springboot2 攔截器無效

在網(wǎng)上找了好多，基本上都一個(gè)樣，按照一步一步來，都是無效，下面是我的配置：

Config:

import com.example.demo.interceptor.OneInterceptor;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

@Configuration
public class InterceptorConfig implements WebMvcConfigurer {

@Override
public void addInterceptors(InterceptorRegistry registry) {
    registry.addInterceptor(new OneInterceptor()).addPathPatterns("/**");
}

}

OneInterceptor:

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

@Component
public class OneInterceptor implements HandlerInterceptor {

private Logger logger = LoggerFactory.getLogger(OneInterceptor.class);

@Override
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object object) throws Exception {
    logger.debug("攔截。。。");
    return false;
}

@Override
public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) {
    System.err.println("post");
}

@Override
public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) {
    System.err.println("after");
}

}

無論訪問什么路徑都不會走攔截器，
不知道哪里配置錯(cuò)了，求大神解答！