Http请求在Request headers增加参数后台获取不到问题

Request headers增加参数，直接访问可以获取到，部署到服务器获取不到的原因

参数

access_token:"ddddd";

由于服务器是通过nginx代理转发的，它不认下划线，所以通过nginx代理后后台获取不到

改变参数名或者nginx增加配置

underscores_in_headers on

打印headers的值

public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {//根据投信息的key获得值String headVal = request.getHeader("Host");System.out.println("Host:" + headVal);// Host:localhost:8080//通过getHeaderNames获得所有头名字的Enumeration集合Enumeration<String> headNames = request.getHeaderNames();while(headNames.hasMoreElements()){String headName = headNames.nextElement();System.out.println(headName+":"+request.getHeader(headName));}}