threadLocal获取当前登录用户id

BaseContext

public class BaseContext {

    public static ThreadLocal<Long> threadLocal = new ThreadLocal<>();

    public static void setCurrentId(Long id) {
        threadLocal.set(id);
    }

    public static Long getCurrentId() {
        return threadLocal.get();
    }

    public static void removeCurrentId() {
        threadLocal.remove();
    }

}

在拦截器中将当前用户的信息放入threadlocal

/**
 * jwt令牌校验的拦截器
 */
@Component
@Slf4j
public class JwtTokenAdminInterceptor implements HandlerInterceptor {

    @Autowired
    private JwtProperties jwtProperties;

    /**
     * 校验jwt
     *
     * @param request
     * @param response
     * @param handler
     * @return
     * @throws Exception
     */
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        
		//.............................
       
        //2、校验令牌
        try {
            //.................
            Claims claims = JwtUtil.parseJWT(jwtProperties.getAdminSecretKey(), token);
            Long empId = Long.valueOf(claims.get(JwtClaimsConstant.EMP_ID).toString());
            log.info("当前员工id：", empId);
            /将用户id存储到ThreadLocal
            BaseContext.setCurrentId(empId);
            
            //3、通过，放行
            return true;
        } catch (Exception ex) {
            //......................
        }
    }
}

然后在想要使用的地方调用getCurrentId方法就可以