简易后台管理系统(二)

package com.lcl.demo.sbDemo.livable.configuration.annotation; import java.lang.reflect.Method; import java.util.Map; import javax.servlet.http.HttpServletRequest; import org.aspectj.lang.JoinPoint; import org.aspectj.lang.annotation.Aspect; import org.aspectj.lang.annotation.Before; import org.aspectj.lang.annotation.Pointcut; import org.springframework.stereotype.Component; import org.springframework.web.context.request.RequestContextHolder; import org.springframework.web.context.request.ServletRequestAttributes; @Component @Aspect public class MyAspect { @Pointcut("@annotation(com.lcl.demo.sbDemo.livable.configuration.annotation.MyAnnotation)") public void myAspect(){} @Before("myAspect()") public void doBeforeMyAspect(JoinPoint joinPoint){ HttpServletRequest request = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getRequest(); Map<String, String[]> paraMap = request.getParameterMap(); //根据joinPoint获取方法上的注入值 String operate = getControllerOperate(joinPoint); boolean isSave = getControllerIsSave(joinPoint); //根据request获取请求中的参数值 String name = paraMap.get("name")!=null?paraMap.get("name")[0]:"游客"; String record = "[姓名]:"+name + " [操作]："+operate + " [存储]："+isSave; System.err.println("执行记录=："+record); //根据isSave决定是否存入数据库。 } /** * 获取注解中对方法的描述信息 用于Controller层注解 * * @param joinPoint 切点 * @return 方法描述 * @throws Exception */ public static String getControllerOperate(JoinPoint joinPoint) { String operate = ""; try { String targetName = joinPoint.getTarget().getClass().getName(); String methodName = joinPoint.getSignature().getName(); Object[] arguments = joinPoint.getArgs(); Class<?> targetClass = Class.forName(targetName); Method[] methods = targetClass.getMethods(); for (Method method : methods) { if (method.getName().equals(methodName)) { Class<?>[] clazzs = method.getParameterTypes(); if (clazzs.length == arguments.length) { operate = method.getAnnotation(MyAnnotation. class).operate(); break; } } } } catch (Exception e) { e.printStackTrace(); } return operate; } /** * 获取注解中对方法的描述信息 用于Controller层注解 * * @param joinPoint 切点 * @return 方法描述 * @throws Exception */ public static boolean getControllerIsSave(JoinPoint joinPoint) { boolean isSave = false; try { String targetName = joinPoint.getTarget().getClass().getName(); String methodName = joinPoint.getSignature().getName(); Object[] arguments = joinPoint.getArgs(); Class<?> targetClass = Class.forName(targetName); Method[] methods = targetClass.getMethods(); for (Method method : methods) { if (method.getName().equals(methodName)) { Class<?>[] clazzs = method.getParameterTypes(); if (clazzs.length == arguments.length) { isSave = method.getAnnotation(MyAnnotation. class).isSave(); break; } } } } catch (Exception e) { e.printStackTrace(); } return isSave; } }