最近开发有一个需求需要在 aop 中获取request response ，搜索许久没有答案，故此记录📝～

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aop 获取

package com.example.easy_im.aop;import com.example.easy_im.Context;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.springframework.stereotype.Component;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;import java.util.Objects;@Aspect
@Component
@Slf4j
public class TokenAop {@Around("@annotation(com.example.easy_im.annotation.NeedToken)")public Object check(ProceedingJoinPoint pjp) throws Throwable {try {HttpServletRequest servletRequest = ((ServletRequestAttributes) Objects.requireNonNull(RequestContextHolder.getRequestAttributes())).getRequest();HttpServletResponse servletResponse = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getResponse();String authorizationHeader = servletRequest.getHeader("Authorization");if(StringUtils.isBlank(authorizationHeader) || servletResponse == null) {servletResponse.setStatus(HttpServletResponse.SC_UNAUTHORIZED);return "请携带Authorization请求头";}// 执行目标方法Object proceed = pjp.proceed();Context.clear();return proceed;} catch (Exception e) {return "fail";}}
}

其他部分代码

package com.example.easy_im.annotation;import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.METHOD)
public @interface NeedToken {
}

package com.example.easy_im.controller;import com.example.easy_im.Context;
import com.example.easy_im.annotation.NeedToken;
import com.example.easy_im.dao.UserDao;
import com.example.easy_im.entity.User;
import com.example.easy_im.util.TokenUtil;
import jakarta.annotation.Resource;
import org.springframework.data.domain.Example;
import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.annotation.*;import java.util.Optional;@RestController
@RequestMapping("/user")
public class UserController {@Resourceprivate UserDao userDao;@PostMapping("/login")public String login(@Validated @RequestBody User user) {User obj = userDao.findUserByNameAndPwd(user.getUserName(), user.getUserPwd());if(obj == null) {return "fail";}return TokenUtil.generateToken(obj);}@DeleteMapping("/logout")@NeedTokenpublic String logout() {String token = Context.getToken();TokenUtil.destroyToken(token);return "ok";}}