无法加载静态资源问题

如果你的配置文件没有问题，那么多半就是你拦截规则的问题我的拦截规则是：
addInterceptor.addPathPatterns("/**");
这里拦截了所有的 URL，所以静态资源 localhost:8080/css/xx.css 等静态资源也被拦截了。
拦截规则问题

package com.heoclark.webapp.security;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.InterceptorRegistration;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
import org.springframework.web.servlet.handler.HandlerInterceptorAdapter;
@Configuration
public class WebSecurityConfig extends WebMvcConfigurerAdapter{
    /**
     * 登录session key
     */
    public final static String SESSION_KEY = "user";

    @Bean
    public SecurityInterceptor getSecurityInterceptor() {
        return new SecurityInterceptor();
    }

    public void addInterceptors(InterceptorRegistry registry) {
        InterceptorRegistration addInterceptor = registry.addInterceptor(getSecurityInterceptor());
        // 排除配置
//        addInterceptor.excludePathPatterns("/error");
        addInterceptor.excludePathPatterns("/login**");
        // 拦截配置
        // 这里 /** 相当于拦截了所有URL，包括 localhost:8080/css/xxx.css。所以拦截规则是有问题的
        addInterceptor.addPathPatterns("/**");    

    }

    private class SecurityInterceptor extends HandlerInterceptorAdapter {
        @Override
        public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
            HttpSession session = request.getSession();
            if (session.getAttribute(SESSION_KEY) != null)
                return true;
            // 跳转登录
            String url = "/login";
            response.sendRedirect(url);
            return false;
        }
    }
}