Java代码中获取request和response

有时候我们接口内需要对HttpServletRequest 和HttpServletResponse 进行操作，很多时候我们都是在接口上加上参数，然后一层层传递下去，如：

这样接口命名很不雅观，其实我们可以在需要使用的时候获取一下就可以了。

直接调用工具类获取使用：

HttpServletRequest request = RequestHolder.getRequest();
HttpServletResponse response = RequestHolder.getResponse();

工具类：

import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

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

/**
 * 获取 HttpServletRequest
 * @author gourd
 * @date 2018-11-24
 */
public class RequestHolder {

    public static HttpServletRequest getRequest(){
        HttpServletRequest req = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getRequest();
        return req;
    }

    public static HttpServletResponse getResponse(){
        HttpServletResponse resp = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getResponse();
        return resp;
    }
}