java打印HTTP請求頭信息

	public void test(HttpServletRequest request) {
        Enumeration<String> headerNames = request.getHeaderNames();
        System.out.println("headerNames===" + headerNames);
        while(headerNames.hasMoreElements()) {//判斷是否還有下一個元素
            String nextElement = headerNames.nextElement();//獲取headerNames集合中的請求頭
            String header2 = request.getHeader(nextElement);//通過請求頭得到請求內容
            System.out.println("請求頭=========={}" + nextElement + "VALUE:" + header2);
            //System.out.println(nextElement+":"+header2);
        }
    }