使用Spring AOP来进行权限验证

使用Spring AOP前需要先引入相应的包

<dependency>
    <groupId>org.aspectj</groupId>
    <artifactId>aspectjrt</artifactId>
    <version>1.8.10</version>
</dependency>

<dependency>
    <groupId>org.aspectj</groupId>
    <artifactId>aspectjweaver</artifactId>
    <version>1.8.10</version>
</dependency>

然后创建切面类

package com.homework.filter;

import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.springframework.stereotype.Component;

/**
 * Created by ytt on 2017/1/11.
 */

@Aspect
@Component
public class LoginCheckAspect {

    @Around(value = "@annotation(org.springframework.web.bind.annotation.RequestMapping)")
    public Object checkUser(ProceedingJoinPoint pjp) throws Throwable {

        //获取参数
        Object[] args = pjp.getArgs();
        System.out.println("在进入方法之前");
        //放行
        Object proceed = pjp.proceed();
        System.out.println("执行完方法之后");
        return proceed;
    }

    @Before("execution(* com.homework.controller..*.*(..))")
    public void before(){
        System.out.println("在方法执行之前执行");
    }
}

这样就能完成拦截了