spring security自定义拦截controller注解

1.自定义一个注解，对标识了这个注解的方法进行拦截

package com.ruoyi.wx.api.annotation;

import java.lang.annotation.*;

@Target({ElementType.METHOD, ElementType.TYPE})
@Retention(RetentionPolicy.RUNTIME)
@Inherited
@Documented
public @interface User {

    String value() default "";
}

2.添加拦截器，实现MethodInterceptor接口。

import org.aopalliance.intercept.MethodInterceptor;
import org.aopalliance.intercept.MethodInvocation;

public class MyMethodInterceptor implements MethodInterceptor {


    @Override
    public Object invoke(MethodInvocation methodInvocation) throws Throwable {
        Object result = null;
        try {
            System.out.println("方法执行之前：" + methodInvocation.getMethod().toString());

            String name = methodInvocation.getMethod().getName();
            System.out.println(name + "开始执行");

            result = methodInvocation.proceed();
            System.out.println("方法执行之后的响应结果：" + result.toString());
            return result;
        } catch (Exception e) {
            e.printStackTrace();
            return result;
        }
    }
}

3.配置Advisor，将切点，拦截器加入到DefaultPointcutAdvisor中。

import org.springframework.aop.aspectj.AspectJExpressionPointcut;
import org.springframework.aop.support.DefaultPointcutAdvisor;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
public class AopConfig {

    // 拦截方法的SpEL表达式，这里表示拦截标记了TestInterceptor注解的方法
    public static final String traceExecution = "@annotation(com.ruoyi.wx.api.annotation.User)";

    /**
     * 对切点进行增强
     */
    @Bean
    public DefaultPointcutAdvisor defaultPointcutAdvisor() {
        // 创建拦截器
        MyMethodInterceptor interceptor = new MyMethodInterceptor();
        // 配置切点
        AspectJExpressionPointcut pointcut = new AspectJExpressionPointcut();
        pointcut.setExpression(traceExecution);
        // 配置增强类advisor
        DefaultPointcutAdvisor advisor = new DefaultPointcutAdvisor();
        advisor.setPointcut(pointcut);
        advisor.setAdvice(interceptor);
        return advisor;
    }
}

4.新建controller测试

拦截加了@User注解的controller

没加注解之前: 正常输出 

import com.ruoyi.common.core.domain.AjaxResult;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
@RequestMapping("/wx/api/")
public class Test1Controller {

    @GetMapping("/test")
    public AjaxResult test() {
        String msg = "test: 这是我返回的数据";
        System.out.println(msg);
        return AjaxResult.success(msg);
    }
}

 加注解之后: 进拦截器

import com.ruoyi.common.core.domain.AjaxResult;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
@RequestMapping("/wx/api/")
public class Test1Controller {

    @User
    @GetMapping("/test")
    public AjaxResult test() {
        String msg = "test: 这是我返回的数据";
        System.out.println(msg);
        return AjaxResult.success(msg);
    }
}