1.创建日志处理的切面类
package com.zhang.ssm.controller;
import com.zhang.ssm.domain.SysLog;
import com.zhang.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.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 request;
@Autowired
private ISysLogService sysLogService;
private Date visitTime; //开始时间
private Class clazz; //访问的类
private Method method;//访问的方法
//前置通知 主要是获取开始时间,执行的类是哪一个,执行的是哪一个方法
@Before("execution(* com.itheima.ssm.controller.*.*(..))")
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(); //具体要访问的类
String methodName = jp.getSignature().getName(); //获取访问的方法的名称
Object[] args = jp.getArgs();//获取访问的方法的参数
//获取具体执行的方法的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();
}
clazz.getMethod(methodName, classArgs);
}
}
//后置通知
@After("execution(* com.itheima.ssm.controller.*.*(..))")
public void doAfter(JoinPoint jp) throws Exception {
long time = new Date().getTime() - visitTime.getTime(); //获取访问的时长
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
SecurityContext context = SecurityContextHolder.getContext();//从上下文中获了当前登录的用户
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();
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完成操作
sysLogService.save(sysLog);
}
}
}
}
}
在切面类中我们需要获取登录用户的username,还需要获取ip地址,我们怎么处理?
username获取
SecurityContextHolder获取
ip地址获取
ip地址的获取我们可以通过request.getRemoteAddr()方法获取到。
在Spring中可以通过RequestContextListener来获取request或session对象。