一、数据库与表结构
(1)日志表信息描述 sysLog
(2)对应的SQL 语句
--选用的是Oracle 数据库
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)对应的实体类 Syslog
@Data
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;
/**
* 将日期转换为字符串输入到页面上时使用
* @return
*/
public String getVisitTimeStr() {
if(visitTime!=null){
visitTimeStr = DateUtils.date2String(visitTime,"yyyy-MM-dd HH:mm:ss");
}
return visitTimeStr;
}
}
对于日期的转换可以参考
(4)开启注解AOP配置
二、创建切面类处理日志
@Component
@Aspect
public class LogAop {
@Autowired
private HttpServletRequest request;
@Autowired
private ISysLogService sysLogService;
//开始时间
private Date visitTime;
//访问的类
private Class clazz;
//访问的方法
private Method method;
/**
* 前置通知 主要是获取开始时间,执行的类是哪一个,执行的是哪一个方法
*
* @param jp
* @throws NoSuchMethodException
*/
@Before("execution(* ssm.controller.*.*(..))")
public void doBefore(JoinPoint jp) throws NoSuchMethodException {
//当前时间就是开始访问的时间
visitTime = new Date();
//具体要访问的类
clazz = jp.getTarget().getClass();
//获取访问的方法的名称
String methodName = jp.getSignature().getName();
//获取访问的方法的参数
Object[] args = jp.getArgs();
//获取具体执行的方法的Method对象
if (args == null || args.length == 0) {
//用来获取无参数的方法
method = clazz.getMethod(methodName);
} else {
Class[] classArgs = new Class[args.length];
for (int i = 0; i < args.length; i++) {
classArgs[i] = args[i].getClass();
}
//用来获取含参数的方法
clazz.getMethod(methodName, classArgs);
}
}
/**
* 后置通知
*
* @param jp
* @throws Exception
*/
@After("execution(* ssm.controller.*.*(..))")
public void doAfter(JoinPoint jp) throws Exception {
//获取访问的时长
long time = (new Date()).getTime() - visitTime.getTime();
String url = "";
//获取url
if (clazz != null && method != null && clazz != LogAop.class) {
//1.获取类上的@RequestMapping("/orders")
RequestMapping classAnnotation = (RequestMapping) clazz.getAnnotation(RequestMapping.class);
if (classAnnotation != null) {
String[] classValue = classAnnotation.value();
//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
String ip = request.getRemoteAddr();
//获取当前操作的用户
//从上下文中获了当前登录的用户
SecurityContext context = SecurityContextHolder.getContext();
User user = (User) context.getAuthentication().getPrincipal();
String username = user.getUsername();
//将日志相关信息封装到SysLog对象
SysLog sysLog = new SysLog();
//执行时长
sysLog.setExecutionTime(time);
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完成操作
sysLogService.save(sysLog);
}
}
}
}
}
注意:
(1)用户是通过Spring Security 提供的一个 SecurityContext 获取的
(2)访问的IP是通过request对象,这需要在web.xml 中添加一个 Listener
<listener>
<listener-class>org.springframework.web.context.request.RequestContextListener</listener-class>
</listener>
(3)URL的获取是通过反射完成的,这里用于指访问的路径类似:
三、控制层Controller
@Controller
@RequestMapping("/sysLog")
public class SysLogController {
@Autowired
private ISysLogService sysLogService;
//查询所有日志操作
@RequestMapping("/findAll.do")
public ModelAndView findAll() throws Exception {
ModelAndView mv=new ModelAndView();
List<SysLog> sysLogList= sysLogService.findAll();
mv.addObject("sysLogs",sysLogList);
mv.setViewName("syslog-list");
return mv;
}
}
四、业务层Service
public interface ISysLogService {
/**
* 保存日志操作
* @param sysLog
* @throws Exception
*/
public void save(SysLog sysLog) throws Exception;
/**
* 查询日志操作
* @return
* @throws Exception
*/
List<SysLog> findAll() throws Exception;
}
@Service("sysLogService")
@Transactional
public class SysLogServiceImpl implements ISysLogService {
@Autowired
private ISysLogDao sysLogDao;
@Override
public List<SysLog> findAll() throws Exception {
return sysLogDao.findAll();
}
@Override
public void save(SysLog sysLog) throws Exception {
sysLogDao.save(sysLog);
}
}
五、持久层 Dao
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;
@Select("select * from sysLog")
List<SysLog> findAll() throws Exception;
}