SpringColud TokenFilter

package com.example.apigeteway.filter;

import com.netflix.zuul.ZuulFilter;
import com.netflix.zuul.context.RequestContext;
import org.springframework.stereotype.Component;

import javax.servlet.http.HttpServletRequest;

import static org.springframework.cloud.netflix.zuul.filters.support.FilterConstants.PRE_DECORATION_FILTER_ORDER;
import static org.springframework.cloud.netflix.zuul.filters.support.FilterConstants.PRE_TYPE;

/**
 * @Title: PreFilter PostFilter
 * @ProjectName api-geteway
 * @Desc 判断token
 * @date 2019/12/1616:34
 */
@Component
public class PreTokenFilter extends ZuulFilter {
    @Override
    public String filterType() {
        return PRE_TYPE;
    }

    @Override
    public int filterOrder() {
        return PRE_DECORATION_FILTER_ORDER - 1;
    }

    /**
     * false 不启用
     * @return
     */
    @Override
    public boolean shouldFilter() {
        return false;
    }

    @Override
    public Object run() {
        RequestContext requestContext = RequestContext.getCurrentContext();
        HttpServletRequest request = requestContext.getRequest();
        // 这里是从参数中,也可以从header中 或者 cookie中
        String token = request.getParameter("token");
       /* if (StringUtils.isEmpty(token)) {
            requestContext.setSendZuulResponse(false);
            requestContext.setResponseStatusCode(HttpStatus.UNAUTHORIZED.value());
        }*/
        return null;
    }
}