添加nginx配置文件，解决nginx代理后无法获取客户端真实IP的问题

src/main/java/com/fjy/spring/interceptor/LoginInterceptor.java

@@ -2,7 +2,6 @@ package com.fjy.spring.interceptor;
 
 import com.fjy.spring.constant.GlobalConstant;
 import org.springframework.web.servlet.HandlerInterceptor;
-import org.springframework.web.servlet.ModelAndView;
 
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;