener-class>
</listener>

LogAop类

package com.itzheng.ssm.controller;

import com.itzheng.ssm.domain.SysLog;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.After;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.core.context.SecurityContext;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.core.userdetails.User;
import org.springframework.stereotype.Component;
import org.springframework.web.bind.annotation.RequestMapping;

import javax.servlet.http.HttpServletRequest;
import java.lang.annotation.Annotation;
import java.lang.reflect.Method;
import java.util.Date;

@Component
@Aspect
public class LogAop {

    @Autowired
    private HttpServletRequest requset;

    private Date visitTime;//开始的时间
    private Class clazz;//访问的类
    private Method method;//访问的方法


    //前置通知   主要是获取我们的开始的时间，执行类的哪一个，执行的是哪一个方法
    @Before("execution(* com.itzheng.ssm.controller.*.*(..))")//拦截controller类当中的所有的方法
    public void doBefore(JoinPoint jp) throws NoSuchMethodException {

        visitTime = new Date();//当前时间就是开始访问的时间
        clazz = jp.getTarget().getClass();//获取当前具体要访问的类

        String methodName = jp.getSignature().getName();//获取当前访问具体方法的名称

        Object[] args = jp.getArgs();//获取访问方法的参数

        //以下代码获取到了具体执行的方法的method对象
        if(args == null || args.length == 0){
            method = clazz.getMethod(methodName);//只能获取无参数的方法
        }else {

            Class[] classArgs = new Class[args.length];

            for (int i = 0; i < args.length;i++){
                classArgs[i] = args[i].getClass();//获取每一个方法参数，放到classArgs数组当中
            }
            method = clazz.getMethod(methodName,classArgs);//只能获取无参数的方法
        }

    }
    //后置通知
    @After("execution(* com.itzheng.ssm.controller.*.*(..))")//拦截controller类当中的所有的方法
    public void doAfter(JoinPoint jp){

        long time = new Date().getTime()-visitTime.getTime();//获取了访问的时长

        String url = "";
        //获取url
        if( clazz != null && method != null && clazz != LogAop.class){

            //1.获取类上的这个注解@RequestMapping("/orders")的值

            RequestMapping classAnnotation = (RequestMapping)clazz.getAnnotation(RequestMapping.class);

            if(classAnnotation != null){
                String[] classValue = classAnnotation.value();//获取到了/orders

                //2、获取方法上的@RequestMapping(xxx)

                RequestMapping methodAnnotation = method.getAnnotation(RequestMapping.class);

                if(methodAnnotation != null){
                    String [] methodValue =  methodAnnotation.value();

                    url = classValue[0] + methodValue[0];
                }

            }

        }

        //获取访问的IP地址
        String ip = requset.getRemoteAddr();


        //如何获取当前操作的用户

        SecurityContext context = SecurityContextHolder.getContext();//从上下文当中获取当前登录的用户

        User user = (User)context.getAuthentication().getPrincipal();

        String username = user.getUsername();

        //将日志相关信息分装到SysLog对象当中

        SysLog sysLog = new SysLog();
        sysLog.setExecutionTime(time);//执行时长
        sysLog.setIp(ip);
        sysLog.setMethod("[类名] "+clazz.getName()+"[方法名] " + method.getName());
        sysLog.setUrl(url);
        sysLog.setUsername(username);
        sysLog.setVisitTime(visitTime);

        //调用Service完成数据库的插入操作（即日志的记录操作）

    }

}

2、创建对应的Service接口和对应的实现类

（1）ISysLogService接口

package com.itzheng.ssm.service;

import com.itzheng.ssm.domain.SysLog;

public interface ISysLogService {

    public void save(SysLog sysLog) throws Exception;

}

（2）SysLogServiceImpl

package com.itzheng.ssm.service.impl;

import com.itzheng.ssm.domain.SysLog;
import com.itzheng.ssm.service.ISysLogService;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

@Service
@Transactional
public class SysLogServiceImpl implements ISysLogService {

    @Override
    public void save(SysLog sysLog) throws Exception {



    }
}

3、创建对应的DAO

package com.itzheng.ssm.dao;

import com.itzheng.ssm.domain.SysLog;
import org.apache.ibatis.annotations.Insert;

public interface ISysLogDao {

    @Insert("")
    public void save(SysLog sysLog) throws Exception ;

}

4、完善上述所有的业务以及dao

（1）SysLogServiceImpl

package com.itzheng.ssm.service.impl;

import com.itzheng.ssm.dao.ISysLogDao;
import com.itzheng.ssm.domain.SysLog;
import com.itzheng.ssm.service.ISysLogService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

@Service
@Transactional
public class SysLogServiceImpl implements ISysLogService {

    @Autowired
    private ISysLogDao sysLogDao;

    @Override
    public void save(SysLog sysLog) throws Exception {
        sysLogDao.save(sysLog);
    }
}

（2）LogAop

    @Autowired
    private ISysLogService sysLogService;

  //调用Service完成数据库的插入操作（即日志的记录操作）
        sysLogService.save(sysLog);

（3）ISysLogDao

package com.itzheng.ssm.dao;

import com.itzheng.ssm.domain.SysLog;
import org.apache.ibatis.annotations.Insert;

public interface ISysLogDao {

    @Insert("insert into syslog(visitTime,username,ip,url,executionTime,method) values(#{visitTime},#{username},#{ip},#{url},#{executionTime},#{method})")
    public void save(SysLog sysLog) throws Exception ;

}

（4）完善LogAop类

package com.itzheng.ssm.controller;

import com.itzheng.ssm.domain.SysLog;
import com.itzheng.ssm.service.ISysLogService;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.After;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpRequest;
import org.springframework.http.server.ServletServerHttpRequest;
import org.springframework.security.core.context.SecurityContext;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.core.userdetails.User;
import org.springframework.stereotype.Component;
import org.springframework.web.bind.annotation.RequestMap
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